naming: methods to switch the system's recognizer

[ruv]

Idea

The terms and words relations isomorphism.

a number — the number that is currently used as number-conversion base (radix) — set-base ( BASE ! in a traditional form)
a number — the number of significant digits currently used — set-precision
a list of word lists — the search order — set-order
a word list — the compilation word list (the wordlist that is used to append new words to) — set-current

a recognizer — the recognizer currently used by the Forth text interpreter — set-X

It is better if X would be a proper noun that is distinct from "recognizer".

X is the recognizer that currently used by the system (the Forth text interpreter) to recognize lexemes.

Words

Return the xt of X

name ( -- xt )

Some variants for name

• recognizer
• current-recognizer
• forth-recognizer
• system-recognizer
• default-recognizer
• discriminator
• understander
• perceptor

Set X to the recognizer identified by xt

name ( xt -- )

Some variants for name

• set-X where X is a name from above.
  E.g.:
• set-perceptor

Set X to be the combination of X and the recognizer identified by xt

name ( xt -- )

Some variants for name

• enqueue-X
• postpend-X
• append-X
• set-X-after
  E.g.:
• set-perceptor-after

Set X to be the combination of the recognizer identified by xt and X

name ( xt -- )

Some variants for name

• preempt-X
• prepend-X
• set-X-before
  E.g.:
• set-perceptor-before

Undo the last changing of X

If it cannot be unchanged: if the Exception word set is provided, throw an exception (the code should be specified), otherwise an ambiguous condition exists.

name ( -- )

Some variants for name

• undo-X
• unset-X
• revert-X
  E.g.:
• undo-perceptor
• unset-perceptor
• revert-perceptor