Long live Qt 4.5!

1 files changed, 201 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 0000000..1e07c3b
--- /dev/null
+++ b/util/qlalr/examples/glsl/glsl-lex.l
@@ -0,0 +1,201 @@
+
+%{
+#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; }
+
+#[ \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;
+}
+
+
+%%
+