glsl: Fix lexer rule for ^=

The caret is a special character, and needs to be quoted or escaped.

diff --git a/src/glsl/glsl_lexer.lpp b/src/glsl/glsl_lexer.lpp
index c0778a656a3700882e1e3c4d986bf3112de8addf..f690c4728b5bcdd97c4866d8f1afda48db6b82bd 100644 (file)
--- a/src/glsl/glsl_lexer.lpp
+++ b/src/glsl/glsl_lexer.lpp
@@ -250,7 +250,7 @@ layout              {
 \<\<=          return LEFT_ASSIGN;
 >>=            return RIGHT_ASSIGN;
 &=             return AND_ASSIGN;
-^=             return XOR_ASSIGN;
+"^="           return XOR_ASSIGN;
 \|=            return OR_ASSIGN;
 -=             return SUB_ASSIGN;