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/* -*- C++ -*- */
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#include <iostream>
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#include <string>
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#include <vector>
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#include <list>
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#include <map>
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#include <lemon/error.h>
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#include <lemon/xy.h>
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namespace lemon {
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class XmlWriter
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{
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std::ostream& os;
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int level;
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protected:
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void indent(int level) {
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os << std::endl;
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for(int i=0;i<level;i++) os << ' ';
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}
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void tag(const std::string &_tag) {
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os << '<' << _tag << '>';
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}
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void etag(const std::string &_tag) {
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os << "</" << _tag << '>';
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}
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void itag(const std::string &_tag) { indent();tag(_tag); }
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void ietag(const std::string &_tag) { indent();etag(_tag); }
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void beginTag(const std::string &_tag) {
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itag(_tag);
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level++;
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}
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void endTag(const std::string &_tag) {
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level--;
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ietag(_tag);
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}
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public:
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void indent()
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{
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if(level>=0) indent(level);
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else level=0;
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}
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///\e
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///\e
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///
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class ContTag
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{
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XmlWriter &ix;
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const std::string _tag;
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public:
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///\e
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///\e
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///
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ContTag(XmlWriter &_ix,const std::string &_t) :
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ix(_ix), _tag(_t)
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{
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ix.tag(_tag);
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}
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~ContTag() { ix.etag(_tag);}
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};
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class LineTag
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{
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XmlWriter &ix;
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const std::string _tag;
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public:
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///\e
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///\e
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///
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LineTag(XmlWriter &_ix,const std::string &_t) :
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ix(_ix), _tag(_t)
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{
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ix.itag(_tag);
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}
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~LineTag() { ix.etag(_tag);}
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};
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///\e
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///\e
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///
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class Tag
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{
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XmlWriter &ix;
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const std::string _tag;
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public:
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///\e
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///\e
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///
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Tag(XmlWriter &_ix,const std::string &_t) :
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ix(_ix), _tag(_t)
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{
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ix.beginTag(_tag);
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}
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~Tag() {
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ix.endTag(_tag);
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}
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};
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///\e
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///\e
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///
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XmlWriter(std::ostream& _os) : os(_os),level(-1) {}
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~XmlWriter() { os<< std::endl; }
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XmlWriter &operator()(int v)
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{
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os << v;
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return *this;
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}
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XmlWriter &operator()(const std::string &_tag,int v)
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{
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LineTag t(*this,_tag);
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(*this)(v);
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return *this;
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}
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XmlWriter &operator()(double v)
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{
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os << v;
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return *this;
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}
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XmlWriter &operator()(const std::string &_tag,double v)
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{
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LineTag t(*this,_tag);
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(*this)(v);
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return *this;
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}
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XmlWriter &operator()(const std::string &v)
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{
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for(std::string::const_iterator i=v.begin();i!=v.end();++i)
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switch(*i) {
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case '\\':
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os << "\\\\";
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break;
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case '<':
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os << "\\<";
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break;
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case '&':
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os << "\\&";
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break;
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case '\n':
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os << "\\n";
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break;
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default:
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os<<*i;
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break;
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}
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return *this;
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}
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XmlWriter &operator()(const std::string &_tag,const std::string &v)
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{
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LineTag t(*this,_tag);
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(*this)(v);
