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{{draft task}}
Given a stream of characters
Stop processing immediately upon encountering a "!" found uniquely in this <i>i,i,i,i</i> position (
Ideally this can be
* The
*
Provide a reasonably interesting message to be decoded, e.g. "Silence-Dogood". Your choice.
This task was inspired by the movie "[[wp:National_Treasure_%28film%29|National Treasure]]",
=={{header|11l}}==
{{trans|Python}}
<syntaxhighlight lang="11l">T UserInput
Int formFeed
Int lineFeed
Int tab
Int space
F (chunk)
.formFeed = chunk[0]
.lineFeed = chunk[1]
.tab = chunk[2]
.space = chunk[3]
F String()
R ‘(ff=#.; lf=#.; tb=#.; sp#.)’.format(.formFeed, .lineFeed, .tab, .space)
F chunks(l, n)
[[Int]] r
L(i) (0 .< l.len).step(n)
r.append(l[i .+ n])
R r
F getUserInput()
V h = ‘0 18 0 0 0 68 0 1 0 100 0 32 0 114 0 45 0 38 0 26 0 16 0 21 0 17 0 59 0 11 ’""
‘0 29 0 102 0 0 0 10 0 50 0 39 0 42 0 33 0 50 0 46 0 54 0 76 0 47 0 84 2 28’
V ha = h.split(‘ ’).map(Int)
R chunks(ha, 4).map(chunk -> UserInput(chunk))
F decode(filename, uiList)
V f = File(filename)
V text = f.read()
F decode2(ui)
V f = 0
V l = 0
V t = 0
V s = 0
L(c) @text
I f == ui.formFeed & l == ui.lineFeed & t == ui.tab & s == ui.space
I c == ‘!’
R 0B
print(c, end' ‘’)
R 1B
I c.code == 0'C
f = f + 1
l = 0
t = 0
s = 0
E I c == "\n"
l = l + 1
t = 0
s = 0
E I c == "\t"
t = t + 1
s = 0
E
s = s + 1
R 0B
L(ui) uiList
I !decode2(ui)
L.break
print()
V uiList = getUserInput()
decode(‘theRaven.txt’, uiList)</syntaxhighlight>
{{out}}
<pre>
Silence-Dogood.
</pre>
=={{header|C}}==
{{trans|C++}}
<
#include <stdio.h>
#include <stdlib.h>
Line 229 ⟶ 303:
return 0;
}</
{{out}}
<pre>Silence-Dogood.</pre>
Line 235 ⟶ 309:
=={{header|C sharp|C#}}==
{{trans|D}}
<
using System.Collections.Generic;
using System.Linq;
Line 313 ⟶ 387:
}
}
}</
{{out}}
<pre>Silence-Dogood.</pre>
Line 319 ⟶ 393:
=={{header|C++}}==
Text used to encode:[http://paulo-jorente.de/text/theRaven.txt The Raven - by E.A.Poe]
<
#include <vector>
#include <iostream>
Line 380 ⟶ 454:
return 0;
}
</syntaxhighlight>
{{out}}
<pre>
Line 388 ⟶ 462:
=={{header|D}}==
{{trans|Kotlin}}
<
import std.array;
import std.conv;
Line 452 ⟶ 526:
auto uiList = getUserInput();
decode("theRaven.txt", uiList);
}</
{{out}}
<pre>Silence-Dogood.</pre>
Line 458 ⟶ 532:
=={{header|Go}}==
{{trans|C++}}
<
import (
Line 536 ⟶ 610:
log.Fatal(err)
}
}</
{{out}}
Line 545 ⟶ 619:
=={{header|Java}}==
{{trans|Kotlin}}
<
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
Line 663 ⟶ 737:
decode("theRaven.txt", uiList);
}
}</
{{out}}
<pre>Silence-Dogood.</pre>
=={{header|jq}}==
'''Adapted from [[#Wren|Wren]]'''
{{works with|jq}}
'''Works with gojq, the Go implementation of jq'''
<syntaxhighlight lang="jq"># User input takes the form of quadtuples of integers: [formFeed, lineFeed, tab, space]
def getUserInput:
def nwise($n):
def n: if length <= $n then . else .[0:$n] , (.[$n:] | n) end;
n;
"0 18 0 0 0 68 0 1 0 100 0 32 0 114 0 45 0 38 0 26 0 16 0 21 0 17 0 59 0 11 " +
"0 29 0 102 0 0 0 10 0 50 0 39 0 42 0 33 0 50 0 46 0 54 0 76 0 47 0 84 2 28"
| split(" ") | map(tonumber) | nwise(4)
| {formFeed: .[0], lineFeed: .[1], tab: .[2], space: .[3]} ;
def emit_until(cond; stream):
label $out | stream | if cond then break $out else . end;
# Input should be the text as a (long) string
def decode($uiList):
def stream: explode[] | [.] | implode;
def decode2(ui):
. as $text
| label $out
| foreach stream as $c (
{ f: 0, l: 0, t: 0, s: 0 };
if .f == ui.formFeed and .l == ui.lineFeed and .t == ui.tab and .s == ui.space
then .out = $c
elif $c == "\f"
then .f += 1
| .l = 0
| .t = 0
| .s = 0
elif $c == "\n"
then .l += 1
| .t = 0
| .s = 0
elif $c == "\t"
then .t += 1
| .s = 0
else .s += 1
end;
if .out then .out, break $out else empty end )
// "" ;
decode2($uiList) ;
# Input: the text
[emit_until(. == "!"; getUserInput as $ui | decode($ui)) ] | add</syntaxhighlight>
{{out}}
Invocation: jq -Rsr -f program.jq theRaven.txt
<pre>
Silence-Dogood.
</pre>
=={{header|Julia}}==
Customization is via adding to or deleting from the chars dictionary.
<
chars = Dict(GET_FF => ['\f'], GET_LF => ['\n'], GET_TAB => ['\t'])
