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/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Computational Engine *
* *
* Copyright (c) 1999-2008, Ben Burton *
* For further details contact Ben Burton (bab@debian.org). *
* *
* 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 St, Fifth Floor, Boston, *
* MA 02110-1301, USA. *
* *
**************************************************************************/
/* end stub */
#include <cstdlib>
#include <cctype>
#include "utilities/stringutils.h"
#include "utilities/nbooleans.h"
#include "utilities/nmpi.h"
namespace regina {
char* duplicate(const std::string& str) {
char* ans = new char[str.length() + 1];
char* pos = ans;
for (std::string::const_iterator it = str.begin(); it != str.end(); it++)
*(pos++) = *it;
*pos = 0;
return ans;
}
bool startsWith(const std::string& str, const std::string& prefix) {
if (str.length() < prefix.length())
return false;
return (str.substr(0, prefix.length()).compare(prefix) == 0);
}
std::string stripWhitespace(const std::string& str) {
std::string::size_type start = 0;
std::string::size_type end = str.length();
while (start < end && isspace(str[start]))
start++;
while (start < end && isspace(str[end - 1]))
end--;
return str.substr(start, end - start);
}
bool valueOf(const std::string& str, int& dest) {
char* endPtr;
dest = strtol(str.c_str(), &endPtr, 10);
return ((! str.empty()) && (*endPtr == 0));
}
bool valueOf(const std::string& str, unsigned& dest) {
char* endPtr;
dest = strtoul(str.c_str(), &endPtr, 10);
return ((! str.empty()) && (*endPtr == 0));
}
bool valueOf(const std::string& str, long& dest) {
char* endPtr;
dest = strtol(str.c_str(), &endPtr, 10);
return ((! str.empty()) && (*endPtr == 0));
}
bool valueOf(const std::string& str, unsigned long& dest) {
char* endPtr;
dest = strtoul(str.c_str(), &endPtr, 10);
return ((! str.empty()) && (*endPtr == 0));
}
bool valueOf(const std::string& str, NLargeInteger& dest) {
bool valid;
dest = NLargeInteger(str.c_str(), 10, &valid);
return valid;
}
bool valueOf(const std::string& str, double& dest) {
char* endPtr;
dest = strtod(str.c_str(), &endPtr);
return ((! str.empty()) && (*endPtr == 0));
}
bool valueOf(const std::string& str, bool& dest) {
if (str.empty()) {
dest = false;
return false;
}
if (str[0] == 't' || str[0] == 'T') {
dest = true;
return true;
}
dest = false;
return (str[0] == 'F' || str[0] == 'f');
}
bool valueOf(const std::string& str, NTriBool& dest) {
if (str.empty()) {
dest.setUnknown();
return false;
}
if (str[0] == 't' || str[0] == 'T' || str == "1") {
dest = true;
return true;
}
if (str[0] == 'f' || str[0] == 'F' || str == "-1") {
dest = false;
return true;
}
dest.setUnknown();
return (str[0] == 'u' || str[0] == 'U' || str == "0");
}
bool valueOf(const std::string& str, NBoolSet& dest) {
if (str.length() != 2) {
dest = NBoolSet::sNone;
return false;
}
char t = str[0];
char f = str[1];
if (t != '-' && t != 'T' && t != 't') {
dest = NBoolSet::sNone;
return false;
}
if (f != '-' && f != 'F' && f != 'f') {
dest = NBoolSet::sNone;
return false;
}
dest = NBoolSet(t != '-', f != '-');
return true;
}
} // namespace regina
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