From 4ee5ce10131f47924a33d0af59878b9deb098a10 Mon Sep 17 00:00:00 2001
From: Alex Zolotarev <deathbaba@gmail.com>
Date: Fri, 1 Apr 2011 03:09:07 +0100
Subject: Added osm country borders generation and used them when building
 planet

---
 generator/osm_xml_parser.hpp | 138 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 generator/osm_xml_parser.hpp

(limited to 'generator/osm_xml_parser.hpp')

diff --git a/generator/osm_xml_parser.hpp b/generator/osm_xml_parser.hpp
new file mode 100644
index 0000000000..09e63076ea
--- /dev/null
+++ b/generator/osm_xml_parser.hpp
@@ -0,0 +1,138 @@
+#pragma once
+
+#include "../base/exception.hpp"
+
+#include "../geometry/point2d.hpp"
+
+#include "../std/vector.hpp"
+#include "../std/map.hpp"
+#include "../std/set.hpp"
+#include "../std/string.hpp"
+
+namespace osm
+{
+  typedef int64_t OsmId;
+  typedef vector<OsmId> OsmIds;
+
+  typedef pair<string, string> OsmTag;
+  typedef vector<OsmTag> OsmTags;
+
+  struct RelationMember
+  {
+    OsmId m_ref;
+    string m_type;
+    string m_role;
+  };
+  typedef vector<RelationMember> RelationMembers;
+
+  class OsmIdAndTagHolder
+  {
+    OsmId m_id;
+    OsmTags m_tags;
+
+  public:
+    OsmIdAndTagHolder(OsmId id, OsmTags const & tags);
+    OsmId Id() const { return m_id; }
+    bool TagValueByKey(string const & key, string & outValue) const;
+    template <class TFunctor> void ForEachTag(TFunctor & functor) const
+    {
+      for (OsmTags::const_iterator it = m_tags.begin(); it != m_tags.end(); ++it)
+        functor(*it);
+    }
+  };
+
+  class OsmNode : public OsmIdAndTagHolder
+  {
+  public:
+    double m_lat;
+    double m_lon;
+    OsmNode(OsmId id, OsmTags const & tags, double lat, double lon);
+  };
+
+  class OsmWay : public OsmIdAndTagHolder
+  {
+    OsmIds m_points;
+
+  public:
+    OsmWay(OsmId id, OsmTags const & tags, OsmIds const & pointIds);
+
+    size_t PointsCount() const;
+
+    /// checks if first and last points are equal
+    bool IsClosed() const;
+
+    /// Merges ways if they have one common point
+    /// @warning do not use it where merged way direction is important! (coastlines for example)
+    bool MergeWith(OsmWay const & way);
+
+    template <class TFunctor> void ForEachPoint(TFunctor & functor) const
+    {
+      for (typename OsmIds::const_iterator it = m_points.begin(); it != m_points.end(); ++it)
+        functor(*it);
+    }
+  };
+
+  typedef vector<OsmWay> OsmWays;
+
+  class OsmRelation : public OsmIdAndTagHolder
+  {
+    RelationMembers m_members;
+
+  public:
+    OsmRelation(OsmId id, OsmTags const & tags, RelationMembers const & members);
+    OsmIds MembersByTypeAndRole(string const & type, string const & role) const;
+  };
+
+  class OsmRawData
+  {
+    typedef map<OsmId, OsmNode> nodes_type;
+    nodes_type m_nodes;
+    typedef map<OsmId, OsmWay> ways_type;
+    ways_type m_ways;
+    typedef map<OsmId, OsmRelation> relations_type;
+    relations_type m_relations;
+
+  public:
+    DECLARE_EXCEPTION(OsmInvalidIdException, RootException);
+
+    void AddNode(OsmId id, OsmTags const & tags, double lat, double lon);
+    void AddWay(OsmId id, OsmTags const & tags, OsmIds const & nodeIds);
+    void AddRelation(OsmId id, OsmTags const & tags, RelationMembers const & members);
+
+    OsmNode NodeById(OsmId id) const throw (OsmInvalidIdException);
+    OsmWay WayById(OsmId id) const throw (OsmInvalidIdException);
+    OsmRelation RelationById(OsmId id) const throw (OsmInvalidIdException);
+
+    OsmIds RelationsByKey(string const & key) const;
+    OsmIds RelationsByTag(OsmTag const & tag) const;
+  };
+
+  class OsmXmlParser
+  {
+    vector<string> m_xmlTags;
+
+    OsmRawData & m_osmRawData;
+
+    OsmId m_id;
+    double m_lon;
+    double m_lat;
+    /// <tag k="..." v="..."/>
+    string m_k;
+    string m_v;
+    OsmTags m_tags;
+    /// <nd ref="..." />
+    OsmId m_ref;
+    OsmIds m_nds;
+    RelationMember m_member;
+    RelationMembers m_members;
+
+  public:
+    OsmXmlParser(OsmRawData & outData);
+
+    bool Push(string const & element);
+    void Pop(string const & element);
+    void AddAttr(string const & attr, string const & value);
+    void CharData(string const &) {}
+  };
+
+}
-- 
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