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