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/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #Factor | Factor |
USING: ascii io math.statistics prettyprint sequences
splitting ;
IN: rosetta-code.word-count
lines " " join " .,?!:;()\"-" split harvest [ >lower ] map
sorted-histogram <reversed> 10 head .
|
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #FreeBASIC | FreeBASIC |
#Include "file.bi"
type tally
as string s
as long l
end type
Sub quicksort(array() As String,begin As Long,Finish As Long)
Dim As Long i=begin,j=finish
Dim As String x =array(((I+J)\2))
While I <= J
While array(I) < X :I+=1:Wend
While array(J) > X :J-=1:Wend
If I<=J Then Swap array(I),array(J): ... |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #Java | Java | <!DOCTYPE html><html><head><meta charset="UTF-8">
<title>Wireworld</title>
<script src="wireworld.js"></script></head><body>
<input type='file' accept='text/plain' onchange='openFile( event )' />
<br /></body></html> |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #mIRC_Scripting_Language | mIRC Scripting Language | alias CreateMyWindow {
.window -Cp +d @WindowName 600 480
}
|
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #Nanoquery | Nanoquery | w = new(Nanoquery.Util.Windows.Window).setSize(300,300).setTitle("Nanoquery").show() |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #NetRexx | NetRexx | /* NetRexx */
options replace format comments java crossref symbols binary
import javax.swing.JFrame
import javax.swing.JLabel
import java.awt.BorderLayout
import java.awt.Font
import java.awt.Color
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
parse arg showText .
select
when s... |
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #jq | jq | # Simple greedy algorithm.
# Note: very long words are not truncated.
# input: a string
# output: an array of strings
def wrap_text(width):
reduce splits("\\s+") as $word
([""];
.[length-1] as $current
| ($word|length) as $wl
| (if $current == "" then 0 else 1 end) as $pad
| if $wl + $pad + ($... |
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #Julia | Julia | using TextWrap
text = """Reformat the single paragraph in 'text' to fit in lines of no more
than 'width' columns, and return a new string containing the entire
wrapped paragraph. As with wrap(), tabs are expanded and other
whitespace characters converted to space. See TextWrapper class for
available... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #Rust | Rust | extern crate xml;
use std::collections::HashMap;
use std::str;
use xml::writer::{EmitterConfig, XmlEvent};
fn characters_to_xml(characters: HashMap<String, String>) -> String {
let mut output: Vec<u8> = Vec::new();
let mut writer = EmitterConfig::new()
.perform_indent(true)
.create_writer(... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #Scala | Scala | val names = List("April", "Tam O'Shanter", "Emily")
val remarks = List("Bubbly: I'm > Tam and <= Emily", """Burns: "When chapman billies leave the street ..."""", "Short & shrift")
def characterRemarks(names: List[String], remarks: List[String]) = <CharacterRemarks>
{ names zip remarks map { case (name, remark) =... |
http://rosettacode.org/wiki/XML/Input | XML/Input | Given the following XML fragment, extract the list of student names using whatever means desired. If the only viable method is to use XPath, refer the reader to the task XML and XPath.
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" /... | #PHP | PHP | <?php
$data = '<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" />
<Student Name="Chad" Gender="M" DateOfBirth="1991-05-06" />
<Student Name="Dave" Gender="M" DateOfBirth="1992-07-08">
<Pet Type="dog" Name="Rover" />
</Stude... |
http://rosettacode.org/wiki/Arrays | Arrays | This task is about arrays.
For hashes or associative arrays, please see Creating an Associative Array.
For a definition and in-depth discussion of what an array is, see Array.
Task
Show basic array syntax in your language.
Basically, create an array, assign a value to it, and retrieve an element (if available,... | #Yabasic | Yabasic | dim a(10) // create a numeric array with 11 elements, from 0 to 10
// Indexed at your preference (0 to 9 or 1 to 10)
print arraysize(a(), 1) // this function return the element's higher number of an array
a(7) = 12.3 // access to an element of the array
redim a(20) // alias of 'dim'. Grouth size of array
... |
http://rosettacode.org/wiki/100_doors | 100 doors | There are 100 doors in a row that are all initially closed.
You make 100 passes by the doors.
The first time through, visit every door and toggle the door (if the door is closed, open it; if it is open, close it).
The second time, only visit every 2nd door (door #2, #4, #6, ...), and toggle it.
The third... | #ooRexx | ooRexx | doors = .array~new(100) -- array containing all of the doors
do i = 1 to doors~size -- initialize with a collection of closed doors
doors[i] = .door~new(i)
end
do inc = 1 to doors~size
do d = inc to doors~size by inc
doors[d]~toggle
end
end
say "The open doors after 100 passes:"
do door over doors
... |
http://rosettacode.org/wiki/Weird_numbers | Weird numbers | In number theory, a weird number is a natural number that is abundant but not semiperfect (and therefore not perfect either).
In other words, the sum of the proper divisors of the number (divisors including 1 but not itself) is greater than the number itself (the number is abundant), but no subset of those divisors su... | #Quackery | Quackery | [ stack ] is target ( --> s )
[ stack ] is success ( --> s )
[ stack ] is makeable ( --> s )
[ bit makeable take
2dup & 0 !=
dip [ | makeable put ] ] is made ( n --> b )
[ ' [ 0 ] swap
dup ... |
http://rosettacode.org/wiki/Weird_numbers | Weird numbers | In number theory, a weird number is a natural number that is abundant but not semiperfect (and therefore not perfect either).
In other words, the sum of the proper divisors of the number (divisors including 1 but not itself) is greater than the number itself (the number is abundant), but no subset of those divisors su... | #Racket | Racket | #lang racket
(require math/number-theory)
(define (abundant? n proper-divisors)
(> (apply + proper-divisors) n))
(define (semi-perfect? n proper-divisors)
(let recur ((ds proper-divisors) (n n))
(or (zero? n)
(and (positive? n)
(pair? ds)
(or (recur (cdr ds) n)
... |
http://rosettacode.org/wiki/Write_language_name_in_3D_ASCII | Write language name in 3D ASCII | Task
Write/display a language's name in 3D ASCII.
