109 lines
3.3 KiB
C++
109 lines
3.3 KiB
C++
/***************************************************************************
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* Copyright (C) 2008-2012 by Andrzej Rybczak *
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* electricityispower@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include <cassert>
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#include <cwctype>
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#include <algorithm>
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#include "utility/string.h"
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bool isInteger(const char *s, bool accept_signed)
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{
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assert(s);
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if (*s == '\0')
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return false;
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for (const char *it = s; *it != '\0'; ++it)
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if (!(isdigit(*it) || (accept_signed && it == s && *it == '-')))
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return false;
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return true;
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}
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std::string getBasename(const std::string &path)
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{
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size_t slash = path.rfind("/");
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if (slash == std::string::npos)
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return path;
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else
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return path.substr(slash+1);
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}
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std::string getParentDirectory(const std::string &path)
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{
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size_t slash = path.rfind('/');
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if (slash == std::string::npos)
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return "/";
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else
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return path.substr(0, slash);
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}
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std::string getSharedDirectory(const std::string &dir1, const std::string &dir2)
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{
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size_t i = 0;
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size_t min_len = std::min(dir1.length(), dir2.length());
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while (i < min_len && !dir1.compare(i, 1, dir2, i, 1))
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++i;
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i = dir1.rfind("/", i);
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if (i == std::string::npos)
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return "/";
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else
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return dir1.substr(0, i);
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}
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std::string getEnclosedString(const std::string &s, char a, char b, size_t *pos)
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{
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std::string result;
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size_t i = s.find(a, pos ? *pos : 0);
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if (i != std::string::npos)
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{
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++i;
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while (i < s.length() && s[i] != b)
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{
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if (s[i] == '\\' && i+1 < s.length() && (s[i+1] == '\\' || s[i+1] == b))
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result += s[++i];
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else
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result += s[i];
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++i;
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}
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// we want to set pos to char after b if possible
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if (i < s.length())
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++i;
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else // we reached end of string and didn't encounter closing char
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result.clear();
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}
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if (pos != 0)
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*pos = i;
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return result;
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}
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void removeInvalidCharsFromFilename(std::string &filename)
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{
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const char *unallowed_chars = "\"*/:<>?\\|";
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for (const char *c = unallowed_chars; *c; ++c)
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{
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for (size_t i = 0; i < filename.length(); ++i)
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{
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if (filename[i] == *c)
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{
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filename.erase(filename.begin()+i);
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--i;
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}
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}
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}
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}
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