Intersecting number wheels: Difference between revisions
→{{header|jq}}: tidy
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Line 65:
{{trans|Python}}
<
L
V nxt = w[name][0]
Line 73:
name = nxt
L(group)
A: 1 B 2; B: 3 4
A: 1
A: 1
print("Intersecting Number Wheel group:\n "group)
[String = [String]] wheel
Line 87 ⟶ 86:
first = I first == ‘’ {name[0 .< (len)-1]} E first
V gen = (0.<20).map(i -> nextfrom(&@wheel, @first)).join(‘ ’)
print(" Generates:\n "gen" ...\n")</
{{out}}
Line 113 ⟶ 112:
=={{header|ALGOL 68}}==
<
# a number wheel element #
MODE NWELEMENT = UNION( CHAR # wheel name #, INT # wheel value # );
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, NW( "B", LOC INT := 1, ( 3, 4 ) )
, NW( "C", LOC INT := 1, ( 5, "B" ) ) ) )
END</
{{out}}
<pre>
Line 192 ⟶ 191:
</pre>
=={{header|AutoHotkey}}==
<syntaxhighlight lang="autohotkey">obj1 := {"A":[1, 2, 3]}
obj2 := {"A":[1, "B", 2] , "B":[3, 4]}
obj3 := {"A":[1, "D", "D"] , "D":[6, 7, 8]}
obj4 := {"A":[1, "B", "C"] , "B":[3, 4] , "C":[5, "B"]}
loop 4
{
str := ""
for k, v in obj%A_Index% {
str .= "{" k " : "
for i, t in v
str .= t ","
str := Trim(str, ",") "}, "
}
str := Trim(str, ", ")
x := INW(obj%A_Index%)
result .= str "`n" x.1 "`n" x.2 "`n------`n"
}
MsgBox % result
return
INW(obj, num:=20){
sets := [], ptr := []
for k, v in obj {
if A_Index=1
s := k, s1 := k
%k% := v, sets.Push(k), ptr[k] := 0
}
loop % num {
ptr[s]++
while !((v := %s%[ptr[s]]) ~= "\d") {
s := %s%[ptr[s]]
ptr[s]++
}
key .= s "." ptr[s] ", "
result .= %s%[ptr[s]] " "
s := s1
for i, set in sets
ptr[set] := ptr[set] = %set%.count() ? 0 : ptr[set]
}
return [key, result]
}</syntaxhighlight>
{{out}}
<pre>{A : 1,2,3}
A.1, A.2, A.3, A.1, A.2, A.3, A.1, A.2, A.3, A.1, A.2, A.3, A.1, A.2, A.3, A.1, A.2, A.3, A.1, A.2,
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2
------
{A : 1,B,2}, {B : 3,4}
A.1, B.1, A.3, A.1, B.2, A.3, A.1, B.1, A.3, A.1, B.2, A.3, A.1, B.1, A.3, A.1, B.2, A.3, A.1, B.1,
1 3 2 1 4 2 1 3 2 1 4 2 1 3 2 1 4 2 1 3
------
{A : 1,D,D}, {D : 6,7,8}
A.1, D.1, D.2, A.1, D.3, D.1, A.1, D.2, D.3, A.1, D.1, D.2, A.1, D.3, D.1, A.1, D.2, D.3, A.1, D.1,
1 6 7 1 8 6 1 7 8 1 6 7 1 8 6 1 7 8 1 6
------
{A : 1,B,C}, {B : 3,4}, {C : 5,B}
A.1, B.1, C.1, A.1, B.2, B.1, A.1, B.2, C.1, A.1, B.1, B.2, A.1, B.1, C.1, A.1, B.2, B.1, A.1, B.2,
1 3 5 1 4 3 1 4 5 1 3 4 1 3 5 1 4 3 1 4
------</pre>
=={{header|C}}==
<
#include <stdlib.h>
#include <string.h>
Line 334 ⟶ 394:
return 0;
}</
{{out}}
<pre> 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2
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=={{header|C sharp}}==
<
using System.Collections.Generic;
using System.Linq;
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static void Print(this IEnumerable<char> sequence) => Console.WriteLine(string.Join(" ", sequence));
}</
{{out}}
<pre>
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=={{header|C++}}==
{{trans|D}}
<
#include <iostream>
#include <map>
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return 0;
}</
{{out}}
<pre> 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2
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=={{header|D}}==
<
import std.range;
import std.stdio;
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group3();
group4();
}</
{{out}}
<pre>["1", "2", "3", "1", "2", "3", "1", "2", "3", "1", "2", "3", "1", "2", "3", "1", "2", "3", "1", "2"]
Line 634 ⟶ 694:
=={{header|F_Sharp|F#}}==
<
// Wheels within wheels. Nigel Galloway: September 30th., 2019.
