%{

/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QLALR tool of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

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** $QT_END_LICENSE$

**

****************************************************************************/

#include <cassert>

#define YY_DECL int GLSLParser::nextToken()

%}

%option noyywrap

hex [0-9a-fA-F]

dec [1-9][0-9]*

oct [0-7]

digit [0-9]

fract {digit}*\.{digit}+|{digit}+\.

exp [eE][+-]?{digit}+

hexfract {hex}*\.{hex}+|{hex}+\.

binexp [pP][+-]?{digit}+

icst ({dec}|0{oct}*|0[xX]{hex}+)

%%

[\n]					{ ++context.line; }

[ \t\r]+				{ /* skip */ }

"+=" { return ADD_ASSIGN; }

"&" { return AMPERSAND; }

"&=" { return AND_ASSIGN; }

"&&" { return AND_OP; }

"attribute" { return ATTRIBUTE; }

"!" { return BANG; }

"bool" { return BOOL; }

"true" { return BOOLCONSTANT; }

"false" { return BOOLCONSTANT; }

"break" { return BREAK; }

"bvec2" { return BVEC2; }

"bvec3" { return BVEC3; }

"bvec4" { return BVEC4; }

":" { return COLON; }

"," { return COMMA; }

"const" { return CONST; }

"continue" { return CONTINUE; }

"-" { return DASH; }

"--" { return DEC_OP; }

"discard" { return DISCARD; }

"/=" { return DIV_ASSIGN; }

"do" { return DO; }

"." { return DOT; }

"else" { return ELSE; }

"=" { return EQUAL; }

"==" { return EQ_OP; }

"float" { return FLOAT; }

"for" { return FOR; }

">=" { return GE_OP; }

"if" { return IF; }

"in" { return IN; }

"++" { return INC_OP; }

"inout" { return INOUT; }

"int" { return INT; }

"ivec2" { return IVEC2; }

"ivec3" { return IVEC3; }

"ivec4" { return IVEC4; }

"<" { return LEFT_ANGLE; }

"<<=" { return LEFT_ASSIGN; }

"{" { return LEFT_BRACE; }

"[" { return LEFT_BRACKET; }

"<<" { return LEFT_OP; }

"(" { return LEFT_PAREN; }

"<=" { return LE_OP; }

"mat2" { return MAT2; }

"mat3" { return MAT3; }

"mat4" { return MAT4; }

"%=" { return MOD_ASSIGN; }

"*=" { return MUL_ASSIGN; }

"!=" { return NE_OP; }

"|=" { return OR_ASSIGN; }

"||" { return OR_OP; }

"out" { return OUT; }

"%" { return PERCENT; }

"+" { return PLUS; }

"?" { return QUESTION; }

"return" { return RETURN; }

">" { return RIGHT_ANGLE; }

">>=" { return RIGHT_ASSIGN; }

"}" { return RIGHT_BRACE; }

"]" { return RIGHT_BRACKET; }

">>" { return RIGHT_OP; }

")" { return RIGHT_PAREN; }

"sampler1D" { return SAMPLER1D; }

"sampler1DShadow" { return SAMPLER1DSHADOW; }

"sampler2D" { return SAMPLER2D; }

"sampler2DShadow" { return SAMPLER2DSHADOW; }

"sampler3D" { return SAMPLER3D; }

"samplerCube" { return SAMPLERCUBE; }

";" { return SEMICOLON; }

"/" { return SLASH; }

"*" { return STAR; }

"struct" { return STRUCT; }

"-=" { return SUB_ASSIGN; }

"~" { return TILDE; }

"uniform" { return UNIFORM; }

"varying" { return VARYING; }

"vec2" { return VEC2; }

"vec3" { return VEC3; }

"vec4" { return VEC4; }

"|" { return VERTICAL_BAR; }

"void" { return VOID; }

"while" { return WHILE; }

"^=" { return XOR_ASSIGN; }

"^" { return XOR_OP; }

"highp" { return HIGH_PRECISION; }

"mediump" { return MEDIUM_PRECISION; }

"lowp" { return LOW_PRECISION; }

#[ \t]+[0-9]+.* {

  char *eptr = 0;

  context.line = (int) strtod(&yytext[1], &eptr);

  QString fn = QString::fromUtf8(eptr).trimmed();

  if (fn.length() > 2)

    context.fileName = fn.mid(1, fn.length()-2);

}

#.* {

  /* skip */

}

[_a-zA-Z][_a-zA-Z0-9]* {

  yylval.s = intern (yytext);

  if (isTypename (yylval.s))

    return TYPE_NAME;

  return IDENTIFIER;

}

{icst} {

  yylval.i = (int) strtol (yytext, 0, 0);

  return INTCONSTANT;

}

{icst}[uU] {

  yylval.u = (unsigned) strtoul (yytext, 0, 0);

  return INTCONSTANT;

}

{icst}[uU][lL] {

  yylval.ul = strtoul (yytext, 0, 0);

  return INTCONSTANT;

}

{icst}[lL][uU] {

  yylval.ul = strtoul (yytext, 0, 0);

  return INTCONSTANT;

}

{icst}[lL] {

  yylval.l = strtol (yytext, 0, 0);

  return INTCONSTANT;

}

{icst}[uU](ll|LL) {

  yylval.l = strtoull (yytext, 0, 0);

  return INTCONSTANT;

}

{icst}(ll|LL) {

  yylval.l = strtoll (yytext, 0, 0);

  return INTCONSTANT;

}

{icst}(ll|LL)[uU] {

  yylval.l = strtoull (yytext, 0, 0);

  return INTCONSTANT;

}

{fract}{exp}?[flFL]? {

  yylval.f = strtof (yytext, 0);

  return FLOATCONSTANT;

}

{digit}+{exp}[flFL]? {

  yylval.f = strtof (yytext, 0);

  return FLOATCONSTANT;

}

0[xX]{hexfract}{binexp}[flFL]? {

  yylval.f = strtof (yytext, 0);

  return FLOATCONSTANT;

}

0[xX]{hex}+{binexp}[flFL]? {

  yylval.f = strtof (yytext, 0);

  return FLOATCONSTANT;

}

. {

  fprintf (stderr, "invalid char: %d\n", yytext [0]);

  return ERROR;

}

%%