Rosetta Code/Count examples: Difference between revisions
m
→{{header|Wren}}: Minor changes (though see Talk Page re encoding of '+')
Thundergnat (talk | contribs) m (→{{header|Ring}}: Remove vanity tags) |
m (→{{header|Wren}}: Minor changes (though see Talk Page re encoding of '+')) |
||
| (35 intermediate revisions by 13 users not shown) | |||
Line 18:
{{libheader|AWS}}
Parsing XML file with XMLAda from AdaCore
<
with Dom.Readers, Dom.Core, Dom.Core.Documents, Dom.Core.Nodes, Dom.Core.Attrs;
with Input_Sources.Strings, Unicode, Unicode.Ces.Utf8;
Line 119:
Put_Line ("Total :" & Integer'Image (Total) & " exemples.");
end Count_Examples;
</syntaxhighlight>
Output :
<pre>
Line 130:
=={{header|AutoHotkey}}==
<
, http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500&format=xml
, tasks.xml
Line 149:
}
MsgBox % output
Return</
=={{header|BBC BASIC}}==
{{works with|BBC BASIC for Windows}}
<
SYS "LoadLibrary", "URLMON.DLL" TO urlmon%
Line 236:
WHEN """: = """"
ENDCASE
= h$</
'''Sample output:'''
<pre>
Line 265:
=={{header|Bracmat}}==
<
=
. sys$(str$("wget -q -O wget.out \"" !arg \"))
Line 305:
)
& lst$(list,taskfreq,NEW)
)</
Output (in file <code>tasqfreq</code>):
<pre>list=
Line 353:
Object-oriented solution.
<
using System.Collections.Generic;
using System.Linq;
Line 402:
foreach (string task in tasknames) {
string content = GetSourceCodeFromPage(WebUtility.UrlEncode(task), wc);
Task t = new Task(task, count);
Console.WriteLine(t);
tasks.Add(t);
}
catch (Exception ex) {
Console.WriteLine("**** Unable to get task \"" + task + "\": " + ex.Message);
}
}
Console.WriteLine("\nTotal: {0} examples.", tasks.Select(x => x.Examples).Sum());
}
}</
=={{header|Clojure}}==
<
(:import [java.net URLEncoder])
(:use [clojure.contrib.http.agent :only (http-agent string)]
Line 454 ⟶ 459:
(flush))
(println "Total: " (reduce #(+ %1 (second %2)) 0 task-counts))))
</syntaxhighlight>
<
100 doors: 73
24 game: 18
Line 471 ⟶ 476:
Total: 11216
nil
</syntaxhighlight>
=={{header|D}}==
{{works with|Tango}}
<syntaxhighlight lang="d">
import tango.io.Stdout;
import tango.net.http.HttpClient;
Line 524 ⟶ 529:
}
}
</syntaxhighlight>
=={{header|EGL}}==
Line 532 ⟶ 537:
User Interface: RosettaCodeHandler.egl
<
import org.eclipse.edt.rui.widgets.*;
Line 607 ⟶ 612:
title string;
count int;
end</
Service Interface: ProxyFunctions.egl
<
library ProxyFunctions
Line 646 ⟶ 651:
record QueryContinue
categorymembers Categorymembers;
end</
=={{header|Erlang}}==
Line 653 ⟶ 657:
{{libheader|xmerl}}
<
-module(rosseta_examples).
-include_lib("xmerl/include/xmerl.hrl").
Line 716 ⟶ 720:
replace_chars([],Acc) ->
lists:reverse(Acc).
</syntaxhighlight>
Line 736 ⟶ 740:
Using asynchronous workflows to perform downloads concurrently:
<
let uri1 = "http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500&format=xml"
Line 753 ⟶ 757:
|> Async.Parallel
|> Async.RunSynchronously
|> fun xs -> printfn "Total: %d examples" (Seq.sum xs)</
This is 21× faster than the python thanks to the concurrency.
=={{header|Factor}}==
Runs in about a minute. The number of threads is limited to 10 avoid cloudfare's protection mechanism.
<
concurrency.semaphores formatting hashtables http.client io
json.reader kernel math math.parser sequences splitting
Line 800 ⟶ 805:
all-programming-titles fetch-counts print-counts ;
MAIN: rosetta-examples</
Outputs:
Line 810 ⟶ 815:
Total: 30745 examples.</pre>
=={{header|Go}}==
<
import (
Line 885 ⟶ 891:
fmt.Printf("%s: %d\n", cm, examples)
total += examples
}</
{{out|Output: (May 25, 2011)}}
<pre>
Line 899 ⟶ 905:
{{libheader|HTTP XML}} from [http://hackage.haskell.org/packages/hackage.html HackageDB]
<
import Network.HTTP
import Network.URI
Line 935 ⟶ 941:
mapM_ putStrLn $ zipWith showFormatted tasks ns
putStrLn $ ("Total: " ++) $ show tot</
some output:
<
100 doors: 56
24 game: 11
Line 946 ⟶ 952:
Active object: 9
...
