Ankündigungen für boolexpr

boolexpr – A boolean expression evaluator and a switch command

The \boolexpr macro evaluates boolean expressions in a purely expandable way.

\boolexpr{ A \OR B \AND C } expands to 0 if the logical expression is TRUE.

A, B, C may be:

• numeric expressions such as: x=y, x<>y, x>y or x<y;
• boolean switches: \iftrue 0\else 1\fi;
• conditionals: \ifcsname whatsit\endcsname 0\else 1\fi;
• another \boolexpr: \boolexpr{ D \OR E \AND F }:

\boolexpr may be used with \ifcase:

      \ifcase\boolexpr{ A \OR B \AND C }
          What to do if true
      \else
          What to do if false
      \fi
    

The \switch command (which is also expandable) has the form:

    \switch
    \case{<boolean expression>} ...
    \case{<boolean expression>} ...
    ...
    \otherwise ...
    \endswitch
    

Paket	boolexpr
Version	3.14
Copyright	2009 Florent Chervet
Betreuer	Florent Chervet

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