#ifndef SIMPLESEMIEXP_H
#define SIMPLESEMIEXP_H
/////////////////////////////////////////////////////////////////
// simpleSemiExp.h - SemiExp extractor                         //
// ver 1.0                                                     //
// Language:    Visual C++, ver 7.1                            //
// Platform:    Dell Dimension 8300, Windows XP Prof, SP 2     //
// Application: CSE687 prototype for project #1, Spring 2005   //
// Author:      Jim Fawcett, CST 2-187, Syracuse University    //
//              (315) 443-3948, jfawcett@twcny.rr.com          //
/////////////////////////////////////////////////////////////////
/*
 * Module Operations
 * -----------------
 * A SemiExpression is a sequence of tokens ending in ";", "{", "}",
 * or newline if first token is "#".  This sequence is designed to 
 * be enough to detect some grammatical construct, like function
 * definition, without getting tokens that participate in other 
 * constructs.
 *
 * Public Interface
 * ----------------
 * istringstream in("set of tokens");
 * SimpleToker toker(in);     // construct with any stream
 * SimpleSemiExp semi(toker); // pass toker to semi object
 * while(semi.good())         // good tests stream state
 *   semi.get();              // extracts sequence of tokens
 * string tok = semi[1];      // looks at 2nd token in sequence
 * int pos = semi.find(tok);  // looks for tok in sequence
 * int len = semi.length();   // returns number of tokens
 *
 */
/* Build Process
 * -------------
 * Required Files:
 *   SimpleSemiExp.h, SimpleSemiExp.cpp, SimpleToker.h SimpleToker.cpp
 * Compile Command:
 *   cl /DTEST_SIMPLESEMIEXP SimpleSemiExp.cpp SimpleToker.cpp
 *
 * Maintenance History
 * -------------------
 * ver 1.0 : 23 Jan 05
 * - first release
 *
 */
//
#include <vector>
#include "..\\SimpleToker\\SimpleToker.h"

class SimpleSemiExp
{
public:
  SimpleSemiExp(SimpleToker &toker);
  void get();
  std::string& operator[](int i);
  std::string operator[](int i) const;
  unsigned int length() const;
  unsigned int find(const std::string &tok) const;
  std::string last() const;
  bool good();
private:
  SimpleToker* pToker;
  std::vector<std::string> semi;
};

inline unsigned int SimpleSemiExp::length() const { return semi.size(); }

inline bool SimpleSemiExp::good() { return pToker->good(); }

void show(const SimpleSemiExp &se);

#endif