Mesa (master): glsl: Add support for the 'u' and 'U' unsigned integer suffixes.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 7279feeb19485a62ebf820858a549c87891935c7
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7279feeb19485a62ebf820858a549c87891935c7

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Sat Nov 13 23:09:43 2010 -0800

glsl: Add support for the 'u' and 'U' unsigned integer suffixes.

---

 src/glsl/glsl_lexer.lpp |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/glsl/glsl_lexer.lpp b/src/glsl/glsl_lexer.lpp
index 26cf305..7a3f1a6 100644
--- a/src/glsl/glsl_lexer.lpp
+++ b/src/glsl/glsl_lexer.lpp
@@ -36,6 +36,8 @@
 
 #define YY_USER_INIT yylineno = 0; yycolumn = 0;
 
+#define IS_UINT (yytext[yyleng - 1] == 'u' || yytext[yyleng - 1] == 'U')
+
 /* A macro for handling reserved words and keywords across language versions.
  *
  * Certain words start out as identifiers, become reserved words in
@@ -277,17 +279,17 @@ layout		{
 \|=		return OR_ASSIGN;
 -=		return SUB_ASSIGN;
 
-[1-9][0-9]*		{
+[1-9][0-9]*[uU]?	{
 			    yylval->n = strtol(yytext, NULL, 10);
-			    return INTCONSTANT;
+			    return IS_UINT ? UINTCONSTANT : INTCONSTANT;
 			}
-0[xX][0-9a-fA-F]+	{
+0[xX][0-9a-fA-F]+[uU]?	{
 			    yylval->n = strtol(yytext + 2, NULL, 16);
-			    return INTCONSTANT;
+			    return IS_UINT ? UINTCONSTANT : INTCONSTANT;
 			}
-0[0-7]*			{
+0[0-7]*[uU]?		{
 			    yylval->n = strtol(yytext, NULL, 8);
-			    return INTCONSTANT;
+			    return IS_UINT ? UINTCONSTANT : INTCONSTANT;
 			}
 
 [0-9]+\.[0-9]+([eE][+-]?[0-9]+)?[fF]?	{