Total: 9156</
==Icon and {{header|Unicon}}==
The following code uses features exclusive to Unicon. This version handles all tasks, not just the first 500.
<
$define RCTASK "http://rosettacode.org/mw/index.php?action=raw&title="
$define RCUA "User-Agent: Unicon Rosetta 0.1"
Line 1,032 ⟶ 1,038:
close(page)
return text
end</
{{libheader|Icon Programming Library}}
Line 1,064 ⟶ 1,070:
'''Solution:'''<br>
Using <code>getCategoryMembers</code> from [[Find unimplemented tasks#J|Find unimplemented tasks]].
<
getAllTaskSolnCounts=: monad define
Line 1,083 ⟶ 1,089:
res=. ;:^:_1 tasks ,. (8!:0 counts) ,. <'examples.'
res , 'Total examples: ' , ": +/counts
)</
'''Example Usage:'''
<
100 doors: 61 examples.
24 game: 15 examples.
24 game Player: 11 examples.
99 Bottles of Beer: 76 examples.
...</
=={{header|Java}}==
{{works with|Java|1.5+}}
<
import java.util.ArrayList;
import ScreenScrape;
Line 1,165 ⟶ 1,171:
}
}
</syntaxhighlight>
[[Count programming examples/Java/ScreenScrape|ScreenScrape class]]
=={{header|jq}}==
Line 1,175 ⟶ 1,179:
`@uri` filter in the bash function `titles`.
<
# Produce lines of the form: URI TITLE
Line 1,199 ⟶ 1,203:
n=$((n + i))
done < <(titles)
echo Total: $n examples.</
{{out}}
Line 1,212 ⟶ 1,216:
Palindrome detection: 136 examples.
Total: 32416 examples.</pre>
=={{header|Julia}}==
Output by page is too long, so summaries only output shown.
<syntaxhighlight lang="julia">using HTTP, JSON, Dates
rosorg = "http://rosettacode.org"
qURI = "/w/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500&format=json"
qdURI = "/w/api.php?action=query&list=categorymembers&cmtitle=Category:Draft_Programming_Tasks&cmlimit=500&format=json"
sqURI = rosorg * "/wiki/"
topages(js, v) = for d in js["query"]["categorymembers"] push!(v, sqURI * replace(d["title"], " " => "_")) end
function getpages(uri)
wikipages = Vector{String}()
response = HTTP.request("GET", rosorg * uri)
if response.status == 200
fromjson = JSON.parse(String(response.body))
topages(fromjson, wikipages)
while haskey(fromjson, "continue")
cmcont, cont = fromjson["continue"]["cmcontinue"], fromjson["continue"]["continue"]
response = HTTP.request("GET", rosorg * uri * "&cmcontinue=$cmcont&continue=$cont")
fromjson = JSON.parse(String(response.body))
topages(fromjson, wikipages)
end
end
wikipages
end
function processtaskpages(wpages, verbose=false)
totalexamples = 0
for pag in wpages
response = HTTP.request("GET", pag)
if response.status == 200
n = length(collect(eachmatch(r"span class=\"mw-headline\"", String(response.body))))
if verbose
println("Wiki page $pag => $n examples.")
end
totalexamples += n
end
end
println("Total of $totalexamples on $(length(wpages)) task pages.\n")
end
println("Programming examples at $(DateTime(now())):")
qURI |> getpages |> processtaskpages
println("Draft programming tasks:")
qdURI |> getpages |> processtaskpages
</syntaxhighlight>{{out}}
<pre>
Programming examples at 2019-02-16T21:04:15.583:
Total of 66388 on 928 task pages.
Draft programming tasks:
Total of 3385 on 216 task pages.
</pre>
=={{header|Lasso}}==
<
local(tasks = array, title = string, urltitle = string, thiscount = 0, totalex = 0)
with i in #root->find('query')->find('categorymembers') do => {^
Line 1,230 ⟶ 1,290:
'\r'
^}
'Total: '+#totalex+' examples.'</
{{out}}
Line 1,252 ⟶ 1,312:
2. Add a text field called "tasks"
n.b. The list of tasks is limited to 10 for demo purposes<
put empty into fld "taskurls"
put URL "http://rosettacode.org/mw/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=10&format=xml" into apixml
Line 1,268 ⟶ 1,328:
end repeat
put "Total" & comma & allTaskTotal after fld "tasks"
end mouseUp</
=={{header|Maple}}==
<
local i, tempstring, uniindex;
try
Line 1,308 ⟶ 1,368:
print_examples(x["query"]["categorymembers"]);
end do:
</syntaxhighlight>
{{Out|Output}}
<pre>
Line 1,423 ⟶ 1,483:
</pre>
=={{header|Mathematica}}/{{header|Wolfram Language}}==
<
Import["http://rosettacode.org/wiki/Category:Programming_Tasks", "Data"][[1, 1]]];
Print["Task \"", StringReplace[#, "_" -> " "], "\" has ",
Length@Select[Import["http://rosettacode.org/wiki/" <> #, "Data"][[1,2]],
StringFreeQ[#, __ ~~ "Programming Task" | __ ~~ "Omit"]& ], " example(s)"]&
~Map~ StringReplace[TaskList, " " -> "_"]</
returns:
<pre>Task "100 doors" has 143 example(s)
Line 1,440 ⟶ 1,499:
The function count_examples() need to be saved in a file count_examples.m and its directory need to be included in the path.
