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/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Drizzle Execute Parser
*
* Copyright (C) 2011 Data Differential, http://datadifferential.com/
* Copyright (C) 2011 Vijay Samuel, vjsamuel1990@gmail.com
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * The names of its contributors may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
%top{
#include <config.h>
#include <drizzled/execute/parser.h>
#include <drizzled/execute/context.h>
#include <drizzled/execute/symbol.h>
#include <drizzled/lex_string.h>
using namespace drizzled;
#ifndef __INTEL_COMPILER
#pragma GCC diagnostic ignored "-Wold-style-cast"
#pragma GCC diagnostic ignored "-Wsign-compare"
#pragma GCC diagnostic ignored "-Wunused-parameter"
#pragma GCC diagnostic ignored "-Wmissing-declarations"
#endif
#define YY_EXTRA_TYPE ::drizzled::execute::Context*
}
%{
#include <cstdio>
#include <cstdlib>
#include <cstring>
#define PARAM yyget_extra(yyscanner)
#define get_lex_chars(buffer, result, max_size, context) \
{ \
if (context->pos >= context->length) \
{ \
result= YY_NULL; \
} \
else \
{ \
result= (int)(context->length - context->pos); \
(size_t)result > (size_t)max_size ? result= max_size : 0; \
memcpy(buffer, context->buf + context->pos, result); \
context->pos += result; \
} \
}
#define YY_INPUT(buffer, result, max_size) get_lex_chars(buffer, result, max_size, PARAM)
%}
UTF8_BYTE_ORDER_MARK [\xEF][\xBB][\xBF]
DIGITS [0-9]
ASCII [\x0-\xFF]
U1 [a-zA-Z_]
U2 [\xC2-\xDF][\x80-\xBF]
U3 [\xE0][\xA0-\xBF][\x80-\xBF]
U4 [\xE1-\xEC][\x80-\xBF][\x80-\xBF]
U5 [\xED][\x80-\x9F][\x80-\xBF]
U6 [\xEE-\xEF][\x80-\xBF][\x80-\xBF]
U7 [\nxF0][\x90-\xBF][\x80-\xBF][\x80-\xBF]
U8 [\xF1-\xF3][\x80-\xBF][\x80-\xBF][\x80-\xBF]
U9 [\xF4][\x80-\x8F][\x80-\xBF][\x80-\xBF]
LETTERS {ASCII}|{U2}|{U3}|{U4}|{U5}|{U6}|{U7}|{U8}|{U9}
ALNUM {LETTERS}|{DIGITS}
%option nounistd
%option 8bit
%option bison-bridge
%option case-insensitive
%option debug
%option nounput
%option noyywrap
%option outfile="drizzled/execute/scanner.cc" header-file="drizzled/execute/scanner.h"
%option perf-report
%option prefix="execute_"
%option reentrant
%%
{UTF8_BYTE_ORDER_MARK} { /* Byte Order Mark */ }
[\t\r\n ] ; /* skip whitespace */
[[:punct:]]?{ALNUM}*["."{ALNUM}_-]*{ALNUM}*[[:punct:]]? {
yylval->string.assign(yytext, yyleng);
return STRING;
}
. {
yyextra->begin= yytext;
return UNKNOWN;
}
%%
namespace drizzled {
namespace execute {
void Context::init_scanner()
{
yylex_init(&scanner);
yyset_extra(this, scanner);
}
void Context::destroy_scanner()
{
yylex_destroy(scanner);
}
} // namespace execute
} // namespace drizzled
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