orig
to cover only the text after split.index
, and
returns a new item that covers the text before split.index
that
used to be in orig
. You can think of split.index
as the length of
the returned item. split.index
may not be 0, and it may not be
greater than or equal to the length of orig
(that is, there must
be at least one byte assigned to each item, you can't create a
zero-length item). split.offset
is the length of the first item in
chars, and must be provided because the text used to generate the
item isn't available, so pangoItemSplit
can't count the char
length of the split items itself.pangoItemSplit(orig, split.index, split.offset)
split.index
split.offset
orig
and split.index
PangoItem
] new item representing text before split.index
,