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pathspecification.h

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#ifndef ___PATHSPECIFICATION_H___
#define ___PATHSPECIFICATION_H___

#include "stringutils.h"
#include "stringparser.h"



class PathSpecification {
public:
  typedef StringParser::arglist NameList;

  PathSpecification(const string& s)
    : rooted(s.length()>=2 && s[0]==':' && s[1]==':')
    {
      assert (String::replace_all(s,string(" "),string("")) == s);
      const string with_spaces = String::replace_all(s,string("::"),string(" "));
      
      /* Break into a vector */
      StringParser sp;
      sp.parse(with_spaces,names);
    }

  const string last() const
    {  return (names.empty()? string() : names.back());  }

  const string first() const
    {  return (names.empty()? string() : names.front());  }

  const bool  isrooted() const {  return rooted;  }

  const NameList& all() const
    {  return names; }

  const NameList allbutlast() const {
    return (names.begin()==names.end()? NameList() : 
            NameList(names.begin(),names.end()-1));
  }

private:
  NameList names;
  bool rooted;
};


  
#endif /* ___PATHSPECIFICATION_H___ */

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