let N(n)=fun()->n
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for n in 0..20 do printf "%d " (A4())
printfn ""
</syntaxhighlight>
{{out}}
<pre>
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— a dictionary-like structure that is transformed into a lazy list which yields the expected sequence elements.
{{works with|Factor|0.99 2019-07-10}}
<
math.parser multiline peg.ebnf prettyprint prettyprint.custom
sequences strings ;
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: .take ( n group -- )
list>> ltake list>array [ pprint bl ] each "..." print ;</
Now the interface defined above may be used:
<
rosetta-code.number-wheels ;
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"Intersecting number wheel group:" print
[ . ] [ "Generates:" print 20 swap .take nl ] bi
] 4 napply</
{{out}}
<pre>
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=={{header|Go}}==
<
import (
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generate(wheels, "A", 20)
}
}</
{{out}}
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terminating at the first digit found, and printing a map-accumulation of that recursion over a list of given length but arbitrary content.
<syntaxhighlight lang
import Data.List (mapAccumL)
import qualified Data.
import Data.
---------------- INTERSECTING NUMBER WHEELS --------------
clockWorkTick ::
M.Map Char String ->
(M.Map Char String, Char)
clockWorkTick = flip click 'A'
where
click wheels name
|
(
$ fromMaybe ['?'] $ M.lookup name wheels
leftRotate :: [a] -> [a]
leftRotate = take . length <*> (tail . cycle)
--------------------------- TEST -------------------------
main :: IO ()
main = do
let wheelSets =
[ [('A', "123")],
]
putStrLn "State of each wheel-set after 20 clicks:\n"
mapM_ print $
fmap
( flip
(mapAccumL (const . clockWorkTick))
(replicate 20 undefined)
. M.fromList
)
wheelSets
putStrLn "\nInitial state of the wheel-sets:\n"
mapM_ print wheelSets</
{{Out}}
<pre>State of each wheel-set after 20 clicks:
Line 947 ⟶ 1,013:
[('A',"1DD"),('D',"678")]
[('A',"1BC"),('B',"34"),('C',"5B")]</pre>
=={{header|J}}==
Implementation:
<syntaxhighlight lang="j">
wheelgroup=:{{
yield_wheelgroup_=: {{
i=. wheels i.<;y
j=. i{inds
k=. ".;y
l=. j{k
inds=: ((#k)|1+j) i} inds
if. l e. wheels
do.yield l
else.{.".;l
end.
