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Ioan CHIRIAC edited this page Aug 4, 2014
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- setInput: resets the lexer, sets new input
- input: consumes and returns one char from the input
- unput: unshifts one char (or a string) into the input
- more: When called from action, caches matched text and appends it on next action
- reject: When called from action, signals the lexer that this rule fails to match the input, so the next matching rule (regex) should be tested instead.
- less: retain first n characters of the match
- pastInput: displays already matched input, i.e. for error messages
- upcomingInput: displays upcoming input, i.e. for error messages
- showPosition: displays the character position where the lexing error occurred, i.e. for error messages
- test_match: test the lexed token: return FALSE when not a match, otherwise return token
- next: return next match in input
- lex: return next match that has a token
- begin: activates a new lexer condition state (pushes the new lexer condition state onto the condition stack)
- popState: pop the previously active lexer condition state off the condition stack
- _currentRules: produce the lexer rule set which is active for the currently active lexer condition state
- topState: return the currently active lexer condition state; when an index argument is provided it produces the N-th previous condition state, if available
- pushState: alias for begin(condition)
- stateStackSize: return the number of states currently on the stack