39 lines
766 B
Forth
39 lines
766 B
Forth
# Hiding Words
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It's often useful to be able to hide a word from the global
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dictionary. This can be done with the lexical scope words,
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but here I present a different approach.
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To hide a word, it is sufficient to change its name to
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something that will never be matched. Since strings are
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null terminated, just replacing the first character with
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a null suffices.
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So all that needs to be done is to create an array of headers
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we want to hide, then iterate over that to smudge out the
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names.
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# Code
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~~~
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'To-Hide d:create #65 allot
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:private @Dictionary @To-Hide &To-Hide + n:inc store &To-Hide v:inc ;
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:hide-private
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&To-Hide [ d:name v:off ] a:for-each &To-Hide v:off ;
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~~~
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# Example
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```
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:a ;
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:b ; private
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:f ; private
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:c ;
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:d ; private
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:e ;
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hide-private
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```
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