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From: pem@zyx.SE (Per-Erik Martin)
Newsgroups: comp.lang.c
Subject: Re: Want a way to strip comments from a
Message-ID: <859@lynx.zyx.SE>
Date: 23 Mar 89 16:38:11 GMT
References: <7150@siemens.UUCP> <9900010@bradley> <4896@cbnews.ATT.COM> <978@philmds.UUCP> <3114@nunki.usc.edu> <983@philmds.UUCP> <852@lynx.zyx.SE> <987@philmds.UUCP>
Reply-To: pem@lynx.zyx.SE (Per-Erik Martin)
Organization: ZYX Sweden AB, Stockholm, Sweden
Lines: 26

In article <987@philmds.UUCP> leo@philmds.UUCP (Leo de Wit) writes:
>
>Appearances are deceptive, it won't handle trigraphs. For instance, try:
>??' (trigraph for ^) and your code thinks it is in_char.
>
>What's worse, on systems where char isn't signed and EOF == -1, it will
>fail to see EOF (suggestion: don't use a char to compare against EOF).
>
I simply didn't include trigraphs in the automaton and I'm well aware of
the problem with EOF. The point I tried to make was that it's possible
to solve a problem like that in, for example, C in a reasonable time,
instead of using sed-scripts or lex (which is of no use outside the
unix-world anyway).
If you really want a comment stripper you can easily add trigraphs, handle
EOF, etc.

>
>P.S. What's the benefit of having a separate program strip off comments anyway?

Good question. None, as far as I know...

-- 
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- Per-Erik Martin, ZYX Sweden AB, Bangardsgatan 13, S-753 20  Uppsala, Sweden -
- Email: pem@zyx.SE                                                           -
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