iftex – Am I running under pdfTeX, X∃TeX or LuaTeX?
The package, which works both for Plain TeX and for LaTeX, defines the \ifPDFTeX, \ifX∃TeX, and \ifLuaTeX conditionals for testing which engine is being used for typesetting.The package also provides the \RequirePDFTeX, \RequireX∃TeX, and \RequireLuaTeX commands which throw an error if pdfTeX, X∃TeX or LuaTeX (respectively) is not the engine in use.
|License||The LaTeX Project Public License 1.3|
|Copyright||2010 Persian TeX Group|
Persian TeX Group
|Contained in||TeXlive as iftex|
|MikTeX as iftex|
examine the TeX programming environment|
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