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return *this;
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}
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///\e
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///\e
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///
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template<class V>
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XmlWriter &operator()(const std::string &_tag,const V &v)
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{
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Tag t(*this,_tag);
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out(*this,v);
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return *this;
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}
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///\e
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///\e
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///
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template<class V>
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XmlWriter &operator()(const V &v)
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{
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out(*this,v);
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return *this;
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}
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};
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//////////////////////////////////////////////////////////////////////
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class XmlReader
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{
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std::istream& is;
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std::string next_tag;
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int line_number;
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void skipWhiteSpaces()
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{
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char c;
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while (is.get(c) && std::isspace(c,is.getloc())) if(c=='\n') line_number++;
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is.unget();
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}
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protected:
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///\e
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///\e
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///
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void useTag() {next_tag.clear();}
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void useTag(const std::string &_tag) {
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if(nextTag()==_tag) useTag();
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else throw DataFormatError("",line_number,"Unexpected token name");
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}
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public:
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///\e
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///\e
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///
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const std::string &nextTag()
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{
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if(next_tag.empty()) {
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char c;
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skipWhiteSpaces();
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if(!is.get(c) || c!='<')
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throw DataFormatError("",line_number,"Bad token");
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next_tag.clear();
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while (is.get(c) && c!='>') next_tag.push_back(c);
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if(c!='>')
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throw DataFormatError("",line_number,"Bad token");
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}
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return next_tag;
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}
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///\e
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///\e
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///
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class Tag
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{
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XmlReader &ix;
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const std::string tag;
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public:
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///\e
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///\e
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///
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Tag(XmlReader &_ix,const std::string &_tag) :
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ix(_ix), tag(_tag)
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{
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ix.useTag(_tag);
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}
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~Tag() {
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if(!std::uncaught_exception())
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ix.useTag('/'+tag);
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}
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};
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///\e
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///\e
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///
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XmlReader(std::istream& _is) : is(_is), line_number(1) {}
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int operator()(const std::string &tag,int &v)
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{
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Tag t(*this,tag);
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skipWhiteSpaces();
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if(!(is >> v)) throw DataFormatError("",line_number,"Not an 'int'");
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return v;
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}
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double operator()(const std::string &tag,double &v)
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{
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Tag t(*this,tag);
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skipWhiteSpaces();
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if(!(is >> v))
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throw DataFormatError("",line_number,"Not a 'double'");
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return v;
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}
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std::string &operator()(const std::string &tag,std::string &v)
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{
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alpar@39
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Tag t(*this,tag);
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v.clear();
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char c;
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alpar@39
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while (is.get(c) && c!='<')
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if(c=='\\')
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if(!is.get(c))
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throw DataFormatError("",line_number,"Bad string");
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else switch(c) {
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case 'n':
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v.push_back('\n');
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break;
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default:
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v.push_back(c);
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break;
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alpar@39
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}
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alpar@39
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else {
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if(c=='\n') line_number++;
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v.push_back(c);
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}
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alpar@39
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if(c!='<')
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throw DataFormatError("",line_number,"Unexpected eof");
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alpar@39
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is.unget();
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alpar@39
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304 |
return v;
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alpar@39
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305 |
}
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alpar@39
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306 |
///\e
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alpar@39
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alpar@39
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308 |
///\e
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alpar@39
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309 |
///
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alpar@39
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310 |
template<class V>