Line 708 ⟶ 836:
stream_decode_jit(open("filename.txt", "r"))
</syntaxhighlight>
=={{header|Kotlin}}==
{{trans|C++}}
<
import java.io.File
Line 761 ⟶ 889:
val uiList = getUserInput()
decode("theRaven.txt", uiList)
}</
{{out}}
Line 767 ⟶ 895:
Silence-Dogood.
</pre>
=={{header|Nim}}==
{{trans|Kotlin}}
With some modifications compared to the model.
<syntaxhighlight lang="nim">import options, sequtils, strutils
type Position = tuple[ff, lf, tab, sp: int]
func buildUserInput(s: string): seq[Position] =
let valList = s.splitWhitespace().map(parseInt)
doAssert valList.len mod 4 == 0, "Number of values must be a multiple of four."
doAssert valList.allIt(it >= 0), "Expected non negative values."
let posList = valList.distribute(valList.len div 4)
result = posList.mapIt((ff: it[0], lf: it[1], tab: it[2], sp: it[3]))
proc decode(filename: string; uiList: seq[Position]): string =
func decode(text: string; ui: Position): Option[char] =
var f, l, t, s = 0
let (ff, lf, tab, sp) = ui
for c in text:
if f == ff and l == lf and t == tab and s == sp:
return if c == '!': none(char) else: some(c)
case c
of '\f': inc f; l = 0; t = 0; s = 0
of '\l': inc l; t = 0; s = 0
of '\t': inc t; s = 0
else: inc s
let text = filename.readFile()
for ui in uiList:
let c = text.decode(ui)
if c.isNone: break
result.add c.get()
const UiList = buildUserInput("0 18 0 0 0 68 0 1 0 100 0 32 0 114 0 " &
"45 0 38 0 26 0 16 0 21 0 17 0 59 0 11 " &
"0 29 0 102 0 0 0 10 0 50 0 39 0 42 0 " &
"33 0 50 0 46 0 54 0 76 0 47 0 84 2 28")
echo "theRaven.txt".decode(UiList)</syntaxhighlight>
{{out}}
<pre>Silence-Dogood.</pre>
=={{header|Perl}}==
{{trans|Raku}}
{{libheader|ntheory}}
<
use warnings;
use feature 'say';
Line 824 ⟶ 998:
my $enc = jit_encode('The slithey toves did gyre and gimble in the wabe');
say my $result = "Encoded\n$enc\n\nDecoded\n" . jit_decode($enc);</
{{out}}
<pre>Encoded
Line 834 ⟶ 1,008:
=={{header|Phix}}==
{{trans|C}}
{{libheader|Phix/libcurl}}
<!--<syntaxhighlight lang="phix">(notonline)-->
<span style="color: #000080;font-style:italic;">-- demo/rosetta/BookCipher.exw</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">decode</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">fn</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">sequence</span> <span style="color: #000000;">ui</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">ff</span><span style="color: #0000FF;">,</span><span style="color: #000000;">lf</span><span style="color: #0000FF;">,</span><span style="color: #000000;">tab</span><span style="color: #0000FF;">,</span><span style="color: #000000;">sp</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">ui</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">f</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">l</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">t</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">s</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span>
<span style="color: #008080;">while</span> <span style="color: #004600;">true</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">c</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">getc</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">=-</span><span style="color: #000000;">1</span> <span style="color: #008080;">then</span> <span style="color: #008080;">return</span> <span style="color: #004600;">false</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">f</span><span style="color: #0000FF;">==</span><span style="color: #000000;">ff</span> <span style="color: #008080;">and</span> <span style="color: #000000;">l</span><span style="color: #0000FF;">==</span><span style="color: #000000;">lf</span> <span style="color: #008080;">and</span> <span style="color: #000000;">t</span><span style="color: #0000FF;">==</span><span style="color: #000000;">tab</span> <span style="color: #008080;">and</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">==</span><span style="color: #000000;">sp</span> <span style="color: #008080;">then</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">==</span><span style="color: #008000;">'!'</span> <span style="color: #008080;">then</span> <span style="color: #008080;">return</span> <span style="color: #004600;">false</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">c</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #004600;">true</span>
