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Reference · stzList

Section()

Same as SectionCS: Section: extract items between two positions

Basic examples (2)

Softanza
o1 = new stzList(1:10)
# section example 1
? @@( o1.Section(3, 10) )
Output
[ 3, 4, 5, 6, 7, 8, 9, 10 ]

run on 2026-10-02 04:22 inside the library at commit 0e72e2e2c; taken from 182_section.ring(opens in a new tab)

Softanza
o1 = new stzList([ "S", "O", "F", "T", "A", "N", "Z", "A" ])
? o1.Section(1, 4)
? o1.Section(4, 1)
? o1.Section(:From = 1, :To = 4)
? o1.Section(:From = (:NthToLastItem = 3), :To = :LastItem)
? o1.Section(:From = "F", :To = "A")
? o1.Section( :From = "A", :To = :EndOfList )
? o1.Section(4, :@)
? o1.Section(:NthToLast = 3, :@)
? o1.Section(:@, :@)
Output
S
O
F
T

S
O
F
T

S
O
F
T

A
N
Z
A

F
T
A
N
Z
A

A
N
Z
A

T

A

S
O
F
T
A
N
Z
A

run on 2026-10-02 04:22 inside the library at commit 0e72e2e2c; taken from 374_section.ring(opens in a new tab)

Scope (1)

Softanza
o1 = new stzList([ "1", "2", "3", "4", "5", "6", "7" ])
# section example 1
? @@( o1.Section(3, 5) )
# section example 2
? @@( o1.Section(5, 3) )
# section example 3
? @@( o1.SectionXT(3, -3) )
# section example 4
? @@( o1.SectionXT(-3, 3) )
# section example 5
? @@( o1.Range(3, 3) )
# section example 6
? @@( o1.RangeXT(3, 3) )
# section example 7
? @@( o1.RangeXT(-5, 3) )
Output
[ "3", "4", "5" ]
[ "3", "4", "5" ]
[ "3", "4", "5" ]
[ "5", "4", "3" ]
[ "3", "4", "5" ]
[ "3", "4", "5" ]
[ "3", "4", "5" ]

run on 2026-10-02 04:22 inside the library at commit 0e72e2e2c; taken from 203_section.ring(opens in a new tab)

The extensions of this method

Each extension, and whether it exists for this method; an extension that exists combines with the others (FindSTCS).

Extension
Exists
What it adds · The names
Q
yes
does what the method does, then returns the object, so the call can be chained · SectionQ, SectionCSQ
QQ
no
chains on the next, more specific type of object (the Q ladder)
QQQ
no
chains on the most specific type of object (the Q ladder)
QRT
no
returns the result as an object of the requested type
CS
yes
takes a case-sensitivity flag · SectionCS, SectionCSQ, SectionCSZ, SectionCSZZ
ST
no
takes the position to start from (StartingAt)
IB
no
takes bounds that are included (IncludingBounds)
XT
yes
the extended form: more parameters than the base method · SectionXT
XTT
no
yet another extension: a further extended form, after XT
Z
yes
includes the position in what it returns · SectionZ, SectionCSZ
ZZ
yes
returns positions as sections, [start, end] · SectionZZ, SectionCSZZ
W
no
selects by a condition
WF
no
selects by a condition, with the expressive keywords (@NextItem, @PreviousItem...)
D
no
takes a direction, forward or backward (Directional)
F
no
takes a function (the condition or the update is given as a function); the forms document also uses F for the future form, which defers the action
Many
no
works on a collection of items instead of one (the plural form)
Except
no
takes exceptions, what to leave out (the exceptional form)
U
no
returns the result without duplication

Every example is a test file of the library, run inside the library for this page; only those whose output kept every promise their file wrote are shown.

See also