Logo

Programming-Idioms

# 169 String length
Assign to the integer n the number of characters of the string s.
Make sure that multibyte characters are properly handled.
n can be different from the number of bytes of s.
New implementation

Be concise.

Be useful.

All contributions dictatorially edited by webmasters to match personal tastes.

Please do not paste any copyright violating material.

Please try to avoid dependencies to third-party libraries and frameworks.

Other implementations 
n : Integer := s'Length;
(defn n[s] (.codePointCount s 0 (count s)))
(def n (.codePointCount s 0 (count s)))
IDENTIFICATION DIVISION.
PROGRAM-ID. length.
PROCEDURE DIVISION.
   MOVE FUNCTION LENGTH(s) TO n
STOP RUN.
auto utf8len(std::string_view const& s) -> size_t
{
	std::setlocale(LC_ALL, "en_US.utf8");

	auto n = size_t{};
	auto size = size_t{};
	auto mb = std::mbstate_t{};

	while(size < s.length())
	{
		size += mbrlen(s.data() + size, s.length() - size, &mb);
		n += 1;
	}

	return n;
}
int n = s.Length;
size_t n = s.length;
std.range;
size_t n = s.walkLength;
import std.uni, std.range;
size_t n = s.byGrapheme.walkLength;
int n = s.length;
n = String.length s
N = string:length(S)
n = len(s)
import "unicode/utf8"
n := utf8.RuneCountInString(s)
n = length s
const n = s.length;
const n = [...s].length;
int n = s.length();
val n = s.length
(setf n (length s))
(length s)
local n = utf8.len(s)
@import Foundation;
NSUInteger n=s.length;
$n = mb_strlen($s, 'UTF-8');
uses LazUtf8;
n := Utf8Length(s);
uses sysutils;
n := s.length;
uses LazUtf8;
n := length(s);
my $n = length( $s );
n = len(s)
n = s.size
n = s.length
let n = s.chars().count();
val n = s.length()
n := s size.
Dim n As Integer = s.Length

Preview