task_url stringlengths 30 116 | task_name stringlengths 2 86 | task_description stringlengths 0 14.4k | language_url stringlengths 2 53 | language_name stringlengths 1 52 | code stringlengths 0 61.9k |
|---|---|---|---|---|---|
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Racket | Racket |
#lang racket
(define str "abcdefghijklmnopqrstuvwxyz")
(define n 10)
(define m 2)
(define start-char #\x)
(define start-str "xy")
;; starting from n characters in and of m length;
(substring str n (+ n m)) ; -> "kl"
;; starting from n characters in, up to the end of the string;
(substring str m) ; -> "klmnopq... |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Raku | Raku | my $str = 'abcdefgh';
my $n = 2;
my $m = 3;
say $str.substr($n, $m);
say $str.substr($n);
say $str.substr(0, *-1);
say $str.substr($str.index('d'), $m);
say $str.substr($str.index('de'), $m); |
http://rosettacode.org/wiki/Sum_and_product_of_an_array | Sum and product of an array | Task
Compute the sum and product of an array of integers.
| #WDTE | WDTE | let a => import 'arrays';
let s => import 'stream';
let sum array => a.stream array -> s.reduce 0 +;
let prod array => a.stream prod -> s.reduce 1 *; |
http://rosettacode.org/wiki/Sum_and_product_of_an_array | Sum and product of an array | Task
Compute the sum and product of an array of integers.
| #Wortel | Wortel | @sum [1 2 3 4] ; returns 10
@prod [1 2 3 4] ; returns 24 |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Ring | Ring |
sum = 0
for i =1 to 1000
sum = sum + 1 /(pow(i,2))
next
decimals(8)
see sum
|
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #REXX | REXX | abc = "abcdefghijklmnopqrstuvwxyz" /*define all lowercase Latin letters.*/
abcU = translate(abc) /* " " uppercase " " */
x = 'alphaBETA' /*define a string to a REXX variable. */
y = translate(x) ... |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Ring | Ring |
aString = "WELCOME TO THE ring programming language"
see lower(aString) + nl
see upper(aString) + nl
|
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Raku | Raku | $haystack.starts-with($needle) # True if $haystack starts with $needle
$haystack.contains($needle) # True if $haystack contains $needle
$haystack.ends-with($needle) # True if $haystack ends with $needle |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Retro | Retro | : startsWith? ( $1 $2 - f )
withLength &swap dip 0 swap ^strings'getSubset compare ;
"abcdefghijkl" "abcde" startsWith?
"abcdefghijkl" "bcd" startsWith?
"abcdefghijkl" "bcd" ^strings'search
"abcdefghijkl" "zmq" ^strings'search
: endsWith? ( $1 $2 - f )
swap withLength + over getLength - compare ;
"abcdefghi... |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #PHP | PHP | <?php
foreach (array('møøse', '𝔘𝔫𝔦𝔠𝔬𝔡𝔢', 'J̲o̲s̲é̲') as $s1) {
printf('String "%s" measured with strlen: %d mb_strlen: %s grapheme_strlen %s%s',
$s1, strlen($s1),mb_strlen($s1), grapheme_strlen($s1), PHP_EOL);
}
|
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #PicoLisp | PicoLisp | (let Str "møøse"
(prinl "Character Length of \"" Str "\" is " (length Str))
(prinl "Byte Length of \"" Str "\" is " (size Str)) ) |
http://rosettacode.org/wiki/String_concatenation | String concatenation | String concatenation
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a string variable equal to any text value.
Create another string variable whose value is the original variable concatenated with another string literal.
To illustrate the operat... | #Yorick | Yorick | var1 = "Hello";
var2 = var1 + ", world!";
write, var1;
write, var2; |
http://rosettacode.org/wiki/String_concatenation | String concatenation | String concatenation
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a string variable equal to any text value.
Create another string variable whose value is the original variable concatenated with another string literal.
