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Reference · stzList

BoundsOf()

Same as BoundsCS: Thin aliases over existing methods (restored from the monolith). Bounds of an item: for each occurrence of pItem, the up-to-N items immediately before and after it. pUpTo is a number (same count both sides) or a [before, after] pair. Accepts the named form BoundsOf(item, :UpToNItems = n). (Bounds() no-arg already exists, so the parametered form lives under BoundsCS/BoundsOf.)

Basic examples (1)

Softanza
o1 = new stzList([ 1, 2, "*", 4, 5, 6, "*", 8, 9 ])
? @@NL( o1.BoundsOf("*", :UpToNItems = 2) ) + NL
? @@NL( o1.BoundsOf("*", :UpToNItems = 3) )
Output
[
	[
		[ 1, 2 ],
		[ 4, 5 ]
	],
	[
		[ 5, 6 ],
		[ 8, 9 ]
	]
]

[
	[
		[  ],
		[ 4, 5, 6 ]
	],
	[
		[ 4, 5, 6 ],
		[  ]
	]
]

run on 2026-10-02 04:22 inside the library at commit 0e72e2e2c; taken from 217_boundsof.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
no
does what the method does, then returns the object, so the call can be chained
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