mirror of
https://github.com/haproxy/haproxy.git
synced 2026-03-23 19:03:06 -04:00
f869095df9
The purpose is to build a descendent parser that will split conditions into expressions made of terms. There are two phases, a parsing phase and an evaluation phase. Strictly speaking it's not required to cut that in two right now, but it's likely that in the future we won't want certain predicates to be evaluated during the parsing (e.g. file system checks or execution of some external commands). The cfg_eval_condition() function is now much simpler, it just tries to parse a single term, and if OK evaluates it, then returns the result. Errors are unchanged and may still be reported during parsing or evaluation. It's worth noting that some invalid expressions such as streq(a,b)zzz continue to parse correctly for now (what remains after the parenthesis is simply ignored as not necessary).
33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
/*
|
|
* include/haproxy/cfgcond.h
|
|
* Configuration condition preprocessor
|
|
*
|
|
* Copyright (C) 2000-2021 Willy Tarreau - w@1wt.eu
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation, version 2.1
|
|
* exclusively.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _HAPROXY_CFGCOND_H
|
|
#define _HAPROXY_CFGCOND_H
|
|
|
|
#include <haproxy/api.h>
|
|
#include <haproxy/cfgcond-t.h>
|
|
|
|
const struct cond_pred_kw *cfg_lookup_cond_pred(const char *str);
|
|
int cfg_parse_cond_term(const char **text, struct cfg_cond_term *term, char **err, const char **errptr);
|
|
int cfg_eval_cond_term(const struct cfg_cond_term *term, char **err);
|
|
int cfg_eval_condition(char **args, char **err, const char **errptr);
|
|
|
|
#endif
|