configparser.cpp



    1 ////////////////////////////////////////////////////////////////////////
    2 // FILE:        configparser.cpp
    3 // AUTHOR:      Johannes Winkelmann, jw@tks6.net
    4 // COPYRIGHT:   (c) 2002-2005 by Johannes Winkelmann
    5 // ---------------------------------------------------------------------
    6 //  This program is free software; you can redistribute it and/or modify
    7 //  it under the terms of the GNU General Public License as published by
    8 //  the Free Software Foundation; either version 2 of the License, or
    9 //  (at your option) any later version.
   10 ////////////////////////////////////////////////////////////////////////
   11 
   12 #include <iostream>
   13 #include "configparser.h"
   14 
   15 using namespace std;
   16 
   17 int ConfigParser::parseConfig(const std::string& fileName,
   18                               Config& config)
   19 {
   20     FILE* fp = fopen(fileName.c_str(), "r");
   21     if (!fp) {
   22         return -1;
   23     }
   24 
   25     char line[512];
   26     string s;
   27     while (fgets(line, 512, fp)) {
   28         if (line[strlen(line)-1] == '\n') {
   29             line[strlen(line)-1] = '\0';
   30         }
   31         s = line;
   32 
   33         // strip comments
   34         string::size_type pos = s.find("#");
   35         if (pos != string::npos) {
   36             s = s.substr(0, pos);
   37         }
   38 
   39         // whitespace separates
   40         pos = s.find(' ');
   41         if (pos == string::npos) {
   42             pos = s.find('\t');
   43         }
   44         if (pos != string::npos) {
   45             string key = s.substr(0, pos);
   46             string val = stripWhiteSpace(s.substr(pos));
   47         
   48             if (key == "proxy_host") {
   49                 config.proxyHost = val;
   50             } else if (key == "proxy_port") {
   51                 config.proxyPort = val;
   52             } else if (key ==  "proxy_user") {
   53                 config.proxyUser = val;
   54             } else if (key ==  "proxy_pass") {
   55                 config.proxyPassword = val;
   56             } else if (key == "operation_timeout") {
   57                 config.operationTimeout = val;
   58             }
   59         }
   60     }
   61 
   62     fclose(fp);
   63     return 0;
   64 }
   65 
   66 string ConfigParser::stripWhiteSpace(const string& input)
   67 {
   68     string output = input;
   69     while (isspace(output[0])) {
   70         output = output.substr(1);
   71     }
   72     while (isspace(output[output.length()-1])) {
   73         output = output.substr(0, output.length()-1);
   74     }
   75 
   76     return output;
   77 }