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C++ TextQuery::display_map方法代码示例

本文整理汇总了C++中TextQuery::display_map方法的典型用法代码示例。如果您正苦于以下问题:C++ TextQuery::display_map方法的具体用法?C++ TextQuery::display_map怎么用?C++ TextQuery::display_map使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TextQuery的用法示例。


在下文中一共展示了TextQuery::display_map方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: main

int main(int argc, char **argv)
{

    if (argc != 2) {cerr << "No input file" << endl; return -2;}

    // get a file to read from which user will query words
    ifstream infile;
    if (!open_file(infile, argv[1])) {
        cerr << "No input file!" << endl;
        return -1;
    }
    TextQuery tq;
    tq.read_file(infile);  // builds query map

    // iterate with the user: prompt for a word to find and print results
    string sought;
    do {
        cout << "enter a word against which to search the text.\n"
             << "to quit, enter a single character ==>  ";
        cin  >> sought;

        // stop if hit eof on input or single character entered
        if (!cin || sought.size() < 2) break;

        // find all the occurrences of the users requested string
        vector<TextQuery::location> locs = tq.run_query(sought);

        // report no matches
        if (locs.empty()) {
            cout << "\nSorry. There are no entries for " 
                 << sought << ".\nTry again." << endl;
            continue;
        }
    
        // if the word was found, then print count and all occurrences
        vector<TextQuery::location>::size_type size = locs.size();
        cout << "\n" << sought << " occurs " << size
             << (size == 1 ? " time:" : " times:")
             << "\n" << endl;
    
        // print each line in which the word appeared
        vector<TextQuery::location>::iterator it = locs.begin();
        while (it != locs.end()) {
            cout << "\t(line: "
                 // don't confound user with text lines starting at 0
                 << it->first + 1 << ", pos: " << it->second + 1 << ") "
                 << tq.text_line(it->first) << endl;
            ++it;
         }
    } while (!sought.empty());

    cout << "Ok, bye!" << endl;

    // debugging aid -- look at the map that was built
    tq.display_map();
    return 0;
}
开发者ID:CurvaVita,项目名称:C--------C---Primer--,代码行数:57,代码来源:3ed_querymain.cpp


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