[BUGFIX] Fix crash in parser.

[ginac.git] / check / parser_bugs.cpp

diff --git a/check/parser_bugs.cpp b/check/parser_bugs.cpp
deleted file mode 100644 (file)
index 7fceb85..0000000
--- a/check/parser_bugs.cpp
+++ /dev/null
@@ -1,115 +0,0 @@
-/** @file parser_bugs.cpp
- *
- *  Check for some silly bugs in the parser. */
-
-/*
- *  GiNaC Copyright (C) 1999-2015 Johannes Gutenberg University Mainz, Germany
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include "ginac.h"
-using namespace GiNaC;
-
-#include <iostream>
-#include <sstream>
-#include <stdexcept>
-#include <string>
-
-// - a - b was misparsed as -a + b due to a bug in parser::parse_unary_expr()
-static int check1(std::ostream& err_str)
-{
-       const std::string srep("-a-b");
-       parser reader;
-       ex e = reader(srep);
-       ex a = reader.get_syms()["a"];
-       ex b = reader.get_syms()["b"];
-       ex g = - a - b;
-       ex d = (e - g).expand();
-       if (!d.is_zero()) {
-               err_str << "\"" << srep << "\" was misparsed as \""
-                       << e << "\"" << std::endl;
-               return 1;
-       }
-       return 0;
-}
-
-/// Parser was rejecting the valid expression '5 - (3*x)/10'.
-static int check2(std::ostream& err_str)
-{
-       const std::string srep("5-(3*x)/10");
-       parser reader;
-       ex e = reader(srep);
-       ex x = reader.get_syms()["x"];
-       ex g = 5 - (3*x)/10;
-       ex d = (e - g).expand();
-       if (!d.is_zero()) {
-               err_str << "\"" << srep << "\" was misparsed as \""
-                       << e << "\"" << std::endl;
-               return 1;
-       }
-       return 0;
-}
-
-/// parse_literal_expr forget to consume the token, so parser get
-/// very confused.
-static int check3(std::ostream& err_str)
-{
-       const std::string srep("5-(2*I)/3");
-       parser reader;
-       ex e = reader(srep);
-       ex g = numeric(5) - (numeric(2)*I)/3;
-       ex d = (e - g).expand();
-       if (!d.is_zero()) {
-               err_str << "\"" << srep << "\" was misparsed as \""
-                       << e << "\"" << std::endl;
-               return 1;
-       }
-       return 0;
-}
-
-/// parser happily accepted various junk like 'x^2()+1'
-static int check4(std::ostream& err_str)
-{
-       const std::string junk("x^2()+1");
-       parser reader;
-       ex e;
-       try {
-               e = reader(junk);
-               err_str << "parser accepts junk: \"" << junk << "\"" << std::endl;
-               return 1;
-       } catch (parse_error& err) {
-               // Ok, parser rejects the nonsense.
-               return 0;
-       }
-}
-
-int main(int argc, char** argv)
-{
-       std::cout << "checking for parser bugs. " << std::flush;
-       std::ostringstream err_str;
-       int errors = 0;
-       errors += check1(err_str);
-       errors += check2(err_str);
-       errors += check3(err_str);
-       errors += check4(err_str);
-       if (errors) {
-               std::cout << "Yes, unfortunately:" << std::endl;
-               std::cout << err_str.str();
-       } else {
-               std::cout << "Not found. ";
-       }
-       return errors;
-}