To illustrate the operat... | #Zig | Zig | const std = @import("std");
const debug = std.debug;
const heap = std.heap;
const mem = std.mem;
test "string concatenation" {
const hello = "Hello,";
debug.warn("\n{}{}\n", .{ hello, " world!" });
// Method 1: Array concatenation
//
// This only works if the values are known at compile-time... |
http://rosettacode.org/wiki/String_concatenation | String concatenation | String concatenation
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a string variable equal to any text value.
Create another string variable whose value is the original variable concatenated with another string literal.
To illustrate the operat... | #zkl | zkl | var s="Hello";
s2:=s+", world!"; s2.println(); //-->Hello, world!
s3:=String(s," ",s2); s3.println(); //-->Hello Hello, world! |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Raven | Raven | define println use $s
$s print "\n" print
"0123456789" as $str
$str 3 2 extract println # at 4th pos get 2 chars
$str 8 4 extract println # at 9th pos get 4 chars (when only 1 char available)
$str 3 $str length extract println # at 4th pos get all chars to end of str
$str 3 0x7FFFFFFF extr... |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #REBOL | REBOL | rebol [
Title: "Retrieve Substring"
URL: http://rosettacode.org/wiki/Substring#REBOL
]
s: "abcdefgh" n: 2 m: 3 char: #"d" chars: "cd"
; Note that REBOL uses base-1 indexing. Strings are series values,
; just like blocks or lists so I can use the same words to manipulate
; them. All these examples use the 'cop... |
http://rosettacode.org/wiki/Sum_and_product_of_an_array | Sum and product of an array | Task
Compute the sum and product of an array of integers.
| #Wren | Wren | import "/math" for Nums
var a = [7, 10, 2, 4, 6, 1, 8, 3, 9, 5]
System.print("Array : %(a)")
System.print("Sum : %(Nums.sum(a))")
System.print("Product : %(Nums.prod(a))") |
http://rosettacode.org/wiki/Sum_and_product_of_an_array | Sum and product of an array | Task
Compute the sum and product of an array of integers.
| #XPL0 | XPL0 | code CrLf=9, IntOut=11;
func SumProd(A, L);
int A, L;
int S, P, I;
[S:= 0; P:= 1;
for I:= 0 to L-1 do [S:= S+A(I); P:= P*A(I)];
IntOut(0, S); CrLf(0);
IntOut(0, P); CrLf(0);
]; \SumSq
SumProd([1,2,3,4,5,6,7,8,9,10], 10) |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #RLaB | RLaB |
>> sum( (1 ./ [1:1000]) .^ 2 ) - const.pi^2/6
-0.000999500167
|
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Ruby | Ruby | puts (1..1000).inject{ |sum, x| sum + 1.0 / x ** 2 } |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Ruby | Ruby | "alphaBETA".downcase # => "alphabeta"
"alphaBETA".upcase # => "ALPHABETA"
"alphaBETA".swapcase # => "ALPHAbeta"
"alphaBETA".capitalize # => "Alphabeta" |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Rust | Rust | fn main() {
println!("{}", "jalapeño".to_uppercase()); // JALAPEÑO
println!("{}", "JALAPEÑO".to_lowercase()); // jalapeño
} |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #REXX | REXX | /*REXX program demonstrates some basic character string testing (for matching). */
parse arg A B /*obtain A and B from the command line.*/
say 'string A = ' A /*display string A to the terminal.*/
say 'string B = ' B ... |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #PL.2FI | PL/I | declare WS widechar (13) initial ('Hello world.');
put ('Character length=', length (WS));
put skip list ('Byte length=', size(WS));
declare SM graphic (13) initial ('Hello world');
put ('Character length=', length(SM));
put skip list ('Byte length=', size(trim(SM))); |
http://rosettacode.org/wiki/String_concatenation | String concatenation | String concatenation
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a string variable equal to any text value.
Create another string variable whose value is the original variable concatenated with another string literal.
