Usage: $slice(name,start[,end[,separator]])
Category: multi-value
Implemented: Picard 2.3


Returns a multi-value variable containing the elements from the start index up to but not including the end index from the multi-value variable name. A literal value representing a multi-value can be substituted for name, using the separator (or a semicolon followed by a space “; ” if not passed) to coerce the value into a proper multi-valued variable.

Indexes are zero based. Negative numbers will be counted back from the number of elements in the list. If the start or end indexes are left blank, they will default to 0 and the number of elements in the list respectively.

A typical use might be to create a multi-value variable with all artists in %artists% except the first, which can be used to create a “feat.” list. This would look something like $setmulti(supporting_artists,$slice(%artists%,1)).


The following statements will return the values indicated:

$set(foo,A; B; C; D; E)
$slice(%foo%,1)                        ==>  ""

$setmulti(foo,A; B; C; D; E)
$slice(%foo%,1)                        ==>  "B; C; D; E"

$slice(A; B; C; D; E,1,)               ==>  "B; C; D; E"
$slice(A; B; C; D; E,1,3)              ==>  "B; C"
$slice(A; B; C; D; E,,3)               ==>  "A; B; C"
$slice(A; B; C; D; E,1,3)              ==>  "B; C"
$slice(A; B; C; D; E,1,-1)             ==>  "B; C; D"
$slice(A; B; C; D; E,-4,4)             ==>  "B; C; D"
$slice(A:A; B:B; C:C; D:D; E:E,,1,:)   ==>  "A"
$slice(A:A; B:B; C:C; D:D; E:E,-2,,:)  ==>  "D; E:E"
$slice(A:A; B:B; C:C; D:D; E:E,2,4,:)  ==>  "B; C:C; D"