Lexesis/examples/leopard/main.cpp

54 lines
2.0 KiB
C++

/*
* Lexesis - A language agnostic lexical analyser generator
* Copyright © 2016-2017 Thomas Avé, Robin Jadoul
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "Lexer.h"
#include <iostream>
int main() {
Lexer lex(std::cin);
try {
while (true) {
Lexer::Token tok = lex.nextToken();
switch (tok.type) {
case Lexer::KEYBOARD_CAP:
std::cout << "Leopard";
break;
case Lexer::KEYBOARD:
std::cout << "leopard";
break;
case Lexer::OTHER:
std::cout << tok.content;
break;
case Lexer::nonmatching: case Lexer::ignore:
std::cout << "Impossible" << std::endl;
break; //These can never occur, just to satisfy the compiler...
}
}
}
catch (Lexer::NoMatch& err) {
std::cout << "Impossible" << std::endl;
}
catch (Lexer::NoMoreTokens& err) {
}
}