}}
gen_wheelgroup_=: {{
yield wheel
}}
grp=. cocreate ''
coinsert__grp 'wheelgroup'
specs__grp=: cut each boxopen m
wheel__grp=: ;{.wheels__grp=: {.every specs__grp
init__grp=: {{('inds';wheels)=:(0#~#specs);}.each specs}}
init__grp''
('gen_',(;grp),'_')~
}}
</syntaxhighlight>
Task examples:
<syntaxhighlight lang="j">
task=: {{y wheelgroup^:(1+i.20)_}}
task 'A 1 2 3'
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2
task 'A 1 B 2';'B 3 4'
1 3 2 1 4 2 1 3 2 1 4 2 1 3 2 1 4 2 1 3
task 'A 1 D D';'D 6 7 8'
1 6 7 1 8 6 1 7 8 1 6 7 1 8 6 1 7 8 1 6
task 'A 1 B C';'B 3 4';'C 5 B'
1 3 5 1 4 3 1 4 5 1 3 4 1 3 5 1 4 3 1 4
</syntaxhighlight>
=={{header|Java}}==
<syntaxhighlight lang="java">
package intersectingNumberWheels;
import java.util.ArrayList;
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}
}
</syntaxhighlight>
Output:
{A=[1, 2, 3]}
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{{Trans|Haskell}}
{{Trans|Python}}
<
'use strict';
Line 1,211 ⟶ 1,319:
// MAIN ---
return main();
})();</
{{Out}}
<pre>Series and state of each wheel-set after 20 clicks:
Line 1,226 ⟶ 1,334:
{"A":"1DD"},{"D":"678"}
{"A":"1BC"},{"B":"34"},{"C":"5B"}</pre>
=={{header|jq}}==
{{works with|jq}}
'''Also works with gojq, the Go implementation of jq'''
In this entry, a single wheel is simply represented by
a JSON object of the form { name: array }
where `name` is its name, and `array` is an array of the values on the wheel in the order
in which they would be read.
A set of of number of wheels can thus be represented simply as the sum of the objects corresponding to each wheel.
Thus the collection of illustrative number wheel groups can be defined as follows:
<syntaxhighlight lang="jq">
def wheels: [
{
"A": [1, 2, 3]
},
{
"A": [1, "B", 2],
"B": [3, 4]
},
{
"A": [1, "D", "D"],
"D": [6, 7, 8]
},
{
"A": [1, "B", "C"],
"B": [3, 4],
"C": [5, "B"]
}
];
</syntaxhighlight>
<syntaxhighlight lang="jq">
# read($wheel)
# where $wheel is the wheel to be read (a string)
# Input: a set of wheels
# Output: an object such that .value is the next value,
# and .state is the updated state of the set of wheels
def read($wheel):
# Input: an array
# Output: the rotated array
def rotate: .[1:] + [.[0]];
.[$wheel][0] as $value
| (.[$wheel] |= rotate) as $state
| if ($value | type) == "number"
then {$value, $state}
else $state | read($value)
end;
# Read wheel $wheel $n times
def multiread($wheel; $n):
if $n <= 0 then empty
else read($wheel)
| .value, (.state | multiread($wheel; $n - 1))
end;
def printWheels:
keys[] as $k
| "\($k): \(.[$k])";
# Spin each group $n times
def spin($n):
wheels[]
| "The number wheel group:",
printWheels,
"generates",
([ multiread("A"; $n) ] | join(" ") + " ..."),
"";
spin(20)
</syntaxhighlight>
'''Invocation'''
<pre>
jq -nr -f intersecting-number-wheels.jq
</pre>
{{output}}
<pre>
The number wheel group:
A: [1,2,3]
generates
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 ...
The number wheel group:
A: [1,"B",2]
B: [3,4]
generates
1 3 2 1 4 2 1 3 2 1 4 2 1 3 2 1 4 2 1 3 ...
The number wheel group:
A: [1,"D","D"]
D: [6,7,8]
generates
1 6 7 1 8 6 1 7 8 1 6 7 1 8 6 1 7 8 1 6 ...
The number wheel group:
A: [1,"B","C"]
B: [3,4]
C: [5,"B"]
generates
1 3 5 1 4 3 1 4 5 1 3 4 1 3 5 1 4 3 1 4 ...
