token.h

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#pragma once
/*
 *  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
 */
 
/** Tokenisation code and constants
 *
 * This is mostly for the attribute filter and user files.
 *
 * @file src/lib/util/token.h
 *
 * @copyright 2001,2006 The FreeRADIUS server project
 */
RCSIDH(token_h, "$Id: 05f6062a44f27d95d5295660810461ddd784e7da $")
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <freeradius-devel/build.h>
#include <freeradius-devel/missing.h>
#include <freeradius-devel/util/table.h>
#include <stdbool.h>
#include <stdint.h>
 
typedef enum fr_token {
        T_INVALID = 0,                  /* invalid token */
        T_EOL,                          /* end of line */
        T_LCBRACE,                      /* { */
        T_RCBRACE,                      /* } */
        T_LBRACE,                       /* ( */
        T_RBRACE,                       /* ) */
        T_COMMA,                        /* , */
        T_SEMICOLON,                    /* ; */
 
        /*
         *      Binary operations
         */
        T_ADD,                          /* + */
        T_SUB,                          /* - */
        T_MUL,                          /* * */
        T_DIV,                          /* / */
        T_AND,                          /* & */
        T_OR,                           /* | */
        T_NOT,                          /* ! */
        T_XOR,                          /* ^ */
        T_COMPLEMENT,                   /* ~ */
        T_MOD,                          /* % */
 
        T_RSHIFT,                       /* >> */
        T_LSHIFT,                       /* << */
 
        /*
         *      Assignment operators associated with binary
         *      operations.
         */
        T_OP_ADD_EQ,                    /* += */
        T_OP_SUB_EQ,                    /* -= */
        T_OP_MUL_EQ,                    /* *= */
        T_OP_DIV_EQ,                    /* /= */
        T_OP_OR_EQ,                     /* |= */
        T_OP_AND_EQ,                    /* &= */
 
        T_OP_RSHIFT_EQ,                 /* >>= */
        T_OP_LSHIFT_EQ,                 /* <<= */
 
        /*
         *      Assignment operators associated with
         *      other operations.
         */
        T_OP_EQ,                        /* = */
        T_OP_SET,                       /* := */
        T_OP_PREPEND,                   /* ^= */
#define T_OP_XOR_EQ T_OP_PREPEND
 
        /*
         *      Logical / short-circuit operators.
         */
        T_LAND,                         /* && */
        T_LOR,                          /* || */
 
        /*
         *      Comparison operators.
         */
        T_OP_NE,                        /* != */
        T_OP_GE,                        /* >= */
        T_OP_GT,                        /* >  */
        T_OP_LE,                        /* <= */
        T_OP_LT,                        /* < */
        T_OP_REG_EQ,                    /* =~ */
        T_OP_REG_NE,                    /* !~ */
        T_OP_CMP_TRUE,                  /* =* */
        T_OP_CMP_FALSE,                 /* !* */
        T_OP_CMP_EQ,                    /* == */
        T_OP_CMP_EQ_TYPE,               /* === */
        T_OP_CMP_NE_TYPE,               /* !== */
 
        /*
         *      Unary calc operator.
         */
        T_OP_INCRM,                     /* ++ */
 
        /*
         *      T_HASH MUST be after all of various assignment
         *      operators.  See fr_token_quote[].
         */
        T_HASH,                         /* # */
        T_BARE_WORD,                    /* bare word */
        T_DOUBLE_QUOTED_STRING,         /* "foo" */
        T_SINGLE_QUOTED_STRING,         /* 'foo' */
        T_BACK_QUOTED_STRING,           /* `foo` */
        T_SOLIDUS_QUOTED_STRING,        /* /foo/ */
} fr_token_t;
/*
 *      This must be manually updated, and is never part of the ENUM.
 */
#define T_TOKEN_LAST (T_SOLIDUS_QUOTED_STRING + 1)
 
#define T_EQSTART       T_OP_ADD_EQ
#define T_EQEND         (T_HASH)
 
/** Macro to use as dflt
 *
 */
#define FR_TABLE_NOT_FOUND      INT32_MIN
 
extern fr_table_num_ordered_t const fr_tokens_table[];
extern size_t fr_tokens_table_len;
extern fr_table_num_sorted_t const fr_token_quotes_table[];
extern size_t fr_token_quotes_table_len;
extern const char *fr_tokens[T_TOKEN_LAST];
extern const char fr_token_quote[T_TOKEN_LAST];
extern const bool fr_assignment_op[T_TOKEN_LAST];
extern const bool fr_comparison_op[T_TOKEN_LAST];
extern const bool fr_binary_op[T_TOKEN_LAST];
extern const bool fr_str_tok[T_TOKEN_LAST];
extern const bool fr_list_assignment_op[T_TOKEN_LAST];
 
int             getword (char const **ptr, char *buf, int buflen, bool unescape);
fr_token_t      gettoken(char const **ptr, char *buf, int buflen, bool unescape);
fr_token_t      getop(char const **ptr);
fr_token_t      getstring(char const **ptr, char *buf, int buflen, bool unescape);
char const      *fr_token_name(int);
ssize_t         fr_skip_string(char const *start, char const *end);
 
#ifdef __cplusplus
}
#endif