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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsPluginManifestLineReader_h_
#define nsPluginManifestLineReader_h_
#include "nspr.h"
#include "nsDebug.h"
#ifdef XP_WIN
# define PLUGIN_REGISTRY_FIELD_DELIMITER '|'
#else
# define PLUGIN_REGISTRY_FIELD_DELIMITER ':'
#endif
#define PLUGIN_REGISTRY_END_OF_LINE_MARKER '$'
class nsPluginManifestLineReader {
public:
nsPluginManifestLineReader() : mLength(0) {
mBase = mCur = mNext = mLimit = 0;
}
~nsPluginManifestLineReader() {
if (mBase) delete[] mBase;
mBase = 0;
}
char* Init(uint32_t flen) {
mBase = mCur = mNext = new char[flen + 1];
if (mBase) {
mLimit = mBase + flen;
*mLimit = 0;
}
mLength = 0;
return mBase;
}
bool NextLine() {
if (mNext >= mLimit) return false;
mCur = mNext;
mLength = 0;
char* lastDelimiter = 0;
while (mNext < mLimit) {
if (IsEOL(*mNext)) {
if (lastDelimiter) {
if (lastDelimiter &&
*(mNext - 1) != PLUGIN_REGISTRY_END_OF_LINE_MARKER)
return false;
*lastDelimiter = '\0';
} else {
*mNext = '\0';
}
for (++mNext; mNext < mLimit; ++mNext) {
if (!IsEOL(*mNext)) break;
}
return true;
}
if (*mNext == PLUGIN_REGISTRY_FIELD_DELIMITER) lastDelimiter = mNext;
++mNext;
++mLength;
}
return false;
}
int ParseLine(char** chunks, int maxChunks) {
NS_ASSERTION(mCur && maxChunks && chunks, "bad call to ParseLine");
int found = 0;
chunks[found++] = mCur;
if (found < maxChunks) {
for (char* cur = mCur; *cur; cur++) {
if (*cur == PLUGIN_REGISTRY_FIELD_DELIMITER) {
*cur = 0;
chunks[found++] = cur + 1;
if (found == maxChunks) break;
}
}
}
return found;
}
char* LinePtr() { return mCur; }
uint32_t LineLength() { return mLength; }
bool IsEOL(char c) { return c == '\n' || c == '\r'; }
char* mBase;
private:
char* mCur;
uint32_t mLength;
char* mNext;
char* mLimit;
};
#endif
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