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/* bzflag
* Copyright (c) 1993-2025 Tim Riker
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the license found in the file
* named COPYING that should have accompanied this file.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
// PluginUtils.h - Collection of useful utility functions for plugins
#include "bzfsAPI.h"
#include "plugin_config.h"
#include "plugin_utils.h"
#include <iostream>
#include <fstream>
/*
* INI style configuration file parser class
*
* Comments start with # or ;
* Ignores whitespace around sections, keys, and values
* Default section if none is specified is [global]
*/
PluginConfig::PluginConfig()
{
}
PluginConfig::PluginConfig(const std::string &filename) : errors(0), whitespace(" \t\r"), configFilename(filename)
{
parse();
}
void PluginConfig::read(const char* filename)
{
read(std::string(filename));
}
void PluginConfig::read(const std::string &filename)
{
sections.clear();
whitespace = " \t\r";
errors = 0;
configFilename = filename;
parse();
}
std::string PluginConfig::item(const char *section, const char *key)
{
return item(std::string(section),std::string(key));
}
std::string PluginConfig::item(const std::string §ion, const std::string &key)
{
std::string s = section,k = key;
makelower(s);
makelower(k);
return sections[s][k];
}
std::vector<std::string> PluginConfig::getSections()
{
std::vector<std::string> secNames;
for (auto itr = sections.begin(); itr != sections.end(); itr++)
secNames.push_back(itr->first);
return secNames;
}
std::vector<std::pair<std::string, std::string>> PluginConfig::getSectionItems(const char* section)
{
return getSectionItems(std::string(section));
}
std::vector<std::pair<std::string, std::string>> PluginConfig::getSectionItems(const std::string §ion)
{
std::vector<std::pair<std::string, std::string>> vec;
std::string s = section;
makelower(s);
if (sections.find(s) != sections.end())
{
for (auto itr = sections[s].begin(); itr != sections[s].end(); itr++)
vec.push_back(std::pair<std::string, std::string>(itr->first, itr->second));
}
return vec;
}
void PluginConfig::parse(void)
{
std::string line;
std::string section;
std::string key;
std::string value;
std::ifstream iniFile;
size_t start = 0, end = 0;
size_t equalPos = 0;
/*
* Parse key,value pairs for sections out of the INI type
* configuration file specified in 'filename'
*
*/
iniFile.open(configFilename.c_str(), std::ios::in);
if (!iniFile.is_open())
{
bz_debugMessagef(1, "PluginConfig: Can't open configuration file: %s", configFilename.c_str());
errors++;
return;
}
section = "global";
while (!iniFile.eof())
{
getline(iniFile, line);
start = line.find_first_not_of(whitespace);
/*
* Look for comments and skip
*/
if (line[start] == '#')
continue;
/*
* Look for a section tag
*/
if (line[start] == '[')
{
start = line.find_first_not_of(whitespace, start + 1);
/* Check if the last non whitespace character is a close bracket */
end = line.find_last_not_of(whitespace);
if (line[end] == ']')
{
end = line.find_last_not_of(whitespace, end - 1);
/* Got a section header - save it */
section = line.substr(start, end - start + 1);
bz_debugMessagef(4, "PluginConfig: Found section [%s]", section.c_str());
continue;
}
/*
* We either got a valid section or we have a
* Malformed line - '[' but not matching close ']' which we ignore.
*/
bz_debugMessagef(1, "PluginConfig: Malformed line ignored: %s", line.c_str());
continue;
}
/*
* No section tag, look for 'key = value' pairs
*
* Split the line into 'key = value' pairs
*/
equalPos = line.find("=", start);
/* If there is no '=' sign then ignore the line - treated as a comment */
if (equalPos == std::string::npos)
{
if (line.find_first_not_of(whitespace) != std::string::npos)
bz_debugMessagef(1, "PluginConfig: Malformed line ignored: %s", line.c_str());
continue;
}
/* Extract the key */
end = line.find_last_not_of(whitespace, equalPos - 1);
key = line.substr(start, end - start + 1);
/* Extract the value */
start = line.find_first_not_of(whitespace, equalPos + 1);
end = line.find_last_not_of(whitespace);
if (start == std::string::npos || end == std::string::npos)
value = "";
else
value = line.substr(start, end - start + 1);
makelower(key);
makelower(section);
/* Save the section, key and value in the std::map for later retrieval */
sections[section][key] = value;
bz_debugMessagef(4, "PluginConfig: Found key [%s].%s = %s", section.c_str(), key.c_str(), value.c_str());
}
iniFile.close();
}
// Local Variables: ***
// mode: C++ ***
// tab-width: 4 ***
// c-basic-offset: 4 ***
// indent-tabs-mode: nil ***
// End: ***
// ex: shiftwidth=4 tabstop=4
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