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-rw-r--r--spec/grammar/description.go71
-rw-r--r--spec/grammar/grammar.go160
-rw-r--r--spec/grammar/parser/clexspec.json1
-rw-r--r--spec/grammar/parser/lexer.go297
-rw-r--r--spec/grammar/parser/lexer_test.go236
-rw-r--r--spec/grammar/parser/lexspec.json123
-rw-r--r--spec/grammar/parser/parser.go582
-rw-r--r--spec/grammar/parser/parser_test.go1211
-rw-r--r--spec/grammar/parser/syntax_error.go45
-rw-r--r--spec/grammar/parser/vartan_lexer.go1339
-rw-r--r--spec/grammar/util.go21
-rw-r--r--spec/test/parser.go336
-rw-r--r--spec/test/parser_test.go411
-rw-r--r--spec/test/tree-report.json1
-rw-r--r--spec/test/tree.json1
-rw-r--r--spec/test/tree.vartan87
-rw-r--r--spec/test/tree_lexer.go1024
-rw-r--r--spec/test/tree_parser.go716
-rw-r--r--spec/test/tree_semantic_action.go367
19 files changed, 0 insertions, 7029 deletions
diff --git a/spec/grammar/description.go b/spec/grammar/description.go
deleted file mode 100644
index 0d2a0b7..0000000
--- a/spec/grammar/description.go
+++ /dev/null
@@ -1,71 +0,0 @@
-package grammar
-
-type Terminal struct {
- Number int `json:"number"`
- Name string `json:"name"`
- Pattern string `json:"pattern"`
- Precedence int `json:"prec"`
- Associativity string `json:"assoc"`
-}
-
-type NonTerminal struct {
- Number int `json:"number"`
- Name string `json:"name"`
-}
-
-type Production struct {
- Number int `json:"number"`
- LHS int `json:"lhs"`
- RHS []int `json:"rhs"`
- Precedence int `json:"prec"`
- Associativity string `json:"assoc"`
-}
-
-type Item struct {
- Production int `json:"production"`
- Dot int `json:"dot"`
-}
-
-type Transition struct {
- Symbol int `json:"symbol"`
- State int `json:"state"`
-}
-
-type Reduce struct {
- LookAhead []int `json:"look_ahead"`
- Production int `json:"production"`
-}
-
-type SRConflict struct {
- Symbol int `json:"symbol"`
- State int `json:"state"`
- Production int `json:"production"`
- AdoptedState *int `json:"adopted_state"`
- AdoptedProduction *int `json:"adopted_production"`
- ResolvedBy int `json:"resolved_by"`
-}
-
-type RRConflict struct {
- Symbol int `json:"symbol"`
- Production1 int `json:"production_1"`
- Production2 int `json:"production_2"`
- AdoptedProduction int `json:"adopted_production"`
- ResolvedBy int `json:"resolved_by"`
-}
-
-type State struct {
- Number int `json:"number"`
- Kernel []*Item `json:"kernel"`
- Shift []*Transition `json:"shift"`
- Reduce []*Reduce `json:"reduce"`
- GoTo []*Transition `json:"goto"`
- SRConflict []*SRConflict `json:"sr_conflict"`
- RRConflict []*RRConflict `json:"rr_conflict"`
-}
-
-type Report struct {
- Terminals []*Terminal `json:"terminals"`
- NonTerminals []*NonTerminal `json:"non_terminals"`
- Productions []*Production `json:"productions"`
- States []*State `json:"states"`
-}
diff --git a/spec/grammar/grammar.go b/spec/grammar/grammar.go
deleted file mode 100644
index bf1ea89..0000000
--- a/spec/grammar/grammar.go
+++ /dev/null
@@ -1,160 +0,0 @@
-package grammar
-
-import "strconv"
-
-type CompiledGrammar struct {
- Name string `json:"name"`
- Lexical *LexicalSpec `json:"lexical"`
- Syntactic *SyntacticSpec `json:"syntactic"`
- ASTAction *ASTAction `json:"ast_action"`
-}
-
-// StateID represents an ID of a state of a transition table.
-type StateID int
-
-const (
- // StateIDNil represents an empty entry of a transition table.
- // When the driver reads this value, it raises an error meaning lexical analysis failed.
- StateIDNil = StateID(0)
-
- // StateIDMin is the minimum value of the state ID. All valid state IDs are represented as
- // sequential numbers starting from this value.
- StateIDMin = StateID(1)
-)
-
-func (id StateID) Int() int {
- return int(id)
-}
-
-// LexModeID represents an ID of a lex mode.
-type LexModeID int
-
-const (
- LexModeIDNil = LexModeID(0)
- LexModeIDDefault = LexModeID(1)
-)
-
-func (n LexModeID) String() string {
- return strconv.Itoa(int(n))
-}
-
-func (n LexModeID) Int() int {
- return int(n)
-}
-
-func (n LexModeID) IsNil() bool {
- return n == LexModeIDNil
-}
-
-// LexModeName represents a name of a lex mode.
-type LexModeName string
-
-const (
- LexModeNameNil = LexModeName("")
- LexModeNameDefault = LexModeName("default")
-)
-
-func (m LexModeName) String() string {
- return string(m)
-}
-
-// LexKindID represents an ID of a lexical kind and is unique across all modes.
-type LexKindID int
-
-const (
- LexKindIDNil = LexKindID(0)
- LexKindIDMin = LexKindID(1)
-)
-
-func (id LexKindID) Int() int {
- return int(id)
-}
-
-// LexModeKindID represents an ID of a lexical kind and is unique within a mode.
-// Use LexKindID to identify a kind across all modes uniquely.
-type LexModeKindID int
-
-const (
- LexModeKindIDNil = LexModeKindID(0)
- LexModeKindIDMin = LexModeKindID(1)
-)
-
-func (id LexModeKindID) Int() int {
- return int(id)
-}
-
-// LexKindName represents a name of a lexical kind.
-type LexKindName string
-
-const LexKindNameNil = LexKindName("")
-
-func (k LexKindName) String() string {
- return string(k)
-}
-
-type RowDisplacementTable struct {
- OriginalRowCount int `json:"original_row_count"`
- OriginalColCount int `json:"original_col_count"`
- EmptyValue StateID `json:"empty_value"`
- Entries []StateID `json:"entries"`
- Bounds []int `json:"bounds"`
- RowDisplacement []int `json:"row_displacement"`
-}
-
-type UniqueEntriesTable struct {
- UniqueEntries *RowDisplacementTable `json:"unique_entries,omitempty"`
- UncompressedUniqueEntries []StateID `json:"uncompressed_unique_entries,omitempty"`
- RowNums []int `json:"row_nums"`
- OriginalRowCount int `json:"original_row_count"`
- OriginalColCount int `json:"original_col_count"`
- EmptyValue int `json:"empty_value"`
-}
-
-type TransitionTable struct {
- InitialStateID StateID `json:"initial_state_id"`
- AcceptingStates []LexModeKindID `json:"accepting_states"`
- RowCount int `json:"row_count"`
- ColCount int `json:"col_count"`
- Transition *UniqueEntriesTable `json:"transition,omitempty"`
- UncompressedTransition []StateID `json:"uncompressed_transition,omitempty"`
-}
-
-type CompiledLexModeSpec struct {
- KindNames []LexKindName `json:"kind_names"`
- Push []LexModeID `json:"push"`
- Pop []int `json:"pop"`
- DFA *TransitionTable `json:"dfa"`
-}
-
-type LexicalSpec struct {
- InitialModeID LexModeID `json:"initial_mode_id"`
- ModeNames []LexModeName `json:"mode_names"`
- KindNames []LexKindName `json:"kind_names"`
- KindIDs [][]LexKindID `json:"kind_ids"`
- CompressionLevel int `json:"compression_level"`
- Specs []*CompiledLexModeSpec `json:"specs"`
-}
-
-type SyntacticSpec struct {
- Action []int `json:"action"`
- GoTo []int `json:"goto"`
- StateCount int `json:"state_count"`
- InitialState int `json:"initial_state"`
- StartProduction int `json:"start_production"`
- LHSSymbols []int `json:"lhs_symbols"`
- AlternativeSymbolCounts []int `json:"alternative_symbol_counts"`
- Terminals []string `json:"terminals"`
- TerminalCount int `json:"terminal_count"`
- TerminalSkip []int `json:"terminal_skip"`
- KindToTerminal []int `json:"kind_to_terminal"`
- NonTerminals []string `json:"non_terminals"`
- NonTerminalCount int `json:"non_terminal_count"`
- EOFSymbol int `json:"eof_symbol"`
- ErrorSymbol int `json:"error_symbol"`
- ErrorTrapperStates []int `json:"error_trapper_states"`
- RecoverProductions []int `json:"recover_productions"`
-}
-
-type ASTAction struct {
- Entries [][]int `json:"entries"`
-}
diff --git a/spec/grammar/parser/clexspec.json b/spec/grammar/parser/clexspec.json
deleted file mode 100644
index d0ed3d3..0000000
--- a/spec/grammar/parser/clexspec.json
+++ /dev/null
@@ -1 +0,0 @@
-{"name":"vartan","initial_mode_id":1,"mode_names":["","default","terminal","string_literal"],"kind_names":["","white_space","newline","line_comment","kw_fragment","identifier","terminal_open","string_literal_open","colon","or","semicolon","label_marker","expansion","directive_marker","ordered_symbol_marker","l_paren","r_paren","pattern","escape_symbol","terminal_close","char_seq","string_literal_close"],"kind_ids":[null,[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16],[0,17,18,19],[0,20,21]],"compression_level":2,"specs":[null,{"kind_names":["","white_space","newline","line_comment","kw_fragment","identifier","terminal_open","string_literal_open","colon","or","semicolon","label_marker","expansion","directive_marker","ordered_symbol_marker","l_paren","r_paren"],"push":[0,0,0,0,0,0,2,3,0,0,0,0,0,0,0,0,0],"pop":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"dfa":{"initial_state_id":1,"accepting_states":[0,0,1,2,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,5,5,5,5,5,5,4,5,0,0,2,6,7,8,9,10,11,12,13,14,15,16],"row_count":47,"col_count":256,"transition":{"unique_entries":{"original_row_count":27,"original_col_count":256,"empty_value":0,"entries":[5,5,5,5,5,5,5,5,5,5,0,5,5,0,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,9,9,9,9,9,9,9,9,9,9,9,9,11,13,13,15,18,18,18,21,2,35,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,36,43,44,0,0,37,45,46,0,0,0,0,33,4,32,32,32,32,32,32,32,32,32,32,38,40,0,0,0,0,41,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,32,0,32,32,32,32,32,24,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,39,0,0,0,0,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,32,32,32,32,32,32,32,32,32,32,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,32,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,25,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,32,0,26,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,32,0,32,32,32,32,32,32,27,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,32,0,32,32,32,32,32,32,32,32,32,32,32,32,28,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,32,0,32,32,32,32,29,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,32,0,32,32,32,32,32,32,32,32,32,32,32,32,32,30,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,32,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,31,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,32,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16,16,16,16,16,16,1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,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,-1,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,-1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,-1,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,-1,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1],"row_displacement":[0,0,246,1194,362,1258,426,1114,490,554,618,1355,682,245,1259,746,1323,810,1162,874,938,1002,1371,1066]},"row_nums":[0,1,2,3,2,4,2,5,2,6,2,7,8,2,9,10,2,11,12,2,13,2,14,2,15,2,16,2,17,2,18,19,2,20,21,2,22,23,2,0],"original_row_count":40,"original_col_count":256,"empty_value":0}}}]}
diff --git a/spec/grammar/parser/lexer.go b/spec/grammar/parser/lexer.go
deleted file mode 100644
index 31dcab2..0000000
--- a/spec/grammar/parser/lexer.go
+++ /dev/null
@@ -1,297 +0,0 @@
-//go:generate maleeni compile lexspec.json -o clexspec.json
-//go:generate maleeni-go clexspec.json --package parser
-
-package parser
-
-import (
- _ "embed"
- "fmt"
- "io"
- "regexp"
- "strings"
-
- verr "error"
-)
-
-type tokenKind string
-
-const (
- tokenKindKWFragment = tokenKind("fragment")
- tokenKindID = tokenKind("id")
- tokenKindTerminalPattern = tokenKind("terminal pattern")
- tokenKindStringLiteral = tokenKind("string")
- tokenKindColon = tokenKind(":")
- tokenKindOr = tokenKind("|")
- tokenKindSemicolon = tokenKind(";")
- tokenKindLabelMarker = tokenKind("@")
- tokenKindDirectiveMarker = tokenKind("#")
- tokenKindExpantion = tokenKind("...")
- tokenKindOrderedSymbolMarker = tokenKind("$")
- tokenKindLParen = tokenKind("(")
- tokenKindRParen = tokenKind(")")
- tokenKindNewline = tokenKind("newline")
- tokenKindEOF = tokenKind("eof")
- tokenKindInvalid = tokenKind("invalid")
-)
-
-var (
- reIDChar = regexp.MustCompile(`^[0-9a-z_]+$`)
- reIDInvalidDigitsPos = regexp.MustCompile(`^[0-9]`)
-)
-
-type Position struct {
- Row int
- Col int
-}
-
-func newPosition(row, col int) Position {
- return Position{
- Row: row,
- Col: col,
- }
-}
-
-type token struct {
- kind tokenKind
- text string
- pos Position
-}
-
-func newSymbolToken(kind tokenKind, pos Position) *token {
- return &token{
- kind: kind,
- pos: pos,
- }
-}
-
-func newIDToken(text string, pos Position) *token {
- return &token{
- kind: tokenKindID,
- text: text,
- pos: pos,
- }
-}
-
-func newTerminalPatternToken(text string, pos Position) *token {
- return &token{
- kind: tokenKindTerminalPattern,
- text: text,
- pos: pos,
- }
-}
-
-func newStringLiteralToken(text string, pos Position) *token {
- return &token{
- kind: tokenKindStringLiteral,
- text: text,
- pos: pos,
- }
-}
-
-func newEOFToken() *token {
- return &token{
- kind: tokenKindEOF,
- }
-}
-
-func newInvalidToken(text string, pos Position) *token {
- return &token{
- kind: tokenKindInvalid,
- text: text,
- pos: pos,
- }
-}
-
-type lexer struct {
- d *Lexer
- buf *token
-}
-
-func newLexer(src io.Reader) (*lexer, error) {
- d, err := NewLexer(NewLexSpec(), src)
- if err != nil {
- return nil, err
- }
- return &lexer{
- d: d,
- }, nil
-}
-
-func (l *lexer) next() (*token, error) {
- if l.buf != nil {
- tok := l.buf
- l.buf = nil
- return tok, nil
- }
-
- var newline *token
- for {
- tok, err := l.lexAndSkipWSs()
- if err != nil {
- return nil, err
- }
- if tok.kind == tokenKindNewline {
- newline = tok
- continue
- }
-
- if newline != nil {
- l.buf = tok
- return newline, nil
- }
- return tok, nil
- }
-}
-
-func (l *lexer) lexAndSkipWSs() (*token, error) {
- var tok *Token
- for {
- var err error
- tok, err = l.d.Next()
- if err != nil {
- return nil, err
- }
- if tok.Invalid {
- return newInvalidToken(string(tok.Lexeme), newPosition(tok.Row+1, tok.Col+1)), nil
- }
- if tok.EOF {
- return newEOFToken(), nil
- }
- switch tok.KindID {
- case KindIDWhiteSpace:
- continue
- case KindIDLineComment:
- continue
- }
-
- break
- }
-
- switch tok.KindID {
- case KindIDNewline:
- return newSymbolToken(tokenKindNewline, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDKwFragment:
- return newSymbolToken(tokenKindKWFragment, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDIdentifier:
- if !reIDChar.Match(tok.Lexeme) {
- return nil, &verr.SpecError{
- Cause: synErrIDInvalidChar,
- Detail: string(tok.Lexeme),
- Row: tok.Row + 1,
- Col: tok.Col + 1,
- }
- }
- if strings.HasPrefix(string(tok.Lexeme), "_") || strings.HasSuffix(string(tok.Lexeme), "_") {
- return nil, &verr.SpecError{
- Cause: synErrIDInvalidUnderscorePos,
- Detail: string(tok.Lexeme),
- Row: tok.Row + 1,
- Col: tok.Col + 1,
- }
- }
- if strings.Contains(string(tok.Lexeme), "__") {
- return nil, &verr.SpecError{
- Cause: synErrIDConsecutiveUnderscores,
- Detail: string(tok.Lexeme),
- Row: tok.Row + 1,
- Col: tok.Col + 1,
- }
- }
- if reIDInvalidDigitsPos.Match(tok.Lexeme) {
- return nil, &verr.SpecError{
- Cause: synErrIDInvalidDigitsPos,
- Detail: string(tok.Lexeme),
- Row: tok.Row + 1,
- Col: tok.Col + 1,
- }
- }
- return newIDToken(string(tok.Lexeme), newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDTerminalOpen:
- var b strings.Builder
- for {
- tok, err := l.d.Next()
- if err != nil {
- return nil, err
- }
- if tok.EOF {
- return nil, &verr.SpecError{
- Cause: synErrUnclosedTerminal,
- Row: tok.Row + 1,
- Col: tok.Col + 1,
- }
- }
- switch tok.KindID {
- case KindIDPattern:
- // The escape sequences in a pattern string are interpreted by the lexer, except for the \".
- // We must interpret the \" before passing them to the lexer because they are delimiters for
- // the pattern strings.
- fmt.Fprint(&b, strings.ReplaceAll(string(tok.Lexeme), `\"`, `"`))
- case KindIDEscapeSymbol:
- return nil, &verr.SpecError{
- Cause: synErrIncompletedEscSeq,
- Row: tok.Row + 1,
- Col: tok.Col + 1,
- }
- case KindIDTerminalClose:
- pat := b.String()
- if pat == "" {
- return nil, &verr.SpecError{
- Cause: synErrEmptyPattern,
- Row: tok.Row + 1,
- Col: tok.Col + 1,
- }
- }
- return newTerminalPatternToken(pat, newPosition(tok.Row+1, tok.Col+1)), nil
- }
- }
- case KindIDStringLiteralOpen:
- var b strings.Builder
- for {
- tok, err := l.d.Next()
- if err != nil {
- return nil, err
- }
- if tok.EOF {
- return nil, &verr.SpecError{
- Cause: synErrUnclosedString,
- Row: tok.Row + 1,
- Col: tok.Col + 1,
- }
- }
- switch tok.KindID {
- case KindIDCharSeq:
- fmt.Fprint(&b, string(tok.Lexeme))
- case KindIDStringLiteralClose:
- str := b.String()
- if str == "" {
- return nil, &verr.SpecError{
- Cause: synErrEmptyString,
- Row: tok.Row + 1,
- Col: tok.Col + 1,
- }
- }
- return newStringLiteralToken(str, newPosition(tok.Row+1, tok.Col+1)), nil
- }
- }
- case KindIDColon:
- return newSymbolToken(tokenKindColon, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDOr:
- return newSymbolToken(tokenKindOr, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDSemicolon:
- return newSymbolToken(tokenKindSemicolon, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDLabelMarker:
- return newSymbolToken(tokenKindLabelMarker, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDDirectiveMarker:
- return newSymbolToken(tokenKindDirectiveMarker, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDExpansion:
- return newSymbolToken(tokenKindExpantion, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDOrderedSymbolMarker:
- return newSymbolToken(tokenKindOrderedSymbolMarker, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDLParen:
- return newSymbolToken(tokenKindLParen, newPosition(tok.Row+1, tok.Col+1)), nil
- case KindIDRParen:
- return newSymbolToken(tokenKindRParen, newPosition(tok.Row+1, tok.Col+1)), nil
- default:
- return newInvalidToken(string(tok.Lexeme), newPosition(tok.Row+1, tok.Col+1)), nil
- }
-}
diff --git a/spec/grammar/parser/lexer_test.go b/spec/grammar/parser/lexer_test.go
deleted file mode 100644
index c0beaf9..0000000
--- a/spec/grammar/parser/lexer_test.go
+++ /dev/null
@@ -1,236 +0,0 @@
-package parser
-
-import (
- "strings"
- "testing"
-
- verr "error"
-)
-
-func TestLexer_Run(t *testing.T) {
- idTok := func(text string) *token {
- return newIDToken(text, newPosition(1, 0))
- }
-
- termPatTok := func(text string) *token {
- return newTerminalPatternToken(text, newPosition(1, 0))
- }
-
- strTok := func(text string) *token {
- return newStringLiteralToken(text, newPosition(1, 0))
- }
-
- symTok := func(kind tokenKind) *token {
- return newSymbolToken(kind, newPosition(1, 0))
- }
-
- invalidTok := func(text string) *token {
- return newInvalidToken(text, newPosition(1, 0))
- }
-
- tests := []struct {
- caption string
- src string
- tokens []*token
- err error
- }{
- {
- caption: "the lexer can recognize all kinds of tokens",
- src: `id"terminal"'string':|;@...#$()`,
- tokens: []*token{
- idTok("id"),
- termPatTok("terminal"),
- strTok(`string`),
- symTok(tokenKindColon),
- symTok(tokenKindOr),
- symTok(tokenKindSemicolon),
- symTok(tokenKindLabelMarker),
- symTok(tokenKindExpantion),
- symTok(tokenKindDirectiveMarker),
- symTok(tokenKindOrderedSymbolMarker),
- symTok(tokenKindLParen),
- symTok(tokenKindRParen),
- newEOFToken(),
- },
- },
- {
- caption: "the lexer can recognize keywords",
- src: `fragment`,
- tokens: []*token{
- symTok(tokenKindKWFragment),
- newEOFToken(),
- },
- },
- {
- caption: "the lexer can recognize character sequences and escape sequences in a terminal",
- src: `"abc\"\\"`,
- tokens: []*token{
- termPatTok(`abc"\\`),
- newEOFToken(),
- },
- },
- {
- caption: "backslashes are recognized as they are because escape sequences are not allowed in strings",
- src: `'\\\'`,
- tokens: []*token{
- strTok(`\\\`),
- newEOFToken(),
- },
- },
- {
- caption: "a pattern must include at least one character",
- src: `""`,
- err: synErrEmptyPattern,
- },
- {
- caption: "a string must include at least one character",
- src: `''`,
- err: synErrEmptyString,
- },
- {
- caption: "the lexer can recognize newlines and combine consecutive newlines into one",
- src: "\u000A | \u000D | \u000D\u000A | \u000A\u000A \u000D\u000D \u000D\u000A\u000D\u000A",
- tokens: []*token{
- symTok(tokenKindNewline),
- symTok(tokenKindOr),
- symTok(tokenKindNewline),
- symTok(tokenKindOr),
- symTok(tokenKindNewline),
- symTok(tokenKindOr),
- symTok(tokenKindNewline),
- newEOFToken(),
- },
- },
- {
- caption: "the lexer ignores line comments",
- src: `
-// This is the first comment.
