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PTREE_PEEK_CONV                                          (patriciaLib)
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PTREE_PEEK_CONV : conv

SYNOPSIS
Conversion for evaluating applications of {patricia$PEEK}.

DESCRIBE
The conversion {PTREE_PEEK_CONV} evaluates terms of the form {t ' m} where {t} is a well-formed Patricia tree (constructed by {patricia$Empty}, {patricia$Leaf} and {patricia$Branch}) and {m} is a natural number literal.

FAILURE
The conversion will fail if the supplied term is not a suitable application of {patricia$PEEK}.

EXAMPLE

- patriciaLib.PTREE_PEEK_CONV ``Empty ' 3``;
> val it = |- <{}> ' 3 = NONE: thm

- patriciaLib.PTREE_PEEK_CONV ``Branch 0 0 (Leaf 3 2) (Leaf 2 1) ' 3``;
> val it = |- Branch 0 0 (Leaf 3 2) (Leaf 2 1) ' 3 = SOME 2: thm


SEEALSO
patriciaLib.PTREE_CONV.

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