Fortran Parser Question
Clive Page
cgp at nospam.le.ac.uk
Tue Apr 17 05:37:09 EDT 2001
In article <9b7o8q$gn0$1 at news.wrc.xerox.com>,
Mark Jackson <mjackson at wc.eso.mc.xerox.com> wrote:
>
>Comparatively minor example: as whitespace is not significant in Fortran
>a statement that begins "DO 50 I =" could be either the beginning of
>a do-loop that extends through statement 50, or the beginning of an
>assignment to the variable do50i.
In all recent Fortran Standards (Fortran90, Fortran95) whitespace _is_
significant if the source code adopts the free-format convention, which
just about everybody uses. But a good parser probably ought to cope with
both, so what you say is partly true.
I agree that it's not a trivial undertaking.
--
Clive Page cgp at le.ac.uk
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