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Lines Matching defs:lex

531 static int lex_init(struct lexer *lex, const char *in, size_t in_len)
536     lex->p = in;
537     lex->term_end = in;
538     lex->end = in + in_len;
542 static int lex_do(struct lexer *lex)
544     const char *p = lex->term_end, *end = lex->end, *term_end;
550         lex->p = end;
551         lex->term_end = end;
558     lex->p = p;
559     lex->term_end = term_end;
563 static int lex_eot(struct lexer *lex)
565     return lex->p == lex->term_end;
568 static int lex_peek_char(struct lexer *lex)
570     return lex_eot(lex) ? -1 : *lex->p;
573 static int lex_skip_char(struct lexer *lex)
575     if (lex_eot(lex))
578     ++lex->p;
582 static int lex_match(struct lexer *lex, const char *s, size_t s_len)
584     if ((size_t)(lex->term_end - lex->p) != s_len)
587     if (memcmp(lex->p, s, s_len))
593 static void lex_get_rest(struct lexer *lex, const char **str, size_t *str_l)
595     *str = lex->p;
596     *str_l = lex->term_end - lex->p;
599 static int lex_extract_to(struct lexer *lex, char c,
602     const char *p = lex->p, *term_end = lex->term_end, *s;
611     lex->p = ++s;
653 static int lex_fail(struct lexer *lex
659     lex->p = lex->term_end = lex->end;
686     struct lexer lex = { 0 };
694     if (!lex_init(&lex, filter, strlen(filter)))
697     while (lex_do(&lex)) {
698         c = lex_peek_char(&lex);
701             lex_skip_char(&lex);
703             c = lex_peek_char(&lex);
705                 return lex_fail(&lex, "expected alphanumeric name or '*'"
708             return lex_fail(&lex, "expected +/- or alphanumeric name or '*'");
713         if (lex_match(&lex, "*", 1)) {
718         if (!lex_extract_to(&lex, ':', &cat, &cat_l))
719             return lex_fail(&lex, "expected ':' after category name");
721         lex_get_rest(&lex, &event, &event_l);
723             return lex_fail(&lex, "expected alphanumeric category name or '*'");
725             return lex_fail(&lex, "expected alphanumeric event name or '*'");