To illustrate the operat... | #Zoea | Zoea |
program: string_concat
input: ['hello', 'literal']
output: 'hello literal'
|
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #ReScript | ReScript | let s = "ABCDEFGH"
let from = 2
let length = 3
Js.log2("Original string: ", s)
Js.log(Js.String.substrAtMost(~from, ~length, s))
Js.log(Js.String.substr(~from, s))
Js.log(Js.String.substrAtMost(~from=0, ~length=(Js.String2.length(s) - 1), s))
Js.log(Js.String.substrAtMost(~from=(Js.String.indexOf("B", s)), ~lengt... |
http://rosettacode.org/wiki/Sum_and_product_of_an_array | Sum and product of an array | Task
Compute the sum and product of an array of integers.
| #XSLT | XSLT | <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text" />
<xsl:template name="sum-prod">
<xsl:param name="values" />
<xsl:param name="sum" select="0" />
<xsl:param name="prod" select="1" />
<xsl:choose>
<xsl:when test="not($values)">
... |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Run_BASIC | Run BASIC |
for i =1 to 1000
sum = sum + 1 /( i^2)
next i
print sum |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Scala | Scala | val s="alphaBETA"
println(s.toUpperCase) //-> ALPHABETA
println(s.toLowerCase) //-> alphabeta
println(s.capitalize) //-> AlphaBETA
println(s.reverse) //-> ATEBahpla |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Scheme | Scheme | (define s "alphaBETA")
(list->string (map char-upcase (string->list s)))
(list->string (map char-downcase (string->list s))) |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Ring | Ring |
aString = "Welcome to the Ring Programming Language"
bString = "Ring"
bStringIndex = substr(aString,bString)
if bStringIndex > 0 see "" + bStringIndex + " : " + bString ok
|
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Ruby | Ruby | p 'abcd'.start_with?('ab') #returns true
p 'abcd'.end_with?('ab') #returns false
p 'abab'.include?('bb') #returns false
p 'abab'.include?('ab') #returns true
p 'abab'['bb'] #returns nil
p 'abab'['ab'] #returns "ab"
p 'abab'.index('bb') #returns nil
p 'abab'.index('ab') ... |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #PL.2FSQL | PL/SQL | DECLARE
string VARCHAR2(50) := 'Hello, world!';
stringlength NUMBER;
BEGIN
stringlength := LENGTHB(string);
END; |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #REXX | REXX | /*REXX program demonstrates various ways to extract substrings from a string of characters.*/
$='abcdefghijk'; n=4; m=3 /*define some constants: string, index, length of string. */
say 'original string='$ /* [↑] M can be zero (which indicates a null string).*/
L=length($) ... |
http://rosettacode.org/wiki/Sum_and_product_of_an_array | Sum and product of an array | Task
Compute the sum and product of an array of integers.
| #Yabasic | Yabasic | dim array(5)
data 1, 2, 3, 4, 5
for index = 1 to arraysize(array(), 1)
read array(index)
next index
sum = 0
prod = 1
for index = 1 to arraysize(array(), 1)
sum = sum + array(index)
prod = prod * array(index)
next index
print "The sum is ", sum //15
print "and the product is ", prod //120
end |
http://rosettacode.org/wiki/Sum_and_product_of_an_array | Sum and product of an array | Task
Compute the sum and product of an array of integers.
| #zkl | zkl | fcn sum(vals){vals.reduce('+,0)}
fcn product(vals){vals.reduce('*,1)} |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Rust | Rust | const LOWER: i32 = 1;
const UPPER: i32 = 1000;
// Because the rule for our series is simply adding one, the number of terms are the number of
// digits between LOWER and UPPER
const NUMBER_OF_TERMS: i32 = (UPPER + 1) - LOWER;
fn main() {
// Formulaic method
println!("{}", (NUMBER_OF_TERMS * (LOWER + UPPER)) /... |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Sed | Sed | echo "alphaBETA" | sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'
echo "alphaBETA" | sed 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/' |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Seed7 | Seed7 | writeln(upper("alphaBETA"));
writeln(lower("alphaBETA"));
|
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Run_BASIC | Run BASIC | s1$ = "abc def ghi klmnop"
s2$ = "abc" ' begins with
s3$ = "ef" ' is in the string
s4$ = "nop" ' ends with
sn2$ = "abcx" ' not begins with
sn3$ = "efx" ' not in the string
sn4$ = "nopx" ' not ends with
if left$(s1$,len(s2$)) <> s2$ then a$ = "Not "
print "String:";s1$;" does ";a$;"begin with:";s2$
if... |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Rust | Rust | fn print_match(possible_match: Option<usize>) {
match possible_match {
Some(match_pos) => println!("Found match at pos {}", match_pos),
None => println!("Did not find any matches")
}
}
fn main() {
let s1 = "abcd";
let s2 = "abab";
let s3 = "ab";
// Determining if the first st... |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #Pop11 | Pop11 | lvars str = 'Hello, world!';
lvars len = length(str); |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #PostScript | PostScript |
(Hello World) length =
11
|
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Ring | Ring | cStr = "a":"h" # 'abcdefgh'
n = 3 m = 3
# starting from n characters in and of m length
See substr(cStr,n, m) + nl #=> cde
# starting from n characters in, up to the end of the string
See substr(cStr,n) + nl #=> cdefgh
# whole string minus last character
See substr(cstr,1,len(cStr)-1) + nl #=> ab... |
http://rosettacode.org/wiki/Sum_and_product_of_an_array | Sum and product of an array | Task
Compute the sum and product of an array of integers.
