1 | /*=============================================================================
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2 | Copyright (c) 2001-2007 Hartmut Kaiser
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3 | Copyright (c) 2001-2003 Daniel Nuffer
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4 | http://spirit.sourceforge.net/
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5 |
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6 | Use, modification and distribution is subject to the Boost Software
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7 | License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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8 | http://www.boost.org/LICENSE_1_0.txt)
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9 | =============================================================================*/
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10 |
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11 | #if !defined(TREE_TO_XML_IPP)
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12 | #define TREE_TO_XML_IPP
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13 |
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14 | #include <cstdio>
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15 | #include <cstdarg>
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16 | #include <locale>
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17 |
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18 | #include <map>
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19 | #include <iostream>
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20 | #include <boost/config.hpp>
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21 | #ifdef BOOST_NO_STRINGSTREAM
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22 | #include <strstream>
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23 | #define BOOST_SPIRIT_OSSTREAM std::ostrstream
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24 | inline
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25 | std::string BOOST_SPIRIT_GETSTRING(std::ostrstream& ss)
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26 | {
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27 | ss << ends;
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28 | std::string rval = ss.str();
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29 | ss.freeze(false);
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30 | return rval;
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31 | }
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32 | #else
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33 | #include <sstream>
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34 | #define BOOST_SPIRIT_GETSTRING(ss) ss.str()
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35 | #define BOOST_SPIRIT_OSSTREAM std::basic_ostringstream<CharT>
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36 | #endif
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37 |
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38 | namespace boost { namespace spirit {
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39 |
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40 | namespace impl {
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41 |
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42 | ///////////////////////////////////////////////////////////////////////////
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43 | template <typename CharT>
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44 | struct string_lit;
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45 |
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46 | template <>
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47 | struct string_lit<char>
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48 | {
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49 | static char get(char c) { return c; }
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50 | static std::string get(char const* str = "") { return str; }
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51 | };
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52 |
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53 | template <>
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54 | struct string_lit<wchar_t>
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55 | {
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56 | static wchar_t get(char c)
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57 | {
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58 | typedef std::ctype<wchar_t> ctype_t;
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59 | return std::use_facet<ctype_t>(std::locale()).widen(c);
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60 | }
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61 | static std::wstring get(char const* source = "")
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62 | {
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63 | typedef std::ctype<wchar_t> ctype_t;
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64 |
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65 | using namespace std; // some systems have size_t in ns std
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66 | size_t len = strlen(source);
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67 | std::auto_ptr<wchar_t> result (new wchar_t[len+1]);
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68 | result.get()[len] = '\0';
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69 | std::use_facet<ctype_t>(std::locale())
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70 | .widen(source, source + len, result.get());
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71 |
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72 | return result.get();
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73 | }
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74 | };
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75 | }
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76 |
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77 | // xml formatting helper classes
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78 | namespace xml {
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79 |
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80 | template <typename CharT>
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81 | inline void
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82 | encode (std::basic_string<CharT> &str, char s, char const *r, int len)
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83 | {
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84 | typedef typename std::basic_string<CharT>::size_type size_type;
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85 |
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86 | size_type pos = 0;
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87 | while ((pos = str.find_first_of (impl::string_lit<CharT>::get(s), pos)) !=
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88 | size_type(std::basic_string<CharT>::npos))
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89 | {
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90 | str.replace (pos, 1, impl::string_lit<CharT>::get(r));
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91 | pos += len;
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92 | }
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93 | }
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94 |
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95 | template <typename CharT>
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96 | inline std::basic_string<CharT>
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97 | encode (std::basic_string<CharT> str)
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98 | {
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99 | encode(str, '&', "&", 5);
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100 | encode(str, '<', "<", 4);
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101 | encode(str, '>', ">", 4);
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102 | encode(str, '\r', "\\r", 2);
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103 | encode(str, '\n', "\\n", 2);
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104 | return str;
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105 | }
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106 |
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107 | template <typename CharT>
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108 | inline std::basic_string<CharT>
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109 | encode (CharT const *text)
