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portability of isblank?


From: Eric Blake
Subject: portability of isblank?
Date: Sat, 21 Oct 2006 17:14:31 -0600
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I noticed that POSIX requires m4 to skip only leading <blank> and
<newline>, which is a subset of <space> in the LC_CTYPE category (at
least, in the POSIX locale).  I also noticed that regex_internal.h
provides a fallback in case isblank is not provided.  Is isblank portable?
 And if not, should we have a public gnulib header that provides it,
rather than regex_internal.h?

- --
Life is short - so eat dessert first!

Eric Blake             address@hidden
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