| #Zoea | Zoea |
program: sum_and_product
case: 1
input: [3,5]
output: [8,15]
case: 2
input: [2,3,4]
output: [9,24]
|
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #SAS | SAS | data _null_;
s=0;
do n=1 to 1000;
s+1/n**2; /* s+x is synonym of s=s+x */
end;
e=s-constant('pi')**2/6;
put s e;
run; |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Scala | Scala | scala> 1 to 1000 map (x => 1.0 / (x * x)) sum
res30: Double = 1.6439345666815615 |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #SenseTalk | SenseTalk |
set letters to "alphaBETA"
put lowercase of letters // alphabeta
put uppercase of letters // ALPHABETA
put capitalized of letters // Alphabeta
repeat with each character of letters by reference
if it is an uppercase
set it to lowercase of it
else
set it to uppercase of it
end if
end repeat
put letters //AL... |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Sidef | Sidef | say "alphaBETA".lc; #=> alphabeta
say "alphaBETA".uc; #=> ALPHABETA
say "alphaBETA".tc; #=> AlphaBETA
say "alpha BETA".wc; #=> Alpha Beta
say "alpha BETA".tc; #=> Alpha BETA
say "alpha BETA".tclc; #=> Alpha beta |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Scala | Scala | "abcd".startsWith("ab") //returns true
"abcd".endsWith("zn") //returns false
"abab".contains("bb") //returns false
"abab".contains("ab") //returns true
var loc="abab".indexOf("bb") //returns -1
loc = "abab".indexOf("ab") //returns 0
loc = "abab".indexOf("ab", loc+1) //returns 2 |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Seed7 | Seed7 | $ include "seed7_05.s7i";
const proc: main is func
local
var integer: position is 0;
begin
writeln(startsWith("abcd", "ab")); # write TRUE
writeln(endsWith("abcd", "zn")); # write FALSE
writeln(pos("abab", "bb") <> 0); # write FALSE
writeln(pos("abab", "ab") <> 0); # write TRUE
write... |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #Potion | Potion | "møøse" length print
"𝔘𝔫𝔦𝔠𝔬𝔡𝔢" length print
"J̲o̲s̲é̲" length print |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #PowerShell | PowerShell | $s = "Hëlló Wørłð"
$s.Length |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #RPG | RPG | * 1...5....1....5....2....5..
D myString S 30 inz('Liebe bewegt das Universum!')
D output S 30 inz('')
D n S 2 0 inz(1)
... |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Ruby | Ruby | str = 'abcdefgh'
n = 2
m = 3
puts str[n, m] #=> cde
puts str[n..m] #=> cd
puts str[n..-1] #=> cdefgh
puts str[0..-2] #=> abcdefg
puts str[str.index('d'), m] #=> def
puts str[str.index('de'), m] #=> def
puts str[/a.*d/] #=> abcd |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Scheme | Scheme | (define (sum a b fn)
(do ((i a (+ i 1))
(result 0 (+ result (fn i))))
((> i b) result)))
(sum 1 1000 (lambda (x) (/ 1 (* x x)))) ; fraction
(exact->inexact (sum 1 1000 (lambda (x) (/ 1 (* x x))))) ; decimal |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Simula | Simula | TEXT soup, lower;
soup :- "alphaBETA";
lower :- LOWCASE(COPY(soup)); ! COPY, else soup is changed;
OutText("upper: "); OutText(UPCASE("alphaBETA"));
OutText(", lower: "); OutText(lower);
OutText(", soup: "); OutText(soup); Outimage; |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Slate | Slate | 'alphaBETA' toLowercase.
