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expression_grammar: re-use unicode_string_grammar and add initial support for \uNNNNN code points (TODO)

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This commit is contained in:
artemp 2017-03-01 11:58:18 +01:00
parent 378fa41db6
commit 2d2c5a191b
1 changed files with 6 additions and 2 deletions
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8
include/mapnik/expression_grammar_x3_def.hpp
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@ -24,6 +24,7 @@
#define MAPNIK_EXPRESSIONS_GRAMMAR_X3_DEF_HPP
#include <mapnik/expression_grammar_x3.hpp>
#include <mapnik/json/unicode_string_grammar_x3_def.hpp>
#include <mapnik/expression_node.hpp>
#include <mapnik/function_call.hpp>
#include <mapnik/unicode.hpp>
@ -65,6 +66,9 @@ namespace mapnik { namespace grammar {
using x3::alnum;
x3::uint_parser<char, 16, 2, 2> const hex2 {};
namespace {
auto const& double_quoted = json::unicode_string_grammar();
}
auto do_assign = [] (auto const& ctx)
{
_val(ctx) = std::move(_attr(ctx));
@ -303,8 +307,8 @@ namespace mapnik { namespace grammar {
// strings
auto const single_quoted_string = x3::rule<class single_quoted_string, std::string> {} = lit('\'') >> no_skip[*(unesc_char | ("\\x" > hex2) | (char_ - '\''))] > '\'';
auto const double_quoted_string = x3::rule<class double_quoted_string, std::string> {} = lit('"') >> no_skip[*(unesc_char | ("\\x" > hex2) | (char_ - '"'))] > '"';
auto const quoted_string = x3::rule<class quoted_string, std::string> {} = single_quoted_string | double_quoted_string;
//auto const double_quoted_string = x3::rule<class double_quoted_string, std::string> {} = lit('"') >> no_skip[*(unesc_char | ("\\x" > hex2) | (char_ - '"'))] > '"';
auto const quoted_string = x3::rule<class quoted_string, std::string> {} = single_quoted_string | double_quoted;//_string;
auto const unquoted_ustring = x3::rule<class ustring, std::string> {} = no_skip[alpha > *alnum] - lit("not");