</pre>
=={{header|Julia}}==
<
const d2 = Dict("A" => [["1", "B", "2"], 1], "B" => [["3", "4"], 1])
const d3 = Dict("A" => [["1", "D", "D"], 1], "D" => [["6", "7", "8"], 1])
Line 1,258 ⟶ 1,471:
foreach(testwheels, [d1, d2, d3, d4])
</
<pre>
Number Wheels:
Line 1,283 ⟶ 1,496:
=={{header|Kotlin}}==
{{trans|Java}}
<
import java.util.stream.IntStream
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endPosition = list.size - 1
}
}</
{{out}}
<pre>{A=[1, 2, 3]}
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=={{header|Maple}}==
<syntaxhighlight lang="maple">
with(ArrayTools):
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seq(currentValue(A), 1..20);
</syntaxhighlight>
{{out}}<pre>
Line 1,437 ⟶ 1,650:
=={{header|Nim}}==
<
type
Line 1,501 ⟶ 1,714:
{'A': "1 B 2", 'B': "3 4"}.generate(20)
{'A': "1 D D", 'D': "6 7 8"}.generate(20)
{'A': "1 B C", 'B': "3 4", 'C': "5 B"}.generate(20)</
{{out}}
Line 1,526 ⟶ 1,739:
=={{header|Perl}}==
{{trans|Julia}}
<
use warnings;
use feature 'say';
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{'A' => [['1', 'D', 'D'], 0], 'D' => [['6', '7', '8'], 0]},
{'A' => [['1', 'B', 'C'], 0], 'B' => [['3', '4'], 0], 'C' => [['5', 'B'], 0]},
);</
{{out}}
<pre>A: 1, 2, 3
Line 1,569 ⟶ 1,782:
=={{header|Phix}}==
<!--<syntaxhighlight lang="phix">(phixonline)-->
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">terms</span><span style="color: #0000FF;">(</span><span style="color: #004080;">sequence</span> <span style="color: #000000;">wheels</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">integer</span> <span style="color: #000000;">n</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">res</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #008000;">' '</span><span style="color: #0000FF;">,</span><span style="color: #000000;">n</span><span style="color: #0000FF;">),</span>
<span style="color: #000000;">pos</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">wheels</span><span style="color: #0000FF;">)),</span>
<span style="color: #000000;">wvs</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">vslice</span><span style="color: #0000FF;">(</span><span style="color: #000000;">wheels</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">wheel</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">rdx</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">while</span> <span style="color: #000000;">rdx</span><span style="color: #0000FF;"><=</span><span style="color: #000000;">n</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">p</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">pos</span><span style="color: #0000FF;">[</span><span style="color: #000000;">wheel</span><span style="color: #0000FF;">],</span>
<span style="color: #000000;">c</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">wheels</span><span style="color: #0000FF;">[</span><span style="color: #000000;">wheel</span><span style="color: #0000FF;">][</span><span style="color: #000000;">p</span><span style="color: #0000FF;">]</span>
<span style="color: #000000;">p</span> <span style="color: #0000FF;">=</span> <span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #000000;">p</span><span style="color: #0000FF;">=</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">wheels</span><span style="color: #0000FF;">[</span><span style="color: #000000;">wheel</span><span style="color: #0000FF;">])?</span><span style="color: #000000;">2</span><span style="color: #0000FF;">:</span><span style="color: #000000;">p</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">pos</span><span style="color: #0000FF;">[</span><span style="color: #000000;">wheel</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">p</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">></span><span style="color: #008000;">'9'</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">wheel</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">c</span><span style="color: #0000FF;">,</span><span style="color: #000000;">wvs</span><span style="color: #0000FF;">)</span>
<span
<span style="color: #000000;">res</span><span style="color: #0000FF;">[</span><span style="color: #000000;">rdx</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">c</span>
<span style="color: #000000;">rdx</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #000000;">wheel</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">res</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">wheels</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{{</span><span style="color: #008000;">"A123"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"A1B2"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"B34"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"A1DD"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"D678"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"A1BC"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"B34"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"C5B"</span><span style="color: #0000FF;">}}</span>
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">wheels</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
<span style="color: #0000FF;">?</span><span style="color: #000000;">terms</span><span style="color: #0000FF;">(</span><span style="color: #000000;">wheels</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">],</span><span style="color: #000000;">20</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
<!--</syntaxhighlight>-->
{{out}}
<pre>
Line 1,608 ⟶ 1,824:
=={{header|Python}}==
===Python: Original class and generator based===
<
class INW():
Line 1,661 ⟶ 1,877:
]:
w = INW(**group)
print(f"{w}\n Generates:\n {first(w, 20)} ...\n")</
{{out}}
Line 1,689 ⟶ 1,905:
===Python: Simplified procedural===
<
while True:
nxt, w[name] = w[name][0], w[name][1:] + w[name][:1]
Line 1,709 ⟶ 1,925:
first = name[:-1] if first is None else first
gen = ' '.join(nextfrom(wheel, first) for i in range(20))
print(f" Generates:\n {gen} ...\n")</
{{out}}
Line 1,737 ⟶ 1,953:
Input is just a list of Python dicts, and depends on c-python dicts being odered by key insertion order.
