96 lines
3.0 KiB
C++
96 lines
3.0 KiB
C++
/*
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* Copyright (c) 2014 Fredy Wijaya
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* 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 all
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* 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 THE
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* 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 FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "PropertiesUtils.h"
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namespace cppproperties {
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namespace PropertiesUtils {
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namespace {
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const std::string TRIM_DELIMITERS = " \f\n\r\t\v";
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std::string ltrim(const std::string& str) {
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std::string::size_type s = str.find_first_not_of(TRIM_DELIMITERS);
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if (s == std::string::npos) {
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return "";
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}
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return str.substr(s);
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}
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}
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std::string RightTrim(const std::string& str) {
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std::string::size_type s = str.find_last_not_of(TRIM_DELIMITERS);
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if (s == std::string::npos) {
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return "";
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}
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return str.substr(0, s+1);
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}
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std::string LeftTrim(const std::string& str) {
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std::string rstr = ltrim(str);
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while (rstr != ltrim(rstr)) {
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rstr = ltrim(rstr);
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}
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return rstr;
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}
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std::string Trim(const std::string& str) {
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return RightTrim(LeftTrim(str));
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}
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bool IsProperty(const std::string& str) {
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std::string trimmedStr = LeftTrim(str);
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std::string::size_type s = trimmedStr.find_first_of("=");
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if (s == std::string::npos) {
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return false;
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}
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std::string key = Trim(trimmedStr.substr(0, s));
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// key can't be empty
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if (key == "") {
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return false;
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}
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return true;
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}
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std::pair<std::string, std::string> ParseProperty(const std::string& str) {
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std::string trimmedStr = LeftTrim(str);
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std::string::size_type s = trimmedStr.find_first_of("=");
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std::string key = Trim(trimmedStr.substr(0, s));
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std::string value = LeftTrim(trimmedStr.substr(s+1));
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return std::pair<std::string, std::string>(key, value);
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}
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bool IsComment(const std::string& str) {
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std::string trimmedStr = LeftTrim(str);
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return trimmedStr[0] == '#';
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}
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bool IsEmptyLine(const std::string& str) {
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std::string trimmedStr = LeftTrim(str);
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return trimmedStr == "";
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}
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} // namespace PropertiesUtils
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} // namespace cppproperties
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