diff options
Diffstat (limited to 'util/qlalr/examples/glsl/glsl-lex.l')
| -rw-r--r-- | util/qlalr/examples/glsl/glsl-lex.l | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/util/qlalr/examples/glsl/glsl-lex.l b/util/qlalr/examples/glsl/glsl-lex.l new file mode 100644 index 0000000000..16ff333b79 --- /dev/null +++ b/util/qlalr/examples/glsl/glsl-lex.l @@ -0,0 +1,245 @@ + +%{ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QLALR tool of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** 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, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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; +} + + +%% + |