-foo
-// This is the second comment.
-// This is the third comment.
-bar // This is the fourth comment.
-`,
- tokens: []*token{
- symTok(tokenKindNewline),
- idTok("foo"),
- symTok(tokenKindNewline),
- idTok("bar"),
- symTok(tokenKindNewline),
- newEOFToken(),
- },
- },
- {
- caption: "an identifier cannot contain the capital-case letters",
- src: `Abc`,
- err: synErrIDInvalidChar,
- },
- {
- caption: "an identifier cannot contain the capital-case letters",
- src: `Zyx`,
- err: synErrIDInvalidChar,
- },
- {
- caption: "the underscore cannot be placed at the beginning of an identifier",
- src: `_abc`,
- err: synErrIDInvalidUnderscorePos,
- },
- {
- caption: "the underscore cannot be placed at the end of an identifier",
- src: `abc_`,
- err: synErrIDInvalidUnderscorePos,
- },
- {
- caption: "the underscore cannot be placed consecutively",
- src: `a__b`,
- err: synErrIDConsecutiveUnderscores,
- },
- {
- caption: "the digits cannot be placed at the biginning of an identifier",
- src: `0abc`,
- err: synErrIDInvalidDigitsPos,
- },
- {
- caption: "the digits cannot be placed at the biginning of an identifier",
- src: `9abc`,
- err: synErrIDInvalidDigitsPos,
- },
- {
- caption: "an unclosed terminal is not a valid token",
- src: `"abc`,
- err: synErrUnclosedTerminal,
- },
- {
- caption: "an incompleted escape sequence in a pattern is not a valid token",
- src: `"\`,
- err: synErrIncompletedEscSeq,
- },
- {
- caption: "an unclosed string is not a valid token",
- src: `'abc`,
- err: synErrUnclosedString,
- },
- {
- caption: "the lexer can recognize valid tokens following an invalid token",
- src: `abc!!!def`,
- tokens: []*token{
- idTok("abc"),
- invalidTok("!!!"),
- idTok("def"),
- newEOFToken(),
- },
- },
- {
- caption: "the lexer skips white spaces",
- // \u0009: HT
- // \u0020: SP
- src: "a\u0009b\u0020c",
- tokens: []*token{
- idTok("a"),
- idTok("b"),
- idTok("c"),
- newEOFToken(),
- },
- },
- }
- for _, tt := range tests {
- t.Run(tt.caption, func(t *testing.T) {
- l, err := newLexer(strings.NewReader(tt.src))
- if err != nil {
- t.Fatal(err)
- }
- n := 0
- for {
- var tok *token
- tok, err = l.next()
- if err != nil {
- break
- }
- testToken(t, tok, tt.tokens[n])
- n++
- if tok.kind == tokenKindEOF {
- break
- }
- }
- if tt.err != nil {
- synErr, ok := err.(*verr.SpecError)
- if !ok {
- t.Fatalf("unexpected error; want: %v, got: %v", tt.err, err)
- }
- if tt.err != synErr.Cause {
- t.Fatalf("unexpected error; want: %v, got: %v", tt.err, synErr.Cause)
- }
- } else {
- if err != nil {
- t.Fatalf("unexpected error; want: %v, got: %v", tt.err, err)
- }
- }
- })
- }
-}
-
-func testToken(t *testing.T, tok, expected *token) {
- t.Helper()
- if tok.kind != expected.kind || tok.text != expected.text {
- t.Fatalf("unexpected token; want: %+v, got: %+v", expected, tok)
- }
-}
diff --git a/spec/grammar/parser/lexspec.json b/spec/grammar/parser/lexspec.json
deleted file mode 100644
index caf1f0e..0000000
--- a/spec/grammar/parser/lexspec.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
- "name": "vartan",
- "entries": [
- {
- "fragment": true,
- "kind": "lf",
- "pattern": "\\u{000A}"
- },
- {
- "fragment": true,
- "kind": "cr",
- "pattern": "\\u{000D}"
- },
- {
- "fragment": true,
- "kind": "ht",
- "pattern": "\\u{0009}"
- },
- {
- "fragment": true,
- "kind": "sp",
- "pattern": "\\u{0020}"
- },
- {
- "fragment": true,
- "kind": "newline",
- "pattern": "\\f{lf}|\\f{cr}|\\f{cr}\\f{lf}"
- },
- {
- "kind": "white_space",
- "pattern": "(\\f{ht}|\\f{sp})+"
- },
- {
- "kind": "newline",
- "pattern": "\\f{newline}"
- },
- {
- "kind": "line_comment",
- "pattern": "//[^\\u{000A}\\u{000D}]*"
- },
- {
- "kind": "kw_fragment",
- "pattern": "fragment"
- },
- {
- "kind": "identifier",
- "pattern": "[0-9A-Za-z_]+"
- },
- {
- "kind": "terminal_open",
- "pattern": "\"",
- "push": "terminal"
- },
- {
- "modes": ["terminal"],
- "kind": "pattern",
- "pattern": "([^\"\\\\]|\\\\.)+"
- },
- {
- "modes": ["terminal"],
- "kind": "escape_symbol",
- "pattern": "\\\\"
- },
- {
- "modes": ["terminal"],
- "kind": "terminal_close",
- "pattern": "\"",
- "pop": true
- },
- {
- "kind": "string_literal_open",
- "pattern": "'",
- "push": "string_literal"
- },
- {
- "modes": ["string_literal"],
- "kind": "char_seq",
- "pattern": "[^']+"
- },
- {
- "modes": ["string_literal"],
- "kind": "string_literal_close",
- "pattern": "'",
- "pop": true
- },
- {
- "kind": "colon",
- "pattern": ":"
- },
- {
- "kind": "or",
- "pattern": "\\|"
- },
- {
- "kind": "semicolon",
- "pattern": ";"
- },
- {
- "kind": "label_marker",
- "pattern": "@"
- },
- {
- "kind": "expansion",
- "pattern": "\\.\\.\\."
- },
- {
- "kind": "directive_marker",
- "pattern": "#"
- },
- {
- "kind": "ordered_symbol_marker",
- "pattern": "$"
- },
- {
- "kind": "l_paren",
- "pattern": "\\("
- },
- {
- "kind": "r_paren",
- "pattern": "\\)"
- }
- ]
-}
diff --git a/spec/grammar/parser/parser.go b/spec/grammar/parser/parser.go
deleted file mode 100644
index 0ef29dd..0000000
--- a/spec/grammar/parser/parser.go
+++ /dev/null
@@ -1,582 +0,0 @@
-package parser
-
-import (
- "fmt"
- "io"
-
- verr "error"
- spec "spec/grammar"
-)
-
-type RootNode struct {
- Directives []*DirectiveNode
- Productions []*ProductionNode
- LexProductions []*ProductionNode
- Fragments []*FragmentNode
-}
-
-type ProductionNode struct {
- Directives []*DirectiveNode
- LHS string
- RHS []*AlternativeNode
- Pos Position
-}
-
-func (n *ProductionNode) isLexical() bool {
- if len(n.RHS) == 1 && len(n.RHS[0].Elements) == 1 && n.RHS[0].Elements[0].Pattern != "" {
- return true
- }
- return false
-}
-
-type AlternativeNode struct {
- Elements []*ElementNode
- Directives []*DirectiveNode
- Pos Position
-}
-
-type ElementNode struct {
- ID string
- Pattern string
- Label *LabelNode
- Literally bool
- Pos Position
-}
-
-type LabelNode struct {
- Name string
- Pos Position
-}
-
-type DirectiveNode struct {
- Name string
- Parameters []*ParameterNode
- Pos Position
-}
-
-type ParameterNode struct {
- ID string
- Pattern string
- String string
- OrderedSymbol string
- Group []*DirectiveNode
- Expansion bool
- Pos Position
-}
-
-type FragmentNode struct {
- LHS string
- RHS string
- Pos Position
-}
-
-func raiseSyntaxError(row int, synErr *SyntaxError) {
- panic(&verr.SpecError{
- Cause: synErr,
- Row: row,
- })
-}
-
-func raiseSyntaxErrorWithDetail(row int, synErr *SyntaxError, detail string) {
- panic(&verr.SpecError{
- Cause: synErr,
- Detail: detail,
- Row: row,
- })
-}
-
-func Parse(src io.Reader) (*RootNode, error) {
- p, err := newParser(src)
- if err != nil {
- return nil, err
- }
-
- return p.parse()
-}
-
-type parser struct {
- lex *lexer
- peekedTok *token
- lastTok *token
- errs verr.SpecErrors
-
- // A token position that the parser read at last.
- // It is used as additional information in error messages.
- pos Position
-}
-
-func newParser(src io.Reader) (*parser, error) {
- lex, err := newLexer(src)
- if err != nil {
- return nil, err
- }
- return &parser{
- lex: lex,
- }, nil
-}
-
-func (p *parser) parse() (root *RootNode, retErr error) {
- root = p.parseRoot()
- if len(p.errs) > 0 {
- return nil, p.errs
- }
-
- return root, nil
-}
-
-func (p *parser) parseRoot() *RootNode {
- defer func() {
- err := recover()
- if err != nil {
- specErr, ok := err.(*verr.SpecError)
- if !ok {
- panic(fmt.Errorf("an unexpected error occurred: %v", err))
- }
- p.errs = append(p.errs, specErr)
- }
- }()
-
- var dirs []*DirectiveNode
- var prods []*ProductionNode
- var lexProds []*ProductionNode
- var fragments []*FragmentNode
- for {
- dir := p.parseTopLevelDirective()
- if dir != nil {
- dirs = append(dirs, dir)
- continue
- }
-
- fragment := p.parseFragment()
- if fragment != nil {
- fragments = append(fragments, fragment)
- continue
- }
-
- prod := p.parseProduction()
- if prod != nil {
- if prod.isLexical() {
- lexProds = append(lexProds, prod)
- } else {
- prods = append(prods, prod)
- }
- continue
- }
-
- if p.consume(tokenKindEOF) {
- break
- }
- }
-
- return &RootNode{
- Directives: dirs,
- Productions: prods,
- LexProductions: lexProds,
- Fragments: fragments,
- }
-}
-
-func (p *parser) parseTopLevelDirective() *DirectiveNode {
- defer func() {
- err := recover()
- if err == nil {
- return
- }
-
- specErr, ok := err.(*verr.SpecError)
- if !ok {
- panic(err)
- }
-
- p.errs = append(p.errs, specErr)
- p.skipOverTo(tokenKindSemicolon)
- }()
-
- dir := p.parseDirective()
- if dir == nil {
- return nil
- }
-
- p.consume(tokenKindNewline)
-
- if !p.consume(tokenKindSemicolon) {
- raiseSyntaxError(p.pos.Row, synErrTopLevelDirNoSemicolon)
- }
-
- return dir
-}
-
-func (p *parser) parseFragment() *FragmentNode {
- defer func() {
- err := recover()
- if err == nil {
- return
- }
-
- specErr, ok := err.(*verr.SpecError)
- if !ok {
- panic(err)
- }
-
- p.errs = append(p.errs, specErr)
- p.skipOverTo(tokenKindSemicolon)
- }()
-
- p.consume(tokenKindNewline)
-
- if !p.consume(tokenKindKWFragment) {
- return nil
- }
-
- p.consume(tokenKindNewline)
-
- if !p.consume(tokenKindID) {
- raiseSyntaxError(p.pos.Row, synErrNoProductionName)
- }
- lhs := p.lastTok.text
- lhsPos := p.lastTok.pos
-
- p.consume(tokenKindNewline)
-
- if !p.consume(tokenKindColon) {
- raiseSyntaxError(p.pos.Row, synErrNoColon)
- }
-
- var rhs string
- switch {
- case p.consume(tokenKindTerminalPattern):
- rhs = p.lastTok.text
- case p.consume(tokenKindStringLiteral):
- rhs = spec.EscapePattern(p.lastTok.text)
- default:
- raiseSyntaxError(p.pos.Row, synErrFragmentNoPattern)
- }
-
- p.consume(tokenKindNewline)
-
- if !p.consume(tokenKindSemicolon) {
- raiseSyntaxError(p.pos.Row, synErrNoSemicolon)
- }
-
- if !p.consume(tokenKindNewline) {
- if !p.consume(tokenKindEOF) {
- raiseSyntaxError(p.pos.Row, synErrSemicolonNoNewline)
- }
- }
-
- return &FragmentNode{
- LHS: lhs,
- RHS: rhs,
- Pos: lhsPos,
- }
-}
-
-func (p *parser) parseProduction() *ProductionNode {
- defer func() {
- err := recover()
- if err == nil {
- return
- }
-
- specErr, ok := err.(*verr.SpecError)
- if !ok {
- panic(err)
- }
-
- p.errs = append(p.errs, specErr)
- p.skipOverTo(tokenKindSemicolon)
- }()
-
- p.consume(tokenKindNewline)
-
- if p.consume(tokenKindEOF) {
- return nil
- }
-
- if !p.consume(tokenKindID) {
- raiseSyntaxError(p.pos.Row, synErrNoProductionName)
- }
- lhs := p.lastTok.text
- lhsPos := p.lastTok.pos
-
- var dirs []*DirectiveNode
- for {
- dir := p.parseDirective()
- if dir == nil {
- break
- }
- dirs = append(dirs, dir)
- }
-
- p.consume(tokenKindNewline)
-
- if !p.consume(tokenKindColon) {
- raiseSyntaxError(p.pos.Row, synErrNoColon)
- }
-
- alt := p.parseAlternative()
- rhs := []*AlternativeNode{alt}
- for {
- p.consume(tokenKindNewline)
-
- if !p.consume(tokenKindOr) {
- break
- }
- alt := p.parseAlternative()
- rhs = append(rhs, alt)
- }
-
- p.consume(tokenKindNewline)
-
- if !p.consume(tokenKindSemicolon) {
- raiseSyntaxError(p.pos.Row, synErrNoSemicolon)
- }
-
- if !p.consume(tokenKindNewline) {
- if !p.consume(tokenKindEOF) {
- raiseSyntaxError(p.pos.Row, synErrSemicolonNoNewline)
- }
- }
-
- prod := &ProductionNode{
- Directives: dirs,
- LHS: lhs,
- RHS: rhs,
- Pos: lhsPos,
- }
-
- // Vartan's driver must provide a user with the names of expected tokens when a syntax error occurs.
- // However, if a pattern appears directly in an alternative, Vartan's compiler cannot assign an appropriate
- // name to the pattern. Therefore, this code prohibits alternatives from containing patterns.
- if !prod.isLexical() {
- for _, alt := range prod.RHS {
- for _, elem := range alt.Elements {
- if elem.Pattern != "" {
- raiseSyntaxError(elem.Pos.Row, synErrPatternInAlt)
- }
- }
- }
- }
-
- return prod
-}
-
-func (p *parser) parseAlternative() *AlternativeNode {
- elems := []*ElementNode{}
- for {
- elem := p.parseElement()
- if elem == nil {
- break
- }
- elems = append(elems, elem)
- }
-
- // When a length of an alternative is zero, we cannot set a position.
- var firstElemPos Position
- if len(elems) > 0 {
- firstElemPos = elems[0].Pos
- }
-
- var dirs []*DirectiveNode
- for {
- dir := p.parseDirective()
- if dir == nil {
- break
- }
- dirs = append(dirs, dir)
- }
-
- return &AlternativeNode{
- Elements: elems,
- Directives: dirs,
- Pos: firstElemPos,
- }
-}
-
-func (p *parser) parseElement() *ElementNode {
- var elem *ElementNode
- switch {
- case p.consume(tokenKindID):
- elem = &ElementNode{
- ID: p.lastTok.text,
- Pos: p.lastTok.pos,
- }
- case p.consume(tokenKindTerminalPattern):
- elem = &ElementNode{
- Pattern: p.lastTok.text,
- Pos: p.lastTok.pos,
- }
- case p.consume(tokenKindStringLiteral):
- elem = &ElementNode{
- Pattern: p.lastTok.text,
- Literally: true,
- Pos: p.lastTok.pos,
- }
- default:
- if p.consume(tokenKindLabelMarker) {
- raiseSyntaxError(p.pos.Row, synErrLabelWithNoSymbol)
- }
- return nil
- }
- if p.consume(tokenKindLabelMarker) {
- if !p.consume(tokenKindID) {
- raiseSyntaxError(p.pos.Row, synErrNoLabel)
- }
- elem.Label = &LabelNode{
- Name: p.lastTok.text,
- Pos: p.lastTok.pos,
- }
- }
- return elem
-}
-
-func (p *parser) parseDirective() *DirectiveNode {
- p.consume(tokenKindNewline)
-
- if !p.consume(tokenKindDirectiveMarker) {
- return nil
- }
- dirPos := p.lastTok.pos
-
- if !p.consume(tokenKindID) {
- raiseSyntaxError(p.pos.Row, synErrNoDirectiveName)
- }
- name := p.lastTok.text
-
- var params []*ParameterNode
- for {
- param := p.parseParameter()
- if param == nil {
- break
- }
- params = append(params, param)
- }
-
- return &DirectiveNode{
- Name: name,
- Parameters: params,
- Pos: dirPos,
- }
-}
-
-func (p *parser) parseParameter() *ParameterNode {
- var param *ParameterNode
- switch {
- case p.consume(tokenKindID):
- param = &ParameterNode{
- ID: p.lastTok.text,
- Pos: p.lastTok.pos,
- }
- case p.consume(tokenKindTerminalPattern):
- param = &ParameterNode{
- Pattern: p.lastTok.text,
- Pos: p.lastTok.pos,
- }
- case p.consume(tokenKindStringLiteral):
- param = &ParameterNode{
- String: p.lastTok.text,
- Pos: p.lastTok.pos,
- }
- case p.consume(tokenKindOrderedSymbolMarker):
- if !p.consume(tokenKindID) {
- raiseSyntaxError(p.pos.Row, synErrNoOrderedSymbolName)
- }
- param = &ParameterNode{
- OrderedSymbol: p.lastTok.text,
- Pos: p.lastTok.pos,
- }
- case p.consume(tokenKindLParen):
- pos := p.lastTok.pos
- var g []*DirectiveNode
- for {
- dir := p.parseDirective()
- if dir == nil {
- break
- }
- g = append(g, dir)
- }
- if !p.consume(tokenKindRParen) {
- raiseSyntaxError(p.pos.Row, synErrUnclosedDirGroup)
- }
- if len(g) == 0 {
- // Set an empty slice representing an empty directive group to distinguish between the following two cases.
- //
- // - #prec (); // vartan allows this case.
- // - #prec; // This case will raise an error.
