forked from aniani/gmnisrv
7e8a953794
All this does is parse the regexes out of the config file. I've vendored libregexp from Bellard's quickjs project, because it's reasonably small and self-contained, and POSIX regexes don't support captures. We're eventually going to want captures for URL rewrites, so this'll do for now.
59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/*
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* Regular Expression Engine
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*
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* Copyright (c) 2017-2018 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifdef DEF
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DEF(invalid, 1) /* never used */
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DEF(char, 3)
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DEF(char32, 5)
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DEF(dot, 1)
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DEF(any, 1) /* same as dot but match any character including line terminator */
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DEF(line_start, 1)
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DEF(line_end, 1)
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DEF(goto, 5)
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DEF(split_goto_first, 5)
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DEF(split_next_first, 5)
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DEF(match, 1)
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DEF(save_start, 2) /* save start position */
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DEF(save_end, 2) /* save end position, must come after saved_start */
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DEF(save_reset, 3) /* reset save positions */
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DEF(loop, 5) /* decrement the top the stack and goto if != 0 */
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DEF(push_i32, 5) /* push integer on the stack */
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DEF(drop, 1)
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DEF(word_boundary, 1)
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DEF(not_word_boundary, 1)
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DEF(back_reference, 2)
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DEF(backward_back_reference, 2) /* must come after back_reference */
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DEF(range, 3) /* variable length */
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DEF(range32, 3) /* variable length */
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DEF(lookahead, 5)
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DEF(negative_lookahead, 5)
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DEF(push_char_pos, 1) /* push the character position on the stack */
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DEF(bne_char_pos, 5) /* pop one stack element and jump if equal to the character
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position */
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DEF(prev, 1) /* go to the previous char */
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DEF(simple_greedy_quant, 17)
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#endif /* DEF */
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