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47 lines
970 B
C
47 lines
970 B
C
/* copyright (c) 2022 grunfink - MIT license */
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#ifndef _XS_REGEX_H
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#define _XS_REGEX_H
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d_char *xs_regex_match(char *str, char *rx, int count);
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#define xs_regex_matchall(str, rx) xs_regex_match(str, rx, 0xfffffff)
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#ifdef XS_IMPLEMENTATION
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#include <regex.h>
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d_char *xs_regex_match(char *str, char *rx, int count)
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/* returns a list with upto count matches */
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{
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regex_t re;
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regmatch_t rm;
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d_char *list = NULL;
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int offset = 0;
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char *p;
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if (regcomp(&re, rx, REG_EXTENDED))
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return NULL;
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list = xs_list_new();
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while (count > 0 && !regexec(&re, (p = str + offset), 1, &rm, offset > 0 ? REG_NOTBOL : 0)) {
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/* add the first part */
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list = xs_list_append_m(list, p + rm.rm_so, rm.rm_eo - rm.rm_so);
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/* add the asciiz */
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list = xs_str_cat(list, "");
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offset += rm.rm_eo;
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count--;
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}
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regfree(&re);
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return list;
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}
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#endif /* XS_IMPLEMENTATION */
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#endif /* XS_REGEX_H */
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