Of course, these aren't really useful for anything, but the GLSL language
specification does allow them:
The source character set used for the OpenGL shading languages,
outside of comments, is a subset of UTF-8. It includes the following
characters:
...
White space: the space character, horizontal tab, vertical tab, form
feed, carriage-return, and line- feed.
[GLSL Language Specification 4.30.6, section 3.1]
So treat vertical tab ('\v' or ^K) and form-feed ('\f' or ^L) as horizontal
space characters.
---
src/glsl/glcpp/glcpp-lex.l | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/glsl/glcpp/glcpp-lex.l b/src/glsl/glcpp/glcpp-lex.l
index c126850..0dbdab0 100644
--- a/src/glsl/glcpp/glcpp-lex.l
+++ b/src/glsl/glcpp/glcpp-lex.l
@@ -170,7 +170,7 @@ glcpp_lex_update_state_per_token (glcpp_parser_t *parser,
int token)
SPACE [[:space:]]
NONSPACE [^[:space:]]
-HSPACE [ \t]
+HSPACE [ \t\v\f]
HASH #
IDENTIFIER [_a-zA-Z][_a-zA-Z0-9]*
PP_NUMBER [.]?[0-9]([._a-zA-Z0-9]|[eEpP][-+])*
--
2.0.0
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