The previous fix where the Grammar comment style was changed to
remove the newlines was incorrect, because if you have
foo=1#comment
bar=2
after the Grammar comment ignoring, it would transform into
foo=1bar=2
which will clearly fail to parse, so the new line has to stay.
But we would still have the following case which would fail:
foo=a \
# comment
b
Apparently qmake things that's the equivalent of
foo=a b
but the grammar parses it as
foo=a \
\n (newline)
b
Thus the parsing fails because there's a newline and then some
weird 'b' token which the grammar does not expect.
The best fix I found is to preprocess the source, to remove
completely commented out lines.
So:
foo=a \
# comment
b
gets transformed into
foo=a \
b
Change-Id: I2487a0dbf94a6ad4d917d0a0ce05247341e9b7da
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
For some reason the python comment regex that we used does not ignore
the line break at the end of a comment line.
This caused issues when parsing multi line assignments with comments
in between.
Use our own regex for comments to circumvent the issue. It was found
while trying to port the qtimageformats repo.
Added a pytest as well.
Change-Id: Ie4bbdac2d1e1c133bc787a995224d0bbd8238204
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