(We can leave the definition of "3D ASCII" fuzzy,
so long as the result is interesting or amusing,
not a cheap hack to satisfy the task.)
Related tasks
draw a sphere
draw a cuboid
draw a rotating cube
draw a Deathstar
| #Raven | Raven | [
" ##### #### # # #### # #"
" # # # # # # # ## #"
" # # # # # # ### # # #"
" ##### ###### # # ### # # #"
" # # # # # # # # ##"
" # # # # # #### # #"
] as $str
"/" as $r1
">" as $r2
#$str each "%s\n" print
$str each... |
http://rosettacode.org/wiki/Write_language_name_in_3D_ASCII | Write language name in 3D ASCII | Task
Write/display a language's name in 3D ASCII.
(We can leave the definition of "3D ASCII" fuzzy,
so long as the result is interesting or amusing,
not a cheap hack to satisfy the task.)
Related tasks
draw a sphere
draw a cuboid
draw a rotating cube
draw a Deathstar
| #REXX | REXX | /*REXX program that displays a "REXX" 3D "ASCII art" as a logo. */
signal . /* Uses left-hand shadows, slightly raised view.
0=5~2?A?2?A?
@)E)3@)B)1)2)8()2)1)2)8()2)
@]~")2@]0`)0@)%)6{)%)0@)%)6{)%)
#E)1#A@0}2)4;2(1}2)4;2(
#3??3@0#2??@1}2)2;2(3}2)2;2(
#2@5@)@2@0#2@A}2)0;2(5}2)0;2(
#2@?"@)@2@0#2@?7... |
http://rosettacode.org/wiki/Web_scraping | Web scraping | Task
Create a program that downloads the time from this URL: http://tycho.usno.navy.mil/cgi-bin/timer.pl and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.
If possible,... | #Gambas | Gambas | Public Sub Main()
Dim sWeb, sTemp, sOutput As String 'Variables
Shell "wget -O /tmp/web http://tycho.usno.navy.mil/cgi-bin/timer.pl" Wait 'Use 'wget' to save the web file in /tmp/
sWeb = File.Load("/tmp/web") 'Open file and st... |
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #Frink | Frink | d = new dict
for w = select[wordList[read[normalizeUnicode["https://www.gutenberg.org/files/135/135-0.txt", "UTF-8"]]], %r/[[:alnum:]]/ ]
d.increment[lc[w], 1]
println[join["\n", first[reverse[sort[array[d], {|a,b| a@1 <=> b@1}]], 10]]] |
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #FutureBasic | FutureBasic |
include "NSLog.incl"
local fn WordFrequency( textStr as CFStringRef, caseSensitive as Boolean, ascendingOrder as Boolean ) as CFStringRef
'~'1
CFStringRef wrd
CFDictionaryRef dict
// Depending on the value of the caseSensitive Boolean function parameter above, lowercase incoming text
if caseSensitive == NO th... |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #JavaScript | JavaScript | <!DOCTYPE html><html><head><meta charset="UTF-8">
<title>Wireworld</title>
<script src="wireworld.js"></script></head><body>
<input type='file' accept='text/plain' onchange='openFile( event )' />
<br /></body></html> |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #jq | jq | def lines: split("\n")|length;
def cols: split("\n")[0]|length + 1; # allow for the newline
# Is there an "H" at [x,y] relative to position i, assuming the width is w?
# Input is an array; 72 is "H"
def isH(x; y; i; w): if .[i+ w*y + x] == 72 then 1 else 0 end;
def neighborhood(i;w):
isH(-1; -1; i; w) + isH(0;... |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #Nim | Nim | import gintro/[glib, gobject, gtk, gio]
proc activate(app: Application) =
## Activate the application.
let window = newApplicationWindow(app)
window.setTitle("Window for Rosetta")
window.setSizeRequest(640, 480)
window.showAll()
let app = newApplication(Application, "Rosetta.Window")
discard app.connect("... |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #Objeck | Objeck |
use Gtk2;
bundle Default {
class GtkHello {
function : Main(args : String[]) ~ Nil {
window := GtkWindow->New();
delete_callback := Events->DeleteEvent(GtkWidget) ~ Nil;
window->SignalConnect(Signal->Destroy, window->As(GtkWidget), delete_callback);
window->SetTitle("Title");
win... |
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #Klingphix | Klingphix | :wordwrap %long !long
%ps 0 !ps
split
len [ drop
pop swap len $ps + !ps
$ps $long > [ len !ps nl ] if
print " " print
$ps 1 + !ps
] for
drop
;
"tlhIngan Hol jatlhwI', pIvan. ghomuv! nItebHa' mu'ghomvam wIchenmoHlaH. boQchugh Hoch, mu'ghom Dun mojlaH.
tlhIngan m... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #SenseTalk | SenseTalk | put ("April", "Tam O'Shanter", "Emily") into names
put ("Bubbly: I'm > Tam and <= Emily", <<Burns: "When chapman billies leave the street ...">>, "Short & shrift") into remarks
put (_tag: "CharacterRemarks") as tree into document
repeat for each item name in names
insert (_tag: "Character", name: name, _children: item... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #Sidef | Sidef | require('XML::Mini::Document');
var students = [
["April", "Bubbly: I'm > Tam and <= Emily"],
["Tam O'Shanter", "Burns: \"When chapman billies leave the street ...\""],
["Emily", "Short & shrift"]
];
var doc = %s'XML::Mini::Document'.n... |
http://rosettacode.org/wiki/XML/Input | XML/Input | Given the following XML fragment, extract the list of student names using whatever means desired. If the only viable method is to use XPath, refer the reader to the task XML and XPath.
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" /... | #PicoLisp | PicoLisp | (load "@lib/xm.l")
(mapcar
'((L) (attr L 'Name))
(body (in "file.xml" (xml))) ) |
http://rosettacode.org/wiki/Arrays | Arrays | This task is about arrays.
For hashes or associative arrays, please see Creating an Associative Array.
