Date: Mon, 10 Jan 2000 00:12:50 -0500 (EST) From: Thomas David Rivers <rivers@dignus.com> To: mi@kot.ne.mediaone.net, stable@FreeBSD.ORG Subject: Re: isprint(3) and LANG/LOCALE Message-ID: <200001100512.AAA34272@lakes.dignus.com> In-Reply-To: <200001100505.AAA86278@rtfm.newton>
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>
> Is the subject supposed to consider the LANG setting? I'd think so, but
> it does not :( Send-pr? I have a bunch of jpeg-images with comments in
> Russian. rdjpeg(1) reads them, but because isprint(3) says 0, prints
> every character's octal value :(. Thanks!
>
> -mi
>
> #include <stdio.h>
> #include <ctype.h>
>
> main(int argc, char *argv[]) {
> char *c;
> for(c = argv[argc-1]; *c; *c++)
> printf("for %c isprint() returns %d\n", *c, isprint(*c));
> }
>
As you point out, the isprint(3) man page seems to suggest it does not
check lang - isprint simply looks at the byte and decides if it's printable
in the ASCII char set.
The man page basically quotes the C ANSI standard and says isprint()
tests for any printing character. The ANSI standard doesn't appear to
go beyond that.
Perhaps the best thing to do would be to remove the test in rdjpeg???
- Dave Rivers -
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