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Reference · stzString

ReplaceSection()

Replace the chars at positions n1..n2 (inclusive) with pcNewSubStr. Ported from the legacy monolithic archive (~line 84916), kept minimal: pure numeric positions only. Symbolic forms (:First/:Last) are not yet supported.

Basic examples (2)

Softanza
o1 = new stzString("123--67--")
o1.ReplaceSection(1, 3, "~")
# collapsed
? o1.Content()
Output
~--67--

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 963_content.ring(opens in a new tab)

Softanza
o1 = new stzString("--345--89--")
o1.ReplaceSection(8, 9, "~")
# collapsed
? o1.Content()
Output
--345--~--

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 964_content.ring(opens in a new tab)

Scope (3)

Softanza
o1 = new stzString("ABC*EF")
o1.ReplaceSection( 4, 4, "D")
# the star became D
? o1.Content()
Output
ABCDEF

run on 2026-10-02 04:23 inside the library at commit 0e72e2e2c; taken from 253_content.ring(opens in a new tab)

Softanza
o1 = new stzString("123456789")
o1.ReplaceSection(4, 6, :With = "***")
# stars in place
? o1.Content()
Output
123***789

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 789_content.ring(opens in a new tab)

Softanza
o1 = new stzString("123456789")
o1.ReplaceSection(4, 6, :with = "♥♥♥")
# the middle becomes hearts
? o1.Content()
Output
123♥♥♥789

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 374_content.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 · ReplaceSectionQ
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
no
the extended form: more parameters than the base method
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