For a definition and in-depth discussion of what an array is, see Array.
Task
Show basic array syntax in your language.
Basically, create an array, assign a value to it, and retrieve an element (if available,... | #Z80_Assembly | Z80 Assembly | Array: ;an array located in RAM. Its values can be updated freely.
byte 0,0,0,0,0
byte 0,0,0,0,0
byte 0,0,0,0,0
byte 0,0,0,0,0 |
http://rosettacode.org/wiki/100_doors | 100 doors | There are 100 doors in a row that are all initially closed.
You make 100 passes by the doors.
The first time through, visit every door and toggle the door (if the door is closed, open it; if it is open, close it).
The second time, only visit every 2nd door (door #2, #4, #6, ...), and toggle it.
The third... | #OpenEdge.2FProgress | OpenEdge/Progress | DEFINE VARIABLE lopen AS LOGICAL NO-UNDO EXTENT 100.
DEFINE VARIABLE idoor AS INTEGER NO-UNDO.
DEFINE VARIABLE ipass AS INTEGER NO-UNDO.
DEFINE VARIABLE cresult AS CHARACTER NO-UNDO.
DO ipass = 1 TO 100:
idoor = 0.
DO WHILE idoor <= 100:
idoor = idoor + ipass.
IF idoor <= 100 THE... |
http://rosettacode.org/wiki/Weird_numbers | Weird numbers | In number theory, a weird number is a natural number that is abundant but not semiperfect (and therefore not perfect either).
In other words, the sum of the proper divisors of the number (divisors including 1 but not itself) is greater than the number itself (the number is abundant), but no subset of those divisors su... | #Raku | Raku | sub abundant (\x) {
my @l = x.is-prime ?? 1 !! flat
1, (2 .. x.sqrt.floor).map: -> \d {
my \y = x div d;
next if y * d !== x;
d !== y ?? (d, y) !! d
};
(my $s = @l.sum) > x ?? ($s, |@l.sort(-*)) !! ();
}
my @weird = (2, 4, {|($_ + 4, $_ + 6)} ... *).map: -> $n {
my ($sum... |
http://rosettacode.org/wiki/Write_language_name_in_3D_ASCII | Write language name in 3D ASCII | Task
Write/display a language's name in 3D ASCII.
(We can leave the definition of "3D ASCII" fuzzy,
so long as the result is interesting or amusing,
not a cheap hack to satisfy the task.)
Related tasks
draw a sphere
draw a cuboid
draw a rotating cube
draw a Deathstar
| #Ruby | Ruby | text = <<EOS
#### #
# # #
# # #
#### # # ### # #
# # # # # # # #
# # # # # # #
# # ### ### #
#
#
EOS
def banner3D_1(text, shift=-1)
txt = text.each_line.map{|line| line.gsub('#','__/').gsub(' ',' ')}
offset = Array.new(txt.size){|i... |
http://rosettacode.org/wiki/Web_scraping | Web scraping | Task
Create a program that downloads the time from this URL: http://tycho.usno.navy.mil/cgi-bin/timer.pl and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.
If possible,... | #Go | Go | package main
import (
"bytes"
"encoding/xml"
"fmt"
"io"
"net/http"
"regexp"
"time"
)
func main() {
resp, err := http.Get("http://tycho.usno.navy.mil/cgi-bin/timer.pl")
if err != nil {
fmt.Println(err) // connection or request fail
return
}
defer resp.Body.... |
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #Go | Go | package main
import (
"fmt"
"io/ioutil"
"log"
"regexp"
"sort"
"strings"
)
type keyval struct {
key string
val int
}
func main() {
reg := regexp.MustCompile(`\p{Ll}+`)
bs, err := ioutil.ReadFile("135-0.txt")
if err != nil {
log.Fatal(err)
}
text := string... |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #Julia | Julia | function surround2D(b, i, j)
h, w = size(b)
[b[x,y] for x in i-1:i+1, y in j-1:j+1 if (0 < x <= h && 0 < y <= w)]
end
surroundhas1or2(b, i, j) = 0 < sum(map(x->Char(x)=='H', surround2D(b, i, j))) <= 2 ? 'H' : '.'
function boardstep!(currentboard, nextboard)
x, y = size(currentboard)
for j in 1:y, i ... |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #Liberty_BASIC | Liberty BASIC |
WindowWidth = 840
WindowHeight = 600
dim p$( 40, 25), q$( 40, 25)
empty$ = " " ' white
tail$ = "t" ' yellow
head$ = "H" ' black
conductor$ = "." ' red
jScr = 0
nomainwin
menu #m, "File", "Load", [load], "Quit", [quit]
open "wire world" for graphics_nf_nsb as #m
#... |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #Objective-C | Objective-C | #include <Foundation/Foundation.h>
#include <AppKit/AppKit.h>
@interface Win : NSWindow
{
}
- (void)applicationDidFinishLaunching: (NSNotification *)notification;
- (BOOL)applicationShouldTerminateAfterLastWindowClosed: (NSNotification *)notification;
@end
@implementation Win : NSWindow
-(instancetype) init
{
i... |
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #Kotlin | Kotlin | // version 1.1.3
val text =
"In olden times when wishing still helped one, there lived a king " +
"whose daughters were all beautiful, but the youngest was so beautiful " +
"that the sun itself, which has seen so much, was astonished whenever " +
"it shone in her face. Close by the king's castle lay... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #Slate | Slate | lobby define: #remarks -> (
{'April' -> 'Bubbly: I\'m > Tam and <= Emily'.
'Tam O\'Shanter' -> 'Burns: "When chapman billies leave the street ..."'.
'Emily' -> 'Short & shrift'.
} as: Dictionary).
define: #writer -> (Xml Writer newOn: '' new writer).
writer inTag: 'CharacterRemarks' do:
[| :w |
lobby remarks key... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #Tcl | Tcl | proc xquote string {
list [string map "' ' \\\" " < > > < & &" $string]
}
proc < {name attl args} {
set res <$name
foreach {att val} $attl {
append res " $att='$val'"
}
if {[llength $args]} {
append res >
set sep ""
foreach a $args {
ap... |
http://rosettacode.org/wiki/XML/Input | XML/Input | Given the following XML fragment, extract the list of student names using whatever means desired. If the only viable method is to use XPath, refer the reader to the task XML and XPath.