- g = []*DirectiveNode{}
- }
- param = &ParameterNode{
- Group: g,
- Pos: pos,
- }
- }
- if p.consume(tokenKindExpantion) {
- switch {
- case param == nil:
- raiseSyntaxError(p.pos.Row, synErrStrayExpOp)
- case param.ID == "":
- raiseSyntaxError(p.pos.Row, synErrInvalidExpOperand)
- }
- param.Expansion = true
- }
- return param
-}
-
-func (p *parser) consume(expected tokenKind) bool {
- var tok *token
- var err error
- if p.peekedTok != nil {
- tok = p.peekedTok
- p.peekedTok = nil
- } else {
- tok, err = p.lex.next()
- if err != nil {
- panic(err)
- }
- }
- p.pos = tok.pos
- if tok.kind == tokenKindInvalid {
- raiseSyntaxErrorWithDetail(p.pos.Row, synErrInvalidToken, tok.text)
- }
- if tok.kind == expected {
- p.lastTok = tok
- return true
- }
- p.peekedTok = tok
-
- return false
-}
-
-func (p *parser) skip() {
- var tok *token
- var err error
- for {
- if p.peekedTok != nil {
- tok = p.peekedTok
- p.peekedTok = nil
- } else {
- tok, err = p.lex.next()
- if err != nil {
- p.errs = append(p.errs, &verr.SpecError{
- Cause: err,
- Row: p.pos.Row,
- })
- continue
- }
- }
-
- break
- }
-
- p.lastTok = tok
- p.pos = tok.pos
-}
-
-func (p *parser) skipOverTo(kind tokenKind) {
- for {
- if p.consume(kind) || p.consume(tokenKindEOF) {
- return
- }
- p.skip()
- }
-}
diff --git a/spec/grammar/parser/parser_test.go b/spec/grammar/parser/parser_test.go
deleted file mode 100644
index 77863e8..0000000
--- a/spec/grammar/parser/parser_test.go
+++ /dev/null
@@ -1,1211 +0,0 @@
-package parser
-
-import (
- "strings"
- "testing"
-
- verr "error"
-)
-
-func TestParse(t *testing.T) {
- name := func(param *ParameterNode) *DirectiveNode {
- return &DirectiveNode{
- Name: "name",
- Parameters: []*ParameterNode{param},
- }
- }
- prec := func(param *ParameterNode) *DirectiveNode {
- return &DirectiveNode{
- Name: "prec",
- Parameters: []*ParameterNode{param},
- }
- }
- leftAssoc := func(params ...*ParameterNode) *DirectiveNode {
- return &DirectiveNode{
- Name: "left",
- Parameters: params,
- }
- }
- rightAssoc := func(params ...*ParameterNode) *DirectiveNode {
- return &DirectiveNode{
- Name: "right",
- Parameters: params,
- }
- }
- assign := func(params ...*ParameterNode) *DirectiveNode {
- return &DirectiveNode{
- Name: "assign",
- Parameters: params,
- }
- }
- prod := func(lhs string, alts ...*AlternativeNode) *ProductionNode {
- return &ProductionNode{
- LHS: lhs,
- RHS: alts,
- }
- }
- withProdPos := func(prod *ProductionNode, pos Position) *ProductionNode {
- prod.Pos = pos
- return prod
- }
- withProdDir := func(prod *ProductionNode, dirs ...*DirectiveNode) *ProductionNode {
- prod.Directives = dirs
- return prod
- }
- alt := func(elems ...*ElementNode) *AlternativeNode {
- return &AlternativeNode{
- Elements: elems,
- }
- }
- withAltPos := func(alt *AlternativeNode, pos Position) *AlternativeNode {
- alt.Pos = pos
- return alt
- }
- withAltDir := func(alt *AlternativeNode, dirs ...*DirectiveNode) *AlternativeNode {
- alt.Directives = dirs
- return alt
- }
- dir := func(name string, params ...*ParameterNode) *DirectiveNode {
- return &DirectiveNode{
- Name: name,
- Parameters: params,
- }
- }
- withDirPos := func(dir *DirectiveNode, pos Position) *DirectiveNode {
- dir.Pos = pos
- return dir
- }
- idParam := func(id string) *ParameterNode {
- return &ParameterNode{
- ID: id,
- }
- }
- ordSymParam := func(id string) *ParameterNode {
- return &ParameterNode{
- OrderedSymbol: id,
- }
- }
- exp := func(param *ParameterNode) *ParameterNode {
- param.Expansion = true
- return param
- }
- group := func(dirs ...*DirectiveNode) *ParameterNode {
- return &ParameterNode{
- Group: dirs,
- }
- }
- withParamPos := func(param *ParameterNode, pos Position) *ParameterNode {
- param.Pos = pos
- return param
- }
- id := func(id string) *ElementNode {
- return &ElementNode{
- ID: id,
- }
- }
- pat := func(p string) *ElementNode {
- return &ElementNode{
- Pattern: p,
- }
- }
- label := func(name string) *LabelNode {
- return &LabelNode{
- Name: name,
- }
- }
- withLabelPos := func(label *LabelNode, pos Position) *LabelNode {
- label.Pos = pos
- return label
- }
- withLabel := func(elem *ElementNode, label *LabelNode) *ElementNode {
- elem.Label = label
- return elem
- }
- withElemPos := func(elem *ElementNode, pos Position) *ElementNode {
- elem.Pos = pos
- return elem
- }
- frag := func(lhs string, rhs string) *FragmentNode {
- return &FragmentNode{
- LHS: lhs,
- RHS: rhs,
- }
- }
- withFragmentPos := func(frag *FragmentNode, pos Position) *FragmentNode {
- frag.Pos = pos
- return frag
- }
- newPos := func(row int) Position {
- return Position{
- Row: row,
- Col: 0,
- }
- }
-
- tests := []struct {
- caption string
- src string
- checkPosition bool
- ast *RootNode
- synErr *SyntaxError
- }{
- {
- caption: "a grammar can contain top-level directives",
- src: `
-#name test;
-
-#prec (
- #left a b $x1
- #right c d $x2
- #assign e f $x3
-);
-`,
- ast: &RootNode{
- Directives: []*DirectiveNode{
- withDirPos(
- name(
- withParamPos(
- idParam("test"),
- newPos(2),
- ),
- ),
- newPos(2),
- ),
- withDirPos(
- prec(
- withParamPos(
- group(
- withDirPos(
- leftAssoc(
- withParamPos(
- idParam("a"),
- newPos(5),
- ),
- withParamPos(
- idParam("b"),
- newPos(5),
- ),
- withParamPos(
- ordSymParam("x1"),
- newPos(5),
- ),
- ),
- newPos(5),
- ),
- withDirPos(
- rightAssoc(
- withParamPos(
- idParam("c"),
- newPos(6),
- ),
- withParamPos(
- idParam("d"),
- newPos(6),
- ),
- withParamPos(
- ordSymParam("x2"),
- newPos(6),
- ),
- ),
- newPos(6),
- ),
- withDirPos(
- assign(
- withParamPos(
- idParam("e"),
- newPos(7),
- ),
- withParamPos(
- idParam("f"),
- newPos(7),
- ),
- withParamPos(
- ordSymParam("x3"),
- newPos(7),
- ),
- ),
- newPos(7),
- ),
- ),
- newPos(4),
- ),
- ),
- newPos(4),
- ),
- },
- },
- },
- {
- caption: "a top-level directive must be followed by ';'",
- src: `
-#name test
-`,
- synErr: synErrTopLevelDirNoSemicolon,
- },
- {
- caption: "a directive group must be closed by ')'",
- src: `
-#prec (
- #left a b
-;
-`,
- synErr: synErrUnclosedDirGroup,
- },
- {
- caption: "an ordered symbol marker '$' must be followed by and ID",
- src: `
-#prec (
- #assign $
-);
-`,
- synErr: synErrNoOrderedSymbolName,
- },
- {
- caption: "single production is a valid grammar",
- src: `a: "a";`,
- ast: &RootNode{
- LexProductions: []*ProductionNode{
- prod("a", alt(pat("a"))),
- },
- },
- },
- {
- caption: "multiple productions are a valid grammar",
- src: `
-e
- : e add t
- | e sub t
- | t
- ;
-t
- : t mul f
- | t div f
- | f
- ;
-f
- : l_paren e r_paren
- | id
- ;
-
-add
- : '+';
-sub
- : '-';
-mul
- : '*';
-div
- : '/';
-l_paren
- : '(';
-r_paren
- : ')';
-id
- : "[A-Za-z_][0-9A-Za-z_]*";
-`,
- ast: &RootNode{
- Productions: []*ProductionNode{
- prod("e",
- alt(id("e"), id("add"), id("t")),
- alt(id("e"), id("sub"), id("t")),
- alt(id("t")),
- ),
- prod("t",
- alt(id("t"), id("mul"), id("f")),
- alt(id("t"), id("div"), id("f")),
- alt(id("f")),
- ),
- prod("f",
- alt(id("l_paren"), id("e"), id("r_paren")),
- alt(id("id")),
- ),
- },
- LexProductions: []*ProductionNode{
- prod("add", alt(pat(`+`))),
- prod("sub", alt(pat(`-`))),
- prod("mul", alt(pat(`*`))),
- prod("div", alt(pat(`/`))),
- prod("l_paren", alt(pat(`(`))),
- prod("r_paren", alt(pat(`)`))),
- prod("id", alt(pat(`[A-Za-z_][0-9A-Za-z_]*`))),
- },
- },
- },
- {
- caption: "productions can contain the empty alternative",
- src: `
-a
- : foo
- |
- ;
-b
- :
- | bar
- ;
-c
- :
- ;
-
-foo
- : 'foo';
-bar
- : 'bar';
-`,
- ast: &RootNode{
- Productions: []*ProductionNode{
- prod("a",
- alt(id("foo")),
- alt(),
- ),
- prod("b",
- alt(),
- alt(id("bar")),
- ),
- prod("c",
- alt(),
- ),
- },
- LexProductions: []*ProductionNode{
- prod("foo", alt(pat(`foo`))),
- prod("bar", alt(pat(`bar`))),
- },
- },
- },
- {
- caption: "a production cannot contain an ordered symbol",
- src: `
-a: $x;
-`,
- synErr: synErrNoSemicolon,
- },
- {
- caption: "an alternative cannot contain a pattern directly",
- src: `
-s
- : "foo" bar
- ;
-
-bar
- : "bar";
-`,
- synErr: synErrPatternInAlt,
- },
- {
- caption: "an alternative cannot contain a string directly",
- src: `
-s
- : 'foo' bar
- ;
-bar
- : "bar";
-`,
- synErr: synErrPatternInAlt,
- },
- {
- caption: "a terminal symbol can be defined using a string literal",
- src: `
-foo
- : 'foo';
-`,
- ast: &RootNode{
- LexProductions: []*ProductionNode{
- prod("foo",
- alt(pat(`foo`)),
- ),
- },
- },
- },
- {
- caption: "a terminal symbol can be defined using a pattern",
- src: `
-foo
- : "foo";
-`,
- ast: &RootNode{
- LexProductions: []*ProductionNode{
- prod("foo",
- alt(pat(`foo`)),
- ),
- },
- },
- },
- {
- caption: "`fragment` is a reserved word",
- src: `fragment: 'fragment';`,
- synErr: synErrNoProductionName,
- },
- {
- caption: "when a source contains an unknown token, the parser raises a syntax error",
- src: `a: !;`,
- synErr: synErrInvalidToken,
- },
- {
- caption: "a production must have its name as the first element",
- src: `: "a";`,
- synErr: synErrNoProductionName,
- },
- {
- caption: "':' must precede an alternative",
- src: `a "a";`,
- synErr: synErrNoColon,
- },
- {
- caption: "';' must follow a production",
- src: `a: "a"`,
- synErr: synErrNoSemicolon,
- },
- {
- caption: "';' can only appear at the end of a production",
- src: `;`,
- synErr: synErrNoProductionName,
- },
- {
- caption: "a grammar can contain fragments",
- src: `
-s
- : tagline
- ;
-tagline: "\f{words} IS OUT THERE.";
-fragment words: "[A-Za-z\u{0020}]+";
-`,
- ast: &RootNode{
- Productions: []*ProductionNode{
- prod("s",
- alt(id("tagline")),
- ),
- },
- LexProductions: []*ProductionNode{
- prod("tagline",
- alt(pat(`\f{words} IS OUT THERE.`)),
- ),
- },
- Fragments: []*FragmentNode{
- frag("words", `[A-Za-z\u{0020}]+`),
- },
- },
- },
- {
- caption: "the lexer treats consecutive lines as a single token but can count lines correctly",
- src: `// This line precedes line comments and blank lines.
-// This is a line comment.
-
-
-s
- : foo
- ;
-
-
-// This line is sandwiched between blank lines.
-
-
-foo: 'foo';
-`,
- checkPosition: true,
- ast: &RootNode{
- Productions: []*ProductionNode{
- withProdPos(
- prod("s",
- withAltPos(
- alt(
- withElemPos(
- id("foo"),
- newPos(6),
- ),
- ),
- newPos(6),
- ),
- ),
- newPos(5),
- ),
- },
- LexProductions: []*ProductionNode{
- withProdPos(
- prod("foo",
- withAltPos(
- alt(
- withElemPos(
- pat(`foo`),
- newPos(13),
- ),
- ),
- newPos(13),
- ),
- ),
- newPos(13),
- ),
- },
- },
- },
- {
- caption: "a grammar can contain production directives and alternative directives",
- src: `
-mode_tran_seq
- : mode_tran_seq mode_tran
- | mode_tran
- ;
-mode_tran
- : push_m1
- | push_m2
- | pop_m1
- | pop_m2
- ;
-
-push_m1 #push m1
- : "->";
-push_m2 #mode m1 #push m2
- : "-->";
-pop_m1 #mode m1 #pop
- : "<-";
-pop_m2 #mode m2 #pop
- : "<--";
-whitespace #mode default m1 m2 #skip
- : "\u{0020}+";
-`,
- ast: &RootNode{
- Productions: []*ProductionNode{
- prod("mode_tran_seq",
- alt(id("mode_tran_seq"), id("mode_tran")),
- alt(id("mode_tran")),
- ),
- prod("mode_tran",
- alt(id("push_m1")),
- alt(id("push_m2")),
- alt(id("pop_m1")),
- alt(id("pop_m2")),
- ),
- },
- LexProductions: []*ProductionNode{
- withProdDir(
- prod("push_m1",
- alt(pat(`->`)),
- ),
- dir("push", idParam("m1")),
- ),
- withProdDir(
- prod("push_m2",
- alt(pat(`-->`)),
- ),
- dir("mode", idParam("m1")),
- dir("push", idParam("m2")),
- ),
- withProdDir(
- prod("pop_m1",
- alt(pat(`<-`)),
- ),
- dir("mode", idParam("m1")),
- dir("pop"),
- ),
- withProdDir(
- prod("pop_m2",
- alt(pat(`<--`)),
- ),
- dir("mode", idParam("m2")),
- dir("pop"),
- ),
- withProdDir(
- prod("whitespace",
- alt(pat(`\u{0020}+`)),
- ),
- dir("mode", idParam("default"), idParam("m1"), idParam("m2")),
- dir("skip"),
- ),
- },
- },
- },
- {
- caption: "an alternative of a production can have multiple alternative directives",
- src: `
-s
- : foo bar #prec baz #ast foo bar
- ;
-`,
- ast: &RootNode{
- Productions: []*ProductionNode{
- prod("s",
- withAltDir(
- alt(id("foo"), id("bar")),
- dir("prec", idParam("baz")),
- dir("ast", idParam("foo"), idParam("bar")),
- ),
- ),
- },
- },
- },
- {
- caption: "a lexical production can have multiple production directives",
- src: `
-foo #mode a #push b
- : 'foo';
-`,
- ast: &RootNode{
- LexProductions: []*ProductionNode{
- withProdDir(
- prod("foo",
- alt(pat("foo")),
- ),
- dir("mode", idParam("a")),
- dir("push", idParam("b")),
- ),
- },
- },
- },
- {
- caption: "a production must be followed by a newline",
- src: `
-s: foo; foo: "foo";
-`,
- synErr: synErrSemicolonNoNewline,
- },
- {
- caption: "a grammar can contain 'ast' directives and expansion operator",
- src: `
-s
- : foo bar_list #ast foo bar_list
- ;
-bar_list
- : bar_list bar #ast bar_list... bar
- | bar #ast bar
- ;
-foo: "foo";
-bar: "bar";
-`,
- ast: &RootNode{
- Productions: []*ProductionNode{
- prod("s",
- withAltDir(
- alt(id("foo"), id("bar_list")),
- dir("ast", idParam("foo"), idParam("bar_list")),
- ),
- ),
- prod("bar_list",
- withAltDir(
- alt(id("bar_list"), id("bar")),
- dir("ast", exp(idParam("bar_list")), idParam("bar")),
- ),
- withAltDir(
- alt(id("bar")),
- dir("ast", idParam("bar")),
- ),
- ),
- },
- LexProductions: []*ProductionNode{
- prod("foo",
- alt(pat("foo")),
- ),
- prod("bar",
- alt(pat("bar")),
- ),
- },
- },
- },
- {
- caption: "an expansion operator must be preceded by an identifier",
- src: `
-s
- : foo #ast ...
- ;
-`,
- synErr: synErrStrayExpOp,
- },
- {
- caption: "an expansion operator must be preceded by an identifier",
- src: `
-a
- : foo #ast ... foo
- ;
-`,
- synErr: synErrStrayExpOp,
- },
- {
- caption: "an expansion operator cannot be applied to a pattern",
- src: `
-a
- : "foo" #ast "foo"...
- ;
-`,
- synErr: synErrInvalidExpOperand,
- },
- {
- caption: "an expansion operator cannot be applied to a string",
- src: `
-a
- : 'foo' #ast 'foo'...
- ;
-`,
- synErr: synErrInvalidExpOperand,
- },
- {
- caption: "an expansion operator cannot be applied to an ordered symbol",
- src: `
-a
- : foo #ast $foo...
- ;
-`,
- synErr: synErrInvalidExpOperand,
- },
- {
- caption: "an expansion operator cannot be applied to a directive group",
- src: `
-a
- : foo #ast ()...