<span style="color: #008080;">elsif</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">==</span><span style="color: #000000;">#0C</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">f</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">l</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">t</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">}</span>
<span style="color: #008080;">elsif</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">==</span><span style="color: #008000;">'\n'</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">l</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">t</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">}</span>
<span style="color: #008080;">elsif</span> <span style="color: #000000;">c</span><span style="color: #0000FF;">==</span><span style="color: #008000;">'\t'</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">t</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #000000;">s</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span>
<span style="color: #008080;">else</span>
<span style="color: #000000;">s</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: #004600;">false</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">include</span> <span style="color: #000000;">builtins</span><span style="color: #0000FF;">\</span><span style="color: #000000;">libcurl</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
<span style="color: #008080;">procedure</span> <span style="color: #000000;">decodeFile</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">filename</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">url</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">sequence</span> <span style="color: #000000;">code</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #008080;">not</span> <span style="color: #7060A8;">file_exists</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"Downloading %s...\n"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">})</span>
<span style="color: #004080;">CURLcode</span> <span style="color: #000000;">res</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">curl_easy_get_file</span><span style="color: #0000FF;">(</span><span style="color: #000000;">url</span><span style="color: #0000FF;">,</span><span style="color: #008000;">""</span><span style="color: #0000FF;">,</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- (no proxy)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">res</span><span style="color: #0000FF;">!=</span><span style="color: #004600;">CURLE_OK</span> <span style="color: #008080;">then</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">error</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%d"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">res</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">res</span><span style="color: #0000FF;">=</span><span style="color: #000000;">CURLE_COULDNT_RESOLVE_HOST</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">error</span> <span style="color: #0000FF;">&=</span> <span style="color: #008000;">" [CURLE_COULDNT_RESOLVE_HOST]"</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Error %s downloading file\n"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">error</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">fn</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">open</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"r"</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">fn</span><span style="color: #0000FF;">=-</span><span style="color: #000000;">1</span> <span style="color: #008080;">then</span> <span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"could not open %s"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">})</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</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;">code</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