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110 | {
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111 | return encode (std::basic_string<CharT>(text));
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112 | }
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113 |
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114 | // format a xml attribute
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115 | template <typename CharT>
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116 | struct attribute
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117 | {
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118 | attribute()
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119 | {
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120 | }
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121 |
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122 | //attribute (CharT const *key_, CharT const *value_) :
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123 | attribute ( const std::basic_string<CharT>& key_,
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124 | const std::basic_string<CharT>& value_) :
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125 | key (key_), value(value_)
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126 | {
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127 | }
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128 |
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129 | bool has_value()
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130 | {
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131 | return value.size() > 0;
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132 | }
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133 |
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134 | std::basic_string<CharT> key;
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135 | std::basic_string<CharT> value;
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136 | };
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137 |
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138 | template <typename CharT>
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139 | inline std::basic_ostream<CharT>&
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140 | operator<< (std::basic_ostream<CharT> &ostrm, attribute<CharT> const &attr)
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141 | {
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142 | if (0 == attr.key.size())
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143 | return ostrm;
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144 | ostrm << impl::string_lit<CharT>::get(" ") << encode(attr.key)
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145 | << impl::string_lit<CharT>::get("=\"") << encode(attr.value)
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146 | << impl::string_lit<CharT>::get("\"");
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147 | return ostrm;
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148 | }
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149 |
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150 | // output a xml element (base class, not used directly)
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151 | template <typename CharT>
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152 | class element
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153 | {
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154 | protected:
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155 | element(std::basic_ostream<CharT> &ostrm_, bool incr_indent_ = true)
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156 | : ostrm(ostrm_), incr_indent(incr_indent_)
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157 | {
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158 | if (incr_indent) ++get_indent();
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159 | }
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160 | ~element()
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161 | {
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162 | if (incr_indent) --get_indent();
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163 | }
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164 |
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165 | public:
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166 | void output_space ()
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167 | {
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168 | for (int i = 0; i < get_indent(); i++)
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169 | ostrm << impl::string_lit<CharT>::get(" ");
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170 | }
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171 |
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172 | protected:
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173 | int &get_indent()
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174 | {
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175 | static int indent;
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176 |
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177 | return indent;
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178 | }
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179 |
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180 | std::basic_ostream<CharT> &ostrm;
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181 | bool incr_indent;
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182 | };
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183 |
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184 | // a xml node
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185 | template <typename CharT>
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186 | class node : public element<CharT>
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187 | {
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188 | public:
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189 | /* node (std::basic_ostream<CharT> &ostrm_, CharT const *tag_,
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190 | attribute<CharT> &attr)*/
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191 | node ( std::basic_ostream<CharT> &ostrm_,
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192 | const std::basic_string<CharT>&tag_,
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193 | attribute<CharT> &attr
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194 | ): element<CharT>(ostrm_), tag(tag_)
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195 | {
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196 | this->output_space();
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197 | this->ostrm
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198 | << impl::string_lit<CharT>::get("<") << tag_ << attr
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199 | << impl::string_lit<CharT>::get(">\n");
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200 | }
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201 | node (std::basic_ostream<CharT> &ostrm_, CharT const *tag_)
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202 | : element<CharT>(ostrm_), tag(tag_)
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203 | {
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204 | this->output_space();
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205 | this->ostrm
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206 | << impl::string_lit<CharT>::get("<") << tag_
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207 | << impl::string_lit<CharT>::get(">\n");
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208 | }
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209 | ~node()
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210 | {
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211 | this->output_space();
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212 | this->ostrm
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213 | << impl::string_lit<CharT>::get("</") << tag
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214 | << impl::string_lit<CharT>::get(">\n");
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215 | }
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216 |
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217 | private:
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218 | std::basic_string<CharT> tag;
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219 | };
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220 |
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221 | template <typename CharT>
