Janet 1.8.0-279b536 Documentation
(Other Versions: 1.6.0 1.5.1 1.5.0 1.4.0 1.3.1)

Tuple Module

Index

tuple/brackets tuple/setmap tuple/slice tuple/sourcemap tuple/type


tuple/brackets cfunction
(tuple/brackets & xs)

Creates a new bracketed tuple containing the elements xs.

tuple/setmap cfunction
(tuple/setmap tup line column)

Set the sourcemap metadata on a tuple. line and column indicate should be integers.

tuple/slice cfunction
(tuple/slice arrtup [,start=0 [,end=(length arrtup)]])

Take a sub sequence of an array or tuple from index start inclusive to index end exclusive. If start or end are not provided, they default to 0 and the length of arrtup respectively. 'start' and 'end' can also be negative to indicate indexing from the end of the input. Note that index -1 is synonymous with index '(length arrtup)' to allow a full negative slice range. Returns the new tuple.

tuple/sourcemap cfunction
(tuple/sourcemap tup)

Returns the sourcemap metadata attached to a tuple, which is another tuple (line, column).

tuple/type cfunction
(tuple/type tup)

Checks how the tuple was constructed. Will return the keyword :brackets if the tuple was parsed with brackets, and :parens otherwise. The two types of tuples will behave the same most of the time, but will print differently and be treated differently by the compiler.