blob: be81da49309a8e3431921070076d68d43041b3bc (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
package parser
import "fmt"
var (
ParseErr = fmt.Errorf("parse error")
// lexical errors
synErrIncompletedEscSeq = fmt.Errorf("incompleted escape sequence; unexpected EOF following \\")
synErrInvalidEscSeq = fmt.Errorf("invalid escape sequence")
synErrInvalidCodePoint = fmt.Errorf("code points must consist of just 4 or 6 hex digits")
synErrCharPropInvalidSymbol = fmt.Errorf("invalid character property symbol")
SynErrFragmentInvalidSymbol = fmt.Errorf("invalid fragment symbol")
// syntax errors
synErrUnexpectedToken = fmt.Errorf("unexpected token")
synErrNullPattern = fmt.Errorf("a pattern must be a non-empty byte sequence")
synErrUnmatchablePattern = fmt.Errorf("a pattern cannot match any characters")
synErrAltLackOfOperand = fmt.Errorf("an alternation expression must have operands")
synErrRepNoTarget = fmt.Errorf("a repeat expression must have an operand")
synErrGroupNoElem = fmt.Errorf("a grouping expression must include at least one character")
synErrGroupUnclosed = fmt.Errorf("unclosed grouping expression")
synErrGroupNoInitiator = fmt.Errorf(") needs preceding (")
synErrGroupInvalidForm = fmt.Errorf("invalid grouping expression")
synErrBExpNoElem = fmt.Errorf("a bracket expression must include at least one character")
synErrBExpUnclosed = fmt.Errorf("unclosed bracket expression")
synErrBExpInvalidForm = fmt.Errorf("invalid bracket expression")
synErrRangeInvalidOrder = fmt.Errorf("a range expression with invalid order")
synErrRangePropIsUnavailable = fmt.Errorf("a property expression is unavailable in a range expression")
synErrRangeInvalidForm = fmt.Errorf("invalid range expression")
synErrCPExpInvalidForm = fmt.Errorf("invalid code point expression")
synErrCPExpOutOfRange = fmt.Errorf("a code point must be between U+0000 to U+10FFFF")
synErrCharPropExpInvalidForm = fmt.Errorf("invalid character property expression")
synErrCharPropUnsupported = fmt.Errorf("unsupported character property")
synErrFragmentExpInvalidForm = fmt.Errorf("invalid fragment expression")
)
|
