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08ddf7ad0a
Introduces the syntax "%{:<word>:}", borrowed from the <var>'s one, and which
likewise can be embedded anywhere in a string expression (the same reserved
character ':' gets reused in an unambiguous manner).
This allows the two types of expressions (boolean and string) to now share
fully the same language set, namely: strings, lists, vars, regexes, backrefs,
functions with multiple or complex arguments, and especially combinations
thereof.
Most of them were reserved to boolean expressions only, while complex string
constructions can also benefit to, well, strings. The <word> construct allows
that (say the syntax "%{:<word>:}" looks like a temporary variable constructed
in a string).
Since string expressions may now have to deal with lists (arrays), they also
need a way to produce/extract strings from list and vice versa. This can be
done with the new "join" and "split" operators, while the new substitution
regexes (like "s/<pattern>/<substitute>/<flags>") may be used to manipulate
strings in place. All this of course available for both string and boolean
expressions.
Tests and doc updates upcoming..
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1810605 13f79535-47bb-0310-9956-ffa450edef68
131 lines
3.6 KiB
C
131 lines
3.6 KiB
C
/* A Bison parser, made by GNU Bison 2.7.1. */
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/* Bison interface for Yacc-like parsers in C
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Copyright (C) 1984, 1989-1990, 2000-2013 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* As a special exception, you may create a larger work that contains
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part or all of the Bison parser skeleton and distribute that work
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under terms of your choice, so long as that work isn't itself a
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parser generator using the skeleton or a modified version thereof
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as a parser skeleton. Alternatively, if you modify or redistribute
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the parser skeleton itself, you may (at your option) remove this
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special exception, which will cause the skeleton and the resulting
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Bison output files to be licensed under the GNU General Public
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License without this special exception.
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This special exception was added by the Free Software Foundation in
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version 2.2 of Bison. */
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#ifndef YY_AP_EXPR_YY_UTIL_EXPR_PARSE_H_INCLUDED
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# define YY_AP_EXPR_YY_UTIL_EXPR_PARSE_H_INCLUDED
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/* Enabling traces. */
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#ifndef YYDEBUG
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# define YYDEBUG 0
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#endif
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#if YYDEBUG
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extern int ap_expr_yydebug;
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#endif
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/* Tokens. */
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#ifndef YYTOKENTYPE
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# define YYTOKENTYPE
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/* Put the tokens into the symbol table, so that GDB and other debuggers
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know about them. */
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enum yytokentype {
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T_TRUE = 258,
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T_FALSE = 259,
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T_EXPR_BOOL = 260,
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T_EXPR_STRING = 261,
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T_ERROR = 262,
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T_DIGIT = 263,
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T_ID = 264,
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T_STRING = 265,
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T_REGEX = 266,
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T_REGSUB = 267,
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T_REG_MATCH = 268,
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T_REG_SUBST = 269,
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T_REG_FLAGS = 270,
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T_REG_REF = 271,
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T_OP_UNARY = 272,
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T_OP_BINARY = 273,
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T_STR_BEGIN = 274,
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T_STR_END = 275,
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T_VAR_BEGIN = 276,
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T_VAR_END = 277,
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T_VAREXP_BEGIN = 278,
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T_VAREXP_END = 279,
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T_OP_EQ = 280,
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T_OP_NE = 281,
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T_OP_LT = 282,
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T_OP_LE = 283,
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T_OP_GT = 284,
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T_OP_GE = 285,
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T_OP_REG = 286,
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T_OP_NRE = 287,
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T_OP_IN = 288,
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T_OP_STR_EQ = 289,
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T_OP_STR_NE = 290,
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T_OP_STR_LT = 291,
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T_OP_STR_LE = 292,
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T_OP_STR_GT = 293,
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T_OP_STR_GE = 294,
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T_OP_CONCAT = 295,
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T_OP_SPLIT = 296,
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T_OP_JOIN = 297,
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T_OP_OR = 298,
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T_OP_AND = 299,
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T_OP_NOT = 300
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};
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#endif
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#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
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typedef union YYSTYPE
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{
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/* Line 2053 of yacc.c */
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#line 35 "util_expr_parse.y"
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char *cpVal;
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ap_expr_t *exVal;
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int num;
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/* Line 2053 of yacc.c */
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#line 109 "util_expr_parse.h"
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} YYSTYPE;
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# define YYSTYPE_IS_TRIVIAL 1
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# define yystype YYSTYPE /* obsolescent; will be withdrawn */
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# define YYSTYPE_IS_DECLARED 1
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#endif
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#ifdef YYPARSE_PARAM
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#if defined __STDC__ || defined __cplusplus
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int ap_expr_yyparse (void *YYPARSE_PARAM);
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#else
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int ap_expr_yyparse ();
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#endif
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#else /* ! YYPARSE_PARAM */
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#if defined __STDC__ || defined __cplusplus
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int ap_expr_yyparse (ap_expr_parse_ctx_t *ctx);
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#else
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int ap_expr_yyparse ();
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#endif
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#endif /* ! YYPARSE_PARAM */
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#endif /* !YY_AP_EXPR_YY_UTIL_EXPR_PARSE_H_INCLUDED */
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