<
nxt, w[name] = w[name][0], w[name][1:] + w[name][:1]
return nxt if '0' <= nxt[0] <= '9' else nextfromr(w, nxt)
Line 1,749 ⟶ 1,965:
first = next(group.__iter__())
gen = ' '.join(nextfromr(group, first) for i in range(20))
print(f" Generates:\n {gen} ...\n")</
{{out}}
Line 1,778 ⟶ 1,994:
{{Trans|Haskell}}
{{Works with|Python|3.7}}
<
from itertools import cycle, islice
from functools import reduce
Line 1,796 ⟶ 2,012:
insertDict(wheelName)(leftRotate(wheel))(wheels)
)(v)
return
return click(wheelMap)('A')
Line 1,808 ⟶ 2,024:
#
# main :: IO ()
def main():
Line 1,832 ⟶ 2,048:
#
# Tuple (,) :: a -> b -> (a, b)
Line 1,860 ⟶ 2,076:
# insertDict :: String -> a -> Dict -> Dict
def insertDict(k):
'''A new dictionary updated with a (k, v) pair.'''
def go(v, dct):
return lambda v: lambda dct: go(v, dct)
Line 1,870 ⟶ 2,084:
# mapAccumL :: (acc -> x -> (acc, y)) -> acc -> [x] -> (acc, [y])
def mapAccumL(f):
'''A tuple of an accumulation and a
with accumulation from left to right.
'''
def
tpl = f(a[0])(x)
return
def
def g(xs):
return reduce(nxt, xs, (acc, []))
return g
return go
# MAIN ---
if __name__ == '__main__':
main()</
{{Out}}
<pre>New state of wheel sets, after 20 clicks of each:
Line 1,898 ⟶ 2,114:
{'A': '1DD', 'D': '678'}
{'A': '1BC', 'B': '34', 'C': '5B'}</pre>
=={{header|Quackery}}==
As the contents of a wheel (e.g. <code>[ 1 B 2 ]</code>) is just Quackery code, wheels can be extended in interesting ways.
They could, for example, contain a nest that randomly selects a wheel to advance; <code>[ 1 [ 2 random table [ B C ] ] 2 ]</code> would do the same as <code>[ 1 B 2 ]</code>, except that on the second click of the wheel, instead of always advancing wheel <code>B</code>, <code>[ 2 random table [ B C ] ]</code> would be evaluated, causing either wheel <code>B</code> or wheel <code>C</code> to advance arbitrarily.
<syntaxhighlight lang="quackery"> [ ]this[ ]done[
dup take behead
dup dip
[ nested join
swap put ]
do ] is wheel ( --> n )
[ ]'[
]'[ nested
' [ wheel ]
swap join
swap replace ] is newwheel ( --> )
forward is A forward is B forward is C
forward is D ( and so on, as required )
[ wheel [ 1 2 3 ] ] resolves A ( --> n )
[ wheel [ 3 4 ] ] resolves B ( --> n )
[ wheel [ 5 B ] ] resolves C ( --> n )
[ wheel [ 6 7 8 ] ] resolves D ( --> n )
20 times [ A echo sp ] cr
newwheel A [ 1 B 2 ]
20 times [ A echo sp ] cr
newwheel A [ 1 D D ]
20 times [ A echo sp ] cr
newwheel A [ 1 B C ]
newwheel B [ 3 4 ] ( As B has been used already )
( it's state may be [ 4 3 ]. )
( So we reset it to [ 3 4 ]. )
20 times [ A echo sp ] cr</syntaxhighlight>
{{out}}
<pre>1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2
1 3 2 1 4 2 1 3 2 1 4 2 1 3 2 1 4 2 1 3
1 6 7 1 8 6 1 7 8 1 6 7 1 8 6 1 7 8 1 6
1 3 5 1 4 3 1 4 5 1 3 4 1 3 5 1 4 3 1 4 </pre>
=={{header|Raku}}==
(formerly Perl 6)
A succinct Raku example using a few additional language features. Wheels are implemented as infinite repeating sequences, allowing a single iterator to keep track of the current position. This means the code contains no position tracking whatsoever.
