xpcom/ds/nsINIParserImpl.cpp

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is Mozilla XPCOM.
  15  *
  16  * The Initial Developer of the Original Code is
  17  * Benjamin Smedberg <benjamin@smedbergs.us>
  18  *
  19  * Portions created by the Initial Developer are Copyright (C) 2005
  20  * the Mozilla Foundation <http://www.mozilla.org/>. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #include "nsINIParserImpl.h"
  39
  40 #include "nsILocalFile.h"
  41
  42 #include "nsINIParser.h"
  43 #include "nsStringEnumerator.h"
  44 #include "nsVoidArray.h"
  45
  46 class nsINIParserImpl :
  47   public nsIINIParser
  48 {
  49 public:
  50   NS_DECL_ISUPPORTS
  51   NS_DECL_NSIINIPARSER
  52
  53   nsresult Init(nsILocalFile* aINIFile) {
  54     return mParser.Init(aINIFile);
  55   }
  56
  57 private:
  58   nsINIParser mParser;
  59 };
  60
  61 NS_IMPL_ISUPPORTS2(nsINIParserFactory,
  62                    nsIINIParserFactory,
  63                    nsIFactory)
  64
  65 NS_IMETHODIMP
  66 nsINIParserFactory::CreateINIParser(nsILocalFile* aINIFile,
  67                                     nsIINIParser* *aResult)
  68 {
  69   *aResult = nsnull;
  70
  71   nsCOMPtr<nsINIParserImpl> p(new nsINIParserImpl());
  72   if (!p)
  73     return NS_ERROR_OUT_OF_MEMORY;
  74
  75   nsresult rv = p->Init(aINIFile);
  76
  77   if (NS_SUCCEEDED(rv))
  78     NS_ADDREF(*aResult = p);
  79
  80   return rv;
  81 }
  82
  83 NS_IMETHODIMP
  84 nsINIParserFactory::CreateInstance(nsISupports* aOuter,
  85                                    REFNSIID aIID,
  86                                    void **aResult)
  87 {
  88   NS_ENSURE_NO_AGGREGATION(aOuter);
  89
  90   // We are our own singleton.
  91   return QueryInterface(aIID, aResult);
  92 }
  93
  94 NS_IMETHODIMP
  95 nsINIParserFactory::LockFactory(PRBool aLock)
  96 {
  97   return NS_OK;
  98 }
  99
 100 NS_IMPL_ISUPPORTS1(nsINIParserImpl,
 101                    nsIINIParser)
 102
 103 static PRBool
 104 SectionCB(const char* aSection, void *aClosure)
 105 {
 106   nsCStringArray *strings = static_cast<nsCStringArray*>(aClosure);
 107
 108   strings->AppendCString(nsDependentCString(aSection));
 109   return PR_TRUE;
 110 }
 111
 112 NS_IMETHODIMP
 113 nsINIParserImpl::GetSections(nsIUTF8StringEnumerator* *aResult)
 114 {
 115   nsCStringArray *strings = new nsCStringArray;
 116   if (!strings)
 117     return NS_ERROR_OUT_OF_MEMORY;
 118
 119   nsresult rv = mParser.GetSections(SectionCB, strings);
 120   if (NS_SUCCEEDED(rv))
 121     rv = NS_NewUTF8StringEnumerator(aResult, strings);
 122
 123   if (NS_FAILED(rv))
 124     delete strings;
 125
 126   return rv;
 127 }
 128
 129 static PRBool
 130 KeyCB(const char* aKey, const char *aValue, void *aClosure)
 131 {
 132   nsCStringArray *strings = static_cast<nsCStringArray*>(aClosure);
 133
 134   strings->AppendCString(nsDependentCString(aKey));
 135   return PR_TRUE;
 136 }
 137
 138 NS_IMETHODIMP
 139 nsINIParserImpl::GetKeys(const nsACString& aSection,
 140                          nsIUTF8StringEnumerator* *aResult)
 141 {
 142   nsCStringArray *strings = new nsCStringArray;
 143   if (!strings)
 144     return NS_ERROR_OUT_OF_MEMORY;
 145
 146   nsresult rv = mParser.GetStrings(PromiseFlatCString(aSection).get(),
 147                                    KeyCB, strings);
 148   if (NS_SUCCEEDED(rv))
 149     rv = NS_NewUTF8StringEnumerator(aResult, strings);
 150
 151   if (NS_FAILED(rv))
 152     delete strings;
 153
 154   return rv;
 155
 156 }
 157
 158 NS_IMETHODIMP
 159 nsINIParserImpl::GetString(const nsACString& aSection,
 160                            const nsACString& aKey,
 161                            nsACString& aResult)
 162 {
 163   return mParser.GetString(PromiseFlatCString(aSection).get(),
 164                            PromiseFlatCString(aKey).get(),
 165                            aResult);
 166 }