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Reference · stzString

ReplaceSectionsByMany()

ReplaceSectionsByMany(aSections, paReplacements): replace each [n1, n2] section in aSections with the corresponding replacement from paReplacements. Walks sections in reverse so earlier positions stay valid as later ones shift.

Basic examples (2)

Softanza
o1 = new stzString("123---78--")
o1.ReplaceSectionsByMany([ [1, 3], [7, 8] ], [ "*", "~" ])
# shrunk
? o1.Content()
Output
*---~--

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 969_content.ring(opens in a new tab)

Softanza
o1 = new stzString("--345--89--")
o1.ReplaceSectionsByMany([ [3, 5], [8, 9] ], [ "*", "~" ])
# shrunk
? o1.Content()
Output
--*--~--

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 968_content.ring(opens in a new tab)

Scope (5)

Softanza
o1 = new stzString("123---789---")
o1.ReplaceSectionsByMany([ [1, 3], [7, 9] ], [ "^^^", "vvv" ])
# both replaced
? o1.Content()
Output
^^^---vvv---

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 967_-------------.ring(opens in a new tab)

Softanza
o1 = new stzString("--345--89---")
o1.ReplaceSectionsByMany([ [3, 5], [8, 9] ], [ "^^^", "^^" ])
# shape preserved
? o1.Content()
Output
--^^^--^^---

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 965_content.ring(opens in a new tab)

Softanza
o1 = new stzString("...456...012...678..")
o1.ReplaceSectionsByMany([ [ 4, 6 ], [ 10, 12 ], [ 16, 18 ] ],
		[ "A", "BB", "CCC" ])
# each section renamed
? o1.Content()
Output
...A...BB...CCC..

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 926_content.ring(opens in a new tab)

Softanza
o1 = new stzString("---456----123--67---")
o1.ReplaceSectionsByMany(
		[ [4, 6], [11, 13], [16, 17] ],
		[ "^^^", "^^^", "^^" ]
	)
# all three replaced
? o1.Content()
Output
---^^^----^^^--^^---

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 961_content.ring(opens in a new tab)

Softanza
o1 = new stzString("^---^---^---^---")
o1.ReplaceSectionsByMany(
		[ [ 1, 1 ], [ 5, 5 ], [ 9, 9 ], [ 13, 14 ] ],
		[ "1", "5", "9", "13" ]
	)
# self-describing
? o1.Content()
Output
1---5---9---13--

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 970_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 · ReplaceSectionsByManyQ
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