<syntaxhighlight lang="raku" line>
#| advance rotates a named wheel $n by consuming an item from an infinite sequence. It is called
#| from within a gather block and so can use take in order to construct an infinite, lazy sequence
Line 1,931 ⟶ 2,200:
#| state variables are only initialised once, and are kept between invocations.
==> map({ state $i = 1; say "Group {$i++}, First 20 values: $_[^20]" })
</
<pre>
Group 1, First 20 values: 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2
Line 1,944 ⟶ 2,213:
This REXX program uses ''numbers'' (any form), not ''digits'' (for the values on the wheels).
<
@.= /*initialize array to hold the wheels. */
parse arg lim @.1 /*obtain optional arguments from the CL*/
Line 1,953 ⟶ 2,222:
@.4= ' A: 1 B C, B: 3 4, C: 5 B '
end
do i=1 while @.i\=''; call
end /*i*/
exit
/*──────────────────────────────────────────────────────────────────────────────────────*/
error: procedure; say;
isLet: procedure; parse arg y; return datatype(
isNum: procedure; parse arg y; return datatype(
/*──────────────────────────────────────────────────────────────────────────────────────*/
say; say center(' running the wheel named ' first" ", 79, '─'); $=
gear.n.0= z; if gear.n.z=='' then gear.n.0= 1
if isNum(x) then do;
xx= x /*different gear, keep switching
do forever; nn= xx
if gear.nn.0=='' then call error "a gear is using an unknown gear name:"
zz= gear.nn.0; xx= gear.nn.zz
zz= zz + 1; gear.nn.0= zz; if gear.nn.zz=='' then gear.nn.0= 1
if isNum(xx) then do; $= $ xx; iterate
end
end /*dummy*/ /*"DUMMY" is needed for the ITERATE. */
say '('lim "results): " strip($);
{{out|output|text= when using the default inputs:}}
<pre>
Line 2,034 ⟶ 2,301:
</pre>
=={{header|Ruby}}==
<syntaxhighlight lang="ruby">groups = [{A: [1, 2, 3]},
{A: [1, :B, 2], B: [3, 4]},
{A: [1, :D, :D], D: [6, 7, 8]},
{A: [1, :B, :C], B: [3, 4], C: [5, :B]} ]
groups.each do |group|
p group
wheels = group.transform_values(&:cycle)
res = 20.times.map do
el = wheels[:A].next
el = wheels[el].next until el.is_a?(Integer)
el
end
puts res.join(" "),""
end
</syntaxhighlight>
{{out}}
<pre>{:A=>[1, 2, 3]}
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2
{:A=>[1, :B, 2], :B=>[3, 4]}
1 3 2 1 4 2 1 3 2 1 4 2 1 3 2 1 4 2 1 3
{:A=>[1, :D, :D], :D=>[6, 7, 8]}
1 6 7 1 8 6 1 7 8 1 6 7 1 8 6 1 7 8 1 6
{:A=>[1, :B, :C], :B=>[3, 4], :C=>[5, :B]}
1 3 5 1 4 3 1 4 5 1 3 4 1 3 5 1 4 3 1 4
</pre>
=={{header|Visual Basic .NET}}==
{{trans|C#}}
<
Module Module1
Line 2,076 ⟶ 2,373:
End Sub
End Module</
{{out}}
<pre>1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2
Line 2,082 ⟶ 2,379:
