[ Version ( since = "0.9.31" ) ]
public void add_codepoints (Codepoint[] text, uint item_offset, int item_length)
Appends characters from text array to buffer.
The item_offset is the position of the first character from text that will be appended, and item_length
is the number of character. When shaping part of a larger text (e.g. a run of text from a paragraph), instead of passing just the
substring corresponding to the run, it is preferable to pass the whole paragraph and specify the run start and length as item_offset
and item_length, respectively, to give HarfBuzz the full context to be able, for example, to do cross-run Arabic
shaping or properly handle combining marks at stat of run.
This function does not check the validity of text, it is up to the caller to ensure it contains a valid Unicode scalar
values. In contrast, add_utf32 can be used that takes similar input but
performs sanity-check on the input.
| text |
an array of Unicode code points to append. |
| item_offset |
the offset of the first code point to add to the |
| item_length |
the number of code points to add to the |
| buffer |
a Buffer to append characters to. |
| text_length |
the length of the |