- ;
-`,
- synErr: synErrInvalidExpOperand,
- },
- {
- caption: "an AST has node positions",
- src: `
-exp
- : exp add id #ast exp id
- | id
- ;
-
-whitespace #skip
- : "\u{0020}+";
-add
- : '+';
-id
- : "\f{letter}(\f{letter}|\f{number})*";
-fragment letter
- : "[A-Za-z_]";
-fragment number
- : "[0-9]";
-`,
- checkPosition: true,
- ast: &RootNode{
- Productions: []*ProductionNode{
- withProdPos(
- prod("exp",
- withAltPos(
- withAltDir(
- alt(
- withElemPos(id("exp"), newPos(3)),
- withElemPos(id("add"), newPos(3)),
- withElemPos(id("id"), newPos(3)),
- ),
- withDirPos(
- dir("ast",
- withParamPos(idParam("exp"), newPos(3)),
- withParamPos(idParam("id"), newPos(3)),
- ),
- newPos(3),
- ),
- ),
- newPos(3),
- ),
- withAltPos(
- alt(
- withElemPos(id("id"), newPos(4)),
- ),
- newPos(4),
- ),
- ),
- newPos(2),
- ),
- },
- LexProductions: []*ProductionNode{
- withProdPos(
- withProdDir(
- prod("whitespace",
- withAltPos(
- alt(
- withElemPos(
- pat(`\u{0020}+`),
- newPos(8),
- ),
- ),
- newPos(8),
- ),
- ),
- withDirPos(
- dir("skip"),
- newPos(7),
- ),
- ),
- newPos(7),
- ),
- withProdPos(
- prod("add",
- withAltPos(
- alt(
- withElemPos(
- pat(`+`),
- newPos(10),
- ),
- ),
- newPos(10),
- ),
- ),
- newPos(9),
- ),
- withProdPos(
- prod("id",
- withAltPos(
- alt(
- withElemPos(
- pat(`\f{letter}(\f{letter}|\f{number})*`),
- newPos(12),
- ),
- ),
- newPos(12),
- ),
- ),
- newPos(11),
- ),
- },
- Fragments: []*FragmentNode{
- withFragmentPos(
- frag("letter", "[A-Za-z_]"),
- newPos(13),
- ),
- withFragmentPos(
- frag("number", "[0-9]"),
- newPos(15),
- ),
- },
- },
- },
- {
- caption: "a symbol can have a label",
- src: `
-expr
- : term@lhs add term@rhs
- ;
-`,
- ast: &RootNode{
- Productions: []*ProductionNode{
- withProdPos(
- prod("expr",
- withAltPos(
- alt(
- withElemPos(
- withLabel(
- id("term"),
- withLabelPos(
- label("lhs"),
- newPos(3),
- ),
- ),
- newPos(3),
- ),
- withElemPos(
- id("add"),
- newPos(3),
- ),
- withElemPos(
- withLabel(
- id("term"),
- withLabelPos(
- label("rhs"),
- newPos(3),
- ),
- ),
- newPos(3),
- ),
- ),
- newPos(3),
- ),
- ),
- newPos(2),
- ),
- },
- },
- },
- {
- caption: "a label must be an identifier, not a string",
- src: `
-foo
- : bar@'baz'
- ;
-`,
- synErr: synErrNoLabel,
- },
- {
- caption: "a label must be an identifier, not a pattern",
- src: `
-foo
- : bar@"baz"
- ;
-`,
- synErr: synErrNoLabel,
- },
- {
- caption: "the symbol marker @ must be followed by an identifier",
- src: `
-foo
- : bar@
- ;
-`,
- synErr: synErrNoLabel,
- },
- {
- caption: "a symbol cannot have more than or equal to two labels",
- src: `
-foo
- : bar@baz@bra
- ;
-`,
- synErr: synErrLabelWithNoSymbol,
- },
- {
- caption: "a label must follow a symbol",
- src: `
-foo
- : @baz
- ;
-`,
- synErr: synErrLabelWithNoSymbol,
- },
- {
- caption: "a grammar can contain left and right associativities",
- src: `
-#prec (
- #left l1 l2
- #left l3
- #right r1 r2
- #right r3
-);
-
-s
- : id l1 id l2 id l3 id
- | id r1 id r2 id r3 id
- ;
-
-whitespaces #skip
- : "[\u{0009}\u{0020}]+";
-l1
- : 'l1';
-l2
- : 'l2';
-l3
- : 'l3';
-r1
- : 'r1';
-r2
- : 'r2';
-r3
- : 'r3';
-id
- : "[A-Za-z0-9_]+";
-`,
- ast: &RootNode{
- Directives: []*DirectiveNode{
- withDirPos(
- prec(
- withParamPos(
- group(
- withDirPos(
- leftAssoc(
- withParamPos(idParam("l1"), newPos(3)),
- withParamPos(idParam("l2"), newPos(3)),
- ),
- newPos(3),
- ),
- withDirPos(
- leftAssoc(
- withParamPos(idParam("l3"), newPos(4)),
- ),
- newPos(4),
- ),
- withDirPos(
- rightAssoc(
- withParamPos(idParam("r1"), newPos(5)),
- withParamPos(idParam("r2"), newPos(5)),
- ),
- newPos(5),
- ),
- withDirPos(
- rightAssoc(
- withParamPos(idParam("r3"), newPos(6)),
- ),
- newPos(6),
- ),
- ),
- newPos(2),
- ),
- ),
- newPos(2),
- ),
- },
- Productions: []*ProductionNode{
- prod("s",
- alt(id(`id`), id(`l1`), id(`id`), id(`l2`), id(`id`), id(`l3`), id(`id`)),
- alt(id(`id`), id(`r1`), id(`id`), id(`r2`), id(`id`), id(`r3`), id(`id`)),
- ),
- },
- LexProductions: []*ProductionNode{
- withProdDir(
- prod("whitespaces",
- alt(pat(`[\u{0009}\u{0020}]+`)),
- ),
- dir("skip"),
- ),
- prod("l1", alt(pat(`l1`))),
- prod("l2", alt(pat(`l2`))),
- prod("l3", alt(pat(`l3`))),
- prod("r1", alt(pat(`r1`))),
- prod("r2", alt(pat(`r2`))),
- prod("r3", alt(pat(`r3`))),
- prod("id", alt(pat(`[A-Za-z0-9_]+`))),
- },
- },
- },
- }
- for _, tt := range tests {
- t.Run(tt.caption, func(t *testing.T) {
- ast, err := Parse(strings.NewReader(tt.src))
- if tt.synErr != nil {
- synErrs, ok := err.(verr.SpecErrors)
- if !ok {
- t.Fatalf("unexpected error; want: %v, got: %v", tt.synErr, err)
- }
- synErr := synErrs[0]
- if tt.synErr != synErr.Cause {
- t.Fatalf("unexpected error; want: %v, got: %v", tt.synErr, synErr.Cause)
- }
- if ast != nil {
- t.Fatalf("AST must be nil")
- }
- } else {
- if err != nil {
- t.Fatalf("unexpected error: %v", err)
- }
- if ast == nil {
- t.Fatalf("AST must be non-nil")
- }
- testRootNode(t, ast, tt.ast, tt.checkPosition)
- }
- })
- }
-}
-
-func testRootNode(t *testing.T, root, expected *RootNode, checkPosition bool) {
- t.Helper()
- if len(root.Productions) != len(expected.Productions) {
- t.Fatalf("unexpected length of productions; want: %v, got: %v", len(expected.Productions), len(root.Productions))
- }
- if len(root.Directives) != len(expected.Directives) {
- t.Fatalf("unexpected length of top-level directives; want: %v, got: %v", len(expected.Directives), len(root.Directives))
- }
- for i, dir := range root.Directives {
- testDirectives(t, []*DirectiveNode{dir}, []*DirectiveNode{expected.Directives[i]}, true)
- }
- for i, prod := range root.Productions {
- testProductionNode(t, prod, expected.Productions[i], checkPosition)
- }
- for i, prod := range root.LexProductions {
- testProductionNode(t, prod, expected.LexProductions[i], checkPosition)
- }
- for i, frag := range root.Fragments {
- testFragmentNode(t, frag, expected.Fragments[i], checkPosition)
- }
-}
-
-func testProductionNode(t *testing.T, prod, expected *ProductionNode, checkPosition bool) {
- t.Helper()
- if len(expected.Directives) != len(prod.Directives) {
- t.Fatalf("unexpected directive count; want: %v directives, got: %v directives", len(expected.Directives), len(prod.Directives))
- }
- if len(expected.Directives) > 0 {
- testDirectives(t, prod.Directives, expected.Directives, checkPosition)
- }
- if prod.LHS != expected.LHS {
- t.Fatalf("unexpected LHS; want: %v, got: %v", expected.LHS, prod.LHS)
- }
- if len(prod.RHS) != len(expected.RHS) {
- t.Fatalf("unexpected length of an RHS; want: %v, got: %v", len(expected.RHS), len(prod.RHS))
- }
- for i, alt := range prod.RHS {
- testAlternativeNode(t, alt, expected.RHS[i], checkPosition)
- }
- if checkPosition {
- testPosition(t, prod.Pos, expected.Pos)
- }
-}
-
-func testFragmentNode(t *testing.T, frag, expected *FragmentNode, checkPosition bool) {
- t.Helper()
- if frag.LHS != expected.LHS {
- t.Fatalf("unexpected LHS; want: %v, got: %v", expected.LHS, frag.LHS)
- }
- if frag.RHS != expected.RHS {
- t.Fatalf("unexpected RHS; want: %v, got: %v", expected.RHS, frag.RHS)
- }
- if checkPosition {
- testPosition(t, frag.Pos, expected.Pos)
- }
-}
-
-func testAlternativeNode(t *testing.T, alt, expected *AlternativeNode, checkPosition bool) {
- t.Helper()
- if len(alt.Elements) != len(expected.Elements) {
- t.Fatalf("unexpected length of elements; want: %v, got: %v", len(expected.Elements), len(alt.Elements))
- }
- for i, elem := range alt.Elements {
- testElementNode(t, elem, expected.Elements[i], checkPosition)
- }
- if len(alt.Directives) != len(expected.Directives) {
- t.Fatalf("unexpected alternative directive count; want: %v directive, got: %v directive", len(expected.Directives), len(alt.Directives))
- }
- if len(alt.Directives) > 0 {
- testDirectives(t, alt.Directives, expected.Directives, checkPosition)
- }
- if checkPosition {
- testPosition(t, alt.Pos, expected.Pos)
- }
-}
-
-func testElementNode(t *testing.T, elem, expected *ElementNode, checkPosition bool) {
- t.Helper()
- if elem.ID != expected.ID {
- t.Fatalf("unexpected ID; want: %v, got: %v", expected.ID, elem.ID)
- }
- if elem.Pattern != expected.Pattern {
- t.Fatalf("unexpected pattern; want: %v, got: %v", expected.Pattern, elem.Pattern)
- }
- if checkPosition {
- testPosition(t, elem.Pos, expected.Pos)
- }
-}
-
-func testDirectives(t *testing.T, dirs, expected []*DirectiveNode, checkPosition bool) {
- t.Helper()
- for i, exp := range expected {
- dir := dirs[i]
-
- if exp.Name != dir.Name {
- t.Fatalf("unexpected directive name; want: %+v, got: %+v", exp.Name, dir.Name)
- }
- if len(exp.Parameters) != len(dir.Parameters) {
- t.Fatalf("unexpected directive parameter; want: %+v, got: %+v", exp.Parameters, dir.Parameters)
- }
- for j, expParam := range exp.Parameters {
- testParameter(t, dir.Parameters[j], expParam, checkPosition)
- }
- if checkPosition {
- testPosition(t, dir.Pos, exp.Pos)
- }
- }
-}
-
-func testParameter(t *testing.T, param, expected *ParameterNode, checkPosition bool) {
- t.Helper()
- if param.ID != expected.ID {
- t.Fatalf("unexpected ID parameter; want: %v, got: %v", expected.ID, param.ID)
- }
- if param.String != expected.String {
- t.Fatalf("unexpected string parameter; want: %v, got: %v", expected.ID, param.ID)
- }
- if param.Expansion != expected.Expansion {
- t.Fatalf("unexpected expansion; want: %v, got: %v", expected.Expansion, param.Expansion)
- }
- if checkPosition {
- testPosition(t, param.Pos, expected.Pos)
- }
-}
-
-func testPosition(t *testing.T, pos, expected Position) {
- t.Helper()
- if pos.Row != expected.Row {
- t.Fatalf("unexpected position want: %+v, got: %+v", expected, pos)
- }
-}
diff --git a/spec/grammar/parser/syntax_error.go b/spec/grammar/parser/syntax_error.go
deleted file mode 100644
index 719fb94..0000000
--- a/spec/grammar/parser/syntax_error.go
+++ /dev/null
@@ -1,45 +0,0 @@
-package parser
-
-type SyntaxError struct {
- message string
-}
-
-func newSyntaxError(message string) *SyntaxError {
- return &SyntaxError{
- message: message,
- }
-}
-
-func (e *SyntaxError) Error() string {
- return e.message
-}
-
-var (
- // lexical errors
- synErrIDInvalidChar = newSyntaxError("an identifier can contain only the lower-case letter, the digits, and the underscore")
- synErrIDInvalidUnderscorePos = newSyntaxError("the underscore cannot be placed at the beginning or end of an identifier")
- synErrIDConsecutiveUnderscores = newSyntaxError("the underscore cannot be placed consecutively")
- synErrIDInvalidDigitsPos = newSyntaxError("the digits cannot be placed at the biginning of an identifier")
- synErrUnclosedTerminal = newSyntaxError("unclosed terminal")
- synErrUnclosedString = newSyntaxError("unclosed string")
- synErrIncompletedEscSeq = newSyntaxError("incompleted escape sequence; unexpected EOF following a backslash")
- synErrEmptyPattern = newSyntaxError("a pattern must include at least one character")
- synErrEmptyString = newSyntaxError("a string must include at least one character")
-
- // syntax errors
- synErrInvalidToken = newSyntaxError("invalid token")
- synErrTopLevelDirNoSemicolon = newSyntaxError("a top-level directive must be followed by ;")
- synErrNoProductionName = newSyntaxError("a production name is missing")
- synErrNoColon = newSyntaxError("the colon must precede alternatives")
- synErrNoSemicolon = newSyntaxError("the semicolon is missing at the last of an alternative")
- synErrLabelWithNoSymbol = newSyntaxError("a label must follow a symbol")
- synErrNoLabel = newSyntaxError("an identifier that represents a label is missing after the label marker @")
- synErrNoDirectiveName = newSyntaxError("a directive needs a name")
- synErrNoOrderedSymbolName = newSyntaxError("an ordered symbol name is missing")
- synErrUnclosedDirGroup = newSyntaxError("a directive group must be closed by )")
- synErrPatternInAlt = newSyntaxError("a pattern literal cannot appear directly in an alternative. instead, please define a terminal symbol with the pattern literal")
- synErrStrayExpOp = newSyntaxError("an expansion operator ... must be preceded by an identifier")
- synErrInvalidExpOperand = newSyntaxError("an expansion operator ... can be applied to only an identifier")
- synErrSemicolonNoNewline = newSyntaxError("a semicolon must be followed by a newline")
- synErrFragmentNoPattern = newSyntaxError("a fragment needs one pattern element")
-)
diff --git a/spec/grammar/parser/vartan_lexer.go b/spec/grammar/parser/vartan_lexer.go
deleted file mode 100644
index 76ddfde..0000000
--- a/spec/grammar/parser/vartan_lexer.go
+++ /dev/null
@@ -1,1339 +0,0 @@
-// Code generated by maleeni-go. DO NOT EDIT.
-package parser
-
-import (
- "fmt"
- "io"
- "io/ioutil"
-)
-
-type ModeID int
-
-func (id ModeID) Int() int {
- return int(id)
-}
-
-type StateID int
-
-func (id StateID) Int() int {
- return int(id)
-}
-
-type KindID int
-
-func (id KindID) Int() int {
- return int(id)
-}
-
-type ModeKindID int
-
-func (id ModeKindID) Int() int {
- return int(id)
-}
-
-type LexSpec interface {
- InitialMode() ModeID
- Pop(mode ModeID, modeKind ModeKindID) bool
- Push(mode ModeID, modeKind ModeKindID) (ModeID, bool)
- ModeName(mode ModeID) string
- InitialState(mode ModeID) StateID
- NextState(mode ModeID, state StateID, v int) (StateID, bool)
- Accept(mode ModeID, state StateID) (ModeKindID, bool)
- KindIDAndName(mode ModeID, modeKind ModeKindID) (KindID, string)
-}
-
-// Token representes a token.
-type Token struct {
- // ModeID is an ID of a lex mode.
- ModeID ModeID
-
- // KindID is an ID of a kind. This is unique among all modes.
- KindID KindID
-
- // ModeKindID is an ID of a lexical kind. This is unique only within a mode.
- // Note that you need to use KindID field if you want to identify a kind across all modes.
- ModeKindID ModeKindID
-
- // Row is a row number where a lexeme appears.
- Row int
-
- // Col is a column number where a lexeme appears.
- // Note that Col is counted in code points, not bytes.
- Col int
-
- // Lexeme is a byte sequence matched a pattern of a lexical specification.
- Lexeme []byte
-
- // When this field is true, it means the token is the EOF token.
- EOF bool
-
- // When this field is true, it means the token is an error token.
- Invalid bool
-}
-
-type LexerOption func(l *Lexer) error
-
-// DisableModeTransition disables the active mode transition. Thus, even if the lexical specification has the push and pop
-// operations, the lexer doesn't perform these operations. When the lexical specification has multiple modes, and this option is
-// enabled, you need to call the Lexer.Push and Lexer.Pop methods to perform the mode transition. You can use the Lexer.Mode method
-// to know the current lex mode.
-func DisableModeTransition() LexerOption {
- return func(l *Lexer) error {
- l.passiveModeTran = true
- return nil
- }
-}
-
-type Lexer struct {
- spec LexSpec
- src []byte
- srcPtr int
- row int
- col int
- prevRow int
- prevCol int
- tokBuf []*Token
- modeStack []ModeID
- passiveModeTran bool
-}
-
-// NewLexer returns a new lexer.
-func NewLexer(spec LexSpec, src io.Reader, opts ...LexerOption) (*Lexer, error) {
- b, err := ioutil.ReadAll(src)
- if err != nil {
- return nil, err
- }
- l := &Lexer{
- spec: spec,
- src: b,
- srcPtr: 0,
- row: 0,
- col: 0,
- modeStack: []ModeID{
- spec.InitialMode(),
- },
- passiveModeTran: false,
- }
- for _, opt := range opts {
- err := opt(l)
- if err != nil {
- return nil, err
- }
- }
-
- return l, nil
-}
-
-// Next returns a next token.
-func (l *Lexer) Next() (*Token, error) {
- if len(l.tokBuf) > 0 {
- tok := l.tokBuf[0]
- l.tokBuf = l.tokBuf[1:]
- return tok, nil
- }
-
- tok, err := l.nextAndTransition()
- if err != nil {
- return nil, err
- }
- if !tok.Invalid {
- return tok, nil
- }
- errTok := tok
- for {
- tok, err = l.nextAndTransition()
- if err != nil {
- return nil, err
- }
- if !tok.Invalid {
- break
- }
- errTok.Lexeme = append(errTok.Lexeme, tok.Lexeme...)
- }
- l.tokBuf = append(l.tokBuf, tok)
-
- return errTok, nil
-}
-
-func (l *Lexer) nextAndTransition() (*Token, error) {
- tok, err := l.next()
- if err != nil {
- return nil, err
- }
- if tok.EOF || tok.Invalid {
- return tok, nil
- }
- if l.passiveModeTran {
- return tok, nil
- }
- mode := l.Mode()
- if l.spec.Pop(mode, tok.ModeKindID) {
- err := l.PopMode()
- if err != nil {
- return nil, err
- }
- }
- if mode, ok := l.spec.Push(mode, tok.ModeKindID); ok {
- l.PushMode(mode)
- }
- // The checking length of the mode stack must be at after pop and push operations because those operations can be performed
- // at the same time. When the mode stack has just one element and popped it, the mode stack will be temporarily emptied.
- // However, since a push operation may be performed immediately after it, the lexer allows the stack to be temporarily empty.
- if len(l.modeStack) == 0 {
- return nil, fmt.Errorf("a mode stack must have at least one element")
- }
- return tok, nil
-}
-
-func (l *Lexer) next() (*Token, error) {
- mode := l.Mode()
- state := l.spec.InitialState(mode)
- buf := []byte{}
- unfixedBufLen := 0
- row := l.row
- col := l.col
- var tok *Token
- for {
- v, eof := l.read()
- if eof {
- if tok != nil {
- l.unread(unfixedBufLen)
- return tok, nil
- }
- // When `buf` has unaccepted data and reads the EOF, the lexer treats the buffered data as an invalid token.
- if len(buf) > 0 {
- return &Token{
- ModeID: mode,
- ModeKindID: 0,
- Lexeme: buf,
- Row: row,
- Col: col,
- Invalid: true,
- }, nil
- }
- return &Token{
- ModeID: mode,
- ModeKindID: 0,
- Row: 0,
- Col: 0,
- EOF: true,
- }, nil
- }
- buf = append(buf, v)
- unfixedBufLen++
- nextState, ok := l.spec.NextState(mode, state, int(v))
- if !ok {
- if tok != nil {
- l.unread(unfixedBufLen)
- return tok, nil
- }
- return &Token{
- ModeID: mode,
- ModeKindID: 0,
- Lexeme: buf,
- Row: row,
- Col: col,
- Invalid: true,
- }, nil
- }
- state = nextState
- if modeKindID, ok := l.spec.Accept(mode, state); ok {
- kindID, _ := l.spec.KindIDAndName(mode, modeKindID)
- tok = &Token{
- ModeID: mode,
- KindID: kindID,
- ModeKindID: modeKindID,
- Lexeme: buf,
- Row: row,
- Col: col,
- }
- unfixedBufLen = 0
- }
- }
-}
-
-// Mode returns the current lex mode.
-func (l *Lexer) Mode() ModeID {
- return l.modeStack[len(l.modeStack)-1]
-}
-
-// PushMode adds a lex mode onto the mode stack.
-func (l *Lexer) PushMode(mode ModeID) {
- l.modeStack = append(l.modeStack, mode)
-}
-
-// PopMode removes a lex mode from the top of the mode stack.
-func (l *Lexer) PopMode() error {
- sLen := len(l.modeStack)
- if sLen == 0 {
- return fmt.Errorf("cannot pop a lex mode from a lex mode stack any more")
- }
- l.modeStack = l.modeStack[:sLen-1]
- return nil
-}
-
-func (l *Lexer) read() (byte, bool) {
- if l.srcPtr >= len(l.src) {
- return 0, true
- }
-
- b := l.src[l.srcPtr]
- l.srcPtr++
-
- l.prevRow = l.row
- l.prevCol = l.col
-
- // Count the token positions.
- // The driver treats LF as the end of lines and counts columns in code points, not bytes.
- // To count in code points, we refer to the First Byte column in the Table 3-6.
- //
- // Reference:
- // - [Table 3-6] https://www.unicode.org/versions/Unicode13.0.0/ch03.pdf > Table 3-6. UTF-8 Bit Distribution
- if b < 128 {
- // 0x0A is LF.
- if b == 0x0A {
- l.row++
- l.col = 0
- } else {
- l.col++
- }
- } else if b>>5 == 6 || b>>4 == 14 || b>>3 == 30 {
- l.col++
- }
-
- return b, false
-}
-
-// We must not call this function consecutively to record the token position correctly.
-func (l *Lexer) unread(n int) {
- l.srcPtr -= n
-
- l.row = l.prevRow
- l.col = l.prevCol
-}
-
-const (
- ModeIDNil ModeID = 0
- ModeIDDefault ModeID = 1
- ModeIDTerminal ModeID = 2
- ModeIDStringLiteral ModeID = 3
-)
-
-const (
- ModeNameNil = ""
- ModeNameDefault = "default"
- ModeNameTerminal = "terminal"
- ModeNameStringLiteral = "string_literal"
-)
-
-// ModeIDToName converts a mode ID to a name.
-func ModeIDToName(id ModeID) string {
- switch id {
- case ModeIDNil:
- return ModeNameNil
- case ModeIDDefault:
- return ModeNameDefault
- case ModeIDTerminal:
- return ModeNameTerminal
- case ModeIDStringLiteral:
- return ModeNameStringLiteral
- }
- return ""
-}
-
-const (
- KindIDNil KindID = 0
- KindIDWhiteSpace KindID = 1
- KindIDNewline KindID = 2
- KindIDLineComment KindID = 3
- KindIDKwFragment KindID = 4
- KindIDIdentifier KindID = 5
- KindIDTerminalOpen KindID = 6
- KindIDStringLiteralOpen KindID = 7
- KindIDColon KindID = 8
- KindIDOr KindID = 9
- KindIDSemicolon KindID = 10
- KindIDLabelMarker KindID = 11
- KindIDExpansion KindID = 12
- KindIDDirectiveMarker KindID = 13
- KindIDOrderedSymbolMarker KindID = 14
- KindIDLParen KindID = 15
- KindIDRParen KindID = 16
- KindIDPattern KindID = 17
- KindIDEscapeSymbol KindID = 18
- KindIDTerminalClose KindID = 19
- KindIDCharSeq KindID = 20
- KindIDStringLiteralClose KindID = 21
-)
-
-const (
- KindNameNil = ""
- KindNameWhiteSpace = "white_space"
- KindNameNewline = "newline"
- KindNameLineComment = "line_comment"
- KindNameKwFragment = "kw_fragment"
- KindNameIdentifier = "identifier"
- KindNameTerminalOpen = "terminal_open"
- KindNameStringLiteralOpen = "string_literal_open"
- KindNameColon = "colon"
- KindNameOr = "or"
- KindNameSemicolon = "semicolon"
- KindNameLabelMarker = "label_marker"
- KindNameExpansion = "expansion"
- KindNameDirectiveMarker = "directive_marker"
- KindNameOrderedSymbolMarker = "ordered_symbol_marker"
- KindNameLParen = "l_paren"
- KindNameRParen = "r_paren"
- KindNamePattern = "pattern"
- KindNameEscapeSymbol = "escape_symbol"
- KindNameTerminalClose = "terminal_close"
- KindNameCharSeq = "char_seq"
- KindNameStringLiteralClose = "string_literal_close"
-)
-
-// KindIDToName converts a kind ID to a name.
