23 lines
1 KiB
TeX
23 lines
1 KiB
TeX
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% switches.
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\newif\ifphoto % show photo.
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\newif\ifextra % show extra content.
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\newif\ifen % english language.
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\newif\ifru % russian language.
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\newcommand{\en}[1]{\ifen#1\fi} % print if english language.
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\newcommand{\ru}[1]{\ifru#1\fi} % print if russian language.
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% read env variables.
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\def\envtrue{true} % true.
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\def\envfalse{false} % false.
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\def\enven{en} % english literal.
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\def\envru{ru} % russian literal.
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\def\envempty{} % empty env value.
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\getenv[\envphoto]{DOCUMENT_PHOTO} % read photo shell variable.
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\getenv[\envextra]{DOCUMENT_EXTRA} % read extra shell variable.
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\getenv[\envlang]{DOCUMENT_LANG} % read language shell variable.
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\ifdefequal{\envphoto}{\envtrue}{\phototrue}{\photofalse} % show photo.
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\ifdefequal{\envextra}{\envtrue}{\extratrue}{\extrafalse} % show extra content.
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\ifdefequal{\envlang}{\enven}{\entrue}{} % use english.
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\ifdefequal{\envlang}{\envru}{\rutrue}{} % use russian.
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\ifdefequal{\envlang}{\envempty}{\entrue}{} % use english by default.
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