lib/hx509/sel.h

   1 /*
   2  * Copyright (c) 2008 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 enum hx_expr_op {
  35     op_TRUE,
  36     op_FALSE,
  37     op_NOT,
  38     op_AND,
  39     op_OR,
  40     op_COMP,
  41
  42     comp_EQ,
  43     comp_NE,
  44     comp_IN,
  45     comp_TAILEQ,
  46
  47     expr_NUMBER,
  48     expr_STRING,
  49     expr_FUNCTION,
  50     expr_VAR,
  51     expr_WORDS
  52 };
  53
  54 struct hx_expr {
  55     enum hx_expr_op     op;
  56     void                *arg1;
  57     void                *arg2;
  58 };
  59
  60 struct hx_expr_input {
  61     const char *buf;
  62     size_t length;
  63     size_t offset;
  64     struct hx_expr *expr;
  65     char *error;
  66 };
  67
  68 extern struct hx_expr_input _hx509_expr_input;
  69
  70 /*
  71  * With bison/flex, the more modern way to allow multiple yacc/lex grammars to
  72  * be linked into a single executable is to use the
  73  *
  74  *         bison: -p, --name-prefix=,PREFIX/, -Dapi.prefix=PREFIX
  75  *         flex: -Pprefix, --prefix=STRING
  76  *
  77  * options, these take care of renaming all the machine-generated global entry
  78  * points, some of which are new.  When these options are used "yylex",
  79  * "yyparse", ... are already defined and our (potentially incomplete) attempt
  80  * to do the same conflicts with the "right" new way to handle this.  The below
  81  * logic gets us out of the way when the job has already been taken care of by
  82  * the parser-generator.
  83  */
  84 #if !defined(yylex)
  85 #define yylex   _hx509_sel_yylex
  86 #define yywrap  _hx509_sel_yywrap
  87 #endif
  88 #if !defined(yyparse)
  89 #define yyparse _hx509_sel_yyparse
  90 #define yyerror _hx509_sel_yyerror
  91 #define yylval  _hx509_sel_yylval
  92 #define yychar  _hx509_sel_yychar
  93 #define yydebug _hx509_sel_yydebug
  94 #define yynerrs _hx509_sel_yynerrs
  95 #endif
  96
  97 int  _hx509_sel_yyparse(void);
  98 int  _hx509_sel_yylex(void);
  99 void _hx509_sel_yyerror(const char *);
 100