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" /... | #Pike | Pike |
string in = "<Students>\n"
" <Student Name=\"April\" Gender=\"F\" DateOfBirth=\"1989-01-02\" />\n"
" <Student Name=\"Bob\" Gender=\"M\" DateOfBirth=\"1990-03-04\" />\n"
" <Student Name=\"Chad\" Gender=\"M\" DateOfBirth=\"1991-05-06\" />\n"
" <Student Name=\"Dave\"... |
http://rosettacode.org/wiki/Arrays | Arrays | This task is about arrays.
For hashes or associative arrays, please see Creating an Associative Array.
For a definition and in-depth discussion of what an array is, see Array.
Task
Show basic array syntax in your language.
Basically, create an array, assign a value to it, and retrieve an element (if available,... | #zkl | zkl | var array=List(); // array of size 0
array=(0).pump(10,List().write,5).copy(); // [writable] array of size 10 filled with 5
array[3]=4;
array[3] //-->4
array+9; //append a 9 to the end, same as array.append(9) |
http://rosettacode.org/wiki/100_doors | 100 doors | There are 100 doors in a row that are all initially closed.
You make 100 passes by the doors.
The first time through, visit every door and toggle the door (if the door is closed, open it; if it is open, close it).
The second time, only visit every 2nd door (door #2, #4, #6, ...), and toggle it.
The third... | #OxygenBasic | OxygenBasic | def doors 100
int door[doors],i ,j, c
string cr,tab,pr
'
for i=1 to doors
for j=i to doors step i
door[j]=1-door[j]
if door[j] then c++ else c--
next
next
'
cr=chr(13) chr(10)
pr="Doors Open: " c cr cr
'
for i=1 to doors
if door[i] then pr+=i cr
next
print pr
|
http://rosettacode.org/wiki/Weird_numbers | Weird numbers | In number theory, a weird number is a natural number that is abundant but not semiperfect (and therefore not perfect either).
In other words, the sum of the proper divisors of the number (divisors including 1 but not itself) is greater than the number itself (the number is abundant), but no subset of those divisors su... | #REXX | REXX | /*REXX program finds and displays N weird numbers in a vertical format (with index).*/
parse arg n cols . /*obtain optional arguments from the CL*/
if n=='' | n=="," then n= 25 /*Not specified? Then use the default.*/
if cols=='' | cols=="," then cols= 10 ... |
http://rosettacode.org/wiki/Write_language_name_in_3D_ASCII | Write language name in 3D ASCII | Task
Write/display a language's name in 3D ASCII.
(We can leave the definition of "3D ASCII" fuzzy,
so long as the result is interesting or amusing,
not a cheap hack to satisfy the task.)
Related tasks
draw a sphere
draw a cuboid
draw a rotating cube
draw a Deathstar
| #Rust | Rust | pub fn char_from_id(id: u8) -> char {
[' ', '#', '/', '_', 'L', '|', '\n'][id as usize]
}
const ID_BITS: u8 = 3;
pub fn decode(code: &[u8]) -> String {
let mut ret = String::new();
let mut carry = 0;
let mut carry_bits = 0;
for &b in code {
let mut bit_pos = ID_BITS - carry_bits;
... |
http://rosettacode.org/wiki/Write_language_name_in_3D_ASCII | Write language name in 3D ASCII | Task
Write/display a language's name in 3D ASCII.
(We can leave the definition of "3D ASCII" fuzzy,
so long as the result is interesting or amusing,
not a cheap hack to satisfy the task.)
Related tasks
draw a sphere
draw a cuboid
draw a rotating cube
draw a Deathstar
| #Scala | Scala | def ASCII3D = {
val name = """
*
** ** * * *
* * * * * * *
* * * * * * *
* * *** * ***
* * * * * * *
* * * * * * *
** ** * * *** * *
*
*
"""
// Create Array
def getMaxSize(s: String): (Int, Int)... |
http://rosettacode.org/wiki/Web_scraping | Web scraping | Task
Create a program that downloads the time from this URL: http://tycho.usno.navy.mil/cgi-bin/timer.pl and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.
If possible,... | #Groovy | Groovy | def time = "unknown"
def text = new URL('http://tycho.usno.navy.mil/cgi-bin/timer.pl').eachLine { line ->
def matcher = (line =~ "<BR>(.+) UTC")
if (matcher.find()) {
time = matcher[0][1]
}
}
println "UTC Time was '$time'" |
http://rosettacode.org/wiki/Web_scraping | Web scraping | Task
Create a program that downloads the time from this URL: http://tycho.usno.navy.mil/cgi-bin/timer.pl and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.
If possible,... | #Haskell | Haskell | import Data.List
import Network.HTTP (simpleHTTP, getResponseBody, getRequest)
tyd = "http://tycho.usno.navy.mil/cgi-bin/timer.pl"
readUTC = simpleHTTP (getRequest tyd)>>=
fmap ((!!2).head.dropWhile ("UTC"`notElem`).map words.lines). getResponseBody>>=putStrLn |
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #Groovy | Groovy | def topWordCounts = { String content, int n ->
def mapCounts = [:]
content.toLowerCase().split(/\W+/).each {
mapCounts[it] = (mapCounts[it] ?: 0) + 1
}
def top = (mapCounts.sort { a, b -> b.value <=> a.value }.collect{ it })[0..<n]
println "Rank Word Frequency\n==== ==== ========="
(0..<... |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #Logo | Logo | to wireworld :filename :speed ;speed in n times per second, approximated
Make "speed 60/:speed
wireworldread :filename
Make "bufferfield (mdarray (list :height :width) 0)
for [i 0 :height-1] [for [j 0 :width-1] [mdsetitem (list :i :j) :bufferfield mditem (list :i :j) :field]]
pu ht
Make "gen 0
while ["true] [ ;The user... |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #OCaml | OCaml | let () =
let top = Tk.openTk() in
Wm.title_set top "An Empty Window";
Wm.geometry_set top "240x180";
Tk.mainLoop ();
;; |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #OpenEdge_ABL.2FProgress_4GL | OpenEdge ABL/Progress 4GL |
DEFINE VAR C-Win AS WIDGET-HANDLE NO-UNDO.
