diff options
| -rw-r--r-- | txr.1 | 40 |
1 files changed, 36 insertions, 4 deletions
@@ -40805,9 +40805,10 @@ macro for deleting a place. .SS* Permutations and Combinations -.coNP Function @ perm +.coNP Functions @ perm and @ permi .synb .mets (perm < seq <> [ len ]) +.mets (permi < seq <> [ len ]) .syne .desc The @@ -40821,6 +40822,13 @@ The permutations do not use any element of .meta seq more than once. +The +.code permi +function has identical argument semantics, but returns an iterator +instead of a lazy list: an object meeting the same conventions +as the return value of +.codn iter-begin . + Argument .metn len , if present, must be a positive integer, and @@ -40851,9 +40859,10 @@ requires more items than are available. The permutations are lexicographically ordered. -.coNP Function @ rperm +.coNP Functions @ rperm and @ rpermi .synb .mets (rperm < seq << len ) +.mets (rpermi < seq << len ) .syne .desc The @@ -40868,6 +40877,13 @@ formed by items taken from can appear more than once in the permutations. +The +.code rpermi +function has identical argument semantics, but returns an iterator +instead of a lazy list: an object meeting the same conventions +as the return value of +.codn iter-begin . + The permutations which are returned are sequences of the same kind as .metn seq . @@ -40913,9 +40929,10 @@ That is to say, the permutations are lexicographically ordered. (1 1) (1 2) (2 0) (2 1) (2 2)) .brev -.coNP Function @ comb +.coNP Functions @ comb and @ combi .synb .mets (comb < seq << len ) +.mets (combi < seq << len ) .syne .desc The @@ -40933,6 +40950,13 @@ more than once. If contains no duplicates, then the combinations contain no duplicates. +The +.code combi +function has identical argument semantics, but returns an iterator +instead of a lazy list: an object meeting the same conventions +as the return value of +.codn iter-begin . + Argument .meta len must be a nonnegative integer, and @@ -40971,9 +40995,10 @@ is a hash table. (mappend* (op comb s) (range 0 (length s)))) .brev -.coNP Function @ rcomb +.coNP Functions @ rcomb and @ rcombi .synb .mets (rcomb < seq << len ) +.mets (rcombi < seq << len ) .syne .desc The @@ -40988,6 +41013,13 @@ an element of .meta seq more than once. +The +.code rcombi +function has identical argument semantics, but returns an iterator +instead of a lazy list: an object meeting the same conventions +as the return value of +.codn iter-begin . + Argument .meta len must be a nonnegative integer, and |