<
c = 0;
[s, success] = urlread (url);
Line 1,457 ⟶ 1,516:
c = count_examples(['http://rosettacode.org',t]);
printf('Task "%s" has %i examples.\n',t(7:end), c);
end; </
Output:
Line 1,469 ⟶ 1,528:
=={{header|Nim}}==
<
proc count(s, sub: string): int =
var i = 0
while true:
i = s.find(sub, i)
if i < 0: break
inc i
inc result
const
mainSite = "http://www.rosettacode.org/
subSite = "http://www.rosettacode.org/
var client = newHttpClient()
var sum = 0
for node in client.getContent(mainSite).parseXml().findAll("cm"):
let t = node.attr("title").replace(" ", "_")
let c = client.getContent(subSite % encodeUrl(t)).toLower().count("{{header|")
echo t.replace("_", " "), ": ", c, " examples."
inc sum, c
echo "\nTotal: ", sum, " examples."</syntaxhighlight>
{{out}}
<pre>100 doors: 326 examples.
Abbreviations, automatic: 39 examples.
Abbreviations, easy: 38 examples.
Abbreviations, simple: 36 examples.
ABC problem: 132 examples.
Abelian sandpile model: 25 examples.
Abelian sandpile model/Identity: 19 examples.
Abstract type: 89 examples.
Abundant odd numbers: 53 examples.
Abundant, deficient and perfect number classifications: 89 examples.
Accumulator factory: 111 examples
[...]</pre>
=={{header|Objeck}}==
<
use XML;
Line 1,545 ⟶ 1,615:
return xml;
}
}</
Output:<pre>Amb: 28
Line 1,578 ⟶ 1,648:
ocamlfind opt -linkpkg -package str,unix,xml-light,netclient countex.ml -o countex.opt
<
Line 1,639 ⟶ 1,709:
let catmb = get_child "categorymembers" query in
List.iter f catmb
| _ -> ()</
outputs:
Line 1,666 ⟶ 1,736:
{{libheader|OzHttpClient}}
<
[HTTPClient] = {Module.link ['x-ozlib://mesaros/net/HTTPClient.ozf']}
[XMLParser] = {Module.link ['x-oz://system/xml/Parser.ozf']}
Line 1,750 ⟶ 1,820:
end
in
{Main}</
Example output:
Line 1,768 ⟶ 1,838:
=={{header|Perl}}==
<
my $site = "http://rosettacode.org";
my $list_url = "/
for ($response->{content} =~ /cm.*?title="(.*?)"/g) {
(my $slug = $_) =~ tr/ /_/;
my $
my $count = () = $response->{content} =~ /toclevel-1/g;
print "$_: $count examples\n";
}</
{{libheader|Mojolicious}}
<syntaxhighlight lang="perl">use Mojo::UserAgent;
my $site = "http://rosettacode.org";
Line 1,791 ⟶ 1,862:
my $count = $ua->get("$site/wiki/$slug")->res->dom->find("#toc .toclevel-1")->size;
say "$_->{title}: $count examples";
});</
=={{header|Phix}}==
First, some common code used by several tasks:
<!--<syntaxhighlight lang="phix">(notonline)-->
<span style="color: #000080;font-style:italic;">--
-- demo\rosetta\rosettacode_cache.e
-- ================================
--
-- Common routines for handling rc_cache etc.
