Enum regex_syntax::ErrorKind
+
+ [−]
+
+ [src]
+pub enum ErrorKind {
+ DoubleFlagNegation,
+ DuplicateCaptureName(String),
+ EmptyAlternate,
+ EmptyCaptureName,
+ EmptyFlagNegation,
+ EmptyGroup,
+ InvalidBase10(String),
+ InvalidBase16(String),
+ InvalidCaptureName(String),
+ InvalidClassRange {
+ start: char,
+ end: char,
+ },
+ InvalidClassEscape(Expr),
+ InvalidRepeatRange {
+ min: u32,
+ max: u32,
+ },
+ InvalidScalarValue(u32),
+ MissingBase10,
+ RepeaterExpectsExpr,
+ RepeaterUnexpectedExpr(Expr),
+ UnclosedCaptureName(String),
+ UnclosedHex,
+ UnclosedParen,
+ UnclosedRepeat,
+ UnclosedUnicodeName,
+ UnexpectedClassEof,
+ UnexpectedEscapeEof,
+ UnexpectedFlagEof,
+ UnexpectedTwoDigitHexEof,
+ UnopenedParen,
+ UnrecognizedEscape(char),
+ UnrecognizedFlag(char),
+ UnrecognizedUnicodeClass(String),
+ // some variants omitted
+}The specific type of parse error that can occur.
+Variants
+DoubleFlagNegation | A negation symbol is used twice in flag settings.
+e.g., | ||||
DuplicateCaptureName | The same capture name was used more than once.
+e.g., | ||||
EmptyAlternate | An alternate is empty. e.g., | ||||
EmptyCaptureName | A capture group name is empty. e.g., | ||||
EmptyFlagNegation | A negation symbol was not proceded by any flags. e.g., | ||||
EmptyGroup | A group is empty. e.g., | ||||
InvalidBase10 | An invalid number was used in a counted repetition. e.g., | ||||
InvalidBase16 | An invalid hexadecimal number was used in an escape sequence.
+e.g., | ||||
InvalidCaptureName | An invalid capture name was used. e.g., | ||||
InvalidClassRange | An invalid class range was givien. Specifically, when the start of the
+range is greater than the end. e.g., Fields+ +
| ||||
InvalidClassEscape | An escape sequence was used in a character class where it is not
+allowed. e.g., | ||||
InvalidRepeatRange | An invalid counted repetition min/max was given. e.g., Fields+ +
| ||||
InvalidScalarValue | An invalid Unicode scalar value was used in a long hexadecimal
+sequence. e.g., | ||||
MissingBase10 | An empty counted repetition operator. e.g., | ||||
RepeaterExpectsExpr | A repetition operator was not applied to an expression. e.g., | ||||
RepeaterUnexpectedExpr | A repetition operator was applied to an expression that cannot be
+repeated. e.g., | ||||
UnclosedCaptureName | A capture group name that is never closed. e.g., | ||||
UnclosedHex | An unclosed hexadecimal literal. e.g., | ||||
UnclosedParen | An unclosed parenthesis. e.g., | ||||
UnclosedRepeat | An unclosed counted repetition operator. e.g., | ||||
UnclosedUnicodeName | An unclosed named Unicode class. e.g., | ||||
UnexpectedClassEof | Saw end of regex before class was closed. e.g., | ||||
UnexpectedEscapeEof | Saw end of regex before escape sequence was closed. e.g., | ||||
UnexpectedFlagEof | Saw end of regex before flags were closed. e.g., | ||||
UnexpectedTwoDigitHexEof | Saw end of regex before two hexadecimal digits were seen. e.g., | ||||
UnopenedParen | Unopened parenthesis. e.g., | ||||
UnrecognizedEscape | Unrecognized escape sequence. e.g., | ||||
UnrecognizedFlag | Unrecognized flag. e.g., | ||||
UnrecognizedUnicodeClass | Unrecognized named Unicode class. e.g., |