132 lines
4.3 KiB
C++
132 lines
4.3 KiB
C++
// StringUtil.hh for fluxbox
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// Copyright (c) 2001 - 2006 Henrik Kinnunen (fluxgen at fluxbox dot org)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#ifndef FBTK_STRINGUTIL_HH
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#define FBTK_STRINGUTIL_HH
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#include <string>
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#include "stringstream.hh"
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namespace FbTk {
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namespace StringUtil {
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/// Similar to `strstr' but this function ignores the case of both strings
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const char *strcasestr(const char *str, const char *ptn);
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/// expands ~ to value of ${HOME} enviroment variable
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std::string expandFilename(const std::string &filename);
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/// @return extension of filename (ex: filename.txt will return txt)
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std::string findExtension(const std::string &filename);
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/// @return copy of original with find_string replaced with "replace"
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std::string replaceString(const std::string &original,
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const char *find_string,
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const char *replace);
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/// returns string between character first and last
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int getStringBetween(std::string& out, const char *instr,
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char first, char last,
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const char *ok_chars=" \t\n", bool allow_nesting = false);
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/// @return lower case letters of conv
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std::string toLower(const std::string &conv);
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/// @return upper case letters of conv
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std::string toUpper(const std::string &conv);
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#ifdef basename
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#undef basename
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#endif // basename
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std::string basename(const std::string &basename);
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/// removes the first whitespace characters of the string
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std::string::size_type removeFirstWhitespace(std::string &str);
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std::string::size_type removeTrailingWhitespace(std::string &str);
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/// splits input at first non-leading whitespace and returns both parts
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void getFirstWord(const std::string &in, std::string &first, std::string &rest);
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template <typename T>
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void fromString(const char *in, T &out) {
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FbTk_istringstream iss(in);
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iss >> out;
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}
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template <typename Container>
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static void stringTokensBetween(Container &container, const std::string &in,
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std::string &rest, char first, char last,
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const char *ok_chars = " \t\n", bool allow_nesting = true) {
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std::string token;
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int err = 0, pos = 0;
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while (true) {
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err = getStringBetween(token, in.c_str() + pos, first, last, ok_chars,
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allow_nesting);
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if (err <= 0)
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break;
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container.push_back(token);
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pos += err;
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}
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rest = in.c_str() + pos;
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}
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/// Breaks a string into tokens
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template <typename Container>
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static void
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stringtok (Container &container, std::string const &in,
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const char * const delimiters = " \t\n") {
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const std::string::size_type len = in.length();
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std::string::size_type i = 0;
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while ( i < len ) {
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// eat leading whitespace
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i = in.find_first_not_of(delimiters, i);
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if (i == std::string::npos)
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return; // nothing left but white space
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// find the end of the token
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std::string::size_type j = in.find_first_of(delimiters, i);
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// push token
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if (j == std::string::npos) {
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container.push_back(in.substr(i));
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return;
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} else
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container.push_back(in.substr(i, j-i));
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// set up for next loop
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i = j + 1;
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}
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}
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} // end namespace StringUtil
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} // end namespace FbTk
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#endif // FBTK_STRINGUTIL_HH
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