1 6 7 1 8 6 1 7 8 1 6 7 1 8 6 1 7 8 1 6
1 3 5 1 4 3 1 4 5 1 3 4 1 3 5 1 4 3 1 4</pre>
=={{header|Wren}}==
{{trans|Go}}
{{libheader|Wren-dynamic}}
{{libheader|Wren-sort}}
{{libheader|Wren-fmt}}
<syntaxhighlight lang="wren">import "./dynamic" for Struct
import "./sort" for Sort
import "./fmt" for Fmt
var Wheel = Struct.create("Wheel", ["next", "values"])
var generate = Fn.new { |wheels, start, maxCount|
var count = 0
var w = wheels[start]
while (true) {
var s = w.values[w.next]
var v = Num.fromString(s)
w.next = (w.next + 1) % w.values.count
wheels[start] = w
if (v) {
System.write("%(v) ")
count = count + 1
if (count == maxCount) {
System.print("...\n")
return
}
} else {
while (true) {
var w2 = wheels[s]
var ss = s
s = w2.values[w2.next]
w2.next = (w2.next + 1) % w2.values.count
wheels[ss] = w2
v = Num.fromString(s)
if (v) {
System.write("%(v) ")
count = count + 1
if (count == maxCount) {
System.print("...\n")
return
}
break
}
}
}
}
}
var printWheels = Fn.new { |wheels|
var names = []
for (name in wheels.keys) names.add(name)
Sort.quick(names)
System.print("Intersecting Number Wheel group:")
for (name in names) {
Fmt.print(" $s: $n", name, wheels[name].values)
}
System.write(" Generates:\n ")
}
var wheelMaps = [
{
"A": Wheel.new(0, ["1", "2", "3"])
},
{
"A": Wheel.new(0, ["1", "B", "2"]),
"B": Wheel.new(0, ["3", "4"])
},
{
"A": Wheel.new(0, ["1", "D", "D"]),
"D": Wheel.new(0, ["6", "7", "8"])
},
{
"A": Wheel.new(0, ["1", "B", "C"]),
"B": Wheel.new(0, ["3", "4"]),
"C": Wheel.new(0, ["5", "B"])
}
]
for (wheels in wheelMaps) {
printWheels.call(wheels)
generate.call(wheels, "A", 20)
}</syntaxhighlight>
{{out}}
<pre>
Intersecting Number Wheel group:
A: [1, 2, 3]
Generates:
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 ...
Intersecting Number Wheel group:
A: [1, B, 2]
B: [3, 4]
Generates:
1 3 2 1 4 2 1 3 2 1 4 2 1 3 2 1 4 2 1 3 ...
Intersecting Number Wheel group:
A: [1, D, D]
D: [6, 7, 8]
Generates:
1 6 7 1 8 6 1 7 8 1 6 7 1 8 6 1 7 8 1 6 ...
Intersecting Number Wheel group:
A: [1, B, C]
B: [3, 4]
C: [5, B]
Generates:
1 3 5 1 4 3 1 4 5 1 3 4 1 3 5 1 4 3 1 4 ...
</pre>
=={{header|zkl}}==
<
ws:=wheels.pump(Dictionary(),fcn([(k,v)]){ return(k,Walker.cycle(v)) }); // new Dictionary
Walker.zero().tweak(fcn(w,wheels){
Line 2,092 ⟶ 2,498:
}
}.fp("A",ws)) // assume wheel A exists and is always first
}</
<
Dictionary("A",T(1,"B",2), "B",T(3,4)),
Dictionary("A",T(1,"D","D"), "D",T(6,7,8)),
Line 2,101 ⟶ 2,507:
ws.pump(String,fcn([(k,v)]){ " %s: %s\n".fmt(k,v.concat(" ")) }).print();
println("-->",intersectingNumberWheelsW(ws).walk(20).concat(" "));
}</
{{out}}
<pre>
|