This function opens up a hole in list, fills it
in with attributes from the left, and then merges
other on top of the hole.
This operation is equivalent to stretching every attribute
that applies at position pos in list by an amount len,
and then calling pango.attr_list.AttrList.change with a copy
of each attribute in other in sequence (offset in position
by pos, and limited in length to len).
This operation proves useful for, for instance, inserting
a pre-edit string in the middle of an edit buffer.
For backwards compatibility, the function behaves differently
when len is 0. In this case, the attributes from other are
not imited to len, and are just overlayed on top of list.
This mode is useful for merging two lists of attributes together.
the length of the spliced segment. (Note that this
must be specified since the attributes in other may only
be present at some subsection of this range)
This function opens up a hole in list, fills it in with attributes from the left, and then merges other on top of the hole.
This operation is equivalent to stretching every attribute that applies at position pos in list by an amount len, and then calling pango.attr_list.AttrList.change with a copy of each attribute in other in sequence (offset in position by pos, and limited in length to len).
This operation proves useful for, for instance, inserting a pre-edit string in the middle of an edit buffer.
For backwards compatibility, the function behaves differently when len is 0. In this case, the attributes from other are not imited to len, and are just overlayed on top of list.
This mode is useful for merging two lists of attributes together.