/*
 *   This program 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 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program 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 this program; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */
#ifndef FR_TOKEN_H
#define FR_TOKEN_H

/**
 * $Id$
 *
 * @file token.h
 * @brief Tokenisation code and constants.
 *
 * @copyright 2001,2006  The FreeRADIUS server project
 */

RCSIDH(token_h, "$Id$")

#ifdef __cplusplus
extern "C" {
#endif

typedef enum fr_token_t {
	T_INVALID = 0,			/* invalid token */
	T_EOL,				/* end of line */
	T_LCBRACE,			/* { */
	T_RCBRACE,			/* } */
	T_LBRACE,			/* ( */
	T_RBRACE,			/* ) 		 5 */
	T_COMMA,			/* , */
	T_SEMICOLON,			/* ; */

	T_OP_INCRM,			/* ++ */
	T_OP_ADD,			/* += */
	T_OP_SUB,			/* -=  		10 */
	T_OP_SET,			/* := */
	T_OP_EQ,			/* = */
	T_OP_NE,			/* != */
	T_OP_GE,			/* >= */
	T_OP_GT,			/* > 		15 */
	T_OP_LE,			/* <= */
	T_OP_LT,			/* < */
	T_OP_REG_EQ,			/* =~ */
	T_OP_REG_NE,			/* !~ */
	T_OP_CMP_TRUE,			/* =* 		20 */
	T_OP_CMP_FALSE,			/* !* */
	T_OP_CMP_EQ,			/* == */
	T_OP_PREPEND,			/* ^= */
	T_HASH,				/* # */
	T_BARE_WORD,			/* bare word    25 */
	T_DOUBLE_QUOTED_STRING,		/* "foo" */
	T_SINGLE_QUOTED_STRING,		/* 'foo' */
	T_BACK_QUOTED_STRING,		/* `foo` */
	T_TOKEN_LAST
} FR_TOKEN;

#define T_EQSTART	T_OP_ADD
#define	T_EQEND		(T_OP_PREPEND + 1)

typedef struct FR_NAME_NUMBER {
	char const	*name;
	int		number;
} FR_NAME_NUMBER;

extern const FR_NAME_NUMBER fr_tokens[];
extern const bool fr_assignment_op[];
extern const bool fr_equality_op[];
extern const bool fr_str_tok[];

int fr_str2int(FR_NAME_NUMBER const *table, char const *name, int def);
int fr_substr2int(FR_NAME_NUMBER const *table, char const *name, int def, int len);
char const *fr_int2str(FR_NAME_NUMBER const *table, int number, char const *def);

int		getword (char const **ptr, char *buf, int buflen, bool unescape);
FR_TOKEN	gettoken(char const **ptr, char *buf, int buflen, bool unescape);
FR_TOKEN	getop(char const **ptr);
FR_TOKEN	getstring(char const **ptr, char *buf, int buflen, bool unescape);
char const	*fr_token_name(int);

#ifdef __cplusplus
}
#endif

#endif /* FR_TOKEN_H */