--</span>
<span style="color: #008080;">without</span> <span style="color: #008080;">js</span> <span style="color: #000080;font-style:italic;">-- (libcurl, file i/o, peek, progress..)</span>
<span style="color: #008080;">include</span> <span style="color: #000000;">builtins</span><span style="color: #0000FF;">\</span><span style="color: #004080;">timedate</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">day</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">timedelta</span><span style="color: #0000FF;">(</span><span style="color: #000000;">days</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;">refresh_cache</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">21</span><span style="color: #0000FF;">*</span><span style="color: #000000;">day</span> <span style="color: #000080;font-style:italic;">-- 0 for always [NB refresh_cache += timedelta(days:=1) below]</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">days</span><span style="color: #0000FF;">(</span><span style="color: #004080;">atom</span> <span style="color: #000000;">delta</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">d</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">ceil</span><span style="color: #0000FF;">(</span><span style="color: #000000;">delta</span><span style="color: #0000FF;">/</span><span style="color: #000000;">day</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%d day%s"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">d</span><span style="color: #0000FF;">,</span><span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #000000;">d</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span><span style="color: #0000FF;">?</span><span style="color: #008000;">""</span><span style="color: #0000FF;">:</span><span style="color: #008000;">"s"</span><span style="color: #0000FF;">)})</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">constant</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">hex</span><span style="color: #0000FF;">,</span><span style="color: #000000;">ascii</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">columnize</span><span style="color: #0000FF;">({{</span><span style="color: #008000;">"%22"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">`"`</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%27"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"'"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%2A"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"*"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%2B"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"+"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%3A"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">":"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%5E"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">`^`</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%E2%80%93"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"-"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%E2%80%99"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"'"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%C3%A8"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"e"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%C3%A9"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"e"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%C3%B6"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"o"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"%C5%91"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"o"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"""</span><span style="color: #0000FF;">,</span><span style="color: #008000;">`"`</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"'"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"'"</span><span style="color: #0000FF;">},</span>
<span style="color: #0000FF;">{</span><span style="color: #008000;">"_"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">" "</span><span style="color: #0000FF;">}})</span>
<span style="color: #008080;">global</span> <span style="color: #008080;">function</span> <span style="color: #000000;">html_clean</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #7060A8;">substitute_all</span><span style="color: #0000FF;">(</span><span style="color: #000000;">s</span><span style="color: #0000FF;">,</span><span style="color: #000000;">hex</span><span style="color: #0000FF;">,</span><span style="color: #000000;">ascii</span><span style="color: #0000FF;">)</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: #004080;">atom</span> <span style="color: #000000;">curl</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">NULL</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">pErrorBuffer</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">write_callback</span><span style="color: #0000FF;">(</span><span style="color: #004080;">atom</span> <span style="color: #000000;">pData</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">integer</span> <span style="color: #000000;">size</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">nmemb</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">fn</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">bytes_written</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">size</span> <span style="color: #0000FF;">*</span> <span style="color: #000000;">nmemb</span>
<span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">peek</span><span style="color: #0000FF;">({</span><span style="color: #000000;">pData</span><span style="color: #0000FF;">,</span><span style="color: #000000;">bytes_written</span><span style="color: #0000FF;">}))</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">bytes_written</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">write_cb</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">call_back</span><span style="color: #0000FF;">({</span><span style="color: #008000;">'+'</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">write_callback</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">global</span> <span style="color: #004080;">string</span> <span style="color: #000000;">wastitle</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">""</span> <span style="color: #000080;font-style:italic;">-- don't clobber "NEED EDITING"/Downloading messages</span>
<span style="color: #008080;">global</span> <span style="color: #004080;">integer</span> <span style="color: #000000;">show_title</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">progress</span>
<span style="color: #008080;">global</span> <span style="color: #008080;">function</span> <span style="color: #000000;">open_download</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;">integer</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">n</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">object</span> <span style="color: #000000;">text</span>
<span style="color: #004080;">bool</span> <span style="color: #000000;">refetch</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">false</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">why</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"not found"</span>
<span style="color: #000000;">filename</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">join_path</span><span style="color: #0000FF;">({</span><span style="color: #008000;">"rc_cache"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">if</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: #000080;font-style:italic;">-- use existing file if <= refresh_cache days old</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">last_mod</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">get_file_date</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">delta</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">timedate_diff</span><span style="color: #0000FF;">(</span><span style="color: #000000;">last_mod</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">date</span><span style="color: #0000FF;">())</span>
