Metaprogramming: Difference between revisions
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} ifelse |
} ifelse |
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end}. |
end}. |
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</lang> |
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The standard if expression in postscript does not take a predicate. Instead it acts on the boolean value on top of the stack. This newly created word allows us to do |
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<lang postscript> |
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>| 2 {1 gt} {=} ift |
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2 |
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</lang> |
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Instead of |
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<lang postscript> |
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>| 2 dup 1 gt {=} ift |
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2 |
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</lang> |
</lang> |
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