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Reference · stzString

ConsecutiveSubStrings()

ENGINE-BACKED (StzEngineStringConsecutiveSubStrings): all window tilings 1..floor(len/2). Retires the O(len^2) Haro double-loop.

Basic examples (2)

Softanza
oA = new stzString("a")
s = new stzString( oA.Repeated(1000) )
# ConsecutiveSubStrings count is 375,250
? len(s.ConsecutiveSubStrings())
# FindDupSecutiveChars is 999 (positions 2..1000)
? len(s.FindDupSecutiveChars())
Output
375250
999

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 998_engine_string_largedata_narrated.ring(opens in a new tab)

Softanza
oA = new stzString("a")
s = new stzString( oA.Repeated(100) )
# NumberOfSubStrings is 5,050
? s.NumberOfSubStrings()
# SubStrings() enumerates 5,050
? len(s.SubStrings())
# SubStringsU() is 100
? len(s.SubStringsU())
# DuplicatesCS(1) is 50
? len(s.DuplicatesCS(1))
# ConsecutiveSubStrings is 3,775
? len(s.ConsecutiveSubStrings())
# FindDupSecutiveChars is 99
? len(s.FindDupSecutiveChars())
Output
5050
5050
100
50
3775
99

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 998_engine_string_largedata_narrated.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 · ConsecutiveSubStringsQ
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
yes
includes the position in what it returns · ConsecutiveSubStringsZ
ZZ
yes
returns positions as sections, [start, end] · ConsecutiveSubStringsZZ
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