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222 | class text : public element<CharT>
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223 | {
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224 | public:
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225 | text (std::basic_ostream<CharT> &ostrm_, const std::basic_string<CharT>& tag,
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226 | const std::basic_string<CharT>& textlit)
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227 | : element<CharT>(ostrm_)
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228 | {
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229 | this->output_space();
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230 | this->ostrm
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231 | << impl::string_lit<CharT>::get("<") << tag
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232 | << impl::string_lit<CharT>::get(">") << encode(textlit)
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233 | << impl::string_lit<CharT>::get("</") << tag
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234 | << impl::string_lit<CharT>::get(">\n");
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235 | }
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236 |
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237 | text (std::basic_ostream<CharT> &ostrm_, const std::basic_string<CharT>& tag,
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238 | const std::basic_string<CharT>& textlit, attribute<CharT> &attr)
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239 | : element<CharT>(ostrm_)
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240 | {
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241 | this->output_space();
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242 | this->ostrm
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243 | << impl::string_lit<CharT>::get("<") << tag << attr
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244 | << impl::string_lit<CharT>::get(">") << encode(textlit)
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245 | << impl::string_lit<CharT>::get("</") << tag
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246 | << impl::string_lit<CharT>::get(">\n");
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247 |
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248 | //need delete
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249 | std::cout.flush();
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250 | }
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251 |
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252 | text (std::basic_ostream<CharT> &ostrm_, const std::basic_string<CharT>& tag,
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253 | const std::basic_string<CharT>& textlit, attribute<CharT> &attr1,
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254 | attribute<CharT> &attr2)
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255 | : element<CharT>(ostrm_)
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256 | {
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257 | this->output_space();
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258 | this->ostrm
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259 | << impl::string_lit<CharT>::get("<") << tag << attr1 << attr2
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260 | << impl::string_lit<CharT>::get(">") << encode(textlit)
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261 | << impl::string_lit<CharT>::get("</") << tag
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262 | << impl::string_lit<CharT>::get(">\n");
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263 | }
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264 | };
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265 |
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266 | // a xml comment
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267 | template <typename CharT>
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268 | class comment : public element<CharT>
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269 | {
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270 | public:
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271 | //comment (std::basic_ostream<CharT> &ostrm_, CharT const *commentlit)
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272 | comment (std::basic_ostream<CharT> &ostrm_, const std::basic_string<CharT>& commentlit)
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273 | : element<CharT>(ostrm_, false)
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274 | {
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275 | if ('\0' != commentlit[0])
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276 | {
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277 | this->output_space();
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278 | this->ostrm << impl::string_lit<CharT>::get("<!-- ")
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279 | << encode(commentlit)
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280 | << impl::string_lit<CharT>::get(" -->\n");
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281 | }
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282 | }
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283 | };
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284 |
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285 | // a xml document
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286 | template <typename CharT>
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287 | class document : public element<CharT>
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288 | {
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289 | public:
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290 | document (std::basic_ostream<CharT> &ostrm_)
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291 | : element<CharT>(ostrm_)
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292 | {
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293 | this->get_indent() = -1;
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294 | this->ostrm << impl::string_lit<CharT>::get(
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295 | "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n");
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296 | }
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297 |
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298 | //document (std::basic_ostream<CharT> &ostrm_, CharT const *mainnode,
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299 | // CharT const *dtd)
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300 | document ( std::basic_ostream<CharT> &ostrm_,
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301 | const std::basic_string<CharT>& mainnode,
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302 | const std::basic_string<CharT>& dtd)
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303 | : element<CharT>(ostrm_)
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304 | {
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305 | this->get_indent() = -1;
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306 | this->ostrm << impl::string_lit<CharT>::get(
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307 | "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n");
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308 |
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309 | this->output_space();
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310 | this->ostrm << impl::string_lit<CharT>::get("<!DOCTYPE ") << mainnode
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311 | << impl::string_lit<CharT>::get(" SYSTEM \"") << dtd
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312 | << impl::string_lit<CharT>::get("\">\n");
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313 | }
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314 | ~document()
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315 | {
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316 | BOOST_SPIRIT_ASSERT(-1 == this->get_indent());
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317 | }
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318 | };
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319 |
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320 | } // end of namespace xml
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321 |
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322 | namespace impl {
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323 |
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324 | ///////////////////////////////////////////////////////////////////////////
