On 14 Sep 2012, at 13:26, Wolfgang Schuster <wolfgang.schuster@gmail.com> wrote:

>
> Am 14.09.2012 um 00:08 schrieb Alessandro Perucchi <alessandro@perucchi.org>:
>
>> Hello,
>>
>> In my experimentation, I've found that in mkii and mkiv the behavior of \textrule and \setuptextrule are different...
>>
>> What I did was quite simple:
>>
>> \textrule{Testing head}
>> blah blah blah
>> \textrule
>>
>> in mkii the text in well centered between the lines.
>> But in mkiv the bottom line is too near the text, and I need to add something like \blank[halfline] to have a similar behavior as mkii.
>
> There is a vertical skip missing in the MkIV version of the macros.
>
> pack-mrl.mkiv
>
> \def\pack_textrule_following#1%
>  {\doifelsenothing{#1}
> -    {\nointerlineskip
> +    {\vskip\dimexpr\strutdp+.5ex\ifdim\prevdepth>\strutdp\else\ifdim\prevdepth>\zeropoint-\prevdepth\fi\fi\relax
> +     \nointerlineskip
>      \dontleavehmode\vbox
>        {\color[\directtextrulesparameter\c!rulecolor]
>           {\hrule\s!depth\directtextrulesparameter\c!rulethickness\s!height\zeropoint\s!width\availablehsize}}}
>     {\pack_textrule_with_text{#1}}%
>   \ifvmode
>     \prevdepth\zeropoint
>   \fi}

I've tried to patch pack-mrl.mkiv and I still get the error of spacing before the second \textrule.