-func KindIDToName(id KindID) string {
- switch id {
- case KindIDNil:
- return KindNameNil
- case KindIDWhiteSpace:
- return KindNameWhiteSpace
- case KindIDNewline:
- return KindNameNewline
- case KindIDLineComment:
- return KindNameLineComment
- case KindIDKwFragment:
- return KindNameKwFragment
- case KindIDIdentifier:
- return KindNameIdentifier
- case KindIDTerminalOpen:
- return KindNameTerminalOpen
- case KindIDStringLiteralOpen:
- return KindNameStringLiteralOpen
- case KindIDColon:
- return KindNameColon
- case KindIDOr:
- return KindNameOr
- case KindIDSemicolon:
- return KindNameSemicolon
- case KindIDLabelMarker:
- return KindNameLabelMarker
- case KindIDExpansion:
- return KindNameExpansion
- case KindIDDirectiveMarker:
- return KindNameDirectiveMarker
- case KindIDOrderedSymbolMarker:
- return KindNameOrderedSymbolMarker
- case KindIDLParen:
- return KindNameLParen
- case KindIDRParen:
- return KindNameRParen
- case KindIDPattern:
- return KindNamePattern
- case KindIDEscapeSymbol:
- return KindNameEscapeSymbol
- case KindIDTerminalClose:
- return KindNameTerminalClose
- case KindIDCharSeq:
- return KindNameCharSeq
- case KindIDStringLiteralClose:
- return KindNameStringLiteralClose
- }
- return ""
-}
-
-type lexSpec struct {
- pop [][]bool
- push [][]ModeID
- modeNames []string
- initialStates []StateID
- acceptances [][]ModeKindID
- kindIDs [][]KindID
- kindNames []string
- initialModeID ModeID
- modeIDNil ModeID
- modeKindIDNil ModeKindID
- stateIDNil StateID
-
- rowNums [][]int
- rowDisplacements [][]int
- bounds [][]int
- entries [][]StateID
- originalColCounts []int
-}
-
-func NewLexSpec() *lexSpec {
- return &lexSpec{
- pop: [][]bool{
- nil,
- {
- false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
- },
- {
- false, false, false, true,
- },
- {
- false, false, true,
- },
- },
- push: [][]ModeID{
- nil,
- {
- 0, 0, 0, 0, 0, 0, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- },
- {
- 0, 0, 0, 0,
- },
- {
- 0, 0, 0,
- },
- },
- modeNames: []string{
- ModeNameNil,
- ModeNameDefault,
- ModeNameTerminal,
- ModeNameStringLiteral,
- },
- initialStates: []StateID{
- 0,
- 1,
- 1,
- 1,
- },
- acceptances: [][]ModeKindID{
- nil,
- {
- 0, 0, 1, 2, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 5, 5, 5, 5, 5, 5, 5, 4, 5, 0, 0, 2, 6, 7, 8, 9,
- 10, 11, 12, 13, 14, 15, 16,
- },
- {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3,
- },
- {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2,
- },
- },
- kindIDs: [][]KindID{
- nil,
- {
- KindIDNil,
- KindIDWhiteSpace,
- KindIDNewline,
- KindIDLineComment,
- KindIDKwFragment,
- KindIDIdentifier,
- KindIDTerminalOpen,
- KindIDStringLiteralOpen,
- KindIDColon,
- KindIDOr,
- KindIDSemicolon,
- KindIDLabelMarker,
- KindIDExpansion,
- KindIDDirectiveMarker,
- KindIDOrderedSymbolMarker,
- KindIDLParen,
- KindIDRParen,
- },
- {
- KindIDNil,
- KindIDPattern,
- KindIDEscapeSymbol,
- KindIDTerminalClose,
- },
- {
- KindIDNil,
- KindIDCharSeq,
- KindIDStringLiteralClose,
- },
- },
- kindNames: []string{
- KindNameNil,
- KindNameWhiteSpace,
- KindNameNewline,
- KindNameLineComment,
- KindNameKwFragment,
- KindNameIdentifier,
- KindNameTerminalOpen,
- KindNameStringLiteralOpen,
- KindNameColon,
- KindNameOr,
- KindNameSemicolon,
- KindNameLabelMarker,
- KindNameExpansion,
- KindNameDirectiveMarker,
- KindNameOrderedSymbolMarker,
- KindNameLParen,
- KindNameRParen,
- KindNamePattern,
- KindNameEscapeSymbol,
- KindNameTerminalClose,
- KindNameCharSeq,
- KindNameStringLiteralClose,
- },
- initialModeID: ModeIDDefault,
- modeIDNil: ModeIDNil,
- modeKindIDNil: 0,
- stateIDNil: 0,
-
- rowNums: [][]int{
- nil,
- {
- 0, 1, 2, 3, 4, 5, 6, 7, 6, 8, 6, 9, 6, 10, 6, 11, 12, 6, 13, 14,
- 6, 15, 16, 6, 17, 18, 19, 20, 21, 22, 23, 24, 24, 25, 26, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0,
- },
- {
- 0, 1, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 8, 2, 9, 10, 2, 11, 12, 2,
- 13, 2, 14, 2, 15, 2, 16, 2, 17, 2, 18, 19, 2, 20, 21, 2, 22, 23, 2, 24,
- 2, 25, 2, 26, 2, 27, 2, 28, 2, 29, 30, 2, 31, 32, 2, 33, 34, 2, 35, 2,
- 36, 2, 37, 2, 38, 2, 39, 2, 40, 41, 2, 42, 43, 2, 44, 45, 2, 0,
- },
- {
- 0, 1, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 8, 2, 9, 10, 2, 11, 12, 2,
- 13, 2, 14, 2, 15, 2, 16, 2, 17, 2, 18, 19, 2, 20, 21, 2, 22, 23, 2, 0,
- },
- },
- rowDisplacements: [][]int{
- nil,
- {
- 0, 236, 1554, 1555, 1556, 0, 237, 1323, 301, 1387, 365, 1291, 429, 493, 557, 1419, 621, 765, 840, 915,
- 990, 1065, 1140, 1215, 1290, 1558, 1559,
- },
- {
- 0, 0, 736, 2548, 852, 2612, 916, 2372, 980, 1044, 1108, 2839, 1172, 245, 2613, 1236, 2677, 1300, 2420, 1364,
- 1428, 1492, 2855, 1556, 735, 2678, 1620, 2742, 1684, 2468, 1748, 1812, 1876, 2871, 1940, 490, 2743, 2004, 2807, 2068,
- 2516, 2132, 2196, 2260, 2887, 2324,
- },
- {
- 0, 0, 246, 1194, 362, 1258, 426, 1114, 490, 554, 618, 1355, 682, 245, 1259, 746, 1323, 810, 1162, 874,
- 938, 1002, 1371, 1066,
- },
- },
- bounds: [][]int{
- nil,
- {
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, 5, 5, -1, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 1, 1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 1, 1, -1, -1,
- -1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1,
- 1, -1, -1, -1, -1, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, -1, -1, -1, -1, -1, -1, -1, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, -1, -1, -1, -1,
- 17, -1, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, -1, -1,
- -1, -1, -1, -1, -1, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, -1, -1, -1, -1, 18, -1, 18, 18, 18,
- 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, -1, -1, -1, -1, -1, -1, -1,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, -1, -1, -1, -1, 19, -1, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, -1, -1, -1, -1, -1, -1, -1, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, -1, -1, -1, -1, 20, -1, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, -1, -1, -1, -1, -1, -1, -1, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, -1, -1, -1, -1,
- 21, -1, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, -1, -1,
- -1, -1, -1, -1, -1, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
- 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, -1, -1, -1, -1, 22, -1, 22, 22, 22,
- 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
- 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, -1, -1, -1, -1, -1, -1, -1,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, -1, -1, -1, -1, 23, -1, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24,
- 24, 24, 24, 24, 24, 24, 24, 24, -1, -1, -1, -1, -1, -1, -1, 24, 24, 24, 24, 24,
- 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, -1, -1, -1, -1, 24, -1, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 11, 11, 11, 11, 11,
- 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
- 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
- 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 9, 9, 9, 9, 9,
- 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
- 9, 9, 9, 9, 9, 9, 9, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 2, -1, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, 4, 25, 26, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- },
- {
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 13,
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- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
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- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 24, 24, 24, 24, 24,
- 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
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- 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 24, -1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, -1, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9,
- 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
- 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
- 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
- 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
- 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
- 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 28, 28, 28, 28, 28, 28, 28, 28,
- 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
- 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
- 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 30, 30, 30, 30,
- 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30,
- 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30,
- 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 37, 37, 37, 37, 37, 37, 37, 37,
- 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37,
- 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37,
- 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41,
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- 41, 41, 41, 41, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
- 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
- 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
- 42, 42, 42, 42, 42, 42, 42, 42, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
- 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
- 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
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- 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
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- 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
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- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 22,
- 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1,
- },
- },
- entries: [][]StateID{
- nil,
- {
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 0, 5, 5, 0, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 7, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 11, 13, 13,
- 15, 18, 18, 18, 21, 2, 35, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 36, 43, 44, 0, 0, 37, 45, 46, 0, 0,
- 0, 0, 33, 4, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 38, 40, 0, 0, 0, 0,
- 41, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 32, 0, 32, 32, 32, 32, 32, 24, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0,
- 39, 0, 0, 0, 0, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 14, 14, 14, 14, 14, 14, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 0, 0, 0, 0, 0, 0, 0, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0,
- 32, 0, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 25,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0,
- 0, 0, 0, 0, 0, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 32, 0, 26, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 0, 0, 0,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 32, 0, 32, 32, 32, 32, 32, 32, 27, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 0, 0, 0, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 0, 0, 0, 0, 32, 0, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 28,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 0, 0, 0, 0, 0, 0, 0, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0,
- 32, 0, 32, 32, 32, 32, 29, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0,
- 0, 0, 0, 0, 0, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 32, 0, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 30, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 0, 0, 0,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 32, 0, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 31, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 0, 0, 0, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 0, 0, 0, 0, 32, 0, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
- 22, 22, 22, 2, 0, 35, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 5, 34, 42, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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- },
- {
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- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 77, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 20, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 7, 9, 9,
- 11, 14, 14, 14, 17, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 26, 28, 28, 30, 33, 33, 33, 36, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
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- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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- 0, 0, 0, 0, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59,
- 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 60, 62, 62, 62, 62, 62,
- 62, 62, 62, 62, 62, 62, 62, 64, 66, 66, 68, 71, 71, 71, 74, 39, 39, 39, 39, 39,
- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
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- 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
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- 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 45, 47, 47, 49, 52, 52, 52, 55,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
- 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
- 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
- 25, 25, 25, 25, 25, 25, 25, 25, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
- 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
- 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
- 38, 38, 38, 38, 38, 38, 38, 38, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44,
- 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44,
- 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44,
- 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 48, 48, 48,
- 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48,
- 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48,
- 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 51, 51, 51, 51,
- 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51,
- 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51,
- 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51,
- 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53,
- 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53,
- 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53,
- 53, 53, 53, 53, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
- 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
- 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
- 54, 54, 54, 54, 54, 54, 54, 54, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57,
- 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57,
- 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57,
- 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 63, 63, 63, 63, 63, 63, 63, 63,
- 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
- 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
- 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 67, 67, 67, 67,
- 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
- 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
- 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
- 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
- 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
- 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70,
- 70, 70, 70, 70, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72,
- 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72,
- 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72,
- 72, 72, 72, 72, 72, 72, 72, 72, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
- 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
- 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
- 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 76, 76, 76, 76, 76, 76, 76, 76,
- 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76,
- 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76,
- 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 50, 50, 50, 50, 50, 50, 50, 50,
- 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50,
- 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50,
- 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69,
- 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69,
- 69, 69, 69, 69, 69, 69, 69, 69, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 0, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 42, 42,
- 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
- 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
- 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
- 46, 46, 0, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
- 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- 18, 18, 18, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 56,
- 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 75, 75, 75, 75, 75,
- 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0,
- },
- {
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 39,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 7, 9, 9,
- 11, 14, 14, 14, 17, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 0, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 0, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 0, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 26, 28, 28, 30, 33, 33, 33, 36, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 25, 25, 25, 25, 25, 25,
- 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
- 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
- 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 38, 38, 38, 38, 38, 38,
- 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
- 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
- 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 0, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 37,
- 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0,
- },
- },
- originalColCounts: nil,
- }
-}
-
-func (s *lexSpec) InitialMode() ModeID {
- return s.initialModeID
-}
-
-func (s *lexSpec) Pop(mode ModeID, modeKind ModeKindID) bool {
- return s.pop[mode][modeKind]
-}
-
-func (s *lexSpec) Push(mode ModeID, modeKind ModeKindID) (ModeID, bool) {
- id := s.push[mode][modeKind]
- return id, id != s.modeIDNil
-}
-
-func (s *lexSpec) ModeName(mode ModeID) string {
- return s.modeNames[mode]
-}
-
-func (s *lexSpec) InitialState(mode ModeID) StateID {
- return s.initialStates[mode]
-}
-
-func (s *lexSpec) NextState(mode ModeID, state StateID, v int) (StateID, bool) {
- rowNum := s.rowNums[mode][state]
- d := s.rowDisplacements[mode][rowNum]
- if s.bounds[mode][d+v] != rowNum {
- return s.stateIDNil, false
- }
- return s.entries[mode][d+v], true
-}
-
-func (s *lexSpec) Accept(mode ModeID, state StateID) (ModeKindID, bool) {
- id := s.acceptances[mode][state]
- return id, id != s.modeKindIDNil
-}
-
-func (s *lexSpec) KindIDAndName(mode ModeID, modeKind ModeKindID) (KindID, string) {
- id := s.kindIDs[mode][modeKind]
- return id, s.kindNames[id]
-}
diff --git a/spec/grammar/util.go b/spec/grammar/util.go
deleted file mode 100644
index bf3f233..0000000
--- a/spec/grammar/util.go
+++ /dev/null
@@ -1,21 +0,0 @@
-package grammar
-
-import "strings"
-
-var rep = strings.NewReplacer(
- `.`, `\.`,
- `*`, `\*`,
- `+`, `\+`,
- `?`, `\?`,
- `|`, `\|`,
- `(`, `\(`,
- `)`, `\)`,
- `[`, `\[`,
- `\`, `\\`,
-)
-
-// EscapePattern escapes the special characters.
-// For example, EscapePattern(`+`) returns `\+`.
-func EscapePattern(s string) string {
- return rep.Replace(s)
-}
diff --git a/spec/test/parser.go b/spec/test/parser.go
deleted file mode 100644
index b7265d7..0000000
--- a/spec/test/parser.go
+++ /dev/null
@@ -1,336 +0,0 @@
-//go:generate vartan compile tree.vartan -o tree.json
-//go:generate vartan-go tree.json --package test
-
-package test
-
-import (
- "bufio"
- "bytes"
- "errors"
- "fmt"
- "io"
- "regexp"
- "strconv"
- "strings"
- "unicode/utf8"
-)
-
-type TreeDiff struct {
- ExpectedPath string
- ActualPath string
- Message string
-}
-
-func newTreeDiff(expected, actual *Tree, message string) *TreeDiff {
- return &TreeDiff{
- ExpectedPath: expected.path(),
- ActualPath: actual.path(),
- Message: message,
- }
-}
-
-type Tree struct {
- Parent *Tree
- Offset int
- Kind string
- Children []*Tree
- Lexeme string
-}
-
-func NewNonTerminalTree(kind string, children ...*Tree) *Tree {
- return &Tree{
- Kind: kind,
- Children: children,
- }
-}
-
-func NewTerminalNode(kind string, lexeme string) *Tree {
- return &Tree{
- Kind: kind,
- Lexeme: lexeme,
- }
-}
-
-func (t *Tree) Fill() *Tree {
- for i, c := range t.Children {
- c.Parent = t
- c.Offset = i
- c.Fill()
- }
- return t
-}
-
-func (t *Tree) path() string {
- if t.Parent == nil {
- return t.Kind
- }
- return fmt.Sprintf("%v.[%v]%v", t.Parent.path(), t.Offset, t.Kind)
-}
-
-func (t *Tree) Format() []byte {
- var b bytes.Buffer
- t.format(&b, 0)
- return b.Bytes()
-}
-
-func (t *Tree) format(buf *bytes.Buffer, depth int) {
- for i := 0; i < depth; i++ {
- buf.WriteString(" ")
- }
- buf.WriteString("(")
- buf.WriteString(t.Kind)
- if len(t.Children) > 0 {
- buf.WriteString("\n")
- for i, c := range t.Children {
- c.format(buf, depth+1)
- if i < len(t.Children)-1 {
- buf.WriteString("\n")
- }
- }
- }
- buf.WriteString(")")
-}
-
-func DiffTree(expected, actual *Tree) []*TreeDiff {
- if expected == nil && actual == nil {
- return nil
- }
- if actual.Kind != expected.Kind {
- msg := fmt.Sprintf("unexpected kind: expected '%v' but got '%v'", expected.Kind, actual.Kind)
- return []*TreeDiff{
- newTreeDiff(expected, actual, msg),
- }
- }
- if expected.Lexeme != actual.Lexeme {
- msg := fmt.Sprintf("unexpected lexeme: expected '%v' but got '%v'", expected.Lexeme, actual.Lexeme)
- return []*TreeDiff{
- newTreeDiff(expected, actual, msg),
- }
- }
- if len(actual.Children) != len(expected.Children) {
- msg := fmt.Sprintf("unexpected node count: expected %v but got %v", len(expected.Children), len(actual.Children))
- return []*TreeDiff{
- newTreeDiff(expected, actual, msg),
- }
- }
- var diffs []*TreeDiff
- for i, exp := range expected.Children {
- if ds := DiffTree(exp, actual.Children[i]); len(ds) > 0 {
- diffs = append(diffs, ds...)
- }
- }
- return diffs
-}
-
-type TestCase struct {
- Description string
- Source []byte
- Output *Tree
-}
-
-func ParseTestCase(r io.Reader) (*TestCase, error) {
- parts, err := splitIntoParts(r)
- if err != nil {
- return nil, err
- }
- if len(parts) != 3 {
- return nil, fmt.Errorf("too many or too few part delimiters: a test case consists of just tree parts: %v parts found", len(parts))
- }
-
- tp := &treeParser{
- lineOffset: parts[0].lineCount + parts[1].lineCount + 2,
- }
- tree, err := tp.parseTree(bytes.NewReader(parts[2].buf))
- if err != nil {
- return nil, err
- }
-
- return &TestCase{
- Description: string(parts[0].buf),
- Source: parts[1].buf,
- Output: tree,
- }, nil
-}
-
-type testCasePart struct {
- buf []byte
- lineCount int
-}
-
-func splitIntoParts(r io.Reader) ([]*testCasePart, error) {
- var bufs []*testCasePart
- s := bufio.NewScanner(r)
- for {
- buf, lineCount, err := readPart(s)
- if err != nil {
- return nil, err
- }
- if buf == nil {
- break
- }
- bufs = append(bufs, &testCasePart{
- buf: buf,
- lineCount: lineCount,
- })
- }
- if err := s.Err(); err != nil {
- return nil, err
- }
- return bufs, nil
-}
-
-var reDelim = regexp.MustCompile(`^\s*---+\s*$`)
-
-func readPart(s *bufio.Scanner) ([]byte, int, error) {
- if !s.Scan() {
- return nil, 0, s.Err()
- }
- buf := &bytes.Buffer{}
- line := s.Bytes()
- if reDelim.Match(line) {
- // Return an empty slice because (*bytes.Buffer).Bytes() returns nil if we have never written data.