CREATE WINDOW C-Win ASSIGN
HIDDEN = YES
TITLE = "OpenEdge Window Display"
HEIGHT = 10.67
WIDTH = 95.4
MAX-HEIGHT = 16
MAX-WIDTH = 95.4
VI... |
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #Lambdatalk | Lambdatalk |
{def text
Personne n’a sans doute oublié le terrible coup de vent de nord-est qui se déchaîna au milieu de l’équinoxe de cette année, et pendant lequel le baromètre tomba à sept cent dix millimètres. Ce fut un ouragan, sans intermittence, qui dura du 18 au 26 mars. Les ravages qu’il produisit furent immenses en Amér... |
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #Lasso | Lasso | define wordwrap(
text::string,
row_length::integer = 75
) => {
return regexp(`(?is)(.{1,` + #row_length + `})(?:$|\W)+`, '$1<br />\n', #text, true) -> replaceall
}
local(text = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris consequat ornare lectus, dignissim iaculis libero consequat sed.... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #TUSCRIPT | TUSCRIPT |
$$ MODE TUSCRIPT
STRUCTURE xmloutput
DATA '<CharacterRemarks>'
DATA * ' <Character name="' names +'">' remarks +'</Character>'
DATA = '</CharacterRemarks>'
ENDSTRUCTURE
BUILD X_TABLE entitysubst=" >> > << < & & "
ERROR/STOP CREATE ("dest",seq-o,-std-)
ACCESS d: WRITE/ERASE/STRUCTURE "dest" num,str
str="xm... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #VBScript | VBScript |
Set objXMLDoc = CreateObject("msxml2.domdocument")
Set objRoot = objXMLDoc.createElement("CharacterRemarks")
objXMLDoc.appendChild objRoot
Call CreateNode("April","Bubbly: I'm > Tam and <= Emily")
Call CreateNode("Tam O'Shanter","Burns: ""When chapman billies leave the street ...""")
Call CreateNode("Emily","Shor... |
http://rosettacode.org/wiki/XML/Input | XML/Input | Given the following XML fragment, extract the list of student names using whatever means desired. If the only viable method is to use XPath, refer the reader to the task XML and XPath.
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" /... | #PowerShell | PowerShell |
[xml]$xml = @'
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" />
<Student Name="Chad" Gender="M" DateOfBirth="1991-05-06" />
<Student Name="Dave" Gender="M" DateOfBirth="1992-07-08">
<Pet Type="dog" Name="Rover" />
</Stu... |
http://rosettacode.org/wiki/XML/Input | XML/Input | Given the following XML fragment, extract the list of student names using whatever means desired. If the only viable method is to use XPath, refer the reader to the task XML and XPath.
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" /... | #PureBasic | PureBasic | Define studentNames.String, src$
src$ = "<Students>"
src$ + "<Student Name='April' Gender='F' DateOfBirth='1989-01-02' />"
src$ + "<Student Name='Bob' Gender='M' DateOfBirth='1990-03-04' />"
src$ + "<Student Name='Chad' Gender='M' DateOfBirth='1991-05-06' />"
src$ + "<Student Name='Dave' Gender='M' DateOfBirth='19... |
http://rosettacode.org/wiki/Arrays | Arrays | This task is about arrays.
For hashes or associative arrays, please see Creating an Associative Array.
For a definition and in-depth discussion of what an array is, see Array.
Task
Show basic array syntax in your language.
Basically, create an array, assign a value to it, and retrieve an element (if available,... | #zonnon | zonnon |
var
a: array 10 of integer;
da: array * of cardinal;
|
http://rosettacode.org/wiki/100_doors | 100 doors | There are 100 doors in a row that are all initially closed.
You make 100 passes by the doors.
The first time through, visit every door and toggle the door (if the door is closed, open it; if it is open, close it).
The second time, only visit every 2nd door (door #2, #4, #6, ...), and toggle it.
The third... | #Oz | Oz | declare
NumDoors = 100
NumPasses = 100
fun {NewDoor} closed end
fun {Toggle Door}
case Door of closed then open
[] open then closed
end
end
fun {Pass Doors I}
{List.mapInd Doors
fun {$ Index Door}
if Index mod I == 0 then {Toggle Door}
else Door
end... |
http://rosettacode.org/wiki/Weird_numbers | Weird numbers | In number theory, a weird number is a natural number that is abundant but not semiperfect (and therefore not perfect either).
In other words, the sum of the proper divisors of the number (divisors including 1 but not itself) is greater than the number itself (the number is abundant), but no subset of those divisors su... | #Ruby | Ruby | def divisors(n)
divs = [1]
divs2 = []
i = 2
while i * i <= n
if n % i == 0 then
j = (n / i).to_i
divs.append(i)
if i != j then
divs2.append(j)
end
end
i = i + 1
end
divs2 += divs.reverse
return divs... |
http://rosettacode.org/wiki/Write_language_name_in_3D_ASCII | Write language name in 3D ASCII | Task
Write/display a language's name in 3D ASCII.
(We can leave the definition of "3D ASCII" fuzzy,
so long as the result is interesting or amusing,
not a cheap hack to satisfy the task.)
Related tasks
draw a sphere
draw a cuboid
draw a rotating cube
draw a Deathstar
| #Seed7 | Seed7 | $include "seed7_05.s7i";
const array string: name is [] (
" *** * ***** ",
"* * * ",
"* *** *** **** * ",
"* * * * * * * * ",
" *** * * * * * * * ",
" * ***** ***** * * * ",
" * * * * * *... |
http://rosettacode.org/wiki/Write_language_name_in_3D_ASCII | Write language name in 3D ASCII | Task
Write/display a language's name in 3D ASCII.
