249 exit_regerror(int er, regex_t *re, const char *source)  in exit_regerror()  argument
254 	errlen = regerror(er, re, NULL, 0);  in exit_regerror()
257 	regerror(er, re, errbuf, errlen);  in exit_regerror()
280 add_sub(int n, const char *string, regex_t *re, regmatch_t *pm)  in add_sub()  argument
282 	if (n > (int)re->re_nsub)  in add_sub()
297 add_replace(const char *string, regex_t *re, const char *replace, regmatch_t *pm)  in add_replace()  argument
303 			add_sub(0, string, re, pm);  in add_replace()
314 					add_sub(0, string, re, pm);  in add_replace()
321 				add_sub(*(++p) - '0', string, re, pm);  in add_replace()
330 do_subst(const char *string, regex_t *re, const char *source,  in do_subst()  argument
337 	while ((error = regexec(re, string, re->re_nsub+1, pm, flags)) == 0) {  in do_subst()
362 		add_replace(string, re, replace, pm);  in do_subst()
366 		exit_regerror(error, re, source);  in do_subst()
371 do_regexp(const char *string, regex_t *re, const char *source,  in do_regexp()  argument
376 	switch(error = regexec(re, string, re->re_nsub+1, pm, 0)) {  in do_regexp()
378 		add_replace(string, re, replace, pm);  in do_regexp()
384 		exit_regerror(error, re, source);  in do_regexp()
389 do_regexpindex(const char *string, regex_t *re, const char *source,  in do_regexpindex()  argument
394 	switch(error = regexec(re, string, re->re_nsub+1, pm, 0)) {  in do_regexpindex()
402 		exit_regerror(error, re, source);  in do_regexpindex()
483 		regex_t re;  in dopatsubst()  local
495 		error = regcomp(&re, source, mode);  in dopatsubst()
497 			exit_regerror(error, &re, source);  in dopatsubst()
499 		pmatch = xreallocarray(NULL, re.re_nsub+1, sizeof(regmatch_t),  in dopatsubst()
501 		do_subst(argv[2], &re, source,  in dopatsubst()
504 		regfree(&re);  in dopatsubst()
513 	regex_t re;  in doregexp()  local
529 	error = regcomp(&re, source, REG_EXTENDED|REG_NEWLINE);  in doregexp()
531 		exit_regerror(error, &re, source);  in doregexp()
533 	pmatch = xreallocarray(NULL, re.re_nsub+1, sizeof(regmatch_t), NULL);  in doregexp()
535 		do_regexpindex(argv[2], &re, source, pmatch);  in doregexp()
537 		do_regexp(argv[2], &re, source, argv[4], pmatch);  in doregexp()
539 	regfree(&re);  in doregexp()