'alphaBETA' toUppercase. |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Sidef | Sidef | var first = "abc-abcdef-abcd";
var second = "abc";
say first.begins_with(second); #=> true
say first.contains(second); #=> true
say first.ends_with(second); #=> false
# Get and print the location of the match
say first.index(second); #=> 0
# Find multiple occurrences of a string
var... |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Smalltalk | Smalltalk | a startsWith: b
a includesSubCollection: b. "inherited from superclass"
a includesString: b. "the same, but more readable"
a endsWith: b
a indexOfSubCollection: b "inherited"
a indexOfSubCollection: b startingAt: pos "inherited"
a indexOfString: b
a indexOfStringStartingAt: b
|
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #PureBasic | PureBasic | a = Len("Hello World") ;a will be 11 |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #Python | Python | print len('ascii')
# 5 |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Run_BASIC | Run BASIC | n = 2
m = 3
s$ = "abcd"
a$ = mid$(a$,n,m) ' starting from n characters in and of m length
a$ = mid$(a$,n) ' starting from n characters in, up to the end of the string
a$ = Print mid$(a$,1,(len(a$)-1)) ' whole string minus last character
a$ = mid$(a$,instr(a$,s$,1),m) ' startin... |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Rust | Rust |
let s = "abc文字化けdef";
let n = 2;
let m = 3;
// Print 3 characters starting at index 2 (c文字)
println!("{}", s.chars().skip(n).take(m).collect::<String>());
// Print all characters starting at index 2 (c文字化けdef)
println!("{}", s.chars().skip(n).collect::<String>());
// Print all characters except the ... |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Seed7 | Seed7 | $ include "seed7_05.s7i";
include "float.s7i";
const func float: invsqr (in float: n) is
return 1.0 / n**2;
const proc: main is func
local
var integer: i is 0;
var float: sum is 0.0;
begin
for i range 1 to 1000 do
sum +:= invsqr(flt(i));
end for;
writeln(sum digits 6 lpad 8);
end... |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Sidef | Sidef | say sum(1..1000, {|n| 1 / n**2 }) |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Smalltalk | Smalltalk | 'ALPHAbeta' asUppercase "->'ALPHABETA' "
'ALPHAbeta' asLowercase "-> 'alphabeta' " |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #SNOBOL4 | SNOBOL4 | define('uc(str)') :(uc_end)
uc uc = replace(str,&lcase,&ucase) :(return)
uc_end
define('lc(str)') :(lc_end)
lc lc = replace(str,&ucase,&lcase) :(return)
lc_end
define('ucfirst(str)ch') :(ucfirst_end)
ucfirst str len(1) . ch = uc(ch)
ucfirst = str :(return)
ucfirst_end
... |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #SNOBOL4 | SNOBOL4 | s1 = 'abcdabefgab'
s2 = 'ab'
s3 = 'xy'
OUTPUT = ?(s1 ? POS(0) s2) "1. " s2 " begins " s1
OUTPUT = ?(s1 ? POS(0) s3) "1. " s3 " begins " s1 ;# fails
n = 0
again s1 POS(n) ARB s2 @a :F(p3)
OUTPUT = "2. " s2 " found at position "
+ a - SIZE(s2) "... |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Standard_ML | Standard ML | String.isPrefix "ab" "abcd"; (* returns true *)
String.isSuffix "zn" "abcd"; (* returns false *)
String.isSubstring "bb" "abab"; (* returns false *)
String.isSubstring "ab" "abab"; (* returns true *)
#2 (Substring.base (#2 (Substring.position "bb" (Substring.full "abab")))); (* returns 4 *)
val loc = #2 (Substring.base... |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #R | R | a <- "m\u00f8\u00f8se"
print(nchar(a, type="bytes")) # print 7 |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #SAS | SAS | data _null_;
a="abracadabra";
b=substr(a,2,3); /* first number is position, starting at 1,
second number is length */
put _all_;
run; |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Slate | Slate | ((1 to: 1000) reduce: [|:x :y | x + (y squared reciprocal as: Float)]). |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #SQL | SQL | DECLARE @s VARCHAR(10)
SET @s = 'alphaBETA'
print UPPER(@s)
print LOWER(@s) |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #SQL_PL | SQL PL |
VALUES UPPER('alphaBETA');
VALUES LOWER('alphaBETA');
VALUES initcap('alphaBETA');
-- Within a SQL query.
