Epsilon User's Manual and Reference >
Variable Reference >
Default value: none
Some commands behave differently depending on what command preceded
them. To get this behavior, the command acts differently if
prev-cmd is set to a certain value and sets this-cmd
to that value itself. Epsilon copies the value in this-cmd to
prev-cmd and then clears this-cmd each time through
the main loop.
Control Flow (Primitives)
The Main Loop (Primitives)
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