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alpar@39
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311 |
V &operator()(const std::string &tag,V &v)
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alpar@39
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{
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alpar@39
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Tag t(*this,tag);
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alpar@39
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314 |
in(*this,v);
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alpar@39
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315 |
return v;
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alpar@39
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316 |
}
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alpar@39
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317 |
///\e
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alpar@39
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alpar@39
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319 |
///\e
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alpar@39
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///
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alpar@39
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321 |
template<class V>
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alpar@39
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322 |
V &operator()(V &v)
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alpar@39
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{
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alpar@39
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324 |
in(*this,v);
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alpar@39
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325 |
return v;
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alpar@39
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}
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alpar@39
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///\e
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alpar@39
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alpar@39
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329 |
///\e
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alpar@39
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///
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alpar@39
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331 |
template<class V>
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332 |
V load(const std::string &tag)
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alpar@39
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{
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alpar@39
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Tag t(*this,tag);
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alpar@39
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V v;
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alpar@39
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(*this)(tag,v);
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return v;
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alpar@2
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}
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alpar@2
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};
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alpar@2
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alpar@39
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341 |
//////////////////////////////////////////////////////////////////////
|
alpar@39
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342 |
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alpar@39
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343 |
template<class A>
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alpar@39
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344 |
void out(XmlWriter &x,const std::auto_ptr<A> &v)
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alpar@39
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345 |
{
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alpar@39
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346 |
x(*v);
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alpar@39
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347 |
}
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alpar@39
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348 |
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alpar@39
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349 |
template<class A>
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alpar@39
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350 |
void in(XmlReader &x,std::auto_ptr<A> &v)
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alpar@39
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351 |
{
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alpar@39
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352 |
v=new A;
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alpar@39
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353 |
x(*v);
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alpar@39
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354 |
}
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alpar@39
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355 |
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alpar@39
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356 |
//////////////////////////////
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alpar@39
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357 |
|
alpar@39
|
358 |
template<class A,class B>
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alpar@39
|
359 |
void out(XmlWriter &x,const std::pair<A,B> &v)
|
alpar@39
|
360 |
{
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alpar@39
|
361 |
x("first",v.first);
|
alpar@39
|
362 |
x("second",v.second);
|
alpar@39
|
363 |
}
|
alpar@39
|
364 |
|
alpar@39
|
365 |
template<class A,class B>
|
alpar@39
|
366 |
void in(XmlReader &x,std::pair<A,B> &v)
|
alpar@39
|
367 |
{
|
alpar@39
|
368 |
x("first",v.first);
|
alpar@39
|
369 |
x("second",v.second);
|
alpar@39
|
370 |
}
|
alpar@39
|
371 |
|
alpar@39
|
372 |
//////////////////////////////
|
alpar@39
|
373 |
|
alpar@39
|
374 |
template<class T>
|
alpar@39
|
375 |
void out(XmlWriter &x,const std::list<T> &v)
|
alpar@39
|
376 |
{
|
alpar@39
|
377 |
for(typename std::list<T>::const_iterator it=v.begin();
|
alpar@39
|
378 |
it!=v.end();++it) x("item",*it);
|
alpar@39
|
379 |
}
|
alpar@39
|
380 |
|
alpar@39
|
381 |
template<class T>
|
alpar@39
|
382 |
void in(XmlReader &x,std::list<T> &v)
|
alpar@39
|
383 |
{
|
alpar@39
|
384 |
while(x.nextTag()=="item")
|
alpar@39
|
385 |
{
|
alpar@39
|
386 |
v.push_back(T());
|
alpar@39
|
387 |
x("item",v.back());
|
alpar@39
|
388 |
}
|
alpar@39
|
389 |
}
|
alpar@39
|
390 |
|
alpar@39
|
391 |
//////////////////////////////
|
alpar@39
|
392 |
|
alpar@39
|
393 |
template<class T>
|
alpar@39
|
394 |
void out(XmlWriter &x,const std::vector<T> &v)
|
alpar@39
|
395 |
{
|
alpar@39
|
396 |
for(typename std::vector<T>::const_iterator it=v.begin();
|
alpar@39
|
397 |
it!=v.end();++it) x("item",*it);
|
alpar@39
|
398 |
}
|
alpar@39
|
399 |
|
alpar@39
|
400 |
template<class T>
|
alpar@39
|
401 |
void in(XmlReader &x,std::vector<T> &v)
|
alpar@39
|
402 |
{
|
alpar@39
|
403 |
while(x.nextTag()=="item")
|
alpar@39
|
404 |
{
|
alpar@39
|
405 |
v.push_back(T());
|
alpar@39
|
406 |
x("item",v.back());
|
alpar@39
|
407 |
}
|
alpar@39
|
408 |
}
|
alpar@39
|
409 |
|
alpar@39
|
410 |
//////////////////////////////
|
alpar@39
|
411 |
|
alpar@39
|
412 |
template<class K,class V>
|
alpar@39
|
413 |
void out(XmlWriter &x,const std::map<K,V> &v)
|
alpar@39
|
414 |
{
|
alpar@39
|
415 |
for(typename std::map<K,V>::const_iterator it=v.begin();
|
alpar@39
|
416 |
it!=v.end();++it) x("item",*it);
|
alpar@39
|
417 |
}
|
alpar@39
|
418 |
|
alpar@39
|
419 |
template<class K,class V>
|
alpar@39
|
420 |
void in(XmlReader &x,std::map<K,V> &v)
|
alpar@39
|
421 |
{
|
alpar@39
|
422 |
while(x.nextTag()=="item")
|
alpar@39
|
423 |
{
|
alpar@39
|
424 |
typename std::map<K,V>::value_type it;
|
alpar@39
|
425 |
x("item",it);
|
alpar@39
|
426 |
v.insert(it);
|
alpar@39
|
427 |
}
|
alpar@39
|
428 |
}
|
alpar@39
|
429 |
|
alpar@39
|
430 |
//////////////////////////////
|
alpar@39
|
431 |
|
alpar@39
|
432 |
template<class T>
|
alpar@39
|
433 |
void out(XmlWriter &x,const lemon::xy<T> &v)
|
alpar@39
|
434 |
{
|
alpar@39
|
435 |
// x("x",v.x);
|
alpar@39
|
436 |
// x("y",v.y);
|
alpar@39
|
437 |
{ XmlWriter::LineTag t(x,"x"); x(v.x); }
|
alpar@39
|
438 |
{ XmlWriter::ContTag t(x,"y"); x(v.y); }
|
alpar@39
|
439 |
}
|
alpar@39
|
440 |
|
alpar@39
|
441 |
template<class T>
|
alpar@39
|
442 |
void in(XmlReader &x,lemon::xy<T> &v)
|
alpar@39
|
443 |
{
|
alpar@39
|
444 |
x("x",v.x);
|
alpar@39
|
445 |
x("y",v.y);
|
alpar@39
|
446 |
}
|
alpar@39
|
447 |
|
alpar@39
|
448 |
//////////////////////////////
|
alpar@39
|
449 |
|
alpar@39
|
450 |
template<class T>
|
alpar@39
|
451 |
void out(XmlWriter &x,const lemon::BoundingBox<T> &v)
|
alpar@39
|
452 |
{
|
alpar@39
|
453 |
if(!v.empty()) {
|
alpar@39
|
454 |
x("point",v.bottomLeft());
|
alpar@39
|
455 |
if(v.bottomLeft()!=v.topRight()) x("point",v.topRight());
|
alpar@39
|
456 |
}
|
alpar@39
|
457 |
}
|
alpar@39
|
458 |
|
alpar@39
|
459 |
template<class T>
|
alpar@39
|
460 |
void in(XmlReader &x,lemon::BoundingBox<T> &v)
|
alpar@39
|
461 |
{
|
alpar@39
|
462 |
v.clear();
|
alpar@39
|
463 |
while(x.nextTag()=="point") {
|
alpar@39
|
464 |
lemon::xy<T> co;
|
alpar@39
|
465 |
x("point",co);
|
alpar@39
|
466 |
v.add(co);
|
alpar@39
|
467 |
}
|
alpar@39
|
468 |
}
|
alpar@2
|
469 |
|
alpar@2
|
470 |
}
|