Cross Reference: /src/external/bsd/less/dist/pattern.c

Lines Matching refs:pattern
1 /*	$NetBSD: pattern.c,v 1.4 2023/10/06 05:49:49 simonb Exp $	*/
13  * Routines to do pattern matching.
23  * Compile a search pattern, for future use by match_pattern.
25 static int compile_pattern2(char *pattern, int search_type, PATTERN_TYPE *comp_pattern, int show_error)
34 	if (re_compile_pattern(pattern, strlen(pattern), comp))
38 			error("Invalid pattern", NULL_PARG);
50 	if (regcomp(comp, pattern, REGCOMP_FLAG | (is_caseless ? REG_ICASE : 0)))
54 			error("Invalid pattern", NULL_PARG);
68 	pcre *comp = pcre_compile(pattern,
85 	pcre2_code *comp = pcre2_compile((PCRE2_SPTR)pattern, strlen(pattern),
103 	if ((parg.p_string = re_comp(pattern)) != NULL)
113 	if ((comp = regcmp(pattern, 0)) == NULL)
116 			error("Invalid pattern", NULL_PARG);
126 	comp = regcomp(pattern);
145  * Like compile_pattern2, but convert the pattern to lowercase if necessary.
147 public int compile_pattern(char *pattern, int search_type, int show_error, PATTERN_TYPE *comp_pattern)
153 		cvt_pattern = pattern;
156 		cvt_pattern = (char*) ecalloc(1, cvt_length(strlen(pattern), CVT_TO_LC));
157 		cvt_text(cvt_pattern, pattern, (int *)NULL, (int *)NULL, CVT_TO_LC);
160 	if (cvt_pattern != pattern)
166  * Forget that we have a compiled pattern.
168 public void uncompile_pattern(PATTERN_TYPE *pattern)
171 	if (*pattern != NULL)
173 		regfree(*pattern);
174 		free(*pattern);
176 	*pattern = NULL;
179 	if (*pattern != NULL)
181 		regfree(*pattern);
182 		free(*pattern);
184 	*pattern = NULL;
187 	if (*pattern != NULL)
188 		pcre_free(*pattern);
189 	*pattern = NULL;
192 	if (*pattern != NULL)
193 		pcre2_code_free(*pattern);
194 	*pattern = NULL;
197 	*pattern = 0;
200 	if (*pattern != NULL)
201 		free(*pattern);
202 	*pattern = NULL;
205 	if (*pattern != NULL)
206 		free(*pattern);
207 	*pattern = NULL;
213  * Can a pattern be successfully compiled?
215 public int valid_pattern(char *pattern)
221 	result = compile_pattern2(pattern, 0, &comp_pattern, 0);
230  * Is a compiled pattern null?
232 public int is_null_pattern(PATTERN_TYPE pattern)
235 	return (pattern == NULL);
238 	return (pattern == NULL);
241 	return (pattern == NULL);
244 	return (pattern == NULL);
247 	return (pattern == 0);
250 	return (pattern == NULL);
253 	return (pattern == NULL);
256 	return (pattern == NULL);
260  * Simple pattern matching function.
263 static int match(char *pattern, int pattern_len, char *buf, int buf_len, char ***sp, char ***ep, int nsubs)
266 	char *pattern_end = pattern + pattern_len;
271 		for (pp = pattern, lp = buf;  ;  pp++, lp++)
294  * Perform a pattern match with the previously compiled pattern.
299 static int match_pattern1(PATTERN_TYPE pattern, char *tpattern, char *line, int line_len, char **sp, char **ep, int nsp, int notbol, int search_type)
313 		pattern->not_bol = notbol;
314 		pattern->regs_allocated = REGS_UNALLOCATED;
315 		matched = re_search(pattern, line, line_len, 0, line_len, &search_regs) >= 0;
333 		matched = !regexec(pattern, line, RM_COUNT, rm, flags);
369 		int mcount = pcre_exec(pattern, NULL, line, line_len,
392 		int mcount = pcre2_match(pattern, (PCRE2_SPTR)line, line_len,
424 	matched = ((*ep++ = regex(pattern, line)) != NULL);
430 	matched = regexec2(pattern, line, notbol);
432 	matched = regexec(pattern, line);
436 		*sp++ = pattern->startp[0];
437 		*ep++ = pattern->endp[0];
447 public int match_pattern(PATTERN_TYPE pattern, char *tpattern, char *line, int line_len, char **sp, char **ep, int nsp, int notbol, int search_type)
449 	int matched = match_pattern1(pattern, tpattern, line, line_len, sp, ep, nsp, notbol, search_type);
460  * Return the name of the pattern matching library.
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