(We can leave the definition of "3D ASCII" fuzzy,
so long as the result is interesting or amusing,
not a cheap hack to satisfy the task.)
Related tasks
draw a sphere
draw a cuboid
draw a rotating cube
draw a Deathstar
| #Sidef | Sidef | var text = <<'EOT';
***
* * * **
* * *
* * * *** **
*** * **** * * *
* * * * ***** *
* * * * * *
* * * * * *
*** * **** *** *
EOT
func banner3D(text, shift=-1) {
var txt = text.lines.map{|line| line... |
http://rosettacode.org/wiki/Web_scraping | Web scraping | Task
Create a program that downloads the time from this URL: http://tycho.usno.navy.mil/cgi-bin/timer.pl and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.
If possible,... | #Icon_and_Unicon | Icon and Unicon | procedure main()
m := open(url := "http://tycho.usno.navy.mil/cgi-bin/timer.pl","m") | stop("Unable to open ",url)
every (p := "") ||:= |read(m) # read the page into a single string
close(m)
map(p) ? ( tab(find("<br>")), ="<br>", write("UTC time=",p[&pos:find(" utc"... |
http://rosettacode.org/wiki/Web_scraping | Web scraping | Task
Create a program that downloads the time from this URL: http://tycho.usno.navy.mil/cgi-bin/timer.pl and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.
If possible,... | #J | J | require 'web/gethttp'
_8{. ' UTC' taketo gethttp 'http://tycho.usno.navy.mil/cgi-bin/timer.pl'
04:32:44 |
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #Haskell | Haskell | module Main where
import Control.Category -- (>>>)
import Data.Char -- toLower, isSpace
import Data.List -- sortBy, (Foldable(foldl')), filter -- '
import Data.Ord -- Down
import System.IO -- stdin, ReadMode, openFile, hClose
import System.Environment -- getArgs
-- containers
... |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #Lua | Lua |
local map = {{'t', 'H', '.', '.', '.', '.', '.', '.', '.', '.', '.'},
{'.', ' ', ' ', ' ', '.'},
{' ', ' ', ' ', '.', '.', '.'},
{'.', ' ', ' ', ' ', '.'},
{'H', 't', '.', '.', ' ', '.', '.', '.', '.', '.', '.'}}
function step(map)
local next = {}
for i = ... |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #Oz | Oz | functor
import
Application
QTk at 'x-oz://system/wp/QTk.ozf'
define
proc {OnClose}
{Application.exit 0}
end
%% Descripe the GUI in a declarative style.
GUIDescription = td(label(text:"Hello World!")
action:OnClose %% Exit app when window closes.
)
%% Create a window objec... |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #Pascal | Pascal | Program WindowCreation_SDL;
{$linklib SDL}
uses
SDL,
SysUtils;
var
screen: PSDL_Surface;
begin
SDL_Init(SDL_INIT_VIDEO);
screen := SDL_SetVideoMode( 800, 600, 16, (SDL_SWSURFACE or SDL_HWPALETTE) );
sleep(2000);
SDL_Quit;
end. |
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #LFE | LFE |
(defun wrap-text (text)
(wrap-text text 78))
(defun wrap-text (text max-len)
(string:join
(make-wrapped-lines
(string:tokens text " ") max-len)
"\n"))
(defun make-wrapped-lines
(((cons word rest) max-len)
(let ((`#(,_ ,_ ,last-line ,lines) (assemble-lines max-len word rest)))
(lists:... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #Vedit_macro_language | Vedit macro language | // Replace special characters with entities:
Replace("&", "&", BEGIN+ALL+NOERR) // this must be the first replace!
Replace("<", "<", BEGIN+ALL+NOERR)
Replace(">", ">", BEGIN+ALL+NOERR)
Replace("'", "'", BEGIN+ALL+NOERR)
Replace('"', """, BEGIN+ALL+NOERR)
// Insert XML marking
BOF
IT("<Cha... |
http://rosettacode.org/wiki/XML/Input | XML/Input | Given the following XML fragment, extract the list of student names using whatever means desired. If the only viable method is to use XPath, refer the reader to the task XML and XPath.
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" /... | #Python | Python | import xml.dom.minidom
doc = """<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" />
<Student Name="Chad" Gender="M" DateOfBirth="1991-05-06" />
<Student Name="Dave" Gender="M" DateOfBirth="1992-07-08">
<Pet Type="dog" Name="... |
http://rosettacode.org/wiki/Arrays | Arrays | This task is about arrays.
For hashes or associative arrays, please see Creating an Associative Array.
For a definition and in-depth discussion of what an array is, see Array.
Task
Show basic array syntax in your language.
Basically, create an array, assign a value to it, and retrieve an element (if available,... | #ZX_Spectrum_Basic | ZX Spectrum Basic | 10 DIM a(5)
20 LET a(2)=128
30 PRINT a(2) |
http://rosettacode.org/wiki/100_doors | 100 doors | There are 100 doors in a row that are all initially closed.
You make 100 passes by the doors.
The first time through, visit every door and toggle the door (if the door is closed, open it; if it is open, close it).
The second time, only visit every 2nd door (door #2, #4, #6, ...), and toggle it.
The third... | #PARI.2FGP | PARI/GP |
v=vector(d=100);/*set 100 closed doors*/
for(i=1,d,forstep(j=i,d,i,v[j]=1-v[j]));
for(i=1,d,if(v[i],print("Door ",i," is open.")))
|
http://rosettacode.org/wiki/Weird_numbers | Weird numbers | In number theory, a weird number is a natural number that is abundant but not semiperfect (and therefore not perfect either).
In other words, the sum of the proper divisors of the number (divisors including 1 but not itself) is greater than the number itself (the number is abundant), but no subset of those divisors su... | #Sidef | Sidef | func is_pseudoperfect(n, d = n.divisors.slice(0, -2), s = d.sum, m = d.end) {
return false if (m < 0)
while (d[m] > n) {
s -= d[m--]
}
return true if (n == s)
return true if (d[m] == n)
__FUNC__(n-d[m], d, s-d[m], m-1) || __FUNC__(n, d, s-d[m], m-1)
}
func is_weird(n) {
(n.... |
http://rosettacode.org/wiki/Write_language_name_in_3D_ASCII | Write language name in 3D ASCII | Task
Write/display a language's name in 3D ASCII.
