String Character Length: Difference between revisions

For byte length, see [[String Byte Length]].

 

myStrVar.length()

 

'''Compiler:''' GCC 4.1.2

 

Length : constant Natural := Str'Length;

 

count of "Hello World"

count "Hello World"

 

From within any code block:

w=length("Hello, world!") # static string example

{print"The length of this line is "length($0)}

 

'''Standard:''' [[ANSI C]] (AKA [[C89]]):

 

}

 

// Return the length in unicode characters

unsigned length = [@"Hello Word!" length];

}

 

'''Platform:''' [[.NET]]

'''Language Version:''' 1.0+

Start = strlen "Hello, world!"

 

#len("Hello World")#

 

(length "Hello World")

 

LEN("Hello, World!")

 

"Hello World".size()

 

The 1994 ANS standard does not have any notion of a particular character encoding, although it distinguishes between character and machine-word addresses. (There is some ongoing work on standardizing an "XCHAR" wordset for dealing with strings in particular encodings such as UTF-8.)

 

repeat drop ;

 

'''Interpreter:''' [[GHC | GHCi]] 6.6, [[Hugs]]

 

strlen = length "Hello, world!"

 

'''Compiler:''' any IDL compiler should do

 

int length2 = str.codePointCount(0, str.length()); //1

 

JavaScript encodes strings in UTF-16, which represents each character with one or two 16-bit values. The most commonly used characters are represented by one 16-bit value, while rarer ones like some mathematical symbols are represented by two.

 

var len2 = str2.length; //2

 

//Store length of hello world in length and print it

. length = "Hello World".length();

" Hello world" @ , # 11

 

 

'''Interpreter:''' [[Lua]] 5.0 or later.

length=#string

 

"Hello world".count

 

'''Interpreter:''' [[mIRC]]

 

alias stringlength { echo -a Your Name is: $len($$?="Whats your name") letters long! }

 

'''Interpreter'''/'''Compiler:''' [[Ocaml]] 3.09

 

 

 

'''Interpreter:''' [[Perl]] any 5.X

 

my $length = length "Hello, world!";

 

$length = strlen('Hello, world!');

 

DECLARE

string VARCHAR2( 50 ) := 'Hello, world!';

END;

 

'''Interpreter:''' [[Python]] 2.4

 

</pre>

 

'''Library:''' [[active_support]]

 

puts "Hello World".chars.length

 

(string-length "Hello world")

 

length("Hello, world!")

 

string := 'Hello, world!".

string size.

 

'''Interpreter:''' [[Standard ML of New Jersey | SML/NJ]] 110.60, [[Moscow ML]] 2.01 (January 2004)

 

val strlen = size "Hello, world!";

 

Basic version:

 

puts [format "length of \"%s\" in characters is %d" $s2 [string length $s2]]

 

With external utilities:

 

 

string='Hello, world!'

 

 

Len(string|varname)

 

Returns null if string|varname is null

 

'''Interpreter:''' HyperCard