re.c File Reference

Regexp and regexp substitutions implementations. More...

#include "dprint.h"
#include "mem/mem.h"
#include "re.h"
#include <string.h>

Include dependency graph for re.c:

Go to the source code of this file.

Defines
#define	MAX_REPLACE_WITH   100
#define	REPLACE_BUFFER_SIZE   1024
Functions
int	parse_repl (struct replace_with *rw, char **begin, char *end, int *max_token_nb, int with_sep)
static int	replace_build (const char *match, int nmatch, regmatch_t *pmatch, struct subst_expr *se, struct sip_msg *msg, str *rpl)
	Replies will be allocated with the proper size & rpl.len set.
void	replace_lst_free (struct replace_lst *l)
	frees the entire list, head (l) too
void	subst_expr_free (struct subst_expr *se)
struct subst_expr *	subst_parser (str *subst)
	Parse a /regular expression/replacement/flags into a subst_expr structure.
struct replace_lst *	subst_run (struct subst_expr *se, const char *input, struct sip_msg *msg, int *count)
	run substitutions
str *	subst_str (const char *input, struct sip_msg *msg, struct subst_expr *se, int *count)

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Detailed Description

Regexp and regexp substitutions implementations.

Definition in file re.c.

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Define Documentation

#define MAX_REPLACE_WITH   100

Definition at line 69 of file re.c.

Referenced by build_rule(), parse_repl(), and rule_translate().

#define REPLACE_BUFFER_SIZE   1024

Referenced by replace_build().

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Function Documentation

int parse_repl	(	struct replace_with *	rw,
		char **	begin,
		char *	end,
		int *	max_token_nb,
		int	with_sep
	)

Definition at line 70 of file re.c.

References replace_with::c, _str::len, LM_ERR, LM_WARN, MAX_REPLACE_WITH, replace_with::nmatch, NULL, replace_with::offset, PV_MARKER, pv_parse_spec(), REPLACE_CHAR, REPLACE_NMATCH, REPLACE_SPEC, REPLACE_URI, _str::s, s, replace_with::size, replace_with::spec, replace_with::type, and replace_with::u.

Referenced by repl_exp_parse(), and subst_parser().

static int replace_build	(	const char *	match,
		int	nmatch,
		regmatch_t *	pmatch,
		struct subst_expr *	se,
		struct sip_msg *	msg,
		str *	rpl
	)			[static]

Replies will be allocated with the proper size & rpl.len set.

Returns:

0 on success, <0 on error

Definition at line 380 of file re.c.

References replace_with::c, sip_msg::first_line, _str::len, LM_CRIT, LM_ERR, subst_expr::n_escapes, sip_msg::new_uri, replace_with::nmatch, replace_with::offset, pkg_malloc, pv_get_spec_value(), subst_expr::replace, REPLACE_BUFFER_SIZE, REPLACE_CHAR, REPLACE_NMATCH, REPLACE_SPEC, REPLACE_URI, subst_expr::replacement, msg_start::request, _pv_value::rs, _str::s, SIP_REQUEST, replace_with::size, replace_with::spec, msg_start::type, replace_with::type, msg_start::u, and replace_with::u.

Referenced by subst_run().

void replace_lst_free

(

struct replace_lst *

l

)

frees the entire list, head (l) too

Definition at line 57 of file re.c.

References replace_lst::next, pkg_free, replace_lst::rpl, and _str::s.

Referenced by subst_body_f(), subst_f(), subst_run(), and subst_str().

void subst_expr_free

(

struct subst_expr *

se

)

Definition at line 47 of file re.c.

References pkg_free, subst_expr::re, subst_expr::replacement, and _str::s.

Referenced by subst_parser(), and tr_txt_parse_re().

struct subst_expr* subst_parser

(

str *

subst

)

[read]

Parse a /regular expression/replacement/flags into a subst_expr structure.

Definition at line 207 of file re.c.

References _str::len, LM_DBG, LM_ERR, subst_expr::max_pmatch, parse_repl(), pkg_free, pkg_malloc, subst_expr::re, _str::s, subst_expr_free(), and WITH_SEP.

Referenced by fixup_subst(), fixup_substre(), ldap_result_check_fixup(), ldap_result_fixup(), and tr_txt_parse_re().

struct replace_lst* subst_run	(	struct subst_expr *	se,
		const char *	input,
		struct sip_msg *	msg,
		int *	count
	)			[read]

run substitutions

Returns:

0 if no match or error, or subst result; if count!=0 it will be set to 0 (no match), the number of matches or -1 (error).

Note:

WARNING: input must be 0 terminated!

Definition at line 500 of file re.c.

References LM_DBG, LM_ERR, subst_expr::max_pmatch, pkg_free, pkg_malloc, subst_expr::re, subst_expr::replace_all, replace_build(), and replace_lst_free().

Referenced by subst_body_f(), subst_f(), and subst_str().

str* subst_str	(	const char *	input,
		struct sip_msg *	msg,
		struct subst_expr *	se,
		int *	count
	)

Returns:

the substitution result in a str, input must be 0 term 0 on no match or malloc error if count is non zero it will be set to the number of matches, or -1 if error

Definition at line 583 of file re.c.

References _str::len, LM_DBG, LM_ERR, replace_lst::next, replace_lst::offset, pkg_free, pkg_malloc, replace_lst_free(), replace_lst::rpl, _str::s, replace_lst::size, and subst_run().

Referenced by ldap_result_check(), ldap_write_result(), ops_subst(), subst_uri_f(), subst_user_f(), and tr_txt_eval_re().