- return []byte{}, 0, nil
- }
- _, err := buf.Write(line)
- if err != nil {
- return nil, 0, err
- }
- lineCount := 1
- for s.Scan() {
- line := s.Bytes()
- if reDelim.Match(line) {
- return buf.Bytes(), lineCount, nil
- }
- _, err := buf.Write([]byte("\n"))
- if err != nil {
- return nil, 0, err
- }
- _, err = buf.Write(line)
- if err != nil {
- return nil, 0, err
- }
- lineCount++
- }
- if err := s.Err(); err != nil {
- return nil, 0, err
- }
- return buf.Bytes(), lineCount, nil
-}
-
-type treeParser struct {
- lineOffset int
-}
-
-func (tp *treeParser) parseTree(src io.Reader) (*Tree, error) {
- toks, err := NewTokenStream(src)
- if err != nil {
- return nil, err
- }
- gram := NewGrammar()
- tb := NewDefaultSyntaxTreeBuilder()
- p, err := NewParser(toks, gram, SemanticAction(NewASTActionSet(gram, tb)))
- if err != nil {
- return nil, err
- }
- err = p.Parse()
- if err != nil {
- return nil, err
- }
- synErrs := p.SyntaxErrors()
- if len(synErrs) > 0 {
- var b strings.Builder
- b.Write(formatSyntaxError(synErrs[0], gram, tp.lineOffset))
- for _, synErr := range synErrs[1:] {
- b.WriteRune('\n')
- b.Write(formatSyntaxError(synErr, gram, tp.lineOffset))
- }
- return nil, errors.New(b.String())
- }
- t, err := tp.genTree(tb.Tree())
- if err != nil {
- return nil, err
- }
- return t.Fill(), nil
-}
-
-func formatSyntaxError(synErr *SyntaxError, gram Grammar, lineOffset int) []byte {
- var b bytes.Buffer
-
- b.WriteString(fmt.Sprintf("%v:%v: %v: ", lineOffset+synErr.Row+1, synErr.Col+1, synErr.Message))
-
- tok := synErr.Token
- switch {
- case tok.EOF():
- b.WriteString("<eof>")
- case tok.Invalid():
- b.WriteString(fmt.Sprintf("'%v' (<invalid>)", string(tok.Lexeme())))
- default:
- if term := gram.Terminal(tok.TerminalID()); term != "" {
- b.WriteString(fmt.Sprintf("'%v' (%v)", string(tok.Lexeme()), term))
- } else {
- b.WriteString(fmt.Sprintf("'%v'", string(tok.Lexeme())))
- }
- }
- b.WriteString(fmt.Sprintf(": expected: %v", synErr.ExpectedTerminals[0]))
- for _, t := range synErr.ExpectedTerminals[1:] {
- b.WriteString(fmt.Sprintf(", %v", t))
- }
-
- return b.Bytes()
-}
-
-func (tp *treeParser) genTree(node *Node) (*Tree, error) {
- // A node labeled 'error' cannot have children. It always must be (error).
- if sym := node.Children[0]; sym.Text == "error" {
- if len(node.Children) > 1 {
- return nil, fmt.Errorf("%v:%v: error node cannot take children", tp.lineOffset+sym.Row+1, sym.Col+1)
- }
- return NewTerminalNode(sym.Text, ""), nil
- }
-
- if len(node.Children) == 2 && node.Children[1].KindName == "string" {
- var text string
- str := node.Children[1].Children[0]
- switch str.KindName {
- case "raw_string":
- text = str.Children[0].Text
- case "interpreted_string":
- var b strings.Builder
- for _, c := range str.Children {
- switch c.KindName {
- case "escaped_seq":
- b.WriteString(strings.TrimPrefix(`\`, c.Text))
- case "escape_char":
- return nil, fmt.Errorf("%v:%v: incomplete escape sequence", tp.lineOffset+c.Row+1, c.Col+1)
- case "codepoint_expr":
- cp := c.Children[0]
- n, err := strconv.ParseInt(cp.Text, 16, 64)
- if err != nil {
- return nil, fmt.Errorf("%v:%v: %v", tp.lineOffset+cp.Row+1, cp.Col+1, err)
- }
- if !utf8.ValidRune(rune(n)) {
- return nil, fmt.Errorf("%v:%v: invalid code point: %v", tp.lineOffset+cp.Row+1, cp.Col+1, cp.Text)
- }
- b.WriteRune(rune(n))
- default:
- b.WriteString(c.Text)
- }
- }
- text = b.String()
- }
- return NewTerminalNode(node.Children[0].Text, text), nil
- }
-
- var children []*Tree
- if len(node.Children) > 1 {
- children = make([]*Tree, len(node.Children)-1)
- for i, c := range node.Children[1:] {
- var err error
- children[i], err = tp.genTree(c)
- if err != nil {
- return nil, err
- }
- }
- }
- return NewNonTerminalTree(node.Children[0].Text, children...), nil
-}
diff --git a/spec/test/parser_test.go b/spec/test/parser_test.go
deleted file mode 100644
index eddba92..0000000
--- a/spec/test/parser_test.go
+++ /dev/null
@@ -1,411 +0,0 @@
-package test
-
-import (
- "fmt"
- "reflect"
- "strings"
- "testing"
-)
-
-func TestTree_Format(t *testing.T) {
- expected := `(a
- (b
- (c))
- (d)
- (e))`
- tree := NewNonTerminalTree("a",
- NewNonTerminalTree("b",
- NewNonTerminalTree("c"),
- ),
- NewNonTerminalTree("d"),
- NewNonTerminalTree("e"),
- )
- actual := string(tree.Format())
- if actual != expected {
- t.Fatalf("unexpected format:\n%v", actual)
- }
-}
-
-func TestDiffTree(t *testing.T) {
- tests := []struct {
- t1 *Tree
- t2 *Tree
- different bool
- }{
- {
- t1: NewTerminalNode("a", "a"),
- t2: NewTerminalNode("a", "a"),
- },
- {
- t1: NewTerminalNode("a", "a"),
- t2: NewTerminalNode("a", "A"),
- different: true,
- },
- {
- t1: NewTerminalNode("a", "a"),
- t2: NewTerminalNode("A", "a"),
- different: true,
- },
- {
- t1: NewNonTerminalTree("a"),
- t2: NewNonTerminalTree("a"),
- },
- {
- t1: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- ),
- t2: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- ),
- },
- {
- t1: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- NewNonTerminalTree("c"),
- NewNonTerminalTree("d"),
- ),
- t2: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- NewNonTerminalTree("c"),
- NewNonTerminalTree("d"),
- ),
- },
- {
- t1: NewNonTerminalTree("a",
- NewNonTerminalTree("b",
- NewNonTerminalTree("c"),
- ),
- NewNonTerminalTree("d",
- NewNonTerminalTree("d"),
- ),
- ),
- t2: NewNonTerminalTree("a",
- NewNonTerminalTree("b",
- NewNonTerminalTree("c"),
- ),
- NewNonTerminalTree("d",
- NewNonTerminalTree("d"),
- ),
- ),
- },
- {
- t1: NewNonTerminalTree("a"),
- t2: NewNonTerminalTree("b"),
- different: true,
- },
- {
- t1: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- ),
- t2: NewNonTerminalTree("a"),
- different: true,
- },
- {
- t1: NewNonTerminalTree("a"),
- t2: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- ),
- different: true,
- },
- {
- t1: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- ),
- t2: NewNonTerminalTree("a",
- NewNonTerminalTree("c"),
- ),
- different: true,
- },
- {
- t1: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- NewNonTerminalTree("c"),
- NewNonTerminalTree("d"),
- ),
- t2: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- NewNonTerminalTree("c"),
- ),
- different: true,
- },
- {
- t1: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- NewNonTerminalTree("c"),
- ),
- t2: NewNonTerminalTree("a",
- NewNonTerminalTree("b"),
- NewNonTerminalTree("c"),
- NewNonTerminalTree("d"),
- ),
- different: true,
- },
- {
- t1: NewNonTerminalTree("a",
- NewNonTerminalTree("b",
- NewNonTerminalTree("c"),
- ),
- ),
- t2: NewNonTerminalTree("a",
- NewNonTerminalTree("b",
- NewNonTerminalTree("d"),
- ),
- ),
- different: true,
- },
- }
- for i, tt := range tests {
- t.Run(fmt.Sprintf("#%v", i), func(t *testing.T) {
- diffs := DiffTree(tt.t1, tt.t2)
- if tt.different && len(diffs) == 0 {
- t.Fatalf("unexpected result")
- } else if !tt.different && len(diffs) > 0 {
- t.Fatalf("unexpected result")
- }
- })
- }
-}
-
-func TestParseTestCase(t *testing.T) {
- tests := []struct {
- src string
- tc *TestCase
- parseErr bool
- }{
- {
- src: `test
----
-foo
----
-(foo)
-`,
- tc: &TestCase{
- Description: "test",
- Source: []byte("foo"),
- Output: NewNonTerminalTree("foo").Fill(),
- },
- },
- {
- src: `
-test
-
----
-
-foo
-
----
-
-(foo)
-
-`,
- tc: &TestCase{
- Description: "\ntest\n",
- Source: []byte("\nfoo\n"),
- Output: NewNonTerminalTree("foo").Fill(),
- },
- },
- // The length of a part delimiter may be greater than 3.
- {
- src: `
-test
-----
-foo
-----
-(foo)
-`,
- tc: &TestCase{
- Description: "\ntest",
- Source: []byte("foo"),
- Output: NewNonTerminalTree("foo").Fill(),
- },
- },
- // The description part may be empty.
- {
- src: `----
-foo
-----
-(foo)
-`,
- tc: &TestCase{
- Description: "",
- Source: []byte("foo"),
- Output: NewNonTerminalTree("foo").Fill(),
- },
- },
- // The source part may be empty.
- {
- src: `test
----
----
-(foo)
-`,
- tc: &TestCase{
- Description: "test",
- Source: []byte{},
- Output: NewNonTerminalTree("foo").Fill(),
- },
- },
- // NOTE: If there is a delimiter at the end of a test case, we really want to make it a syntax error,
- // but we allow it to simplify the implementation of the parser.
- {
- src: `test
-----
-foo
-----
-(foo)
----
-`,
- tc: &TestCase{
- Description: "test",
- Source: []byte("foo"),
- Output: NewNonTerminalTree("foo").Fill(),
- },
- },
- {
- src: ``,
- parseErr: true,
- },
- {
- src: `test
----
-`,
- parseErr: true,
- },
- {
- src: `test
----
-foo
-`,
- parseErr: true,
- },
- {
- src: `test
----
-foo
----
-`,
- parseErr: true,
- },
- {
- src: `test
---
-foo
---
-(foo)
-`,
- parseErr: true,
- },
- // A node may have just one string node.
- {
- src: `test
-----
-foo bar
-----
-(foo (bar 'bar'))
-`,
- tc: &TestCase{
- Description: "test",
- Source: []byte("foo bar"),
- Output: NewNonTerminalTree("foo",
- NewTerminalNode("bar", "bar"),
- ).Fill(),
- },
- },
- // A node may have just one pattern node.
- {
- src: `test
-----
-foo bar
-----
-(foo (bar "bar"))
-`,
- tc: &TestCase{
- Description: "test",
- Source: []byte("foo bar"),
- Output: NewNonTerminalTree("foo",
- NewTerminalNode("bar", "bar"),
- ).Fill(),
- },
- },
- // A node may be the error node.
- {
- src: `test
-----
-foo x
-----
-(foo (error))
-`,
- tc: &TestCase{
- Description: "test",
- Source: []byte("foo x"),
- Output: NewNonTerminalTree("foo",
- NewTerminalNode("error", ""),
- ).Fill(),
- },
- },
- // The error node cannot have a string node.
- {
- src: `test
-----
-foo x
-----
-(foo (error 'x'))
-`,
- parseErr: true,
- },
- // The error node cannot have a pattern node.
- {
- src: `test
-----
-foo x
-----
-(foo (error "x"))
-`,
- parseErr: true,
- },
- // The error node cannot have another node.
- {
- src: `test
-----
-foo x
-----
-(foo (error (a)))
-`,
- parseErr: true,
- },
- {
- src: `test
----
-foo
----
-?
-`,
- parseErr: true,
- },
- }
- for i, tt := range tests {
- t.Run(fmt.Sprintf("#%v", i), func(t *testing.T) {
- tc, err := ParseTestCase(strings.NewReader(tt.src))
- if tt.parseErr {
- if err == nil {
- t.Fatalf("an expected error didn't occur")
- }
- } else {
- if err != nil {
- t.Fatal(err)
- }
- testTestCase(t, tt.tc, tc)
- }
- })
- }
-}
-
-func testTestCase(t *testing.T, expected, actual *TestCase) {
- t.Helper()
-
- if expected.Description != actual.Description ||
- !reflect.DeepEqual(expected.Source, actual.Source) ||
- len(DiffTree(expected.Output, actual.Output)) > 0 {
- t.Fatalf("unexpected test case: want: %#v, got: %#v", expected, actual)
- }
-}
diff --git a/spec/test/tree-report.json b/spec/test/tree-report.json
deleted file mode 100644
index c2018e5..0000000
--- a/spec/test/tree-report.json
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/spec/test/tree.vartan b/spec/test/tree.vartan
deleted file mode 100644
index aa8f733..0000000
--- a/spec/test/tree.vartan
+++ /dev/null
@@ -1,87 +0,0 @@
-#name tree;
-
-#prec (
- #assign l_paren
- #assign $empty_tree
-);
-
-tree
- : l_paren identifier tree_list r_paren #ast identifier tree_list...
- | l_paren identifier string r_paren #ast identifier string
- | l_paren error r_paren #recover #ast error
- ;
-tree_list
- : tree_list tree #ast tree_list... tree
- | tree
- | #prec $empty_tree
- ;
-string
- : raw_string
- | interpreted_string
- ;
-raw_string
- : raw_string_open opt_raw_string_body raw_string_close #ast opt_raw_string_body...
- ;
-opt_raw_string_body
- : raw_string_body
- |
- ;
-interpreted_string
- : interpreted_string_open opt_interpreted_string_body interpreted_string_close #ast opt_interpreted_string_body...
- | interpreted_string_open error interpreted_string_close #recover #ast error
- ;
-opt_interpreted_string_body
- : interpreted_string_body #ast interpreted_string_body...
- |
- ;
-interpreted_string_body
- : interpreted_string_body interpreted_string_elem #ast interpreted_string_body... interpreted_string_elem...
- | interpreted_string_elem #ast interpreted_string_elem...
- ;
-interpreted_string_elem
- : interpreted_seq
- | l_brace
- | r_brace
- | hex_digits
- | escaped_seq
- | escape_char
- | codepoint_expr
- ;
-codepoint_expr
- : codepoint_prefix l_brace hex_digits r_brace #ast hex_digits
- ;
-
-ws #skip
- : "[\u{0009}\u{000A}\u{000D}\u{0020}]+";
-l_paren
- : '(';
-r_paren
- : ')';
-identifier
- : "[0-9A-Za-z_]+";
-
-raw_string_open #push raw_string
- : "'";
-raw_string_body #mode raw_string
- : "[^']+";
-raw_string_close #mode raw_string #pop
- : "'";
-
-interpreted_string_open #push interpreted_string
- : '"';
-interpreted_seq #mode interpreted_string
- : "[^\"\\{}0-9A-Fa-f]+";
-codepoint_prefix #mode interpreted_string
- : '\u';
-l_brace #mode interpreted_string
- : '{';
-r_brace #mode interpreted_string
- : '}';
-hex_digits #mode interpreted_string
- : "[0-9A-Fa-f]+";
-escaped_seq #mode interpreted_string
- : "\\[\"\\]";
-escape_char #mode interpreted_string
- : '\';
-interpreted_string_close #mode interpreted_string #pop
- : '"';
diff --git a/spec/test/tree_lexer.go b/spec/test/tree_lexer.go
deleted file mode 100644
index 8bb1c87..0000000
--- a/spec/test/tree_lexer.go
+++ /dev/null
@@ -1,1024 +0,0 @@
-// Code generated by vartan-go. DO NOT EDIT.
-package test
-
-import (
- "fmt"
- "io"
-)
-
-type ModeID int
-
-func (id ModeID) Int() int {
- return int(id)
-}
-
-type StateID int
-
-func (id StateID) Int() int {
- return int(id)
-}
-
-type KindID int
-
-func (id KindID) Int() int {
- return int(id)
-}
-
-type ModeKindID int
-
-func (id ModeKindID) Int() int {
- return int(id)
-}
-
-type LexSpec interface {
- InitialMode() ModeID
- Pop(mode ModeID, modeKind ModeKindID) bool
- Push(mode ModeID, modeKind ModeKindID) (ModeID, bool)
- ModeName(mode ModeID) string
- InitialState(mode ModeID) StateID
- NextState(mode ModeID, state StateID, v int) (StateID, bool)
- Accept(mode ModeID, state StateID) (ModeKindID, bool)
- KindIDAndName(mode ModeID, modeKind ModeKindID) (KindID, string)
-}
-
-// Token representes a token.
-type Token struct {
- // ModeID is an ID of a lex mode.
- ModeID ModeID
-
- // KindID is an ID of a kind. This is unique among all modes.
- KindID KindID
-
- // ModeKindID is an ID of a lexical kind. This is unique only within a mode.
- // Note that you need to use KindID field if you want to identify a kind across all modes.
- ModeKindID ModeKindID
-
- // Row is a row number where a lexeme appears.
- Row int
-
- // Col is a column number where a lexeme appears.
- // Note that Col is counted in code points, not bytes.
- Col int
-
- // Lexeme is a byte sequence matched a pattern of a lexical specification.
- Lexeme []byte
-
- // When this field is true, it means the token is the EOF token.
- EOF bool
-
- // When this field is true, it means the token is an error token.
- Invalid bool
-}
-
-type LexerOption func(l *Lexer) error
-
-// DisableModeTransition disables the active mode transition. Thus, even if the lexical specification has the push and pop
-// operations, the lexer doesn't perform these operations. When the lexical specification has multiple modes, and this option is
-// enabled, you need to call the Lexer.Push and Lexer.Pop methods to perform the mode transition. You can use the Lexer.Mode method
-// to know the current lex mode.
-func DisableModeTransition() LexerOption {
- return func(l *Lexer) error {
- l.passiveModeTran = true
- return nil
- }
-}
-
-type Lexer struct {
- spec LexSpec
- src []byte
- srcPtr int
- row int
- col int
- prevRow int
- prevCol int
- tokBuf []*Token
- modeStack []ModeID
- passiveModeTran bool
-}
-
-// NewLexer returns a new lexer.
-func NewLexer(spec LexSpec, src io.Reader, opts ...LexerOption) (*Lexer, error) {
- b, err := io.ReadAll(src)
- if err != nil {
- return nil, err
- }
- l := &Lexer{
- spec: spec,
- src: b,
- srcPtr: 0,
- row: 0,
- col: 0,
- modeStack: []ModeID{
- spec.InitialMode(),
- },
- passiveModeTran: false,
- }
- for _, opt := range opts {
- err := opt(l)
- if err != nil {
- return nil, err
- }
- }
-
- return l, nil
-}
-
-// Next returns a next token.
-func (l *Lexer) Next() (*Token, error) {
- if len(l.tokBuf) > 0 {
- tok := l.tokBuf[0]
- l.tokBuf = l.tokBuf[1:]
- return tok, nil
- }
-
- tok, err := l.nextAndTransition()
- if err != nil {
- return nil, err
- }
- if !tok.Invalid {
- return tok, nil
- }
- errTok := tok
- for {
- tok, err = l.nextAndTransition()
- if err != nil {
- return nil, err
- }
- if !tok.Invalid {
- break
- }
- errTok.Lexeme = append(errTok.Lexeme, tok.Lexeme...)
- }
- l.tokBuf = append(l.tokBuf, tok)
-
- return errTok, nil
-}
-
-func (l *Lexer) nextAndTransition() (*Token, error) {
- tok, err := l.next()
- if err != nil {
- return nil, err
- }
- if tok.EOF || tok.Invalid {
- return tok, nil
- }
- if l.passiveModeTran {
- return tok, nil
- }
- mode := l.Mode()
- if l.spec.Pop(mode, tok.ModeKindID) {
- err := l.PopMode()
- if err != nil {
- return nil, err
- }
- }
- if mode, ok := l.spec.Push(mode, tok.ModeKindID); ok {
- l.PushMode(mode)
- }
- // The checking length of the mode stack must be at after pop and push operations because those operations can be performed
- // at the same time. When the mode stack has just one element and popped it, the mode stack will be temporarily emptied.
- // However, since a push operation may be performed immediately after it, the lexer allows the stack to be temporarily empty.
- if len(l.modeStack) == 0 {
- return nil, fmt.Errorf("a mode stack must have at least one element")
- }
- return tok, nil
-}
-
-func (l *Lexer) next() (*Token, error) {
- mode := l.Mode()
- state := l.spec.InitialState(mode)
- buf := []byte{}
- unfixedBufLen := 0
- row := l.row
- col := l.col
- var tok *Token
- for {
- v, eof := l.read()
- if eof {
- if tok != nil {
- l.unread(unfixedBufLen)
- return tok, nil
- }
- // When `buf` has unaccepted data and reads the EOF, the lexer treats the buffered data as an invalid token.
- if len(buf) > 0 {
- return &Token{
- ModeID: mode,
- ModeKindID: 0,
- Lexeme: buf,
- Row: row,
- Col: col,
- Invalid: true,
- }, nil
- }
- return &Token{
- ModeID: mode,
- ModeKindID: 0,
- Row: 0,
- Col: 0,
- EOF: true,
- }, nil
- }
- buf = append(buf, v)
- unfixedBufLen++
- nextState, ok := l.spec.NextState(mode, state, int(v))
- if !ok {
- if tok != nil {
- l.unread(unfixedBufLen)
- return tok, nil
- }
- return &Token{
- ModeID: mode,
- ModeKindID: 0,
- Lexeme: buf,
- Row: row,
- Col: col,
- Invalid: true,
- }, nil
- }
- state = nextState
- if modeKindID, ok := l.spec.Accept(mode, state); ok {
- kindID, _ := l.spec.KindIDAndName(mode, modeKindID)
- tok = &Token{
- ModeID: mode,
- KindID: kindID,
- ModeKindID: modeKindID,
- Lexeme: buf,
- Row: row,
- Col: col,
- }
- unfixedBufLen = 0
- }
- }
-}
-
-// Mode returns the current lex mode.
