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

[Paul Eggert]

Hirofumi Saito <address@hidden> writes:

> 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

Very strange.  I don't get this result with Debian sarge x86; instead,
I get 3 in both cases.  And that is what I would expect to get, given
the source code.  Perhaps your locales weren't all built?  (Also, I
set LC_ALL rather than LANG; that's safer.)

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

Yes, his patch should work.

Here's a slightly more-efficient patch:

--- node.c-bak  2005-07-26 11:07:43.000000000 -0700
+++ node.c      2005-11-30 13:33:44.000000000 -0800
@@ -749,9 +749,10 @@ str2wstr(NODE *n, size_t **ptr)
                switch (count) {
                case (size_t) -2:
                case (size_t) -1:
-               case 0:
                        goto done;
 
+               case 0:
+                       count = 1;
                default:
                        *wsp++ = wc;
                        src_count -= count;