diff options
| -rw-r--r-- | compiler/parser.go | 4 | ||||
| -rw-r--r-- | driver/lexer_test.go | 16 |
2 files changed, 20 insertions, 0 deletions
diff --git a/compiler/parser.go b/compiler/parser.go index d64b79c..5d1a38d 100644 --- a/compiler/parser.go +++ b/compiler/parser.go @@ -652,6 +652,10 @@ func genNormalCharAST(c rune) astNode { } func exclude(symbol, base astNode) astNode { + if alt, ok := symbol.(*altNode); ok { + return exclude(alt.right, exclude(alt.left, base)) + } + switch base.(type) { case *altNode: left, right := base.children() diff --git a/driver/lexer_test.go b/driver/lexer_test.go index 36a3e31..275e992 100644 --- a/driver/lexer_test.go +++ b/driver/lexer_test.go @@ -756,6 +756,22 @@ func TestLexer_Next(t *testing.T) { newEOFTokenDefault(), }, }, + // Character properties are available in a bracket expression. + { + lspec: &spec.LexSpec{ + Name: "test", + Entries: []*spec.LexEntry{ + newLexEntryDefaultNOP("letter", `[\p{Letter}]+`), + newLexEntryDefaultNOP("non_letter", `[^\p{Letter}]+`), + }, + }, + src: `foo123`, + tokens: []*Token{ + newTokenDefault(1, 1, []byte(`foo`)), + newTokenDefault(2, 2, []byte(`123`)), + newEOFTokenDefault(), + }, + }, } for i, tt := range test { for compLv := compiler.CompressionLevelMin; compLv <= compiler.CompressionLevelMax; compLv++ { |