Softanza
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Softanza
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Reference · stzString

Extend()

Extend / ExtendXT: append content / pad to length / pad to position. Port from archive line 3596 (the DSL variant) plus the simpler positional cases.

Basic examples (2)

Softanza
o1 = new stzString("ABC")
o1.ExtendXT( :String, :With = "DE" )
# 'DE' is appended
? o1.Content()
Output
ABCDE

run on 2026-10-02 04:23 inside the library at commit 0e72e2e2c; taken from 140_extendxt_string_with.ring(opens in a new tab)

Softanza
o1 = new stzString("ABC")
o1.ExtendXT( :String, :ToPosition = 5 )
# padded to position 5
? o1.Content()
Output
ABC

run on 2026-10-02 04:23 inside the library at commit 0e72e2e2c; taken from 141_extendxt_string_toposition.ring(opens in a new tab)

Scope (4)

Softanza
o1 = new stzString("ABC")
o1.ExtendXT( :ToPosition = 5, :ByCharsRepeated )
# it grows to 'ABCAB'
? o1.Content()
Output
ABCAB

run on 2026-10-02 04:23 inside the library at commit 0e72e2e2c; taken from 143_extendxt_bycharsrepeated.ring(opens in a new tab)

Softanza
o1 = new stzString("ABC")
o1.ExtendXT( :ToPosition = 5, :With = "*" )
# padded to position 5 with '*'
? o1.Content()
Output
ABC**

run on 2026-10-02 04:23 inside the library at commit 0e72e2e2c; taken from 144_extendxt_with.ring(opens in a new tab)

Softanza
o1 = new stzString("ABC")
o1.ExtendXT( :ToPosition = 5, :With = :CharsRepeated )
# it grows to 'ABCAB'
? o1.Content()
Output
ABCAB

run on 2026-10-02 04:23 inside the library at commit 0e72e2e2c; taken from 142_extendxt_charsrepeated.ring(opens in a new tab)

Softanza
o1 = new stzString("ABC")
o1.ExtendXT( :ToPosition = 5, :WithCharsIn = [ "D", "E" ])
# padded to position 5 with D,E
? o1.Content()
Output
ABCDE

run on 2026-10-02 04:23 inside the library at commit 0e72e2e2c; taken from 145_extendxt_withcharsin.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 · ExtendQ, ExtendXTQ
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
no
takes a case-sensitivity flag
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 · ExtendXT, ExtendXTQ
XTT
no
yet another extension: a further extended form, after XT
Z
no
includes the position in what it returns
ZZ
no
returns positions as sections, [start, end]
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