103 lines
2.5 KiB
C++
103 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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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(uint32_t 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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uint32_t 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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uint32_t 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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