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/* bzflag
* Copyright (c) 1993 - 2008 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 <iostream>
#include <fstream>
#include "bzfsAPI.h"
#include "plugin_utils.h"
/*
* 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(string filename) {
configFilename = filename;
whitespace = " \t\r";
errors = 0;
parse();
}
string PluginConfig::item(string section, string key)
{
return sections[tolower(section)][tolower(key)];
}
void PluginConfig::parse(void)
{
string line;
string section;
string key;
string value;
ifstream iniFile;
size_t start, end;
size_t equalPos;
/*
* Parse key,value pairs for sections out of the INI type
* configuration file specified in 'filename'
*
*/
iniFile.open(configFilename.c_str(), 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 == string::npos) {
if (line.find_first_not_of(whitespace) != 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 == string::npos || end == string::npos)
value = "";
else
value = line.substr(start, end - start + 1);
/* Save the section, key and value in the map for later retrieval */
sections[tolower(section)][tolower(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: 8 ***
// c-basic-offset: 2 ***
// indent-tabs-mode: t ***
// End: ***
// ex: shiftwidth=2 tabstop=8
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