pangoItemize: pangoItemize
Description
Breaks a piece of text into segments with consistent
directional level and shaping engine. Each byte of text will
be contained in exactly one of the items in the returned list;
the generated list of items will be in logical order (the start
offsets of the items are ascending).Usage
pangoItemize(context, text, start.index, length, attrs, cached.iter = NULL)
Arguments
context
[PangoContext] a structure holding information that affects
the itemization process. text
[char] the text to itemize.
start.index
[integer] first byte in text to process
length
[integer] the number of bytes (not characters) to process
after start.index.
This must be >= 0.
Details
cached.iter should be an iterator over attrs currently positioned at a
range before or containing start.index; cached.iter will be advanced to
the range covering the position just after start.index + length.
(i.e. if itemizing in a loop, just keep passing in the same cached.iter).