http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/wvstreams/wvstringmask.h

/* -*- Mode: C++ -*- * Worldvisions Weaver Software: * Copyright (C) 2005 Net Integration Technologies, Inc. * * Implementation of an efficient lookup for a set characters. * * It is, however, a little space intensive, but you should statically * create them in your functions, and then they won't be so bad. */ #ifndef __WVSTRINGMASK_H #define __WVSTRINGMASK_H #include "wvstring.h" /** * A class used to provide a masked lookup for characters in a string. */ class WvStringMask { public: /** * Create a WvStringMask out of a WvString. When looked up, * characters in 's' will return true. */ WvStringMask(WvStringParm s = WvString::null); WvStringMask(char c); /** * Look up a character. This will return true if 'c' is in 'set'. */ bool operator[](const char c) const; bool operator[](const int i) const; /** * Get the first character set into the mask */ const char first() const; /** * Clear the WvStringMask, so that all lookups return false. */ void zap(); /** * Set a character 'c' to a particular truth value. */ void set(const char c, bool value); /** * Set all characters in string 's' to a particular truth value. */ void set(WvStringParm s, bool value); private: bool _set[256]; char _first; }; #endif // __WVSTRINGMASK_H