void
nsTSubstring_CharT::ReplaceASCII( index_type cutStart, size_type cutLength, const char* data, size_type length )
{
if (length == size_type(-1))
length = strlen(data);
// A Unicode string can't depend on an ASCII string buffer,
// so this dependence check only applies to CStrings.
#ifdef CharT_is_char
if (IsDependentOn(data, data + length))
{
nsTAutoString_CharT temp(data, length);
Replace(cutStart, cutLength, temp);
return;
}
#endif
cutStart = XPCOM_MIN(cutStart, Length());
if (ReplacePrep(cutStart, cutLength, length) && length > 0)
char_traits::copyASCII(mData + cutStart, data, length);
}
bool
nsTSubstring_CharT::Assign( const char_type* data, size_type length, const fallible_t& )
{
if (!data)
{
Truncate();
return true;
}
if (length == size_type(-1))
length = char_traits::length(data);
if (IsDependentOn(data, data + length))
{
return Assign(string_type(data, length), fallible_t());
}
if (!ReplacePrep(0, mLength, length))
return false;
char_traits::copy(mData, data, length);
return true;
}
void
nsTSubstring_CharT::Assign( const char_type* data, size_type length )
{
// unfortunately, some callers pass null :-(
if (!data)
{
Truncate();
return;
}
if (length == size_type(-1))
length = char_traits::length(data);
if (IsDependentOn(data, data + length))
{
// take advantage of sharing here...
Assign(string_type(data, length));
return;
}
if (ReplacePrep(0, mLength, length))
char_traits::copy(mData, data, length);
}
// This version of Assign is optimized for single-character assignment.
void
nsTSubstring_CharT::Assign( char_type c )
{
if (ReplacePrep(0, mLength, 1))
*mData = c;
}