<span style="color: #008080;">if</span> <span style="color: #008080;">not</span> <span style="color: #000000;">decode</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">,</span><span style="color: #000000;">code</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">])</span> <span style="color: #008080;">then</span> <span style="color: #008080;">exit</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">seek</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">)!=</span><span style="color: #004600;">SEEK_OK</span> <span style="color: #008080;">then</span> <span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"seek error"</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"\n\n"</span><span style="color: #0000FF;">);</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">code</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">18</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">68</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">100</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">32</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">114</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">45</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">38</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">26</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">16</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">21</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">17</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">59</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">11</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">29</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">102</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">10</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">50</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">39</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">42</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">33</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">50</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">46</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">54</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">76</span><span style="color: #0000FF;">,</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">47</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">84</span><span style="color: #0000FF;">,</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #000000;">28</span><span style="color: #0000FF;">}}</span>
<span style="color: #000000;">decodeFile</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"theRaven.txt"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"http://paulo-jorente.de/text/theRaven.txt"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">code</span><span style="color: #0000FF;">)</span>
<span style="color: #0000FF;">{}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">wait_key</span><span style="color: #0000FF;">()</span>
<!--</syntaxhighlight>-->
{{out}}
<pre>
Line 908 ⟶ 1,085:
=={{header|Python}}==
{{trans|D}}
<
class UserInput:
Line 969 ⟶ 1,146:
uiList = getUserInput()
decode("theRaven.txt", uiList)</
{{out}}
<pre>Silence-Dogood.</pre>
Line 977 ⟶ 1,154:
{{trans|Kotlin}}
<
(define user-input
Line 999 ⟶ 1,176:
(define c (decode slice))
#:break (char=? #\! c)
(display c))</
{{in}}
Line 1,019 ⟶ 1,196:
Will handle any visible character in the ASCII range as well as space and new-line.
<syntaxhighlight lang="raku"
Set srand to set the encode / decode "key".
Need to use the same "key" and same implementation
Line 1,081 ⟶ 1,258:
say "\n== Decoded: ==";
say jit-decode($enc);</
<pre>== Secret: ==
Line 1,112 ⟶ 1,289:
The input file used by this REXX program only contains one page; it has no ''FF'' (''formfeed'') characters in it),
<br>and the injection of ''FF'' characters into the file would be like putting pencil marks into a holy book. <big><big><big> ☺ </big></big></big>
<
parse arg iFID . /*obtain optional name of file (book).*/
if iFID=='' | iFID=="," then iFID= 'JIT.TXT' /*Not specified? Then use the default.*/
