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 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev