Kayne Ruse
106 lines
2.5 KiB
C++
106 lines
2.5 KiB
C++
/* Copyright: (c) Kayne Ruse 2013
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#include "config_utility.hpp"
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#include <cstdlib>
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#include <fstream>
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#include <stdexcept>
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using namespace std;
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void ConfigUtility::Load(string fname) {
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ifstream is(fname);
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if (!is.is_open()) {
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throw(runtime_error("Failed to open config file"));
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}
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string key, val;
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for (;;) { //forever
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//eat whitespace
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while(isspace(is.peek()))
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is.ignore();
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//end of file
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if (is.eof())
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break;
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//skip comment lines
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if (is.peek() == '#') {
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while(is.peek() != '\n' && !is.eof()) {
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is.ignore();
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}
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continue;
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}
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//read in the pair
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getline(is, key,'=');
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getline(is, val);
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//trim the strings at the start & end
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while(key.size() && isspace(*key.begin())) key.erase(0, 1);
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while(val.size() && isspace(*val.begin())) val.erase(0, 1);
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while(key.size() && isspace(*(key.end()-1))) key.erase(key.end() - 1);
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while(val.size() && isspace(*(val.end()-1))) val.erase(val.end() - 1);
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//allow empty/wiped values
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if (key.size() == 0) {
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continue;
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}
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//save the pair
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table[key] = val;
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}
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is.close();
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}
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std::string& ConfigUtility::String(std::string s) {
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return table[s];
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}
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int ConfigUtility::Integer(std::string s) {
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std::map<std::string, std::string>::iterator it = table.find(s);
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if (it == table.end()) {
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return 0;
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}
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return atoi(it->second.c_str());
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}
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double ConfigUtility::Double(std::string s) {
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std::map<std::string, std::string>::iterator it = table.find(s);
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if (it == table.end()) {
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return 0.0;
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}
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return atof(it->second.c_str());
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}
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bool ConfigUtility::Boolean(std::string s) {
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std::map<std::string, std::string>::iterator it = table.find(s);
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if (it == table.end()) {
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return false;
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}
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return it->second == "true";
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}
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