Obtains an iterator pointing to byte_index
within the given line.
byte_index
must be the start of a UTF-8 character. Note bytes, not characters; UTF-8 may encode one character as multiple
bytes.
If line_number
is greater than or equal to the number of lines in the this, the end
iterator is returned. And if byte_index
is off the end of the line, the iterator at the end of the line is returned.
this |
a `GtkTextBuffer` |
iter |
iterator to initialize |
line_number |
line number counting from 0 |
byte_index |
byte index from start of line |
whether the exact position has been found |