Line 1,146 ⟶ 1,323:
?= ? || x /*append the character to the phrase. */
end /*j*/ /* [↑] display letters found in book. */
say '═════►' ? /*stick a fork in it, we're all done. */</
{{out|input|text= supplied to the console (terminal) by the user in response to the prompts, (the commas are optional):}}
<pre>
Line 1,178 ⟶ 1,355:
=={{header|Tcl}}==
{{works with|Tcl|8.6}}
<
oo::class create JustInTimeStreamExtract {
Line 1,247 ⟶ 1,424:
tcl::mathop::== $counter $counters(page) $counters(line) $counters(field) $counters(char)
}
}</
Demonstration of use:
<
<!-- no output; I'll wait for someone else to invent something to decode… -->
=={{header|Visual Basic .NET}}==
{{trans|C#}}
<syntaxhighlight lang="vbnet">Module Module1
Structure UserInput
ReadOnly FormFeed As Char
ReadOnly LineFeed As Char
ReadOnly Tab As Char
ReadOnly Space As Char
Sub New(ff As String, lf As String, tb As String, sp As String)
FormFeed = ChrW(Integer.Parse(ff))
LineFeed = ChrW(Integer.Parse(lf))
Tab = ChrW(Integer.Parse(tb))
Space = ChrW(Integer.Parse(sp))
End Sub
End Structure
Function GetUserInput() As List(Of UserInput)
Dim h = "0 18 0 0 0 68 0 1 0 100 0 32 0 114 0 45 0 38 0 26 0 16 0 21 0 17 0 59 0 11 " &
"0 29 0 102 0 0 0 10 0 50 0 39 0 42 0 33 0 50 0 46 0 54 0 76 0 47 0 84 2 28"
Return h.Split(" ") _
.Select(Function(x, idx) New With {x, idx}) _
.GroupBy(Function(x) x.idx \ 4) _
.Select(Function(g)
Dim ge = g.Select(Function(a) a.x).ToArray()
Return New UserInput(ge(0), ge(1), ge(2), ge(3))
End Function) _
.ToList()
End Function
Sub Decode(filename As String, uiList As List(Of UserInput))
Dim text = IO.File.ReadAllText(filename)
Dim Inc = Function(a As Char) As Char
Return ChrW(AscW(a) + 1)
End Function
Dim DecodeImpl = Function(ui As UserInput) As Boolean
Dim f = ChrW(0)
Dim l = ChrW(0)
Dim t = ChrW(0)
Dim s = ChrW(0)
For Each c In text
If f = ui.FormFeed AndAlso l = ui.LineFeed AndAlso t = ui.Tab AndAlso s = ui.Space Then
If c = "!" Then
Return False
End If
Console.Write(c)
Return True
End If
If vbFormFeed = c Then
f = Inc(f)
l = ChrW(0)
t = ChrW(0)
s = ChrW(0)
ElseIf vbLf = c Then
l = Inc(l)
t = ChrW(0)
s = ChrW(0)
ElseIf vbTab = c Then
t = Inc(t)
s = ChrW(0)
Else
s = Inc(s)
End If
Next
Return False
End Function
For Each ui In uiList
If Not DecodeImpl(ui) Then
Exit For
End If
Next
Console.WriteLine()
End Sub
Sub Main()
Dim uiList = GetUserInput()
Decode("theRaven.txt", uiList)
End Sub
End Module</syntaxhighlight>
{{out}}
<pre>Silence-Dogood.</pre>
=={{header|Wren}}==
{{trans|Kotlin}}
{{libheader|Wren-dynamic}}
{{libheader|wren-seq}}
<syntaxhighlight lang="wren">import "io" for File
import "./dynamic" for Tuple
import "./seq" for Lst
var UserInput = Tuple.create("UserINput", ["formFeed", "lineFeed", "tab", "space"])
var getUserInput = Fn.new {
var h = "0 18 0 0 0 68 0 1 0 100 0 32 0 114 0 45 0 38 0 26 0 16 0 21 0 17 0 59 0 11 " +
"0 29 0 102 0 0 0 10 0 50 0 39 0 42 0 33 0 50 0 46 0 54 0 76 0 47 0 84 2 28"
return Lst.chunks(h.split(" "), 4).map { |chunk|
var flts = chunk.map { |c| Num.fromString(c) }.toList
return UserInput.new(flts[0], flts[1], flts[2], flts[3])
}
}
var decode = Fn.new { |fileName, uiList|
var text = File.read(fileName)
var decode2 = Fn.new { |ui|
var f = 0
var l = 0
var t = 0
var s = 0
for (c in text) {
if (f == ui.formFeed && l == ui.lineFeed && t == ui.tab && s == ui.space) {
if (c == "!") return false
System.write(c)
return true
}
if (c == "\f") {
f = f + 1
l = 0
t = 0
s = 0
} else if (c == "\n") {
l = l + 1
t = 0
s = 0
} else if (c == "\t") {
t = t + 1
s = 0
} else {
s = s + 1
}
}
return false
}
for (ui in uiList) if (!decode2.call(ui)) break
System.print()
}
var uiList = getUserInput.call()
decode.call("theRaven.txt", uiList)</syntaxhighlight>
{{out}}
<pre>
Silence-Dogood.
</pre>
=={{header|zkl}}==
{{trans|C++}}
<
fcn decode(file,tuplets){
codePad:=File(file).read().mode(String); // blob of text
Line 1,278 ⟶ 1,609:
h.split(" ").pump(List,T(Void.Read,3),
fcn(ff,lf,t,s){ vm.arglist.apply("toInt") });
}</
<
// our code pad is: http://paulo-jorente.de/text/theRaven.txt
FlyBy.decode("theRaven.txt",input);</
{{out}}
<pre>
|