-func (l *Lexer) Mode() ModeID {
- return l.modeStack[len(l.modeStack)-1]
-}
-
-// PushMode adds a lex mode onto the mode stack.
-func (l *Lexer) PushMode(mode ModeID) {
- l.modeStack = append(l.modeStack, mode)
-}
-
-// PopMode removes a lex mode from the top of the mode stack.
-func (l *Lexer) PopMode() error {
- sLen := len(l.modeStack)
- if sLen == 0 {
- return fmt.Errorf("cannot pop a lex mode from a lex mode stack any more")
- }
- l.modeStack = l.modeStack[:sLen-1]
- return nil
-}
-
-func (l *Lexer) read() (byte, bool) {
- if l.srcPtr >= len(l.src) {
- return 0, true
- }
-
- b := l.src[l.srcPtr]
- l.srcPtr++
-
- l.prevRow = l.row
- l.prevCol = l.col
-
- // Count the token positions.
- // The driver treats LF as the end of lines and counts columns in code points, not bytes.
- // To count in code points, we refer to the First Byte column in the Table 3-6.
- //
- // Reference:
- // - [Table 3-6] https://www.unicode.org/versions/Unicode13.0.0/ch03.pdf > Table 3-6. UTF-8 Bit Distribution
- if b < 128 {
- // 0x0A is LF.
- if b == 0x0A {
- l.row++
- l.col = 0
- } else {
- l.col++
- }
- } else if b>>5 == 6 || b>>4 == 14 || b>>3 == 30 {
- l.col++
- }
-
- return b, false
-}
-
-// We must not call this function consecutively to record the token position correctly.
-func (l *Lexer) unread(n int) {
- l.srcPtr -= n
-
- l.row = l.prevRow
- l.col = l.prevCol
-}
-
-const (
- ModeIDNil ModeID = 0
- ModeIDDefault ModeID = 1
- ModeIDRawString ModeID = 2
- ModeIDInterpretedString ModeID = 3
-)
-
-const (
- ModeNameNil = ""
- ModeNameDefault = "default"
- ModeNameRawString = "raw_string"
- ModeNameInterpretedString = "interpreted_string"
-)
-
-// ModeIDToName converts a mode ID to a name.
-func ModeIDToName(id ModeID) string {
- switch id {
- case ModeIDNil:
- return ModeNameNil
- case ModeIDDefault:
- return ModeNameDefault
- case ModeIDRawString:
- return ModeNameRawString
- case ModeIDInterpretedString:
- return ModeNameInterpretedString
- }
- return ""
-}
-
-const (
- KindIDNil KindID = 0
- KindIDWs KindID = 1
- KindIDLParen KindID = 2
- KindIDRParen KindID = 3
- KindIDIdentifier KindID = 4
- KindIDRawStringOpen KindID = 5
- KindIDInterpretedStringOpen KindID = 6
- KindIDRawStringBody KindID = 7
- KindIDRawStringClose KindID = 8
- KindIDInterpretedSeq KindID = 9
- KindIDCodepointPrefix KindID = 10
- KindIDLBrace KindID = 11
- KindIDRBrace KindID = 12
- KindIDHexDigits KindID = 13
- KindIDEscapedSeq KindID = 14
- KindIDEscapeChar KindID = 15
- KindIDInterpretedStringClose KindID = 16
-)
-
-const (
- KindNameNil = ""
- KindNameWs = "ws"
- KindNameLParen = "l_paren"
- KindNameRParen = "r_paren"
- KindNameIdentifier = "identifier"
- KindNameRawStringOpen = "raw_string_open"
- KindNameInterpretedStringOpen = "interpreted_string_open"
- KindNameRawStringBody = "raw_string_body"
- KindNameRawStringClose = "raw_string_close"
- KindNameInterpretedSeq = "interpreted_seq"
- KindNameCodepointPrefix = "codepoint_prefix"
- KindNameLBrace = "l_brace"
- KindNameRBrace = "r_brace"
- KindNameHexDigits = "hex_digits"
- KindNameEscapedSeq = "escaped_seq"
- KindNameEscapeChar = "escape_char"
- KindNameInterpretedStringClose = "interpreted_string_close"
-)
-
-// KindIDToName converts a kind ID to a name.
-func KindIDToName(id KindID) string {
- switch id {
- case KindIDNil:
- return KindNameNil
- case KindIDWs:
- return KindNameWs
- case KindIDLParen:
- return KindNameLParen
- case KindIDRParen:
- return KindNameRParen
- case KindIDIdentifier:
- return KindNameIdentifier
- case KindIDRawStringOpen:
- return KindNameRawStringOpen
- case KindIDInterpretedStringOpen:
- return KindNameInterpretedStringOpen
- case KindIDRawStringBody:
- return KindNameRawStringBody
- case KindIDRawStringClose:
- return KindNameRawStringClose
- case KindIDInterpretedSeq:
- return KindNameInterpretedSeq
- case KindIDCodepointPrefix:
- return KindNameCodepointPrefix
- case KindIDLBrace:
- return KindNameLBrace
- case KindIDRBrace:
- return KindNameRBrace
- case KindIDHexDigits:
- return KindNameHexDigits
- case KindIDEscapedSeq:
- return KindNameEscapedSeq
- case KindIDEscapeChar:
- return KindNameEscapeChar
- case KindIDInterpretedStringClose:
- return KindNameInterpretedStringClose
- }
- return ""
-}
-
-type lexSpec struct {
- pop [][]bool
- push [][]ModeID
- modeNames []string
- initialStates []StateID
- acceptances [][]ModeKindID
- kindIDs [][]KindID
- kindNames []string
- initialModeID ModeID
- modeIDNil ModeID
- modeKindIDNil ModeKindID
- stateIDNil StateID
-
- rowNums [][]int
- rowDisplacements [][]int
- bounds [][]int
- entries [][]StateID
- originalColCounts []int
-}
-
-func NewLexSpec() *lexSpec {
- return &lexSpec{
- pop: [][]bool{
- nil,
- {
- false, false, false, false, false, false, false,
- },
- {
- false, false, true,
- },
- {
- false, false, false, false, false, false, false, false, true,
- },
- },
- push: [][]ModeID{
- nil,
- {
- 0, 0, 0, 0, 0, 2, 3,
- },
- {
- 0, 0, 0,
- },
- {
- 0, 0, 0, 0, 0, 0, 0, 0, 0,
- },
- },
- modeNames: []string{
- ModeNameNil,
- ModeNameDefault,
- ModeNameRawString,
- ModeNameInterpretedString,
- },
- initialStates: []StateID{
- 0,
- 1,
- 1,
- 1,
- },
- acceptances: [][]ModeKindID{
- nil,
- {
- 0, 0, 1, 4, 2, 3, 5, 6,
- },
- {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2,
- },
- {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7,
- 5, 2, 3, 4, 6, 8,
- },
- },
- kindIDs: [][]KindID{
- nil,
- {
- KindIDNil,
- KindIDWs,
- KindIDLParen,
- KindIDRParen,
- KindIDIdentifier,
- KindIDRawStringOpen,
- KindIDInterpretedStringOpen,
- },
- {
- KindIDNil,
- KindIDRawStringBody,
- KindIDRawStringClose,
- },
- {
- KindIDNil,
- KindIDInterpretedSeq,
- KindIDCodepointPrefix,
- KindIDLBrace,
- KindIDRBrace,
- KindIDHexDigits,
- KindIDEscapedSeq,
- KindIDEscapeChar,
- KindIDInterpretedStringClose,
- },
- },
- kindNames: []string{
- KindNameNil,
- KindNameWs,
- KindNameLParen,
- KindNameRParen,
- KindNameIdentifier,
- KindNameRawStringOpen,
- KindNameInterpretedStringOpen,
- KindNameRawStringBody,
- KindNameRawStringClose,
- KindNameInterpretedSeq,
- KindNameCodepointPrefix,
- KindNameLBrace,
- KindNameRBrace,
- KindNameHexDigits,
- KindNameEscapedSeq,
- KindNameEscapeChar,
- KindNameInterpretedStringClose,
- },
- initialModeID: ModeIDDefault,
- modeIDNil: ModeIDNil,
- modeKindIDNil: 0,
- stateIDNil: 0,
-
- rowNums: [][]int{
- nil,
- {
- 0, 1, 2, 3, 0, 0, 0, 0,
- },
- {
- 0, 1, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 8, 2, 9, 10, 2, 11, 12, 2,
- 13, 2, 14, 2, 15, 2, 16, 2, 17, 2, 18, 19, 2, 20, 21, 2, 22, 23, 2, 0,
- },
- {
- 0, 1, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 8, 2, 9, 10, 2, 11, 12, 2,
- 13, 2, 14, 2, 15, 2, 16, 2, 17, 2, 18, 19, 2, 20, 21, 2, 22, 23, 2, 24,
- 25, 0, 0, 0, 0, 0,
- },
- },
- rowDisplacements: [][]int{
- nil,
- {
- 0, 0, 189, 75,
- },
- {
- 0, 0, 246, 1194, 362, 1258, 426, 1114, 490, 554, 618, 1355, 682, 245, 1259, 746, 1323, 810, 1162, 874,
- 938, 1002, 1371, 1066,
- },
- {
- 0, 0, 246, 1194, 362, 1258, 426, 1114, 490, 554, 618, 1436, 682, 245, 1259, 746, 1323, 810, 1162, 874,
- 938, 1002, 1452, 1066, 1504, 1435,
- },
- },
- bounds: [][]int{
- nil,
- {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1, -1, 1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1, 1, -1, -1, -1, -1, 1,
- 1, 1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1,
- -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, 1, -1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, -1, -1, -1, -1, -1, -1, -1,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, -1, -1, -1, -1, 3, -1, 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2,
- -1, -1, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1,
- },
- {
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, -1, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, -1, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
- 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
- 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
- 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
- 17, 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
- 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 22,
- 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1,
- },
- {
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- 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 0, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 37,
- 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0,
- },
- {
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 45, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 20, 20,
- 20, 20, 20, 20, 20, 40, 40, 40, 40, 40, 40, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 39, 20, 20, 20, 20, 40, 40, 40,
- 40, 40, 40, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 42, 20, 43, 20, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 7, 9, 9,
- 11, 14, 14, 14, 17, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 0,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 20, 20, 20, 20, 20, 20, 20, 0, 0, 0, 0, 0, 0, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 0, 20, 20,
- 20, 20, 0, 0, 0, 0, 0, 0, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 0, 20, 0, 20, 20, 0, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
- 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 0, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
- 24, 24, 26, 28, 28, 30, 33, 33, 33, 36, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
- 13, 13, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
- 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
- 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
- 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 25, 25, 25, 25, 25, 25,
- 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
- 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
- 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
- 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
- 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 38, 38, 38, 38, 38, 38,
- 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
- 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
- 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31,
- 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 0, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
- 27, 27, 27, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 0, 0, 0, 0, 0, 0, 0,
- 40, 40, 40, 40, 40, 40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 40, 40, 40, 40, 40, 40, 44, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 44, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 41, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- },
- },
- originalColCounts: nil,
- }
-}
-
-func (s *lexSpec) InitialMode() ModeID {
- return s.initialModeID
-}
-
-func (s *lexSpec) Pop(mode ModeID, modeKind ModeKindID) bool {
- return s.pop[mode][modeKind]
-}
-
-func (s *lexSpec) Push(mode ModeID, modeKind ModeKindID) (ModeID, bool) {
- id := s.push[mode][modeKind]
- return id, id != s.modeIDNil
-}
-
-func (s *lexSpec) ModeName(mode ModeID) string {
- return s.modeNames[mode]
-}
-
-func (s *lexSpec) InitialState(mode ModeID) StateID {
- return s.initialStates[mode]
-}
-
-func (s *lexSpec) NextState(mode ModeID, state StateID, v int) (StateID, bool) {
- rowNum := s.rowNums[mode][state]
- d := s.rowDisplacements[mode][rowNum]
- if s.bounds[mode][d+v] != rowNum {
- return s.stateIDNil, false
- }
- return s.entries[mode][d+v], true
-}
-
-func (s *lexSpec) Accept(mode ModeID, state StateID) (ModeKindID, bool) {
- id := s.acceptances[mode][state]
- return id, id != s.modeKindIDNil
-}
-
-func (s *lexSpec) KindIDAndName(mode ModeID, modeKind ModeKindID) (KindID, string) {
- id := s.kindIDs[mode][modeKind]
- return id, s.kindNames[id]
-}
diff --git a/spec/test/tree_parser.go b/spec/test/tree_parser.go
deleted file mode 100644
index 528d259..0000000
--- a/spec/test/tree_parser.go
+++ /dev/null
@@ -1,716 +0,0 @@
-// Code generated by vartan-go. DO NOT EDIT.
-package test
-
-import (
- "fmt"
- "io"
-)
-
-type Grammar interface {
- // InitialState returns the initial state of a parser.
- InitialState() int
-
- // StartProduction returns the start production of grammar.
- StartProduction() int
-
- // Action returns an ACTION entry corresponding to a (state, terminal symbol) pair.
- Action(state int, terminal int) int
-
- // GoTo returns a GOTO entry corresponding to a (state, non-terminal symbol) pair.
- GoTo(state int, lhs int) int
-
- // ErrorTrapperState returns true when a state can shift the error symbol.
- ErrorTrapperState(state int) bool
-
- // LHS returns a LHS symbol of a production.
- LHS(prod int) int
-
- // AlternativeSymbolCount returns a symbol count of p production.
- AlternativeSymbolCount(prod int) int
-
- // RecoverProduction returns true when a production has the recover directive.
- RecoverProduction(prod int) bool
-
- // NonTerminal retuns a string representaion of a non-terminal symbol.
- NonTerminal(nonTerminal int) string
-
- // TerminalCount returns a terminal symbol count of grammar.
- TerminalCount() int
-
- // SkipTerminal returns true when a terminal symbol must be skipped on syntax analysis.
- SkipTerminal(terminal int) bool
-
- // EOF returns the EOF symbol.
- EOF() int
-
- // Error returns the error symbol.
- Error() int
-
- // Terminal retuns a string representaion of a terminal symbol.
- Terminal(terminal int) string
-
- // ASTAction returns an AST action entries.
- ASTAction(prod int) []int
-}
-
-type VToken interface {
- // TerminalID returns a terminal ID.
- TerminalID() int
-
- // Lexeme returns a lexeme.
- Lexeme() []byte
-
- // EOF returns true when a token represents EOF.
- EOF() bool
-
- // Invalid returns true when a token is invalid.
- Invalid() bool
-
- // Position returns (row, column) pair.
- Position() (int, int)
-}
-
-type TokenStream interface {
- Next() (VToken, error)
-}
-
-type SyntaxError struct {
- Row int
- Col int
- Message string
- Token VToken
- ExpectedTerminals []string
-}
-
-type ParserOption func(p *Parser) error
-
-// DisableLAC disables LAC (lookahead correction). LAC is enabled by default.
-func DisableLAC() ParserOption {
- return func(p *Parser) error {
- p.disableLAC = true
- return nil
- }
-}
-
-func SemanticAction(semAct SemanticActionSet) ParserOption {
- return func(p *Parser) error {
- p.semAct = semAct
- return nil
- }
-}
-
-type Parser struct {
- toks TokenStream
- gram Grammar
- stateStack *stateStack
- semAct SemanticActionSet
- disableLAC bool
- onError bool
- shiftCount int
- synErrs []*SyntaxError
-}
-
-func NewParser(toks TokenStream, gram Grammar, opts ...ParserOption) (*Parser, error) {
- p := &Parser{
- toks: toks,
- gram: gram,
- stateStack: &stateStack{},
- }
-
- for _, opt := range opts {
- err := opt(p)
- if err != nil {
- return nil, err
- }
- }
-
- return p, nil
-}
-
-func (p *Parser) Parse() error {
- p.stateStack.push(p.gram.InitialState())
- tok, err := p.nextToken()
- if err != nil {
- return err
- }
-
-ACTION_LOOP:
- for {
- act := p.lookupAction(tok)
-
- switch {
- case act < 0: // Shift
- nextState := act * -1
-
- recovered := false
- if p.onError {
- p.shiftCount++
-
- // When the parser performs shift three times, the parser recovers from the error state.
- if p.shiftCount >= 3 {
- p.onError = false
- p.shiftCount = 0
- recovered = true
- }
- }
-
- p.shift(nextState)
-
- if p.semAct != nil {
- p.semAct.Shift(tok, recovered)
- }
-
- tok, err = p.nextToken()
- if err != nil {
- return err
- }
- case act > 0: // Reduce
- prodNum := act
-
- recovered := false
- if p.onError && p.gram.RecoverProduction(prodNum) {
- p.onError = false
- p.shiftCount = 0
- recovered = true
- }
-
- accepted := p.reduce(prodNum)
- if accepted {
- if p.semAct != nil {
- p.semAct.Accept()
- }
-
- return nil
- }
-
- if p.semAct != nil {
- p.semAct.Reduce(prodNum, recovered)
- }
- default: // Error
- if p.onError {
- tok, err = p.nextToken()
- if err != nil {
- return err
- }
- if tok.EOF() {
- if p.semAct != nil {
- p.semAct.MissError(tok)
- }
-
- return nil
- }
-
- continue ACTION_LOOP
- }
-
- row, col := tok.Position()
- p.synErrs = append(p.synErrs, &SyntaxError{
- Row: row,
- Col: col,
- Message: "unexpected token",
- Token: tok,
- ExpectedTerminals: p.searchLookahead(p.stateStack.top()),
- })
-
- count, ok := p.trapError()
- if !ok {
- if p.semAct != nil {
- p.semAct.MissError(tok)
- }
-
- return nil
- }
-
- p.onError = true
- p.shiftCount = 0
-
- act, err := p.lookupActionOnError()
- if err != nil {
- return err
- }
-
- p.shift(act * -1)
-
- if p.semAct != nil {
- p.semAct.TrapAndShiftError(tok, count)
- }
- }
- }
-}
-
-// validateLookahead validates whether `term` is a valid lookahead in the current context. When `term` is valid,
-// this method returns `true`.
-func (p *Parser) validateLookahead(term int) bool {
- p.stateStack.enableExploratoryMode()
- defer p.stateStack.disableExploratoryMode()
-
- for {
- act := p.gram.Action(p.stateStack.topExploratorily(), term)
-
- switch {
- case act < 0: // Shift
- return true
- case act > 0: // Reduce
- prodNum := act
-
- lhs := p.gram.LHS(prodNum)
- if lhs == p.gram.LHS(p.gram.StartProduction()) {
- return true
- }
- n := p.gram.AlternativeSymbolCount(prodNum)
- p.stateStack.popExploratorily(n)
- state := p.gram.GoTo(p.stateStack.topExploratorily(), lhs)
- p.stateStack.pushExploratorily(state)
- default: // Error
- return false
- }
- }
-}
-
-func (p *Parser) nextToken() (VToken, error) {
- for {
- // We don't have to check whether the token is invalid because the kind ID of the invalid token is 0,
- // and the parsing table doesn't have an entry corresponding to the kind ID 0. Thus we can detect
- // a syntax error because the parser cannot find an entry corresponding to the invalid token.
- tok, err := p.toks.Next()
- if err != nil {
- return nil, err
- }
-
- if p.gram.SkipTerminal(tok.TerminalID()) {
- continue
- }
-
- return tok, nil
- }
-}
-
-func (p *Parser) tokenToTerminal(tok VToken) int {
- if tok.EOF() {
- return p.gram.EOF()
- }
-
- return tok.TerminalID()
-}
-
-func (p *Parser) lookupAction(tok VToken) int {
- if !p.disableLAC {
- term := p.tokenToTerminal(tok)
- if !p.validateLookahead(term) {
- return 0
- }
- }
-
- return p.gram.Action(p.stateStack.top(), p.tokenToTerminal(tok))
-}
-
-func (p *Parser) lookupActionOnError() (int, error) {
- act := p.gram.Action(p.stateStack.top(), p.gram.Error())
- if act >= 0 {
- return 0, fmt.Errorf("an entry must be a shift action by the error symbol; entry: %v, state: %v, symbol: %v", act, p.stateStack.top(), p.gram.Terminal(p.gram.Error()))
- }
-
- return act, nil
-}
-
-func (p *Parser) shift(nextState int) {
- p.stateStack.push(nextState)
-}
-
-func (p *Parser) reduce(prodNum int) bool {
- lhs := p.gram.LHS(prodNum)
- if lhs == p.gram.LHS(p.gram.StartProduction()) {
- return true
- }
- n := p.gram.AlternativeSymbolCount(prodNum)
- p.stateStack.pop(n)
- nextState := p.gram.GoTo(p.stateStack.top(), lhs)
- p.stateStack.push(nextState)
- return false
-}
-
-func (p *Parser) trapError() (int, bool) {
- count := 0
- for {
- if p.gram.ErrorTrapperState(p.stateStack.top()) {
- return count, true
- }
-
- if p.stateStack.top() != p.gram.InitialState() {
- p.stateStack.pop(1)
- count++
- } else {
- return 0, false
- }
- }
-}
-
-func (p *Parser) SyntaxErrors() []*SyntaxError {
- return p.synErrs
-}
-
-func (p *Parser) searchLookahead(state int) []string {
- kinds := []string{}
- termCount := p.gram.TerminalCount()
- for term := 0; term < termCount; term++ {
- if p.disableLAC {
- if p.gram.Action(p.stateStack.top(), term) == 0 {
- continue
- }
- } else {
- if !p.validateLookahead(term) {
- continue
- }
- }
-
- // We don't add the error symbol to the look-ahead symbols because users cannot input the error symbol
- // intentionally.
