127 lines
3.6 KiB
Plaintext
127 lines
3.6 KiB
Plaintext
%{
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/* $NetBSD: cgdlex.l,v 1.5 2009/10/29 14:49:03 christos Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Roland C. Dowdeswell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: cgdlex.l,v 1.5 2009/10/29 14:49:03 christos Exp $");
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#endif
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#include <err.h>
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#include <stdio.h>
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#include "utils.h"
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#include "cgdparse.h"
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/*
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* We use macros here to separate the C from the tokeniser, to
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* ease reading each.
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*/
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#define RETSTRING(x) do { \
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yylval.string = string_new(yytext, yyleng); \
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return (x); \
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} while (0)
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#define RETTOKEN(x) do { \
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yylval.token.text = yytext; \
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yylval.token.length = yyleng; \
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return (x); \
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} while (0)
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#define RETINTEGER(x) do { \
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yylval.integer = atoi(yytext); \
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return (x); \
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} while (0)
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#define QUOTEDBEGIN() do { \
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BEGIN(quoted); \
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quoted_string = string_zero(); \
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} while (0)
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#define QUOTEDADD() do { \
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string_t *tmp; \
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\
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tmp = string_new(yytext, yyleng); \
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quoted_string = string_add_d(quoted_string, tmp); \
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} while (0)
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#define RETQUOTED(x) do { \
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yylval.string = quoted_string; \
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quoted_string = NULL; \
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BEGIN(INITIAL); \
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return(x); \
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} while (0)
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int yylineno;
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string_t *quoted_string;
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void yyerror(const char *);
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int yylex(void);
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%}
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%x quoted
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%option nounput
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%%
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[0-9]+ { RETINTEGER(INTEGER); }
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algorithm { RETTOKEN(ALGORITHM); }
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keylength { RETTOKEN(KEYLENGTH); }
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iv-method { RETTOKEN(IVMETHOD); }
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verify_method { RETTOKEN(VERIFY_METHOD); }
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keygen { RETTOKEN(KEYGEN); }
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salt { RETTOKEN(SALT); }
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iterations { RETTOKEN(ITERATIONS); }
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key { RETTOKEN(KEY); }
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cmd { RETTOKEN(CMD); }
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keygen_method { RETTOKEN(KEYGEN_METHOD); }
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keygen_salt { RETTOKEN(KEYGEN_SALT); }
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keygen_iterations { RETTOKEN(KEYGEN_ITERATIONS); }
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xor_key { RETTOKEN(XOR_KEY); }
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[;\n] { return EOL; }
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\\\n /* ignore a quoted nl */
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[ \t] /* ignore spaces and tabs */
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#[^;\n]* /* ignore comments */
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[^ }{\t\n;"]+ { RETSTRING(STRINGLIT); }
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\" { QUOTEDBEGIN(); }
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<quoted>[^\"]+ { QUOTEDADD(); }
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<quoted>\" { RETQUOTED(STRINGLIT); }
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. { return yytext[0]; }
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%%
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void
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yyerror(const char *msg)
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{
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warnx("%s line %d: %s at '%s'", "foo", yylineno, msg, yytext);
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}
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