SELECT UPPER('alphaBETA') FROM sysibm.sysdummy1;
|
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Swift | Swift | var str = "Hello, playground"
str.hasPrefix("Hell") //True
str.hasPrefix("hell") //False
str.containsString("llo") //True
str.containsString("xxoo") //False
str.hasSuffix("playground") //True
str.hasSuffix("world") //False |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Tailspin | Tailspin |
templates find&{s:}
when <'$s;.*'> do '$; starts with $s;' !
when <'.*$s;'> do '$; ends with $s;' !
when <'.*$s;.*'> do '$; contains $s;' !
otherwise '$s; cannot be found in $;' !
end find
'abcd' -> find&{s:'ab'} -> !OUT::write
'
' -> !OUT::write
'abcd' -> find&{s:'cd'} -> !OUT::write
'
' -> !OUT::write
'ab... |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #Racket | Racket | (define str "J\u0332o\u0332s\u0332e\u0301\u0332") |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Sather | Sather | class MAIN is
main is
s ::= "hello world shortest program";
#OUT + s.substring(12, 5) + "\n";
#OUT + s.substring(6) + "\n";
#OUT + s.head( s.size - 1) + "\n";
#OUT + s.substring(s.search('w'), 5) + "\n";
#OUT + s.substring(s.search("ro"), 3) + "\n";
end;
end; |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Scala | Scala | object Substring {
// Ruler 1 2 3 4 5 6
// 012345678901234567890123456789012345678901234567890123456789012
val str = "The good life is one inspired by love and guided by knowledge."
val (n, m) = (21, 16) // An one-liner to set n = 21, m = 16
// Sta... |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Smalltalk | Smalltalk | ( (1 to: 1000) fold: [:sum :aNumber |
sum + (aNumber squared reciprocal) ] ) asFloat displayNl. |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Standard_ML | Standard ML | val strupr = String.map Char.toUpper;
val strlwr = String.map Char.toLower; |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Stata | Stata | . scalar s="alphaBETA"
. di strupper(s)
ALPHABETA
. di strlower(s)
alphabeta |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Tcl | Tcl | set isPrefix [string equal -length [string length $needle] $haystack $needle]
set isContained [expr {[string first $needle $haystack] >= 0}]
set isSuffix [string equal $needle [string range $haystack end-[expr {[string length $needle]-1}] end]] |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #Raku | Raku | say 'møøse'.encode('UTF-8').bytes; |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #REBOL | REBOL | ;; r2
length? "møøse"
;; r3
length? to-binary "møøse" |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Scheme | Scheme | (define s "Hello, world!")
