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A.29 library(pairs): Operations on key-value lists
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The SWI-Prolog library
library(pairs): Operations on key-value lists
pairs_keys_values/3
pairs_values/2
pairs_keys/2
group_pairs_by_key/2
transpose_pairs/2
map_list_to_pairs/3
Packages
Availability:
:- use_module(
library(pairs)
).
(can be autoloaded)
[det]
transpose_pairs
(
+Pairs, -Transposed
)
Swap Key-Value to Value-Key. The resulting list is sorted using
keysort/2
on the new key.
ClioPatria
(version
V3.1.1-40-g9d9e003
)
[det]transpose_pairs(+Pairs,
-Transposed)[det]transpose_pairs(+Pairs,
-Transposed)[det]transpose_pairs(+Pairs,
-Transposed)