main-vocab-hook
Factor documentation > Factor handbook > The implementation > Command line arguments
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Vocabulary
command-line

Variable description
Global variable holding a quotation which outputs a vocabulary name. UI backends set this so that the UI can automatically start if the prerequisites are met (for example, $DISPLAY being set on X11).

Variable value
Current value in global namespace:
[ "DISPLAY" os-env "ui.tools" "listener" ? ]


Definition
IN: command-line

SYMBOL: main-vocab-hook inline