fixed off-by-1 error in compare, and added ReplaceSubstring(). r=syd
git-svn-id: svn://10.0.0.236/trunk@55066 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
@@ -586,7 +586,6 @@ PRInt32 nsStr::RFindCharInSet(const nsStr& aDest,const nsStr& aSet,PRBool aIgnor
|
||||
return kNotFound;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Compare source and dest strings, up to an (optional max) number of chars
|
||||
* @param aDest is the first str to compare
|
||||
@@ -609,13 +608,39 @@ PRInt32 nsStr::Compare(const nsStr& aDest,const nsStr& aSource,PRInt32 aCount,PR
|
||||
return 1;
|
||||
}
|
||||
|
||||
PRInt32 maxlen=(aSource.mLength<aDest.mLength) ? aDest.mLength : aSource.mLength;
|
||||
aCount = (aCount<0) ? maxlen : MinInt(aCount,maxlen);
|
||||
aCount = (aCount<0) ? minlen: MinInt(aCount,minlen);
|
||||
result=(*gCompare[aDest.mCharSize][aSource.mCharSize])(aDest.mStr,aSource.mStr,aCount,aIgnoreCase);
|
||||
|
||||
if (0==result) {
|
||||
if (aDest.mLength != aSource.mLength) {
|
||||
//we think they match, but we've only compared minlen characters.
|
||||
//if the string lengths are different, then they don't really match.
|
||||
result = (aDest.mLength<aSource.mLength) ? -1 : 1;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overwrites the contents of dest at offset with contents of aSource
|
||||
*
|
||||
* @param aDest is the first str to compare
|
||||
* @param aSource is the second str to compare
|
||||
* @param aDestOffset is the offset within aDest where source should be copied
|
||||
* @return error code
|
||||
*/
|
||||
void nsStr::Overwrite(nsStr& aDest,const nsStr& aSource,PRInt32 aDestOffset) {
|
||||
if(aDest.mLength && aSource.mLength) {
|
||||
if((aDest.mLength-aDestOffset)>=aSource.mLength) {
|
||||
//if you're here, then both dest and source have valid lengths
|
||||
//and there's enough room in dest (at offset) to contain source.
|
||||
(*gCopyChars[aSource.mCharSize][aDest.mCharSize])(aDest.mStr,aDestOffset,aSource.mStr,0,aSource.mLength);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------------------
|
||||
|
||||
PRBool nsStr::Alloc(nsStr& aDest,PRUint32 aCount) {
|
||||
|
||||
Reference in New Issue
Block a user