<span style="color: #000000;">refetch</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">true</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">delta</span><span style="color: #0000FF;">></span><span style="color: #000000;">refresh_cache</span>
<span style="color: #008080;">and</span> <span style="color: #008080;">not</span> <span style="color: #7060A8;">match</span><span style="color: #0000FF;">(</span><span style="color: #008000;">".hist"</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: #000000;">why</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">days</span><span style="color: #0000FF;">(</span><span style="color: #000000;">delta</span><span style="color: #0000FF;">)</span> <span style="color: #0000FF;">&</span> <span style="color: #008000;">" > "</span> <span style="color: #0000FF;">&</span> <span style="color: #000000;">days</span><span style="color: #0000FF;">(</span><span style="color: #000000;">refresh_cache</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">elsif</span> <span style="color: #7060A8;">get_file_size</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">)=</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">why</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"filesize of 0"</span>
<span style="color: #000000;">text</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">trim</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">get_text</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">))</span>
<span style="color: #008080;">if</span> <span style="color: #008080;">not</span> <span style="color: #004080;">sequence</span><span style="color: #0000FF;">(</span><span style="color: #000000;">text</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">why</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"no text"</span>
<span style="color: #008080;">elsif</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">text</span><span style="color: #0000FF;">)<</span><span style="color: #000000;">10</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">why</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"<10 bytes"</span>
<span style="color: #008080;">else</span>
<span style="color: #000000;">refetch</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">false</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">else</span>
<span style="color: #000000;">refetch</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">true</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">directory</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">get_file_path</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">get_file_type</span><span style="color: #0000FF;">(</span><span style="color: #000000;">directory</span><span style="color: #0000FF;">)!=</span><span style="color: #004600;">FILETYPE_DIRECTORY</span> <span style="color: #008080;">then</span>
<span style="color: #008080;">if</span> <span style="color: #008080;">not</span> <span style="color: #000000;">create_directory</span><span style="color: #0000FF;">(</span><span style="color: #000000;">directory</span><span style="color: #0000FF;">,</span><span style="color: #000000;">make_parent</span><span style="color: #0000FF;">:=</span><span style="color: #004600;">true</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
<span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"cannot create %s directory"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">directory</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: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">refetch</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">wastitle</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"x"</span> <span style="color: #000080;font-style:italic;">-- don't clobber</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">nofn</span> <span style="color: #0000FF;">=</span> <span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #000000;">n</span><span style="color: #0000FF;">?</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"(%d/%d, %.1f%%) "</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">i</span><span style="color: #0000FF;">,</span><span style="color: #000000;">n</span><span style="color: #0000FF;">,</span><span style="color: #000000;">i</span><span style="color: #0000FF;">/</span><span style="color: #000000;">n</span><span style="color: #0000FF;">*</span><span style="color: #000000;">100</span><span style="color: #0000FF;">}):</span><span style="color: #008000;">""</span><span style="color: #0000FF;">),</span>
<span style="color: #000000;">title</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Downloading %s%s (%s)..."</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">nofn</span><span style="color: #0000FF;">,</span><span style="color: #000000;">html_clean</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">),</span><span style="color: #000000;">why</span><span style="color: #0000FF;">})</span>
<span style="color: #000000;">show_title</span><span style="color: #0000FF;">(</span><span style="color: #000000;">title</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">curl</span><span style="color: #0000FF;">=</span><span style="color: #004600;">NULL</span> <span style="color: #008080;">then</span>
<span style="color: #7060A8;">curl_global_init</span><span style="color: #0000FF;">()</span>
<span style="color: #000000;">curl</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">curl_easy_init</span><span style="color: #0000FF;">()</span>
<span style="color: #000000;">pErrorBuffer</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">allocate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">CURL_ERROR_SIZE</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">curl_easy_setopt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">curl</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">CURLOPT_ERRORBUFFER</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">pErrorBuffer</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">curl_easy_setopt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">curl</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">CURLOPT_WRITEFUNCTION</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">write_cb</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #000000;">url</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">substitute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">url</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%3A"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">":"</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">url</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">substitute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">url</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%2A"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"*"</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">curl_easy_setopt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">curl</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">CURLOPT_URL</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">url</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: #7060A8;">open</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"wb"</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">assert</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">!=-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"cannot open "</span><span style="color: #0000FF;">&</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">curl_easy_setopt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">curl</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">CURLOPT_WRITEDATA</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">fn</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">while</span> <span style="color: #004600;">true</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">CURLcode</span> <span style="color: #000000;">res</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">curl_easy_perform</span><span style="color: #0000FF;">(</span><span style="color: #000000;">curl</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: #004600;">CURLE_OK</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: #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;">progress</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Error %s downloading file, retry?(Y/N):"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">error</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">lower</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">wait_key</span><span style="color: #0000FF;">())!=</span><span style="color: #008000;">'y'</span> <span style="color: #008080;">then</span> <span style="color: #7060A8;">abort</span><span style="color: #0000FF;">(</span><span style="color: #000000;">0</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</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;">"Y\n"</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
