list commands

Usage:

/REQUIRE lisp.tf

These commands operate on lists of words, and are similar to those in lisp. They all give their results with /echo, and are intended to be used in $(...) command substitution to capture the result.

/car list

Echo first word. (Same as /first).

/cdr list

Echo all words after first. (Same as /rest).

/cadr list

Echo second word.

/cddr list

Echo all words after second.

/caddr list

Echo third word.

/cdddr list

Echo all words after third.

/length list

Echo number of words in list.

/reverse list

Reverse the order of the words in list.

/mapcar cmd list

Execute "cmd word" for each word in list.

/maplist cmd list

Execute "cmd list" repeatedly, removing the first word from list each time, until list is empty.

/remove word list

Echo list with all occurrences of word removed.

/unique list

Remove all duplicate words from list. Note: /unique is very slow on long lists.

See: /nth