Re: gawk: length return incorrect value when MB_CUR_MAX > 1

[Hirofumi Saito]

KIMURA Koichi wrote.
> Hi,

> A certain user found the bug of gawk 3.1.5's length function.

> $LANG=ja_JP.utf8 gawk 'BEGIN {print length("abc\0def")}'

> This script prints '3', not '7'. I have tested Windows and GNU/Linux
> (Fedora Core3).

I tried this script with Fedora Core 5 test 1, then I got the same
results.

 $ LANG=ja_JP.utf8 gawk 'BEGIN {print length("abc\0def")}'
 3
 $ LANG=ja_JP.UTF-8 gawk 'BEGIN {print length("abc\0def")}'
 3
 $ LANG=ja_JP.eucJP gawk 'BEGIN {print length("abc\0def")}'
 3

Next, I tried this script with Debian GNU/Linux (sarge).
The version of gawk is 3.1.4.

 $ LANG=ja_JP.utf8 /usr/bin/gawk 'BEGIN{print length("abc\0def")}'
 7

And then, I tried to use gawk 3.1.5 which I build with sarge.

 $ LANG=ja_JP.utf8 gawk 'BEGIN {print length("abc\0def")}'
 7
 $ LANG=ja_JP.eucJP gawk 'BEGIN {print length("abc\0def")}'
 3

Does it means this result depends on the LANG?


By the way, I patched Kimura's patch, then:

 $ LANG=ja_JP.utf8 gawk 'BEGIN {print length("abc\0def")}'
 7
 $ LANG=ja_JP.eucJP gawk 'BEGIN {print length("abc\0def")}'
 7

It seems good.

Regards,

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Hirofumi Saito
Mail: address@hidden