<span style="color: #7060A8;">close</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">refresh_cache</span> <span style="color: #0000FF;">+=</span> <span style="color: #7060A8;">timedelta</span><span style="color: #0000FF;">(</span><span style="color: #000000;">days</span><span style="color: #0000FF;">:=</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- did I mention it is slow?</span>
<span style="color: #000000;">text</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">get_text</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;">return</span> <span style="color: #000000;">text</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">global</span> <span style="color: #008080;">function</span> <span style="color: #000000;">open_category</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: #004080;">integer</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">n</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">open_download</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">&</span><span style="color: #008000;">".htm"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"http://rosettacode.org/wiki/Category:"</span><span style="color: #0000FF;">&</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">,</span><span style="color: #000000;">i</span><span style="color: #0000FF;">,</span><span style="color: #000000;">n</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">global</span> <span style="color: #008080;">function</span> <span style="color: #000000;">dewiki</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">sequence</span> <span style="color: #000000;">exclude</span><span style="color: #0000FF;">={})</span>
<span style="color: #000080;font-style:italic;">-- extract tasks from eg `<li><a href="/wiki/100_doors"`</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">tasks</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{}</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">start</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">finish</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">match</span><span style="color: #0000FF;">(</span><span style="color: #008000;">`<div class="printfooter">`</span><span style="color: #0000FF;">,</span><span style="color: #000000;">s</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">s</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">[</span><span style="color: #000000;">1</span><span style="color: #0000FF;">..</span><span style="color: #000000;">finish</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
<span style="color: #008080;">while</span> <span style="color: #004600;">true</span> <span style="color: #008080;">do</span>
<span style="color: #000000;">start</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">match</span><span style="color: #0000FF;">(</span><span style="color: #008000;">`<li><a href="/wiki/`</span><span style="color: #0000FF;">,</span><span style="color: #000000;">s</span><span style="color: #0000FF;">,</span><span style="color: #000000;">start</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">start</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</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: #000000;">start</span> <span style="color: #0000FF;">+=</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #008000;">`<li><a href="/wiki/`</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">finish</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #008000;">'"'</span><span style="color: #0000FF;">,</span><span style="color: #000000;">s</span><span style="color: #0000FF;">,</span><span style="color: #000000;">start</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">task</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">[</span><span style="color: #000000;">start</span><span style="color: #0000FF;">..</span><span style="color: #000000;">finish</span><span style="color: #0000FF;">-</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
<span style="color: #000000;">task</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">substitute_all</span><span style="color: #0000FF;">(</span><span style="color: #000000;">task</span><span style="color: #0000FF;">,{</span><span style="color: #008000;">"*"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">":"</span><span style="color: #0000FF;">},{</span><span style="color: #008000;">"%2A"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%3A"</span><span style="color: #0000FF;">})</span>
<span style="color: #000000;">tasks</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">append</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tasks</span><span style="color: #0000FF;">,</span><span style="color: #000000;">task</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">start</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">finish</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">tasks</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">global</span> <span style="color: #008080;">procedure</span> <span style="color: #000000;">curl_cleanup</span><span style="color: #0000FF;">()</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">curl</span><span style="color: #0000FF;">!=</span><span style="color: #004600;">NULL</span> <span style="color: #008080;">then</span>
<span style="color: #7060A8;">curl_easy_cleanup</span><span style="color: #0000FF;">(</span><span style="color: #000000;">curl</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">free</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pErrorBuffer</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">curl</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">NULL</span>
<span style="color: #000000;">pErrorBuffer</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">NULL</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
<!--</syntaxhighlight>-->
The task itself:
<!--<syntaxhighlight lang="phix">(notonline)-->
<span style="color: #000080;font-style:italic;">--
-- demo\rosetta\Count_examples.exw
-- ===============================
--
-- (This uses a few '&' instead of/as well as 'a', fairly obviously for everyone's sanity..)
-- Counts no of "<nowiki>{{</nowiki>he&der|" (nb not "==<nowiki>{{</nowiki>he&der|") via web api (but gets tasks via scraping).
-- Since downloading all the pages can be very slow, this uses a cache.
-- Limiting (notdone) by "Phix" fairly obviously speeds it up tenfold :-)
--</span>
<span style="color: #008080;">without</span> <span style="color: #008080;">js</span> <span style="color: #000080;font-style:italic;">-- (fairly obviously this will never ever run in a browser!)</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">include_drafts</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">true</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">sort_by_count</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">false</span><span style="color: #0000FF;">,</span>
