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135 lines
3.9 KiB
C++
135 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsPluginManifestLineReader_h_
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#define nsPluginManifestLineReader_h_
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#include "nspr.h"
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#include "nsDebug.h"
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#ifdef XP_WIN
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#define PLUGIN_REGISTRY_FIELD_DELIMITER '|'
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#else
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#define PLUGIN_REGISTRY_FIELD_DELIMITER ':'
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#endif
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#define PLUGIN_REGISTRY_END_OF_LINE_MARKER '$'
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class nsPluginManifestLineReader
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{
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public:
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nsPluginManifestLineReader() {mBase = mCur = mNext = mLimit = 0;}
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~nsPluginManifestLineReader() { if (mBase) delete[] mBase; mBase=0;}
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char* Init(PRUint32 flen)
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{
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mBase = mCur = mNext = new char[flen + 1];
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if (mBase) {
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mLimit = mBase + flen;
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*mLimit = 0;
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}
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mLength = 0;
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return mBase;
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}
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bool NextLine()
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{
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if (mNext >= mLimit)
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return false;
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mCur = mNext;
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mLength = 0;
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char *lastDelimiter = 0;
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while(mNext < mLimit) {
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if (IsEOL(*mNext)) {
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if (lastDelimiter) {
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if (lastDelimiter && *(mNext - 1) != PLUGIN_REGISTRY_END_OF_LINE_MARKER)
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return false;
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*lastDelimiter = '\0';
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} else {
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*mNext = '\0';
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}
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for (++mNext; mNext < mLimit; ++mNext) {
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if (!IsEOL(*mNext))
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break;
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}
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return true;
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}
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if (*mNext == PLUGIN_REGISTRY_FIELD_DELIMITER)
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lastDelimiter = mNext;
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++mNext;
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++mLength;
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}
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return false;
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}
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int ParseLine(char** chunks, int maxChunks)
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{
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NS_ASSERTION(mCur && maxChunks && chunks, "bad call to ParseLine");
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int found = 0;
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chunks[found++] = mCur;
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if (found < maxChunks) {
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for (char* cur = mCur; *cur; cur++) {
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if (*cur == PLUGIN_REGISTRY_FIELD_DELIMITER) {
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*cur = 0;
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chunks[found++] = cur + 1;
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if (found == maxChunks)
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break;
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}
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}
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}
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return found;
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}
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char* LinePtr() { return mCur; }
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PRUint32 LineLength() { return mLength; }
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bool IsEOL(char c) {return c == '\n' || c == '\r';}
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char* mBase;
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private:
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char* mCur;
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PRUint32 mLength;
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char* mNext;
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char* mLimit;
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};
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#endif
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