Re: DOS to UNIX shell translator?

ok@cs.rmit.oz.au (Richard A. O'Keefe)
Thu, 18 Aug 1994 10:24:43 GMT

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Related articles
Re: DOS to UNIX shell translator? Stephen.Darlington@durham.ac.uk (Stephen Darlington) (1994-08-05)
Re: DOS to UNIX shell translator? dtrg@st-andrews.ac.uk (1994-08-07)
Re: DOS to UNIX shell translator? ok@cs.rmit.oz.au (1994-08-18)
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Newsgroups: comp.compilers
From: ok@cs.rmit.oz.au (Richard A. O'Keefe)
Keywords: translator
Organization: Comp Sci, RMIT, Melbourne, Australia
References: 94-08-060 94-08-065
Date: Thu, 18 Aug 1994 10:24:43 GMT

dtrg@st-andrews.ac.uk (David Thomas Richard Given) writes:
>I think you aren't going to be able to convert sh > .BAT, because sh
>scripts are a lot more powerful that .BAT files. For example, how are you
>going to convert multi-line ifs, switch statements, and back-quotes into
>.BAT files? However, .BAT > sh should be easy enough; the only slight
>difficulty may be due to GOTOs. Does sh support goto? (Never use it, so
>never wanted to find out :)


gotos are easy enough to simulate. Translate the whole file into a loop,
LABEL=1
while true ; do
case $LABEL in
1) ...
# goto L =>
LABEL=L
;;
...
esac
done


The real problem is simulating the commands whose return status controls
conditional gotos. For example, how should you translate a "TCC" command
to a "cc" command?
--

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