<span style="color: #000080;font-style:italic;">-- notlang = "Phix" -- or "" (ie a zero length string) for all</span>
<span style="color: #000000;">notlang</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">""</span>
<span style="color: #008080;">include</span> <span style="color: #000000;">rosettacode_cache</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">count_tasks</span><span style="color: #0000FF;">()</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">get_file_type</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"rc_cache"</span><span style="color: #0000FF;">)!=</span><span style="color: #004600;">FILETYPE_DIRECTORY</span> <span style="color: #008080;">then</span>
<span style="color: #008080;">if</span> <span style="color: #008080;">not</span> <span style="color: #000000;">create_directory</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"rc_cache"</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
<span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"cannot create rc_cache directory"</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: #000080;font-style:italic;">-- note this lot use web scraping (as cribbed from a similar task) ...</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">tasks</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">dewiki</span><span style="color: #0000FF;">(</span><span style="color: #000000;">open_category</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Programming_Tasks"</span><span style="color: #0000FF;">))</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">include_drafts</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">tasks</span> <span style="color: #0000FF;">&=</span> <span style="color: #000000;">dewiki</span><span style="color: #0000FF;">(</span><span style="color: #000000;">open_category</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Draft_Programming_Tasks"</span><span style="color: #0000FF;">))</span>
<span style="color: #000000;">tasks</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sort</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tasks</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">notlang</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span>
<span style="color: #000080;font-style:italic;">-- filter already done in specified language</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">langurl</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"http://rosettacode.org/wiki/Category:"</span><span style="color: #0000FF;">&</span><span style="color: #000000;">notlang</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">done</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">dewiki</span><span style="color: #0000FF;">(</span><span style="color: #000000;">open_download</span><span style="color: #0000FF;">(</span><span style="color: #000000;">notlang</span><span style="color: #0000FF;">&</span><span style="color: #008000;">".htm"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">langurl</span><span style="color: #0000FF;">))</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">k</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</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;">tasks</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">ti</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">tasks</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">d</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">ti</span><span style="color: #0000FF;">,</span><span style="color: #000000;">done</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #008080;">not</span> <span style="color: #000000;">d</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">k</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">1</span>
<span style="color: #000000;">tasks</span><span style="color: #0000FF;">[</span><span style="color: #000000;">k</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">ti</span>
<span style="color: #008080;">else</span>
<span style="color: #000000;">done</span><span style="color: #0000FF;">[</span><span style="color: #000000;">d</span><span style="color: #0000FF;">..</span><span style="color: #000000;">d</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</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: #000000;">tasks</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">tasks</span><span style="color: #0000FF;">[</span><span style="color: #000000;">1</span><span style="color: #0000FF;">..</span><span style="color: #000000;">k</span><span style="color: #0000FF;">]</span>
<span style="color: #000000;">done</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{}</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #7060A8;">progress</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%d tasks found\n"</span><span style="color: #0000FF;">,{</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tasks</span><span style="color: #0000FF;">)})</span>
<span style="color: #000080;font-style:italic;">-- ... whereas the individual tasks use the web api instead (3x smaller/faster)</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">total_count</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">task_counts</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tasks</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;">tasks</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">ti</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">tasks</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">],</span>
<span style="color: #000000;">url</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"http://rosettacode.org/mw/index.php?title=%s&action=raw"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">ti</span><span style="color: #0000FF;">}),</span>
<span style="color: #000000;">contents</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">open_download</span><span style="color: #0000FF;">(</span><span style="color: #000000;">ti</span><span style="color: #0000FF;">&</span><span style="color: #008000;">".raw"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">url</span><span style="color: #0000FF;">),</span>
<span style="color: #000000;">prev</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">""</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">curr</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">count</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">start</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">while</span> <span style="color: #004600;">true</span> <span style="color: #008080;">do</span>
<span style="color: #000000;">start</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">match</span><span style="color: #0000FF;">(</span><span style="color: #008000;">`<nowiki>{{</nowiki>hea`</span><span style="color: #0000FF;">&</span><span style="color: #008000;">`der|`</span><span style="color: #0000FF;">,</span><span style="color: #000000;">contents</span><span style="color: #0000FF;">,</span><span style="color: #000000;">start</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">start</span><span style="color: #0000FF;">=</span><span style="color: #000000;">0</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: #000080;font-style:italic;">--
-- skip duplicates/we also have to cope with eg
-- ==<nowiki>{{</nowiki>he&der|Python<nowiki>}}</nowiki>== \
-- ===<nowiki>{{</nowiki>he&der|Python<nowiki>}}</nowiki> Original=== } count
-- ===<nowiki>{{</nowiki>he&der|Python<nowiki>}}</nowiki> Succinct=== } once
-- ===<nowiki>{{</nowiki>he&der|Python<nowiki>}}</nowiki> Recursive === /
-- ==<nowiki>{{</nowiki>he&der|Mathematica<nowiki>}}</nowiki> / <nowiki>{{</nowiki>he&der|Wolfram Language<nowiki>}}</nowiki>== \
