Re: [bash-testers] Re: readline-5.2-1 prompt issue on cygwin

[Eric Blake]

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According to Eric Blake on 11/9/2006 10:10 PM:
> 
> Indeed, this alternative patch also seems to fix the test case for me:
> 
> --- bash-3.2-orig/lib/readline/display.c   2006-09-14 12:20:12.000000000
> -0600
> +++ bash-3.2/lib/readline/display.c     2006-11-09 22:08:26.249000000 -0700
> @@ -2380,6 +2380,8 @@ _rl_col_width (str, start, end)
> 
>    if (end <= start)
>      return 0;
> +  if (MB_CUR_MAX == 1)
> +    return end - start;
> 
>    memset (&ps, 0, sizeof (mbstate_t));
> 
> 

Using just the above patch to _rl_col_width, I have verified that ALL of
the prompt display bugs reported to cygwin over the past year and a half
are fixed; I haven't been able to come up with any broken scenarios.  I
guess there aren't that many platforms that provide mbrtowc and compile
readline with multibyte support, yet run a locale with MB_CUR_MAX == 1 by
default.

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

Eric Blake             ebb9@byu.net
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