- if term == p.gram.Error() {
- continue
- }
-
- kinds = append(kinds, p.gram.Terminal(term))
- }
-
- return kinds
-}
-
-type stateStack struct {
- items []int
- itemsExp []int
-}
-
-func (s *stateStack) enableExploratoryMode() {
- s.itemsExp = make([]int, len(s.items))
- copy(s.itemsExp, s.items)
-}
-
-func (s *stateStack) disableExploratoryMode() {
- s.itemsExp = nil
-}
-
-func (s *stateStack) top() int {
- return s.items[len(s.items)-1]
-}
-
-func (s *stateStack) topExploratorily() int {
- return s.itemsExp[len(s.itemsExp)-1]
-}
-
-func (s *stateStack) push(state int) {
- s.items = append(s.items, state)
-}
-
-func (s *stateStack) pushExploratorily(state int) {
- s.itemsExp = append(s.itemsExp, state)
-}
-
-func (s *stateStack) pop(n int) {
- s.items = s.items[:len(s.items)-n]
-}
-
-func (s *stateStack) popExploratorily(n int) {
- s.itemsExp = s.itemsExp[:len(s.itemsExp)-n]
-}
-
-type grammarImpl struct {
- recoverProductions []int
- action []int
- goTo []int
- alternativeSymbolCounts []int
- errorTrapperStates []int
- nonTerminals []string
- lhsSymbols []int
- terminals []string
- terminalSkip []int
- astActions [][]int
-}
-
-func NewGrammar() *grammarImpl {
- return &grammarImpl{
- recoverProductions: []int{
- 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0,
- },
- action: []int{
- 0, 0, 0, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- -3, 0, 0, 0, -4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, -5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0,
- -2, 7, 0, -11, 0, 0, -12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 4,
- 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 6,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, -14, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -15, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 12, 12, 0, 0, -17, 12, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, -22, 0, 16, 16, 0, 0, 0, 0, 0, -23,
- -24, -25, -26, -27, -28, -29, 16, 0, 0, 0, 0, 5, 5, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -30, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- -31, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -23, -24, -25, -26, -27, -28, -29, 15,
- 0, 18, 0, 0, 18, 18, 0, 0, 0, 0, 0, 18, 18, 18, 18, 18, 18, 18, 18, 0,
- 25, 0, 0, 25, 25, 0, 0, 0, 0, 0, 25, 25, 25, 25, 25, 25, 25, 25, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -33, 0, 19, 0,
- 0, 19, 19, 0, 0, 0, 0, 0, 19, 19, 19, 19, 19, 19, 19, 19, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, -34, 0, 0, 0, 0, 0, 0, 20, 0, 0, 20,
- 20, 0, 0, 0, 0, 0, 20, 20, 20, 20, 20, 20, 20, 20, 0, 21, 0, 0, 21, 21,
- 0, 0, 0, 0, 0, 21, 21, 21, 21, 21, 21, 21, 21, 0, 22, 0, 0, 22, 22, 0,
- 0, 0, 0, 0, 22, 22, 22, 22, 22, 22, 22, 22, 0, 23, 0, 0, 23, 23, 0, 0,
- 0, 0, 0, 23, 23, 23, 23, 23, 23, 23, 23, 0, 24, 0, 0, 24, 24, 0, 0, 0,
- 0, 0, 24, 24, 24, 24, 24, 24, 24, 24, 0, 10, 0, 0, 10, 10, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 0, 0, 13, 13, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 0, 0, 17, 17, 0, 0, 0, 0, 0, 17,
- 17, 17, 17, 17, 17, 17, 17, 0, 14, 0, 0, 14, 14, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, -35, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -36,
- 0, 0, 0, 0, 0, 26, 0, 0, 26, 26, 0, 0, 0, 0, 0, 26, 26, 26, 26, 26,
- 26, 26, 26,
- },
- goTo: []int{
- 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 7, 8, 9, 0, 10, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 18, 19, 20, 21, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 21,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0,
- },
- alternativeSymbolCounts: []int{
- 0, 1, 4, 4, 3, 2, 1, 0, 1, 1, 3, 1, 0, 3, 3, 1, 0, 2, 1, 1,
- 1, 1, 1, 1, 1, 1, 4,
- },
- errorTrapperStates: []int{
- 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- },
- nonTerminals: []string{
- "",
- "tree'",
- "tree",
- "tree_list",
- "string",
- "raw_string",
- "opt_raw_string_body",
- "interpreted_string",
- "opt_interpreted_string_body",
- "interpreted_string_body",
- "interpreted_string_elem",
- "codepoint_expr",
- },
- lhsSymbols: []int{
- 0, 1, 2, 2, 2, 3, 3, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10,
- 10, 10, 10, 10, 10, 10, 11,
- },
- terminals: []string{
- "",
- "<eof>",
- "error",
- "ws",
- "l_paren",
- "r_paren",
- "identifier",
- "raw_string_open",
- "raw_string_body",
- "raw_string_close",
- "interpreted_string_open",
- "interpreted_seq",
- "codepoint_prefix",
- "l_brace",
- "r_brace",
- "hex_digits",
- "escaped_seq",
- "escape_char",
- "interpreted_string_close",
- },
- terminalSkip: []int{
- 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- },
- astActions: [][]int{
- nil,
- nil,
- {
- 2, -3,
- },
- {
- 2, 3,
- },
- {
- 2,
- },
- {
- -1, 2,
- },
- nil,
- nil,
- nil,
- nil,
- {
- -2,
- },
- nil,
- nil,
- {
- -2,
- },
- {
- 2,
- },
- {
- -1,
- },
- nil,
- {
- -1, -2,
- },
- {
- -1,
- },
- nil,
- nil,
- nil,
- nil,
- nil,
- nil,
- nil,
- {
- 3,
- },
- },
- }
-}
-
-func (g *grammarImpl) InitialState() int {
- return 0
-}
-
-func (g *grammarImpl) StartProduction() int {
- return 1
-}
-
-func (g *grammarImpl) RecoverProduction(prod int) bool {
- return g.recoverProductions[prod] != 0
-}
-
-func (g *grammarImpl) Action(state int, terminal int) int {
- return g.action[state*19+terminal]
-}
-
-func (g *grammarImpl) GoTo(state int, lhs int) int {
- return g.goTo[state*12+lhs]
-}
-
-func (g *grammarImpl) AlternativeSymbolCount(prod int) int {
- return g.alternativeSymbolCounts[prod]
-}
-
-func (g *grammarImpl) TerminalCount() int {
- return 19
-}
-
-func (g *grammarImpl) SkipTerminal(terminal int) bool {
- return g.terminalSkip[terminal] == 1
-}
-
-func (g *grammarImpl) ErrorTrapperState(state int) bool {
- return g.errorTrapperStates[state] != 0
-}
-
-func (g *grammarImpl) NonTerminal(nonTerminal int) string {
- return g.nonTerminals[nonTerminal]
-}
-
-func (g *grammarImpl) LHS(prod int) int {
- return g.lhsSymbols[prod]
-}
-
-func (g *grammarImpl) EOF() int {
- return 1
-}
-
-func (g *grammarImpl) Error() int {
- return 2
-}
-
-func (g *grammarImpl) Terminal(terminal int) string {
- return g.terminals[terminal]
-}
-
-func (g *grammarImpl) ASTAction(prod int) []int {
- return g.astActions[prod]
-}
-
-type vToken struct {
- terminalID int
- tok *Token
-}
-
-func (t *vToken) TerminalID() int {
- return t.terminalID
-}
-
-func (t *vToken) Lexeme() []byte {
- return t.tok.Lexeme
-}
-
-func (t *vToken) EOF() bool {
- return t.tok.EOF
-}
-
-func (t *vToken) Invalid() bool {
- return t.tok.Invalid
-}
-
-func (t *vToken) Position() (int, int) {
- return t.tok.Row, t.tok.Col
-}
-
-var kindToTerminal = []int{
- 0, 3, 4, 5, 6, 7, 10, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18,
-}
-
-type tokenStream struct {
- lex *Lexer
- kindToTerminal []int
-}
-
-func NewTokenStream(src io.Reader) (*tokenStream, error) {
- lex, err := NewLexer(NewLexSpec(), src)
- if err != nil {
- return nil, err
- }
-
- return &tokenStream{
- lex: lex,
- }, nil
-}
-
-func (t *tokenStream) Next() (VToken, error) {
- tok, err := t.lex.Next()
- if err != nil {
- return nil, err
- }
- return &vToken{
- terminalID: kindToTerminal[tok.KindID],
- tok: tok,
- }, nil
-}
diff --git a/spec/test/tree_semantic_action.go b/spec/test/tree_semantic_action.go
deleted file mode 100644
index c1d5a25..0000000
--- a/spec/test/tree_semantic_action.go
+++ /dev/null
@@ -1,367 +0,0 @@
-// Code generated by vartan-go. DO NOT EDIT.
-package test
-
-import (
- "encoding/json"
- "fmt"
- "io"
- "strconv"
-)
-
-// SemanticActionSet is a set of semantic actions a parser calls.
-type SemanticActionSet interface {
- // Shift runs when the parser shifts a symbol onto a state stack. `tok` is a token corresponding to the symbol.
- // When the parser recovered from an error state by shifting the token, `recovered` is true.
- Shift(tok VToken, recovered bool)
-
- // Reduce runs when the parser reduces an RHS of a production to its LHS. `prodNum` is a number of the production.
- // When the parser recovered from an error state by reducing the production, `recovered` is true.
- Reduce(prodNum int, recovered bool)
-
- // Accept runs when the parser accepts an input.
- Accept()
-
- // TrapAndShiftError runs when the parser traps a syntax error and shifts a error symbol onto the state stack.
- // `cause` is a token that caused a syntax error. `popped` is the number of frames that the parser discards
- // from the state stack.
- // Unlike `Shift` function, this function doesn't take a token to be shifted as an argument because a token
- // corresponding to the error symbol doesn't exist.
- TrapAndShiftError(cause VToken, popped int)
-
- // MissError runs when the parser fails to trap a syntax error. `cause` is a token that caused a syntax error.
- MissError(cause VToken)
-}
-
-var _ SemanticActionSet = &SyntaxTreeActionSet{}
-
-// SyntaxTreeNode is a node of a syntax tree. A node type used in SyntaxTreeActionSet must implement SyntaxTreeNode interface.
-type SyntaxTreeNode interface {
- // ChildCount returns a child count of a node. A parser calls this method to know the child count to be expanded by an `#ast`
- // directive with `...` operator.
- ChildCount() int
-
- // ExpandChildren returns children of a node. A parser calls this method to fetch the children to be expanded by an `#ast`
- // directive with `...` operator.
- ExpandChildren() []SyntaxTreeNode
-}
-
-var _ SyntaxTreeNode = &Node{}
-
-// SyntaxTreeBuilder allows you to construct a syntax tree containing arbitrary user-defined node types.
-// The parser uses SyntaxTreeBuilder interface as a part of semantic actions via SyntaxTreeActionSet interface.
-type SyntaxTreeBuilder interface {
- Shift(kindName string, text string, row, col int) SyntaxTreeNode
- ShiftError(kindName string) SyntaxTreeNode
- Reduce(kindName string, children []SyntaxTreeNode) SyntaxTreeNode
- Accept(f SyntaxTreeNode)
-}
-
-var _ SyntaxTreeBuilder = &DefaulSyntaxTreeBuilder{}
-
-// DefaulSyntaxTreeBuilder is a implementation of SyntaxTreeBuilder.
-type DefaulSyntaxTreeBuilder struct {
- tree *Node
-}
-
-// NewDefaultSyntaxTreeBuilder returns a new DefaultSyntaxTreeBuilder.
-func NewDefaultSyntaxTreeBuilder() *DefaulSyntaxTreeBuilder {
- return &DefaulSyntaxTreeBuilder{}
-}
-
-// Shift is a implementation of SyntaxTreeBuilder.Shift.
-func (b *DefaulSyntaxTreeBuilder) Shift(kindName string, text string, row, col int) SyntaxTreeNode {
- return &Node{
- Type: NodeTypeTerminal,
- KindName: kindName,
- Text: text,
- Row: row,
- Col: col,
- }
-}
-
-// ShiftError is a implementation of SyntaxTreeBuilder.ShiftError.
-func (b *DefaulSyntaxTreeBuilder) ShiftError(kindName string) SyntaxTreeNode {
- return &Node{
- Type: NodeTypeError,
- KindName: kindName,
- }
-}
-
-// Reduce is a implementation of SyntaxTreeBuilder.Reduce.
-func (b *DefaulSyntaxTreeBuilder) Reduce(kindName string, children []SyntaxTreeNode) SyntaxTreeNode {
- cNodes := make([]*Node, len(children))
- for i, c := range children {
- cNodes[i] = c.(*Node)
- }
- return &Node{
- Type: NodeTypeNonTerminal,
- KindName: kindName,
- Children: cNodes,
- }
-}
-
-// Accept is a implementation of SyntaxTreeBuilder.Accept.
-func (b *DefaulSyntaxTreeBuilder) Accept(f SyntaxTreeNode) {
- b.tree = f.(*Node)
-}
-
-// Tree returns a syntax tree when the parser has accepted an input. If a syntax error occurs, the return value is nil.
-func (b *DefaulSyntaxTreeBuilder) Tree() *Node {
- return b.tree
-}
-
-// SyntaxTreeActionSet is a implementation of SemanticActionSet interface and constructs a syntax tree.
-type SyntaxTreeActionSet struct {
- gram Grammar
- builder SyntaxTreeBuilder
- semStack *semanticStack
- disableASTAction bool
-}
-
-// NewASTActionSet returns a new SyntaxTreeActionSet that constructs an AST (Abstract Syntax Tree).
-// When grammar `gram` contains `#ast` directives, the new SyntaxTreeActionSet this function returns interprets them.
-func NewASTActionSet(gram Grammar, builder SyntaxTreeBuilder) *SyntaxTreeActionSet {
- return &SyntaxTreeActionSet{
- gram: gram,
- builder: builder,
- semStack: newSemanticStack(),
- }
-}
-
-// NewCSTTActionSet returns a new SyntaxTreeActionSet that constructs a CST (Concrete Syntax Tree).
-// Even if grammar `gram` contains `#ast` directives, the new SyntaxTreeActionSet this function returns ignores them.
-func NewCSTActionSet(gram Grammar, builder SyntaxTreeBuilder) *SyntaxTreeActionSet {
- return &SyntaxTreeActionSet{
- gram: gram,
- builder: builder,
- semStack: newSemanticStack(),
- disableASTAction: true,
- }
-}
-
-// Shift is a implementation of SemanticActionSet.Shift method.
-func (a *SyntaxTreeActionSet) Shift(tok VToken, recovered bool) {
- term := a.tokenToTerminal(tok)
- row, col := tok.Position()
- a.semStack.push(a.builder.Shift(a.gram.Terminal(term), string(tok.Lexeme()), row, col))
-}
-
-// Reduce is a implementation of SemanticActionSet.Reduce method.
-func (a *SyntaxTreeActionSet) Reduce(prodNum int, recovered bool) {
- lhs := a.gram.LHS(prodNum)
-
- // When an alternative is empty, `n` will be 0, and `handle` will be empty slice.
- n := a.gram.AlternativeSymbolCount(prodNum)
- handle := a.semStack.pop(n)
-
- var astAct []int
- if !a.disableASTAction {
- astAct = a.gram.ASTAction(prodNum)
- }
- var children []SyntaxTreeNode
- if astAct != nil {
- // Count the number of children in advance to avoid frequent growth in a slice for children.
- {
- l := 0
- for _, e := range astAct {
- if e > 0 {
- l++
- } else {
- offset := e*-1 - 1
- l += handle[offset].ChildCount()
- }
- }
-
- children = make([]SyntaxTreeNode, l)
- }
-
- p := 0
- for _, e := range astAct {
- if e > 0 {
- offset := e - 1
- children[p] = handle[offset]
- p++
- } else {
- offset := e*-1 - 1
- for _, c := range handle[offset].ExpandChildren() {
- children[p] = c
- p++
- }
- }
- }
- } else {
- // If an alternative has no AST action, a driver generates
- // a node with the same structure as a CST.
- children = handle
- }
-
- a.semStack.push(a.builder.Reduce(a.gram.NonTerminal(lhs), children))
-}
-
-// Accept is a implementation of SemanticActionSet.Accept method.
-func (a *SyntaxTreeActionSet) Accept() {
- top := a.semStack.pop(1)
- a.builder.Accept(top[0])
-}
-
-// TrapAndShiftError is a implementation of SemanticActionSet.TrapAndShiftError method.
-func (a *SyntaxTreeActionSet) TrapAndShiftError(cause VToken, popped int) {
- a.semStack.pop(popped)
- a.semStack.push(a.builder.ShiftError(a.gram.Terminal(a.gram.Error())))
-}
-
-// MissError is a implementation of SemanticActionSet.MissError method.
-func (a *SyntaxTreeActionSet) MissError(cause VToken) {
-}
-
-func (a *SyntaxTreeActionSet) tokenToTerminal(tok VToken) int {
- if tok.EOF() {
- return a.gram.EOF()
- }
-
- return tok.TerminalID()
-}
-
-type semanticStack struct {
- frames []SyntaxTreeNode
-}
-
-func newSemanticStack() *semanticStack {
- return &semanticStack{
- frames: make([]SyntaxTreeNode, 0, 100),
- }
-}
-
-func (s *semanticStack) push(f SyntaxTreeNode) {
- s.frames = append(s.frames, f)
-}
-
-func (s *semanticStack) pop(n int) []SyntaxTreeNode {
- fs := s.frames[len(s.frames)-n:]
- s.frames = s.frames[:len(s.frames)-n]
-
- return fs
-}
-
-type NodeType int
-
-const (
- NodeTypeError = 0
- NodeTypeTerminal = 1
- NodeTypeNonTerminal = 2
-)
-
-// Node is a implementation of SyntaxTreeNode interface.
-type Node struct {
- Type NodeType
- KindName string
- Text string
- Row int
- Col int
- Children []*Node
-}
-
-func (n *Node) MarshalJSON() ([]byte, error) {
- switch n.Type {
- case NodeTypeError:
- return json.Marshal(struct {
- Type NodeType `json:"type"`
- KindName string `json:"kind_name"`
- }{
- Type: n.Type,
- KindName: n.KindName,
- })
- case NodeTypeTerminal:
- if n.KindName == "" {
- return json.Marshal(struct {
- Type NodeType `json:"type"`
- Text string `json:"text"`
- Row int `json:"row"`
- Col int `json:"col"`
- }{
- Type: n.Type,
- Text: n.Text,
- Row: n.Row,
- Col: n.Col,
- })
- }
- return json.Marshal(struct {
- Type NodeType `json:"type"`
- KindName string `json:"kind_name"`
- Text string `json:"text"`
- Row int `json:"row"`
- Col int `json:"col"`
- }{
- Type: n.Type,
- KindName: n.KindName,
- Text: n.Text,
- Row: n.Row,
- Col: n.Col,
- })
- case NodeTypeNonTerminal:
- return json.Marshal(struct {
- Type NodeType `json:"type"`
- KindName string `json:"kind_name"`
- Children []*Node `json:"children"`
- }{
- Type: n.Type,
- KindName: n.KindName,
- Children: n.Children,
- })
- default:
- return nil, fmt.Errorf("invalid node type: %v", n.Type)
- }
-}
-
-// ChildCount is a implementation of SyntaxTreeNode.ChildCount.
-func (n *Node) ChildCount() int {
- return len(n.Children)
-}
-
-// ExpandChildren is a implementation of SyntaxTreeNode.ExpandChildren.
-func (n *Node) ExpandChildren() []SyntaxTreeNode {
- fs := make([]SyntaxTreeNode, len(n.Children))
- for i, n := range n.Children {
- fs[i] = n
- }
- return fs
-}
-
-// PrintTree prints a syntax tree whose root is `node`.
-func PrintTree(w io.Writer, node *Node) {
- printTree(w, node, "", "")
-}
-
-func printTree(w io.Writer, node *Node, ruledLine string, childRuledLinePrefix string) {
- if node == nil {
- return
- }
-
- switch node.Type {
- case NodeTypeError:
- fmt.Fprintf(w, "%v%v\n", ruledLine, node.KindName)
- case NodeTypeTerminal:
- fmt.Fprintf(w, "%v%v %v\n", ruledLine, node.KindName, strconv.Quote(node.Text))
- case NodeTypeNonTerminal:
- fmt.Fprintf(w, "%v%v\n", ruledLine, node.KindName)
-
- num := len(node.Children)
- for i, child := range node.Children {
- var line string
- if num > 1 && i < num-1 {
- line = "├─ "
- } else {
- line = "└─ "
- }
-
- var prefix string
- if i >= num-1 {
- prefix = " "
- } else {
- prefix = "│ "
- }
-
- printTree(w, child, childRuledLinePrefix+line, childRuledLinePrefix+prefix)
- }
- }
-}
generated by cgit v1.2.3 (git 2.49.0) at 2025-07-21 17:48:10 +0000