(define n 5)
(define m (+ n 6))
(display (substring s n m))
(newline)
(display (substring s n))
(newline)
(display (substring s 0 (- (string-length s) 1)))
(newline)
(display (substring s (string-index s #\o) m))
(newline)
(display (substring s (string-contains s "lo") m))
(newline) |
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #SQL | SQL | CREATE TABLE t1 (n REAL);
-- this is postgresql specific, fill the table
INSERT INTO t1 (SELECT generate_series(1,1000)::REAL);
WITH tt AS (
SELECT 1/(n*n) AS recip FROM t1
) SELECT SUM(recip) FROM tt;
|
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Swift | Swift | import Foundation
println("alphaBETA".uppercaseString)
println("alphaBETA".lowercaseString)
println("foO BAr".capitalizedString) |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Tcl | Tcl | set string alphaBETA
# three built-in case conversion commands
string toupper $string ;# ==> ALPHABETA
string tolower $string ;# ==> alphabeta
string totitle $string ;# ==> Alphabeta
# not built-in
proc swapcase {s} {
foreach char [split $s ""] {
if {$char eq [set CHAR [string toupper $char]]} {
... |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #TUSCRIPT | TUSCRIPT |
$$ MODE TUSCRIPT
ASK "string1", string1=""
ASK "string2", string2=""
IF (string1.sw.string2) THEN
PRINT string1," starts with ",string2
ELSE
PRINT string1," not starts with ",string2
ENDIF
SET beg=STRING (string1,string2,0,0,0,end)
IF (beg!=0) THEN
PRINT string1," contains ",string2
PRINT " starting i... |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #ReScript | ReScript | Js.String2.length("abcd") == 4 |
http://rosettacode.org/wiki/Substring | Substring |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Sed | Sed |
# 2 chars starting from 3rd
$ echo string | sed -r 's/.{3}(.{2}).*/\1/'
in
# remove first 3 chars
echo string | sed -r 's/^.{3}//'
# delete last char
$ echo string | sed -r 's/.$//'
strin
# `r' with two following chars
$ echo string | sed -r 's/.*(r.{2}).*/\1/'
rin
|
http://rosettacode.org/wiki/Sum_of_a_series | Sum of a series | Compute the nth term of a series, i.e. the sum of the n first terms of the corresponding sequence.
Informally this value, or its limit when n tends to infinity, is also called the sum of the series, thus the title of this task.
For this task, use:
S
n
=
∑
k
=
1
n
1
k
2
{\displa... | #Stata | Stata | function series(n) {
return(sum((n..1):^-2))
}
series(1000)-pi()^2/6
-.0009995002 |
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #Toka | Toka | needs ctype
[ i 1 - ] is i
[ string.getLength 0 [ dup i + c@ toupper over i + c! ] countedLoop ] is string.toUpper
[ string.getLength 0 [ dup i + c@ tolower over i + c! ] countedLoop ] is string.toLower
" alphaBETA" string.toUpper type cr
" alphaBETA" string.toLower type cr
|
http://rosettacode.org/wiki/String_case | String case | Task
Take the string alphaBETA and demonstrate how to convert it to:
upper-case and
lower-case
Use the default encoding of a string literal or plain ASCII if there is no string literal in your language.
Note: In some languages alphabets toLower and toUpper is not reversable.
Show any additional... | #TorqueScript | TorqueScript | $string = "alphaBETA";
$upperCase = strUpr($string);
$lowerCase = strLwr($string);
|
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #TXR | TXR | (tree-case *args*
((big small)
(cond
((< (length big) (length small))
(put-line `@big is shorter than @small`))
((str= big small)
(put-line `@big and @small are equal`))
((starts-with small big)
(put-line `@small is a prefix of @big`))
((ends-with small big)
(put-line `@... |
http://rosettacode.org/wiki/String_matching | String matching |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Vala | Vala | void main() {
var text = "一二三四五六七八九十";
var starts = "一二";
var ends = "九十";
var contains = "五六";
var not_contain = "百";
stdout.printf(@"text: $text\n\n", );
stdout.printf(@"starts with $starts: $(text.has_prefix(starts))\n");
stdout.printf(@"ends with $ends: $(text.has_suffix(ends))\n")... |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #Retro | Retro | 'møøse s:length n:put |
http://rosettacode.org/wiki/String_length | String length | Task
Find the character and byte length of a string.
This means encodings like UTF-8 need to be handled properly, as there is not necessarily a one-to-one relationship between bytes and characters.
By character, we mean an individual Unicode code point, not a user-visible grapheme containing combining characters.
F... | #REXX | REXX | /*REXX program displays the lengths (in bytes/characters) for various strings. */
/* 1 */ /*a handy-dandy over/under scale.*/
/* 123456789012345 */
hello = 'Hello, world!' ; say 'the length of HELLO is ' length(hello)
happy = 'Hello, world!... |
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