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Postings from January 2012
Dear all,
as I am re-reading the code than actually implements typemap handling
(sigh), I keep stumbling across things that seem accidental behaviour.
The most significant so far is the following:
Comments (lines matching /^\s*#/) are ignored in the TYPEMAP section of
the file, but NOT in INPUT or OUTPUT sections.
Now, not ignoring comments on the same line as content (ie. not
stripping s/#.*$//) is a safe choice, but I keep wondering whether not
accepting comments in INPUT/OUTPUT is a bug/oversight or on purpose.
Consider
INPUT
T_FOO code
code
T_BAR othercode
othercode
Unless I misread the parser, a new input typemap is considered to start
with the first line that has \S in the first column. So
INPUT
T_FOO code
code
#comment
T_BAR othercode
othercode
will probably break on trying to treat #comment as a new XS type identifier.
INPUT
T_FOO code
code
#comment
T_BAR othercode
othercode
will include "#comment" verbatim in the T_FOO inputmap code.
Now, in theory, we could be looking at people trying to use the C
pre-processor directive here. Is that a valid thing to do in a typemap?
I'm on the fence. If not, I'd enable stripping of comments in
INPUT/OUTPUT as well.
Cheers,
Steffen
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