static void
__ReplaceCSubstring (nsACString &string, const char* replace, const char* with)
{
PRInt32 i = string.Find (replace);
while ( i >= 0 ) {
string.Replace (i, strlen (replace), with);
i = string.Find (replace);
}
}
/**
* Determines whether or not a string exists as the root element in an XML data
* string buffer.
* @param dataString
* The data being sniffed
* @param substring
* The substring being tested for existence and root-ness.
* @returns true if the substring exists and is the documentElement, false
* otherwise.
*/
static bool
ContainsTopLevelSubstring(nsACString& dataString, const char *substring)
{
int32_t offset = dataString.Find(substring);
if (offset == -1)
return false;
const char *begin = dataString.BeginReading();
// Only do the validation when we find the substring.
return IsDocumentElement(begin, begin + offset);
}