Command/ bar

• \underbar{This is an example. $c = \sqrt{a^2 + b^2}$}
  
  \underbar{\input ward}
  

  gives:

• internal error: convert failed

• \setupbar[color=red]
  
  \underbar{A \underbar{B \underbar{Cc} b} a}
  \blank
  \underbar{A \underdot{B \underdash{Cc} b} a}
  \blank
  \underrandoms{A \overbar{B \underrandoms{Cc} b} a}
  \blank
  

  gives:

• 

In MkIV only bars of the same kind are nestable (stacking), in LMTX also mixed.

Draw a rule through every line of the text.

• \setuppapersize[A5]
  \overstrike{This is an example. $c = \sqrt{a^2 + b^2}$}
  
  \overstrike{\input ward}
  

• internal error: convert failed

If you are using microtypography with \setupalign[hz,hanging], then with some fonts the rule may end up off-target, above the characters instead of through them. (The problem was experienced with Linux Libertine and mkiv, and not with Latin Modern.) The workarounds are:

• Put the overstriked text in a \inframed[frame=off]{} . Example:

\setupalign[hanging,hz]
bla bla bla \inframed[frame=off]{\overstrike{striked}} bla bla

• Turn off microtypography for the paragraph containing the overstrike. Example:

\setupalign[nothanging,nohz]
bla bla bla \overstrike{striked} bla bla

\setupalign[hanging,hz]
bla bla bla bla bla

• \setuppapersize[A5]
  
  \definebar[BarA][color=red,rulethickness=1.4]
  
  \BarA{BarA}
  \blank
  Hello \startbar[BarA]\input{knuth}\stopbar world!
  \blank
  
  \definebar[BarB][color=green,rulethickness=2.8,order=background]
  
  \BarB{BarB}
  \blank
  Hello \startbar[BarB]\input{knuth}\stopbar world!
  \blank
  
  \definebar[BarC][color=blue,rulethickness=2.8,order=background,offset=1.5,continue=yes]
  
  \BarC{BarC}
  \blank
  Hello \startbar[BarC]\input{knuth}\stopbar world!
  \blank
  

  gives:

• 

• \definebar[ClozeBar][underbar][continue=yes, color=black, offset=-0.5]
  
  \starttexdefinition unexpanded Cloze #1
     \startbar[ClozeBar]
     \scratchdimen\widthofstring{#1}\relax
     \zwj\kern.2\scratchdimen #1 \kern.2\scratchdimen\zwj
     \stopbar
  \stoptexdefinition
  
  \startTEXpage
  This is a \Cloze{\color[red]{cloze}} whose underbar is 1.4 times as wide as the text above it. \Cloze{The leading} and trailing spaces are never broken.
  \stopTEXpage
  

  gives:

• 

• \startuseMPgraphic{rules:under:wavy}
      mo := RuleThickness*10;
      wav := 1.5*RuleThickness;
      path p;
      p := (wav, RuleDepth - wav){dir 45}
          for i := 1 upto RuleWidth/mo:
              ... (mo * i - 2*wav,RuleDepth + wav) ... {dir -45}(mo * i,RuleDepth - wav)
          endfor;
      draw p
          shifted (0,RuleFactor*RuleOffset)
          withpen pencircle scaled 1.5RuleThickness
          withcolor RuleColor ;
      setbounds currentpicture to unitsquare xysized(RuleWidth,RuleHeight) ;
  \stopuseMPgraphic
  
  \definebar[underwavy][undergraphic][mp=rules:under:wavy]
  
  This is a \underwavy{wavy underbar}.
  

  gives:

•