commit 828686d4ebe055d1c6583192bc57742e101ff931
author Carl Worth <cworth@cworth.org> Fri Jun 20 14:58:48 2014 -0700
committer Carl Worth <cworth@cworth.org> Tue Jul 29 15:11:49 2014 -0700
tree fe6825369bfd1e755dd8b4f83e7121bc8e3744dc
parent 5dbdc341e8e8502ab5d98784a24b54c6f3907472

glsl/glcpp: Drop extra, final newline from most output

The glcpp parser is line-based, so it needs to see a NEWLINE token at the end
of each line. This causes a trick for files that end without a final newline.

Previously, the lexer for glcpp punted in this case by unconditionally
returning a NEWLINE token at end-of-file, (causing most files to have an extra
blank line at the end). Here, we refine this by lexing end-of-file as a
NEWLINE token only if the immediately preceding token was not a NEWLINE token.

The patch is a minor change that only looks huge for two reasons:

	1. Almost all glcpp test result ".expected" files are updated to drop
	   the extra newline.

	2. All return statements from the lexer are adjusted to use a new
	   RETURN_TOKEN macro that tracks the last-token-was-a-newline state.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>