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/* The ctok object (implements a config file tokenizer).
*
* Copyright 2008 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of rsyslog.
*
* Rsyslog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rsyslog 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Rsyslog. If not, see <http://www.gnu.org/licenses/>.
*
* A copy of the GPL can be found in the file "COPYING" in this distribution.
*/
#ifndef INCLUDED_CTOK_H
#define INCLUDED_CTOK_H
#include "obj.h"
#include "stringbuf.h"
/* the tokens... I use numbers below so that the tokens can be easier
* identified in debug output. */
typedef struct {
enum {
ctok_INVALID = 0,
ctok_OR = 1,
ctok_AND = 2,
ctok_PLUS = 3,
ctok_MINUS = 4,
ctok_TIMES = 5, /* "*" */
ctok_DIV = 6,
ctok_MOD = 7,
ctok_NOT = 8,
ctok_RPAREN = 9,
ctok_LPAREN = 10,
ctok_COMMA = 11,
ctok_SYSVAR = 12,
ctok_MSGVAR = 13,
ctok_SIMPSTR = 14,
ctok_TPLSTR = 15,
ctok_CMP_EQ = 16,
ctok_CMP_NEQ = 17,
ctok_CMP_LT = 18,
ctok_CMP_GT = 19,
ctok_CMP_LTEQ = 20,
ctok_CMP_GTEQ = 21,
ctok_NUMBER = 22
} tok;
rsCStrObj *pstrVal;
int64 intVal;
} ctok_token_t;
/* the ctokession object */
typedef struct ctok_s {
BEGINobjInstance; /* Data to implement generic object - MUST be the first data element! */
uchar *pp; /* this points to the next unread character, it is a reminescent of pp in
the config parser code ;) */
} ctok_t;
/* prototypes */
rsRetVal ctokConstruct(ctok_t **ppThis);
rsRetVal ctokConstructFinalize(ctok_t __attribute__((unused)) *pThis);
rsRetVal ctokDestruct(ctok_t **ppThis);
rsRetVal ctokGetpp(ctok_t *pThis, uchar **pp);
rsRetVal ctokGetNextToken(ctok_t *pThis, ctok_token_t *pToken);
PROTOTYPEObjClassInit(ctok);
PROTOTYPEpropSetMeth(ctok, pp, uchar*);
#endif /* #ifndef INCLUDED_CTOK_H */
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