C++ (Cpp) expression_string示例

示例#1

文件： expression_string.cpp 项目： novldp/mapnik

    void operator() (binary_node<Tag> const& x) const
    {
        if (x.type() != tags::mult::str() && x.type() != tags::div::str())
        {
            str_ += "(";
        }

        boost::apply_visitor(expression_string(str_),x.left);
        str_ += x.type();
        boost::apply_visitor(expression_string(str_),x.right);
        if (x.type() != tags::mult::str() && x.type() != tags::div::str())
        {
            str_ += ")";
        }
    }

示例#2

文件： expression_string.cpp 项目： novldp/mapnik

 void operator() (unary_node<Tag> const& x) const
 {
     str_ += Tag::str();
     str_ += "(";
     boost::apply_visitor(expression_string(str_),x.expr);
     str_ += ")";
 }

示例#3

文件： expression_string.cpp 项目： BenMoores/mapnik-trunk

    void operator() (regex_match_node const & x) const
    {
// TODO - replace with pre ICU 4.2 compatible fromUTF32()
#if (U_ICU_VERSION_MAJOR_NUM >= 4) && (U_ICU_VERSION_MINOR_NUM >=2)
        boost::apply_visitor(expression_string(str_),x.expr);
        str_ +=".match('";
        std::string utf8;
        UnicodeString ustr = UnicodeString::fromUTF32( &x.pattern.str()[0] ,x.pattern.str().length());
        to_utf8(ustr,utf8);
        str_ += utf8;
        str_ +="')";
#endif
    }

示例#4

文件： expression_string.cpp 项目： novldp/mapnik

    void operator() (regex_match_node const & x) const
    {
        boost::apply_visitor(expression_string(str_),x.expr);
        str_ +=".match('";
#if defined(BOOST_REGEX_HAS_ICU)
        std::string utf8;
        UnicodeString ustr = UnicodeString::fromUTF32( &x.pattern.str()[0] ,x.pattern.str().length());
        to_utf8(ustr,utf8);
        str_ += utf8;
#else
        str_ += x.pattern.str();
#endif
        str_ +="')";
    }

示例#5

文件： expression_string.cpp 项目： FlavioFalcao/mapnik

    void operator() (regex_replace_node const & x) const
    {
        boost::apply_visitor(expression_string(str_),x.expr);
        str_ +=".replace(";
        str_ += "'";
#if defined(BOOST_REGEX_HAS_ICU)
        std::string utf8;
        mapnik::value_unicode_string ustr = mapnik::value_unicode_string::fromUTF32( &x.pattern.str()[0] ,x.pattern.str().length());
        to_utf8(ustr,utf8);
        str_ += utf8;
        str_ +="','";
        to_utf8(x.format ,utf8);
        str_ += utf8;
#else
        str_ += x.pattern.str();
        str_ +="','";
        str_ += x.format;
#endif
        str_ +="')";
    }