STINNER Victor <[email protected]> added the comment:
I looked at the implementation. It's more complex than what I expected.
tb_displayline(): _Py_DisplaySourceLine() returns the source line with the
indentation, but then it truncates the indentation.
extract_anchors_from_line() includes the indentation if I understand correctly.
There is also a special case for trailing spaces. Like this code path:
// If this is a multi-line expression, then we will highlight until
// the last non-whitespace character.
There is also a funny part about bytes vs Unicode vs UTF-8, that I don't get.
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<https://bugs.python.org/issue45063>
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