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nsINIParser.h
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00001 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is Mozilla Communicator client code, released
00016  * March 31, 1998.
00017  *
00018  * The Initial Developer of the Original Code is
00019  * Netscape Communications Corporation.
00020  * Portions created by the Initial Developer are Copyright (C) 1998
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *   Samir Gehani <sgehani@netscape.com>
00025  *   Benjamin Smedberg <bsmedberg@covad.net>
00026  *
00027  * Alternatively, the contents of this file may be used under the terms of
00028  * either the GNU General Public License Version 2 or later (the "GPL"), or
00029  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00030  * in which case the provisions of the GPL or the LGPL are applicable instead
00031  * of those above. If you wish to allow use of your version of this file only
00032  * under the terms of either the GPL or the LGPL, and not to allow others to
00033  * use your version of this file under the terms of the MPL, indicate your
00034  * decision by deleting the provisions above and replace them with the notice
00035  * and other provisions required by the GPL or the LGPL. If you do not delete
00036  * the provisions above, a recipient may use your version of this file under
00037  * the terms of any one of the MPL, the GPL or the LGPL.
00038  *
00039  * ***** END LICENSE BLOCK ***** */
00040 
00041 // This file was shamelessly copied from mozilla/xpinstall/wizard/unix/src2
00042 
00043 #ifndef nsINIParser_h__
00044 #define nsINIParser_h__
00045 
00046 #include "nscore.h"
00047 #include "nsClassHashtable.h"
00048 #include "nsAutoPtr.h"
00049 
00050 #include <stdio.h>
00051 
00052 class nsILocalFile;
00053 
00054 class NS_COM_GLUE nsINIParser
00055 {
00056 public:
00057     nsINIParser() { }
00058     ~nsINIParser() { }
00059 
00066     nsresult Init(nsILocalFile* aFile);
00067 
00074     nsresult Init(const char *aPath);
00075 
00080     typedef PRBool
00081     (* PR_CALLBACK INISectionCallback)(const char *aSection,
00082                                        void *aClosure);
00083 
00087     nsresult GetSections(INISectionCallback aCB, void *aClosure);
00088 
00093     typedef PRBool
00094     (* PR_CALLBACK INIStringCallback)(const char *aString,
00095                                       const char *aValue,
00096                                       void *aClosure);
00097 
00102     nsresult GetStrings(const char *aSection,
00103                         INIStringCallback aCB, void *aClosure);
00104 
00115     nsresult GetString(const char *aSection, const char *aKey, 
00116                        nsACString &aResult);
00117 
00129     nsresult GetString(const char *aSection, const char* aKey,
00130                        char *aResult, PRUint32 aResultLen);
00131 
00132 private:
00133     struct INIValue
00134     {
00135         INIValue(const char *aKey, const char *aValue)
00136             : key(aKey), value(aValue) { }
00137 
00138         const char *key;
00139         const char *value;
00140         nsAutoPtr<INIValue> next;
00141     };
00142 
00143     struct GSClosureStruct
00144     {
00145         INISectionCallback  usercb;
00146         void               *userclosure;
00147     };
00148 
00149     nsClassHashtable<nsDepCharHashKey, INIValue> mSections;
00150     nsAutoArrayPtr<char> mFileContents;    
00151 
00152     nsresult InitFromFILE(FILE *fd);
00153 
00154     static PLDHashOperator GetSectionsCB(const char *aKey,
00155                                          INIValue *aData, void *aClosure);
00156 };
00157 
00158 #endif /* nsINIParser_h__ */