Re: [NTG-context] MKII & MKIV difference between \textrule

16 Sep 2012


      On 14-9-2012 13:26, Wolfgang Schuster wrote:
...
Am 14.09.2012 um 00:08 schrieb Alessandro Perucchi :
...
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}
actually that's the commented code ...

\pack_textrule_correct_depth

... i'm still not that convinced if that correction always looks right 
(i've reenabled it but it might become an option)
...
...
And apparently the command \starttextrule ... \stoptextrule doesn't work (this was explain in the cont-entp.pdf page 204) in either mkii & mliv.
This does work for me:
\starttext
blah blah blah
\starttextrule{Testing head}
blah blah blah
\stoptextrule
blah blah blah
\stoptext
Wolfgang
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