mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-26 18:31:29 +00:00
122 lines
3.8 KiB
C++
122 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef nsManifestLineReader_h__
|
|
#define nsManifestLineReader_h__
|
|
|
|
#include "nspr.h"
|
|
#include "nsDebug.h"
|
|
|
|
class nsManifestLineReader
|
|
{
|
|
public:
|
|
nsManifestLineReader() : mBase(nsnull) {}
|
|
~nsManifestLineReader() {}
|
|
|
|
void Init(char* base, PRUint32 flen)
|
|
{
|
|
mBase = mCur = mNext = base;
|
|
mLength = 0;
|
|
mLimit = base + flen;
|
|
}
|
|
|
|
PRBool NextLine()
|
|
{
|
|
if(mNext >= mLimit)
|
|
return PR_FALSE;
|
|
|
|
mCur = mNext;
|
|
mLength = 0;
|
|
|
|
while(mNext < mLimit)
|
|
{
|
|
if(IsEOL(*mNext))
|
|
{
|
|
*mNext = '\0';
|
|
for(++mNext; mNext < mLimit; ++mNext)
|
|
if(!IsEOL(*mNext))
|
|
break;
|
|
return PR_TRUE;
|
|
}
|
|
++mNext;
|
|
++mLength;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
int ParseLine(char** chunks, int* lengths, int maxChunks)
|
|
{
|
|
NS_ASSERTION(mCur && maxChunks && chunks, "bad call to ParseLine");
|
|
int found = 0;
|
|
chunks[found++] = mCur;
|
|
|
|
if(found < maxChunks)
|
|
{
|
|
char *lastchunk = mCur;
|
|
int *lastlength = lengths;
|
|
for(char* cur = mCur; *cur; cur++)
|
|
{
|
|
if(*cur == ',')
|
|
{
|
|
*cur = 0;
|
|
// always fill in the previous chunk's length
|
|
*lastlength++ = cur - lastchunk;
|
|
chunks[found++] = lastchunk = cur+1;
|
|
if(found == maxChunks)
|
|
break;
|
|
}
|
|
}
|
|
// crazy pointer math - calculate the length of the final chunk
|
|
*lastlength = (mCur + mLength) - lastchunk;
|
|
}
|
|
return found;
|
|
}
|
|
|
|
char* LinePtr() {return mCur;}
|
|
PRUint32 LineLength() {return mLength;}
|
|
|
|
PRBool IsEOL(char c) {return c == '\n' || c == '\r';}
|
|
private:
|
|
char* mCur;
|
|
PRUint32 mLength;
|
|
char* mNext;
|
|
char* mBase;
|
|
char* mLimit;
|
|
};
|
|
|
|
#endif
|