sij/mapnik
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

add set_property_from_xml_impl specialization from std::string

Browse source 
( parse as an expression first )
This commit is contained in:
artemp 2014-09-22 12:04:05 +01:00
parent 5db32ab2e2
commit 43c04a72bf
1 changed files with 25 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
include/mapnik/text/properties_util.hpp
View file

@ -68,6 +68,31 @@ struct set_property_from_xml_impl
}
};
template <>
struct set_property_from_xml_impl<std::string,false>
{
using target_type = std::string;
template <typename T1>
static void apply(T1 & val, char const* name, xml_node const& node)
{
try
{
boost::optional<expression_ptr> val_ = node.get_opt_attr<expression_ptr>(name);
if (val_) val = *val_;
}
catch (config_error const& ex)
{
boost::optional<target_type> val_ = node.get_opt_attr<target_type>(name);
if (val_) val = *val_;
else
{
ex.append_context(std::string("set_property_from_xml'"+ std::string(name) + "'"), node);
}
}
}
};
template <typename T0>
struct set_property_from_xml_impl<T0, true>
{