27 lines
684 B
Forth
27 lines
684 B
Forth
This is a four column version of `d:words`. It's pretty straightforward.
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The code first scans through the dictionary to find the longest name. Shorter
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names will be padded to make sure all columns line up. It then displays each
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name, updating a column counter and adding newlines when needed.
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~~~
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{{
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#3 'Columns var-n
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'PadTo var
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:determine-padding
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#0 [ d:name s:length n:max ] d:for-each !PadTo ;
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:print-name
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d:name [ s:put ] [ s:length @PadTo swap - &sp times ] bi sp sp ;
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:wrap? @Columns n:zero? dup [ #4 !Columns ] if &Columns v:dec ;
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---reveal---
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:d:words-4
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determine-padding [ print-name wrap? &nl if ] d:for-each ;
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}}
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~~~
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Test it.
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```
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d:words-4
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```
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