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2023872dff
* add INIReader::GetString Same as INIReader::Get, but returns default_value if the value is an empty string, which provides functionality similar to GetInteger and the others * clarify GetString description comment
95 lines
2.9 KiB
C++
95 lines
2.9 KiB
C++
// Read an INI file into easy-to-access name/value pairs.
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// inih and INIReader are released under the New BSD license (see LICENSE.txt).
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// Go to the project home page for more info:
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//
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// https://github.com/benhoyt/inih
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#include <algorithm>
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#include <cctype>
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#include <cstdlib>
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#include "../ini.h"
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#include "INIReader.h"
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using std::string;
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INIReader::INIReader(const string& filename)
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{
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_error = ini_parse(filename.c_str(), ValueHandler, this);
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}
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int INIReader::ParseError() const
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{
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return _error;
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}
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string INIReader::Get(const string& section, const string& name, const string& default_value) const
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{
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string key = MakeKey(section, name);
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// Use _values.find() here instead of _values.at() to support pre C++11 compilers
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return _values.count(key) ? _values.find(key)->second : default_value;
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}
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string INIReader::GetString(const string& section, const string& name, const string& default_value) const
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{
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const string str = Get(section, name, "");
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return str.empty() ? default_value : str;
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}
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long INIReader::GetInteger(const string& section, const string& name, long default_value) const
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{
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string valstr = Get(section, name, "");
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const char* value = valstr.c_str();
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char* end;
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// This parses "1234" (decimal) and also "0x4D2" (hex)
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long n = strtol(value, &end, 0);
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return end > value ? n : default_value;
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}
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double INIReader::GetReal(const string& section, const string& name, double default_value) const
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{
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string valstr = Get(section, name, "");
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const char* value = valstr.c_str();
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char* end;
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double n = strtod(value, &end);
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return end > value ? n : default_value;
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}
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bool INIReader::GetBoolean(const string& section, const string& name, bool default_value) const
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{
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string valstr = Get(section, name, "");
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// Convert to lower case to make string comparisons case-insensitive
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std::transform(valstr.begin(), valstr.end(), valstr.begin(), ::tolower);
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if (valstr == "true" || valstr == "yes" || valstr == "on" || valstr == "1")
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return true;
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else if (valstr == "false" || valstr == "no" || valstr == "off" || valstr == "0")
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return false;
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else
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return default_value;
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}
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bool INIReader::HasValue(const std::string& section, const std::string& name) const
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{
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string key = MakeKey(section, name);
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return _values.count(key);
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}
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string INIReader::MakeKey(const string& section, const string& name)
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{
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string key = section + "=" + name;
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// Convert to lower case to make section/name lookups case-insensitive
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std::transform(key.begin(), key.end(), key.begin(), ::tolower);
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return key;
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}
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int INIReader::ValueHandler(void* user, const char* section, const char* name,
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const char* value)
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{
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INIReader* reader = static_cast<INIReader*>(user);
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string key = MakeKey(section, name);
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if (reader->_values[key].size() > 0)
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reader->_values[key] += "\n";
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reader->_values[key] += value;
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return 1;
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}
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