(We can leave the definition of "3D ASCII" fuzzy,
so long as the result is interesting or amusing,
not a cheap hack to satisfy the task.)
Related tasks
draw a sphere
draw a cuboid
draw a rotating cube
draw a Deathstar
| #SQL | SQL | SELECT ' SSS\ ' AS s, ' QQQ\ ' AS q, 'L\ ' AS l FROM dual
UNION ALL SELECT 'S \|', 'Q Q\ ', 'L | ' FROM dual
UNION ALL SELECT '\SSS ', 'Q Q |', 'L | ' FROM dual
UNION ALL SELECT ' \ S\', 'Q Q Q |', 'L | ' from dual
union all select ' SSS |', ... |
http://rosettacode.org/wiki/Web_scraping | Web scraping | Task
Create a program that downloads the time from this URL: http://tycho.usno.navy.mil/cgi-bin/timer.pl and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.
If possible,... | #Java | Java | import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
public class WebTime{
public static void main(String[] args){
try{
URL address = new URL(
"http://tycho.usno.navy.mil/cgi-bin/timer.pl");
URLCo... |
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #J | J | 10{.\:~(#;{.)/.~;:tolower((e.&(a.-.Alpha_j_,' '))`(,:&' '))}1!:1<jpath'~/downloads/books/LesMis.txt'
┌─────┬────┐
│41093│the │
├─────┼────┤
│19954│of │
├─────┼────┤
│14943│and │
├─────┼────┤
│14558│a │
├─────┼────┤
│13953│to │
├─────┼────┤
│11219│in │
├─────┼────┤
│9649 │he │
├─────┼────┤
│8622 │was │
├─────┼─... |
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #Java | Java | import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
public class WordCount {
public ... |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #Mathematica.2FWolfram_Language | Mathematica/Wolfram Language | DynamicModule[{data =
ArrayPad[PadRight[Characters /@ StringSplit["tH.........
. .
...
. .
Ht.. ......", "\n"]] /. {" " -> 0, "t" -> 2, "H" -> 1,
"." -> 3}, 1]},
Dynamic@ArrayPlot[
data = CellularAutomaton[{{{_, _, _}, {_, 0, _}, {_, _, _}} ->
0, {{_, _, _}... |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #Perl | Perl | use Tk;
MainWindow->new();
MainLoop; |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #Phix | Phix | -- demo\rosetta\Window_creation.exw
with javascript_semantics
include pGUI.e
IupOpen()
IupShow(IupDialog(IupVbox({IupLabel("hello")},"MARGIN=200x200"),"TITLE=Hello"))
if platform()!=JS then
IupMainLoop()
IupClose()
end if
|
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #Lingo | Lingo | -- in some movie script
----------------------------------------
-- Wraps specified text into lines of specified width (in px), returns lines as list of strings
-- @param {string} str
-- @param {integer} pixelWidth
-- @param {propList} [style]
-- @return {list}
----------------------------------------
on hardWrapText... |
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #Lua | Lua | function splittokens(s)
local res = {}
for w in s:gmatch("%S+") do
res[#res+1] = w
end
return res
end
function textwrap(text, linewidth)
if not linewidth then
linewidth = 75
end
local spaceleft = linewidth
local res = {}
local line = {}
for _, word in ipairs... |
http://rosettacode.org/wiki/XML/Output | XML/Output | Create a function that takes a list of character names and a list of corresponding remarks and returns an XML document of <Character> elements each with a name attributes and each enclosing its remarks.
All <Character> elements are to be enclosed in turn, in an outer <CharacterRemarks> element.
As an example, calling ... | #Visual_Basic_.NET | Visual Basic .NET | Module XMLOutput
Sub Main()
Dim charRemarks As New Dictionary(Of String, String)
charRemarks.Add("April", "Bubbly: I'm > Tam and <= Emily")
charRemarks.Add("Tam O'Shanter", "Burns: ""When chapman billies leave the street ...""")
charRemarks.Add("Emily", "Short & shrift")
Di... |
http://rosettacode.org/wiki/XML/Input | XML/Input | Given the following XML fragment, extract the list of student names using whatever means desired. If the only viable method is to use XPath, refer the reader to the task XML and XPath.
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" /... | #R | R | library(XML)
#Read in XML string
str <- readLines(tc <- textConnection('<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" />
<Student Name="Chad" Gender="M" DateOfBirth="1991-05-06" />
<Student Name="Dave" Gender="M" DateOfBirth="1... |
http://rosettacode.org/wiki/XML/Input | XML/Input | Given the following XML fragment, extract the list of student names using whatever means desired. If the only viable method is to use XPath, refer the reader to the task XML and XPath.
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" /... | #Racket | Racket |
#lang racket
(require xml xml/path)
(define input
#<<END
<Students>
<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />
<Student Name="Bob" Gender="M" DateOfBirth="1990-03-04" />
<Student Name="Chad" Gender="M" DateOfBirth="1991-05-06" />
<Student Name="Dave" Gender="M" DateOfBirth="1992-07-08">... |
http://rosettacode.org/wiki/100_doors | 100 doors | There are 100 doors in a row that are all initially closed.
You make 100 passes by the doors.
The first time through, visit every door and toggle the door (if the door is closed, open it; if it is open, close it).
The second time, only visit every 2nd door (door #2, #4, #6, ...), and toggle it.
The third... | #Pascal | Pascal | Program OneHundredDoors;
var
doors : Array[1..100] of Boolean;
i, j : Integer;
begin
for i := 1 to 100 do
doors[i] := False;
for i := 1 to 100 do begin
j := i;
while j <= 100 do begin
doors[j] := not doors[j];
j := j + i
end
end;
for i := 1 to 100 do begin
Write(... |
http://rosettacode.org/wiki/Weird_numbers | Weird numbers | In number theory, a weird number is a natural number that is abundant but not semiperfect (and therefore not perfect either).
