src/xml.h

   1 /*********************************
   2 ** Tsunagari Tile Engine        **
   3 ** xml.h                        **
   4 ** Copyright 2011-2012 OmegaSDG **
   5 *********************************/
   6
   7 // **********
   8 // Permission is hereby granted, free of charge, to any person obtaining a copy
   9 // of this software and associated documentation files (the "Software"), to
  10 // deal in the Software without restriction, including without limitation the
  11 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  12 // sell copies of the Software, and to permit persons to whom the Software is
  13 // furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in
  16 // all copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  24 // IN THE SOFTWARE.
  25 // **********
  26
  27 #ifndef XML_H
  28 #define XML_H
  29
  30 #include <string>
  31
  32 #include <boost/shared_ptr.hpp>
  33 #include <libxml/tree.h>
  34
  35 #ifndef LIBXML_TREE_ENABLED
  36         #error Tree must be enabled in libxml2
  37 #endif
  38
  39 class XMLDoc;
  40
  41 class XMLNode {
  42 public:
  43         XMLNode();
  44         XMLNode(XMLDoc* doc, xmlNode* node);
  45
  46         XMLNode childrenNode() const;
  47         XMLNode next() const;
  48
  49         bool is(const char* name) const;
  50
  51         std::string content() const;
  52         bool intContent(int* i) const;
  53         bool doubleContent(double* d) const;
  54
  55         bool hasAttr(const std::string& name) const;
  56         std::string attr(const std::string& name) const;
  57         bool intAttr(const std::string& name, int* i) const;
  58         bool doubleAttr(const std::string& name, double* d) const;
  59
  60         //! Whether this is a valid node (non-NULL).
  61         operator bool() const;
  62
  63 private:
  64         XMLDoc* doc;
  65         xmlNode* node;
  66 };
  67
  68 class XMLDoc {
  69 public:
  70         XMLDoc();
  71         bool init(const std::string& path,
  72                   const std::string& data,
  73                   xmlDtd* dtd);
  74
  75         XMLNode root();
  76         xmlNode* temporaryGetRoot() const;
  77         const std::string& path() const;
  78
  79         //! Equivalent to doc::unique();
  80         bool unique() const;
  81
  82         //! Equivalent to doc::use_count().
  83         long use_count() const;
  84
  85         //! Signifies whether document is has been initialized, parsed
  86         //! correctly, and is valid.
  87         operator bool() const;
  88
  89 private:
  90         boost::shared_ptr<xmlDoc> doc;
  91         std::string path_;
  92 };
  93
  94 #endif
  95