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325 | // look up the rule name from the given parser_id
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326 | template <typename AssocContainerT>
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327 | inline typename AssocContainerT::value_type::second_type
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328 | get_rulename (AssocContainerT const &id_to_name_map,
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329 | boost::spirit::parser_id const &id)
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330 | {
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331 | typename AssocContainerT::const_iterator it = id_to_name_map.find(id);
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332 | if (it != id_to_name_map.end())
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333 | return (*it).second;
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334 | typedef typename AssocContainerT::value_type::second_type second_t;
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335 | return second_t();
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336 | }
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337 |
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338 | // dump a parse tree as xml
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339 | template <
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340 | typename CharT, typename IteratorT, typename GetIdT, typename GetValueT
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341 | >
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342 | inline void
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343 | token_to_xml (std::basic_ostream<CharT> &ostrm, IteratorT const &it,
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344 | bool is_root, GetIdT const &get_token_id, GetValueT const &get_token_value)
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345 | {
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346 | BOOST_SPIRIT_OSSTREAM stream;
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347 |
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348 | stream << get_token_id(*it) << std::ends;
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349 | xml::attribute<CharT> token_id (
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350 | impl::string_lit<CharT>::get("id"),
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351 | BOOST_SPIRIT_GETSTRING(stream).c_str());
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352 | xml::attribute<CharT> is_root_attr (
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353 | impl::string_lit<CharT>::get("is_root"),
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354 | impl::string_lit<CharT>::get(is_root ? "1" : ""));
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355 | xml::attribute<CharT> nil;
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356 | xml::text<CharT>(ostrm,
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357 | impl::string_lit<CharT>::get("token"),
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358 | get_token_value(*it).c_str(),
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359 | token_id,
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360 | is_root_attr.has_value() ? is_root_attr : nil);
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361 | }
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362 |
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363 | template <
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364 | typename CharT, typename TreeNodeT, typename AssocContainerT,
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365 | typename GetIdT, typename GetValueT
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366 | >
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367 | inline void
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368 | tree_node_to_xml (std::basic_ostream<CharT> &ostrm, TreeNodeT const &node,
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369 | AssocContainerT const& id_to_name_map, GetIdT const &get_token_id,
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370 | GetValueT const &get_token_value)
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371 | {
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372 | typedef typename TreeNodeT::const_iterator node_iter_t;
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373 | typedef
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374 | typename TreeNodeT::value_type::parse_node_t::const_iterator_t
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375 | value_iter_t;
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376 |
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377 | xml::attribute<CharT> nil;
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378 | node_iter_t end = node.end();
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379 | for (node_iter_t it = node.begin(); it != end; ++it)
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380 | {
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381 | // output a node
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382 | xml::attribute<CharT> id (
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383 | impl::string_lit<CharT>::get("rule"),
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384 | get_rulename(id_to_name_map, (*it).value.id()).c_str());
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385 | xml::node<CharT> currnode (ostrm,
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386 | impl::string_lit<CharT>::get("parsenode"),
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387 | (*it).value.id() != 0 && id.has_value() ? id : nil);
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388 |
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389 | // first dump the value
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390 | std::size_t cnt = std::distance((*it).value.begin(), (*it).value.end());
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391 |
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392 | if (1 == cnt)
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393 | {
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394 | token_to_xml (ostrm, (*it).value.begin(),
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395 | (*it).value.is_root(), get_token_id, get_token_value);
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396 | }
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397 | else if (cnt > 1)
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398 | {
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399 | xml::node<CharT> value (ostrm,
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400 | impl::string_lit<CharT>::get("value"));
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401 | bool is_root = (*it).value.is_root();
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402 |
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403 | value_iter_t val_end = (*it).value.end();
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404 | for (value_iter_t val_it = (*it).value.begin();
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405 | val_it != val_end; ++val_it)
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406 | {
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407 | token_to_xml (ostrm, val_it, is_root, get_token_id,
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408 | get_token_value);
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409 | }
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410 | }
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411 | tree_node_to_xml(ostrm, (*it).children, id_to_name_map,
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412 | get_token_id, get_token_value); // dump all subnodes
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413 | }
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414 | }
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415 |
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416 | template <typename CharT, typename TreeNodeT, typename AssocContainerT>
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417 | inline void
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418 | tree_node_to_xml (std::basic_ostream<CharT> &ostrm, TreeNodeT const &node,
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419 | AssocContainerT const& id_to_name_map)
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420 | {
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421 | typedef typename TreeNodeT::const_iterator node_iter_t;
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422 |
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423 | xml::attribute<CharT> nil;
