Obtains an iterator pointing to char_offset
within the given line.
Note characters, not bytes; UTF-8 may encode one character as multiple bytes.
Before the 3.20 version, it was not allowed to pass an invalid location.
Since the 3.20 version, if line_number
is greater than the number of lines in the this,
the end iterator is returned. And if char_offset
is off the end of the line, the iterator at the end of the line is returned.
this | |
iter |
iterator to initialize |
line_number |
line number counting from 0 |
char_offset |
char offset from start of line |