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Reference · stzString

Chars()

The chars of the string, as a list (codepoint-aware).

also written: ToListOfChars

Basic examples (2)

Softanza
oAB  = new stzString("ab")
big  = new stzString( oAB.Repeated(1000000) )
oA = new stzString("a")
oBigA = new stzString( oA.Repeated(200000) )
# Chars() returns 200,000 single chars
? len(oBigA.Chars())
Output
200000

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 999_engine_string_millions_narrated.ring(opens in a new tab)

Softanza
# chars of 12309 are numbers
? Q("12309").CharsQ().NumbrifiedQ().Are(:Numbers)
# chars of 248 are even positive numbers
? Q("248").CharsQ().NumberifiedQ().Are([ :Even, :Positive, :Numbers ])
# these are punctuation chars
? Q([ ",", ":", ";" ]).Are([ :Punctuation, :Chars ])
Output
1
1
1

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 451_what_you_think_is_what_you_write.ring(opens in a new tab)

Scope (1)

Softanza
# CharsW with a { Q(@char).isLetter() } block keeps just the letters
? @@( Q("~~H/U/S/S/E/I/N~~").CharsW('{ Q(@char).isLetter() }') )
# the plain-DSL form isLetter(@char) is equivalent
? @@( Q("~~H/U/S/S/E/I/N~~").CharsW('isLetter(@char)') )
# NumberOfCharsW counts the matches
? Q("~~H/U/S/S/E/I/N~~").NumberOfCharsW('{ Q(@char).isLetter() }')
Output
[ "H", "U", "S", "S", "E", "I", "N" ]
[ "H", "U", "S", "S", "E", "I", "N" ]
7

run on 2026-10-02 04:24 inside the library at commit 0e72e2e2c; taken from 713_charsw.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 · CharsQ, CharsWQ
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
yes
selects by a condition · CharsW, CharsWQ
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
yes
returns the result without duplication · CharsU

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