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424 | node_iter_t end = node.end();
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425 | for (node_iter_t it = node.begin(); it != end; ++it)
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426 | {
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427 | // output a node
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428 | xml::attribute<CharT> id (
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429 | impl::string_lit<CharT>::get("rule"),
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430 | get_rulename(id_to_name_map, (*it).value.id()).c_str());
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431 | xml::node<CharT> currnode (ostrm,
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432 | impl::string_lit<CharT>::get("parsenode"),
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433 | (*it).value.id() != parser_id() && id.has_value() ? id : nil);
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434 |
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435 | // first dump the value
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436 | if ((*it).value.begin() != (*it).value.end())
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437 | {
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438 | std::basic_string<CharT> tokens ((*it).value.begin(), (*it).value.end());
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439 |
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440 | if (tokens.size() > 0)
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441 | {
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442 | // output all subtokens as one string (for better readability)
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443 | xml::attribute<CharT> is_root (
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444 | impl::string_lit<CharT>::get("is_root"),
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445 | impl::string_lit<CharT>::get((*it).value.is_root() ? "1" : ""));
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446 | xml::text<CharT>(ostrm,
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447 | impl::string_lit<CharT>::get("value"), tokens.c_str(),
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448 | is_root.has_value() ? is_root : nil);
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449 | }
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450 |
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451 | }
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452 | // dump all subnodes
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453 | tree_node_to_xml(ostrm, (*it).children, id_to_name_map);
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454 | }
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455 | }
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456 |
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457 | } // namespace impl
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458 |
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459 | ///////////////////////////////////////////////////////////////////////////////
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460 | // dump a parse tree as a xml stream (generic variant)
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461 | template <
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462 | typename CharT, typename TreeNodeT, typename AssocContainerT,
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463 | typename GetIdT, typename GetValueT
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464 | >
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465 | inline void
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466 | basic_tree_to_xml (std::basic_ostream<CharT> &ostrm, TreeNodeT const &tree,
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467 | std::basic_string<CharT> const &input_line, AssocContainerT const& id_to_name,
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468 | GetIdT const &get_token_id, GetValueT const &get_token_value)
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469 | {
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470 | // generate xml dump
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471 | xml::document<CharT> doc (ostrm,
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472 | impl::string_lit<CharT>::get("parsetree"),
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473 | impl::string_lit<CharT>::get("parsetree.dtd"));
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474 | xml::comment<CharT> input (ostrm, input_line.c_str());
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475 | xml::attribute<CharT> ver (
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476 | impl::string_lit<CharT>::get("version"),
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477 | impl::string_lit<CharT>::get("1.0"));
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478 | xml::node<CharT> mainnode (ostrm,
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479 | impl::string_lit<CharT>::get("parsetree"), ver);
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480 |
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481 | impl::tree_node_to_xml (ostrm, tree, id_to_name, get_token_id,
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482 | get_token_value);
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483 | }
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484 |
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485 | // dump a parse tree as a xml steam (for character based parsers)
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486 | template <typename CharT, typename TreeNodeT, typename AssocContainerT>
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487 | inline void
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488 | basic_tree_to_xml (std::basic_ostream<CharT> &ostrm, TreeNodeT const &tree,
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489 | std::basic_string<CharT> const &input_line,
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490 | AssocContainerT const& id_to_name)
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491 | {
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492 | // generate xml dump
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493 | xml::document<CharT> doc (ostrm,
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494 | impl::string_lit<CharT>::get("parsetree"),
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495 | impl::string_lit<CharT>::get("parsetree.dtd"));
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496 | xml::comment<CharT> input (ostrm, input_line.c_str());
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497 | xml::attribute<CharT> ver (
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498 | impl::string_lit<CharT>::get("version"),
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499 | impl::string_lit<CharT>::get("1.0"));
|
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500 | xml::node<CharT> mainnode (ostrm,
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501 | impl::string_lit<CharT>::get("parsetree"), ver);
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502 |
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503 | impl::tree_node_to_xml(ostrm, tree, id_to_name);
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504 | }
|
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505 |
|
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506 | template <typename CharT, typename TreeNodeT>
|
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507 | inline void
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508 | basic_tree_to_xml (std::basic_ostream<CharT> &ostrm, TreeNodeT const &tree,
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509 | std::basic_string<CharT> const &input_line)
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510 | {
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511 | return basic_tree_to_xml<CharT>(ostrm, tree, input_line,
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512 | std::map<boost::spirit::parser_id, std::basic_string<CharT> >());
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513 | }
|
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514 |
|
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515 | }} // namespace boost::spirit
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516 |
|
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517 | #undef BOOST_SPIRIT_OSSTREAM
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518 | #undef BOOST_SPIRIT_GETSTRING
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519 |
|
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520 | #endif // !defined(PARSE_TREE_XML_HPP)
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