From aac523f80ed90dd28c070d2a2a280bfd0c83bc88 Mon Sep 17 00:00:00 2001
From: artemp <artem@mapnik.org>
Date: Fri, 1 Apr 2016 12:54:40 +0200
Subject: [PATCH] add `no_skip` directive in unquoted_ustring rule (ref:
 https://github.com/mapnik/mapnik/pull/3389#issuecomment-204344223)

---
 include/mapnik/expression_grammar_impl.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/mapnik/expression_grammar_impl.hpp b/include/mapnik/expression_grammar_impl.hpp
index dda4c15f0..40be6b995 100644
--- a/include/mapnik/expression_grammar_impl.hpp
+++ b/include/mapnik/expression_grammar_impl.hpp
@@ -270,7 +270,7 @@ expression_grammar<Iterator>::expression_grammar(std::string const& encoding)
     quoted_ustring %= omit[quote_char[_a = _1]]
         >> *(unesc_char | "\\x" >> hex | (char_ - lit(_a)))
         >> lit(_a);
-    unquoted_ustring %= ((alpha >> *alnum) - lit("not"));
+    unquoted_ustring %= no_skip[alpha >> *alnum] - lit("not");
     attr %= '[' >> no_skip[+~char_(']')] >> ']';
     global_attr %= '@' >> no_skip[alpha >> * (alnum | char_('-'))];