In other words, the sum of the proper divisors of the number (divisors including 1 but not itself) is greater than the number itself (the number is abundant), but no subset of those divisors su... | #Visual_Basic_.NET | Visual Basic .NET | Module Module1
Dim resu As New List(Of Integer)
Function TestAbundant(n As Integer, ByRef divs As List(Of Integer)) As Boolean
divs = New List(Of Integer)
Dim sum As Integer = -n : For i As Integer = Math.Sqrt(n) To 1 Step -1
If n Mod i = 0 Then divs.Add(i) : Dim j As Integer = n... |
http://rosettacode.org/wiki/Write_language_name_in_3D_ASCII | Write language name in 3D ASCII | Task
Write/display a language's name in 3D ASCII.
(We can leave the definition of "3D ASCII" fuzzy,
so long as the result is interesting or amusing,
not a cheap hack to satisfy the task.)
Related tasks
draw a sphere
draw a cuboid
draw a rotating cube
draw a Deathstar
| #Tcl | Tcl | package require Tcl 8.5
proc mergeLine {upper lower} {
foreach u [split $upper ""] l [split $lower ""] {
lappend result [expr {$l in {" " ""} ? $u : $l}]
}
return [join $result ""]
}
proc printLines lines {
set n [llength $lines]
foreach line $lines {
set indent [string repeat " " $n]
lappend u... |
http://rosettacode.org/wiki/Web_scraping | Web scraping | Task
Create a program that downloads the time from this URL: http://tycho.usno.navy.mil/cgi-bin/timer.pl and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.
If possible,... | #JavaScript | JavaScript | var req = new XMLHttpRequest();
req.onload = function () {
var re = /[JFMASOND].+ UTC/; //beginning of month name to 'UTC'
console.log(this.responseText.match(re)[0]);
};
req.open('GET', 'http://tycho.usno.navy.mil/cgi-bin/timer.pl', true);
req.send(); |
http://rosettacode.org/wiki/Web_scraping | Web scraping | Task
Create a program that downloads the time from this URL: http://tycho.usno.navy.mil/cgi-bin/timer.pl and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.
If possible,... | #jq | jq | #!/bin/bash
curl -Ss 'http://tycho.usno.navy.mil/cgi-bin/timer.pl' |\
jq -R -r 'if index(" UTC") then .[4:] else empty end' |
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #jq | jq |
< 135-0.txt jq -nR --argjson n 10 '
def bow(stream):
reduce stream as $word ({}; .[($word|tostring)] += 1);
bow(inputs | gsub("[^-a-zA-Z]"; " ") | splits(" *") | ascii_downcase | select(test("^[a-z][-a-z]*$")))
| to_entries
| sort_by(.value)
| .[- $n :]
| reverse
| from_entries
'
|
http://rosettacode.org/wiki/Word_frequency | Word frequency | Task
Given a text file and an integer n, print/display the n most
common words in the file (and the number of their occurrences) in decreasing frequency.
For the purposes of this task:
A word is a sequence of one or more contiguous letters.
You are free to define what a letter is.
Undersc... | #Julia | Julia |
using FreqTables
txt = read("les-mis.txt", String)
words = split(replace(txt, r"\P{L}"i => " "))
table = sort(freqtable(words); rev=true)
println(table[1:10]) |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #Nim | Nim | import strutils, os
var world, world2 = """
+-----------+
|tH.........|
|. . |
| ... |
|. . |
|Ht.. ......|
+-----------+"""
let h = world.splitLines.len
let w = world.splitLines[0].len
template isH(x, y): int = int(s[i + w * y + x] == 'H')
proc next(o: var string, s: string, w: int) =
for... |
http://rosettacode.org/wiki/Wireworld | Wireworld | Wireworld
Conway's Game of Life
It is capable of doing sophisticated computations with appropriate programs
(it is actually Turing complete),
and is much simpler to program for.
A Wireworld arena consists of a Cartesian grid of cells,
each of which can be in one of four states.
All cell transitions happen simultaneous... | #OCaml | OCaml | let w = [|
" ......tH ";
" . ...... ";
" ...Ht... . ";
" .... ";
" . ..... ";
" .... ";
" tH...... . ";
" . ...... ";
" ...Ht... ";
|]
let is_head w ... |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #PicoLisp | PicoLisp | (load "@lib/openGl.l")
(glutInit)
(glutCreateWindow "Goodbye, World!")
(keyboardFunc '(() (bye)))
(glutMainLoop) |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #PowerShell | PowerShell | New-Window -Show |
http://rosettacode.org/wiki/Window_creation | Window creation | Display a GUI window. The window need not have any contents, but should respond to requests to be closed.
| #Processing | Processing |
size(1000,1000);
|
http://rosettacode.org/wiki/Word_wrap | Word wrap | Even today, with proportional fonts and complex layouts, there are still cases where you need to wrap text at a specified column.
Basic task
The basic task is to wrap a paragraph of text in a simple way in your language.
If there is a way to do this that is built-in, trivial, or provided in a standard library, sho... | #M2000_Interpreter | M2000 Interpreter |
Module Checkit {
\\ leading space from begin of paragraph stay as is
a$={ In olden times when wishing still helped one, there
lived a king whose daughters were all beautiful, but the youngest
was so beautiful that the sun itself, which has seen so
much, was astonished whenever it sho... |
Subsets and Splits
Rosetta Code COBOL Python Hard Tasks
Identifies and retrieves challenging tasks that exist in both COBOL and Python, revealing cross-language programming patterns and difficulty levels for comparative analysis.
Rosetta Code Task Comparisons
Identifies tasks common to both COBOL and Python languages that are described as having difficulty levels, revealing cross-language task similarities and providing useful comparative programming examples.
Select Specific Languages Codes
Retrieves specific programming language names and codes from training data, providing basic filtering but limited analytical value beyond identifying these particular languages.