[gtk/matthiasc/glshader-node] gsk: Make uniform regex more forgiving

[Matthias Clasen <matthiasc src gnome org>]

commit a0bc9d65da354070685052dcace058699cbc7d22
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Sep 23 18:03:52 2020 -0400

    gsk: Make uniform regex more forgiving
    
    Accept - in initializers, otherwise we don't accept
    things like uniform int n = -2;

 gsk/gskglshader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gsk/gskglshader.c b/gsk/gskglshader.c
index 38f2205218..281e3b67b8 100644
--- a/gsk/gskglshader.c
+++ b/gsk/gskglshader.c
@@ -392,7 +392,7 @@ gsk_gl_shader_constructed (GObject *object)
 #define OPT_SPACE_RE "[ \\t]*"
 #define UNIFORM_TYPE_RE "(int|uint|bool|float|vec2|vec3|vec4|sampler2D)"
 #define UNIFORM_NAME_RE "([\\w]+)"
-#define OPT_INIT_VALUE_RE "[\\w(),. ]+" // This is a bit simple, but will match most initializers
+#define OPT_INIT_VALUE_RE "[-\\w(),. ]+" // This is a bit simple, but will match most initializers
 #define OPT_COMMENT_RE "(//.*)?"
 #define OPT_INITIALIZER_RE  "(" OPT_SPACE_RE "=" OPT_SPACE_RE  OPT_INIT_VALUE_RE ")?"
 #define UNIFORM_MATCHER_RE "^uniform" SPACE_RE UNIFORM_TYPE_RE SPACE_RE UNIFORM_NAME_RE OPT_INITIALIZER_RE 
OPT_SPACE_RE ";" OPT_SPACE_RE OPT_COMMENT_RE "$"