Command/doif...

\doif...

• \doifnextcharelse
• \doifundefined, \doifdefined, etc.
• \doif, \doifnot, \doifelse
• \doifempty, \doifnotempty, \doifemptyelse
• \doifinset, \doifnotinset, \doifnotinsetelse
• \doifcommon, \doifnotcommon, \doifcommonelse
• \doifsamestringselse,\doifsamestring,\doifnotsamestring
• \doifinstringelse,\doifincsnameelse
• \doifnumberelse
• \doifassignmentelse
• \doiftext, \doiftextelse — empty string
• \doifrightpageelse (precede by \signalrightpage)
• \doifdocumentargument
• \doifelseindented (LMTX only)

Examples

Example 1: Date Macro

\startTEXpage[offset=5mm]
  %--- Commands Needed
  %\setvariable{NAME}{KEY}{VALUE} => \getvariable{NAME}{KEY}
  %\defineexpandable[n]
  %\doifnumberelse{TEXT}{TRUE_CASE}{FALSE_CASE}

  \defineexpandable[1]\notToday{%
    \start\dorecurse{#1}{\increment\normalday}\currentdate\stop%
  }%
  
  \defineexpandable\Date{%
    \doifnumberelse{\getvariable{Document}{Date}}{\notToday{\getvariable{Document}{Date}}}{\currentdate}%
  }%

  \setvariable{Document}{Date}{today}

  Today is \Date.
  
  \setvariable{Document}{Date}{7}
  
  In a week will be \Date.
\stopTEXpage

Example 2: Using Lua

We can also write tests using Lua. (Example by WS, 3/2011.)

\startTEXpage
  \ctxlua{test = true}
 
   Test is \ctxlua{commands.doifelse(test)}{True}{False}.
 
  \ctxlua{test = false}

  Test is \ctxlua{commands.doifelse(test)}{True}{False}.
\stopTEXpage

See also

Branches and Decisions

Help from ConTeXt-Mailinglist/Forum

All issues with:

• doif... on the mailing list (all results)
• doif... on the mailing list (subject only)
• doif... on stack exchange
• doif... in ConTeXt's source