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cppregex logo

Cppregex is a very simple, single header file, easy to use C++11 std::regex wrapper for lazy people who just want to use regex in C++ without having to mingle with std::regex boilerplate code. In other words, a simple C++ regex library.

Of course, this requires C++11 to work.

How to use?

Include cppregex.h in your project and you are good to go. This is #include "cppregex.h" for those of us that like to copy & paste.

Examples for every function in the library are written in example.cpp.

Documentation

Cppregex includes the following functions:

  • bool regexMatch(string text, string regex)
    returns true if text matches the regex, false otherwise.

  • bool regexContains(string text, string regex)
    returns true if text contains a substring that matches regex, false otherwise.

  • int regexIndex(string text, string regex)
    returns the position of the first substring of text that matches regex, -1 if none was found.

  • vector<int> regexIndices(string text, string regex)
    returns a vector if ints containing all the positions of the substrings of text that match regex. An empty vector<int> is returned if none was found.

  • pair<int, unsigned int> regexIndexLength(string text, string regex)
    returns the position and length of the first substring of text that matches regex. <-1, 0> is returned if none was found.

  • vector<pair<int, unsigned int>> regexIndicesLengths(string text, string regex)
    returns a vector of pairs of position and length of each substring of text that matches regex. An empty vector<pair<int, unsigned int>> is returned if none was found.

  • string regexSearch(string text, string regex)
    returns the first substring of text that matches regex, "" if none was found.

  • vector<string> regexSearchAll(string text, string regex)
    returns all the substrings of text that match regex, an empty vector<string> is returned if none was found.

  • string regexBefore(string text, string regex)
    returns all the text found in text before a substring that matched regex was found.

  • string regexAfter(string text, string regex)
    returns all the text found in text after a substring that matched regex was found.

  • string regexReplace(string text, string regex, string newValue)
    returns a copy of text with the first substring that matched regex replaced by newValue.

  • string regexReplaceAll(string text, string regex, string newValue)
    returns a copy of text with the every substring that matched regex replaced by newValue.

License

Cppregex is released under the MIT License so you are free to do whatever you want with it. Enjoy!

About

πŸ¦™ Simple, one file, easy to use C++11 std::regex wrapper for lazy people.

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