streamtokenizer.h

来自「C++编程思想第二版第一册答案」· C头文件 代码 · 共 29 行

//: C20:StreamTokenizer.h
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// C++ Replacement for Standard C strtok()
#ifndef STREAMTOKENIZER_H
#define STREAMTOKENIZER_H
#include <string>
#include <iostream>
#include <iterator>
  
class StreamTokenizer {
  typedef std::istreambuf_iterator<char> It;
  It p, end;
  std::string delimiters;
  bool isDelimiter(char c) {
    return 
      delimiters.find(c) != std::string::npos;
  }
public:
  StreamTokenizer(std::istream& is, 
    std::string delim = " \t\n;()\"<>:{}[]+-=&*#"
    ".,/\\~!0123456789") : p(is), end(It()),
    delimiters(delim) {}
  std::string next(); // Get next token
};
#endif STREAMTOKENIZER_H ///:~