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/*
Copyright (C) 2010 George Kiagiadakis <kiagiadakis.george@gmail.com>
Copyright (C) 2010 Collabora Ltd.
@author George Kiagiadakis <george.kiagiadakis@collabora.co.uk>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 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 Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
%{
#include "yystype.h"
#include "generator.h"
#define YY_DECL int yylex(CodeGen *codegen)
void yyerror(CodeGen *codegen, const char *msg);
%}
%option noyywrap
%option yylineno
%option stack
id [a-zA-Z][a-zA-Z_0-9]*
%x REGISTER_TYPE
%x REGISTER_WRAPPER
%x ENUM
%x ENUM_EAT_ASSIGNMENT
%x INSTRUCTION
%x LINE_COMMENT
%x C_STYLE_COMMENT
%x NAMESPACE
%x CLASS
%x EAT_TEMPLATE
%x MACRO
%%
<REGISTER_TYPE,REGISTER_WRAPPER,ENUM,INSTRUCTION>{id} { yylval.Id = new QByteArray(yytext); return IDENTIFIER; }
QGLIB_REGISTER_TYPE\( { yy_push_state(REGISTER_TYPE); return REGISTER_TYPE_BEGIN; }
<REGISTER_TYPE>{
:: { return SCOPE_RESOLUTION_OPERATOR; }
\) { yy_pop_state(); return REGISTER_TYPE_END; }
[[:space:]]*
. { yyerror(codegen, "Syntax error in QGLIB_REGISTER_TYPE"); }
}
Q[A-Z]+_WRAPPER\( { yy_push_state(REGISTER_WRAPPER); return REGISTER_WRAPPER_BEGIN; }
Q[A-Z]+_WRAPPER_DIFFERENT_C_CLASS\( { yy_push_state(REGISTER_WRAPPER); return REGISTER_WRAPPER_BEGIN; }
Q[A-Z]+_WRAPPER_FAKE_SUBCLASS\( { yy_push_state(REGISTER_WRAPPER); return REGISTER_WRAPPER_SUBCLASS_BEGIN; }
<REGISTER_WRAPPER>{
, { return COMMA; }
\) { yy_pop_state(); return REGISTER_WRAPPER_END; }
[[:space:]]*
. { yyerror(codegen, "Syntax error in wrapper definition"); }
}
[[:space:]]enum { yy_push_state(ENUM); return ENUM_KEYWORD; }
<ENUM>{
\{ { return LEFT_BRACE; }
\} { return RIGHT_BRACE; }
, { return COMMA; }
= { yy_push_state(ENUM_EAT_ASSIGNMENT); }
; { yy_pop_state(); return SEMICOLON; }
[[:space:]]*
. { yyerror(codegen, "Syntax error in enum definition"); }
}
<ENUM_EAT_ASSIGNMENT>{
, { unput(','); yy_pop_state(); }
\} { unput('}'); yy_pop_state(); }
\n
.
}
<*>\/\/ { yy_push_state(LINE_COMMENT); }
<LINE_COMMENT>{
\n { yy_pop_state(); }
codegen: { yy_push_state(INSTRUCTION); return INSTRUCTIONS_BEGIN; }
.
}
<INSTRUCTION>{
\n { unput('\n'); yy_pop_state(); return INSTRUCTIONS_END; }
= { return INSTRUCTIONS_ASSIGN_OPERATOR; }
, { return INSTRUCTIONS_SEPARATOR; }
[[:space:]]
. { yyerror(codegen, "Syntax error in instruction comment"); }
}
<*>\/\* { yy_push_state(C_STYLE_COMMENT); }
<C_STYLE_COMMENT>{
\*\/ { yy_pop_state(); }
\n
.
}
[[:space:]]namespace { yy_push_state(NAMESPACE); return NAMESPACE_KEYWORD; }
<NAMESPACE>{
{id} { yylval.Id = new QByteArray(yytext); yy_pop_state(); return IDENTIFIER; }
[[:space:]]*
. { yyerror(codegen, "Expected identifier after namespace keyword"); }
}
[[:space:]]class { yy_push_state(CLASS); return CLASS_KEYWORD; }
<CLASS>{
{id} { yylval.Id = new QByteArray(yytext); yy_pop_state(); return IDENTIFIER; }
[[:space:]]*
. { yyerror(codegen, "Expected identifier after class keyword"); }
}
template[[:space:]]*\< { yy_push_state(EAT_TEMPLATE); }
<EAT_TEMPLATE>{
\< { yy_push_state(EAT_TEMPLATE); };
\> { yy_pop_state(); }
\n
.
}
/* Eats only one-line defines. Used to eat the #define QGLIB_REGISTER_TYPE(T),
which would be a syntax error for codegen otherwise. */
#define { yy_push_state(MACRO); }
<MACRO>{
\n { yy_pop_state(); }
.
}
<*><<EOF>> { return EOF; }
\n
.
%%
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