-- ==<nowiki>{{</nowiki>he&der|Icon<nowiki>}}</nowiki> and <nowiki>{{</nowiki>he&der|Unicon<nowiki>}}</nowiki>== } count
-- == <nowiki>{{</nowiki>he&der|Icon<nowiki>}}</nowiki> and <nowiki>{{</nowiki>he&der|Unicon<nowiki>}}</nowiki> == / both
-- == <nowiki>{{</nowiki>he&der|Java<nowiki>}}</nowiki>==
-- etc. Note however that this /does/ count eg
-- ===<nowiki>{{</nowiki>he&der|Applesoft BASIC<nowiki>}}</nowiki>=== \
-- ===<nowiki>{{</nowiki>he&der|BASIC256<nowiki>}}</nowiki>=== } count
-- ===<nowiki>{{</nowiki>he&der|Commodore BASIC<nowiki>}}</nowiki>=== } 'em
-- ===<nowiki>{{</nowiki>he&der|IS-BASIC<nowiki>}}</nowiki>=== } all
-- ===<nowiki>{{</nowiki>he&der|Sinclair ZX81 BASIC<nowiki>}}</nowiki>=== /
--</span>
<span style="color: #000000;">curr</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">contents</span><span style="color: #0000FF;">[</span><span style="color: #000000;">start</span><span style="color: #0000FF;">..</span><span style="color: #7060A8;">match</span><span style="color: #0000FF;">(</span><span style="color: #008000;">`<nowiki>}}</nowiki>`</span><span style="color: #0000FF;">,</span><span style="color: #000000;">contents</span><span style="color: #0000FF;">,</span><span style="color: #000000;">start</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)]</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">curr</span><span style="color: #0000FF;">!=</span><span style="color: #000000;">prev</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">count</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: #000000;">prev</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">curr</span>
<span style="color: #000000;">start</span> <span style="color: #0000FF;">+=</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #008000;">`<nowiki>{{</nowiki>hea`</span><span style="color: #0000FF;">&</span><span style="color: #008000;">`der|`</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">sort_by_count</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">task_counts</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">count</span>
<span style="color: #008080;">elsif</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">notlang</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">or</span> <span style="color: #000000;">i</span><span style="color: #0000FF;"><=</span><span style="color: #000000;">2</span> <span style="color: #008080;">or</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">>=</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tasks</span><span style="color: #0000FF;">)-</span><span style="color: #000000;">1</span> <span style="color: #008080;">or</span> <span style="color: #7060A8;">mod</span><span style="color: #0000FF;">(</span><span style="color: #000000;">i</span><span style="color: #0000FF;">,</span><span style="color: #000000;">200</span><span style="color: #0000FF;">)=</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span>
<span style="color: #7060A8;">progress</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%s: %d\n"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">html_clean</span><span style="color: #0000FF;">(</span><span style="color: #000000;">ti</span><span style="color: #0000FF;">),</span><span style="color: #000000;">count</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #000000;">total_count</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">count</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">get_key</span><span style="color: #0000FF;">()=</span><span style="color: #000000;">#1B</span> <span style="color: #008080;">then</span> <span style="color: #7060A8;">progress</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"escape keyed\n"</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">exit</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: #000000;">curl_cleanup</span><span style="color: #0000FF;">()</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">sort_by_count</span> <span style="color: #008080;">then</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">tags</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">custom_sort</span><span style="color: #0000FF;">(</span><span style="color: #000000;">task_counts</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">tagset</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tasks</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: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tags</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">to</span> <span style="color: #000000;">1</span> <span style="color: #008080;">by</span> <span style="color: #0000FF;">-</span><span style="color: #000000;">1</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">ti</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">tags</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span>
<span style="color: #7060A8;">progress</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"%s: %d\n"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">html_clean</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tasks</span><span style="color: #0000FF;">[</span><span style="color: #000000;">ti</span><span style="color: #0000FF;">]),</span><span style="color: #000000;">task_counts</span><span style="color: #0000FF;">[</span><span style="color: #000000;">ti</span><span style="color: #0000FF;">]})</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">total_count</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #7060A8;">progress</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Total: %d\n"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">count_tasks</span><span style="color: #0000FF;">()})</span>
<!--</syntaxhighlight>-->
{{out}} (as of 30/2/22, showing first two, every 200th, and last two)
<pre>
1523 tasks found
10001th prime: 33
100 doors: 337
Chowla numbers: 46
Exactly three adjacent 3 in lists: 27
Imaginary base numbers: 21
Monte Carlo methods: 87
Prime numbers which contain 123: 23
Smallest number k such that k+2^m is composite for all m less than k: 5
Trabb Pardo-Knuth algorithm: 83
Zig-zag matrix: 113
Zumkeller numbers: 36
Total: 88455
</pre>
=={{header|PicoLisp}}==
<
(client "rosettacode.org" 80
Line 1,965 ⟶ 2,153:
(unless (sub? "." (till "<" T))
(inc 'Cnt) ) )
(out NIL (prinl (ht:Pack Task) ": " Cnt)) ) ) ) ) )</
Output (05may10):
<pre>100 doors: 79
Line 1,974 ⟶ 2,162:
Abstract type: 29
...</pre>
=={{header|PureBasic}}==
<
If value = 0
MessageRequester("Error", msg)
Line 2,040 ⟶ 2,227:
Input()
CloseConsole()
EndIf</
Sample output:
<pre>100 doors: 224 examples
Line 2,058 ⟶ 2,245:
=={{header|Python}}==
<
import xml.dom.minidom
r = Request(
'https://www.rosettacode.org/mw/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500&format=xml',
headers={'User-Agent': 'Mozilla/5.0'})
x = urlopen(r)
tasks = []
for i in xml.dom.minidom.parseString(x.read()).getElementsByTagName(
t = i.getAttribute('title').replace(
headers={'User-Agent': 'Mozilla/5.0'})
y = urlopen(r)
tasks.append( y.read().lower().count(b'{{header|') )
print(t.replace('_', ' ') + f': {tasks[-1]} examples.')
print
</syntaxhighlight>
===Using Semantic MediaWiki===
{{libheader|Requests}}
Here we use the [https://www.semantic-mediawiki.org/wiki/Help:API:ask ask] API provided by the [https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki Semantic MediaWiki extension] to query page [https://www.semantic-mediawiki.org/wiki/Help:Properties_and_types properties] rather than parse page content, producing subtly different counts to some other solutions. Maybe too different for this task.
We only count task examples that have a corresponding category page AND that page has the "Is Language" property set to True. In other words, <code>Implemented In</code> + <code>Not Implemented In</code> + <code>Omitted From</code> is always equal to the total number of languages.
<syntaxhighlight lang="python">"""Count Rosetta Code tasks implementations using the Semantic MediaWiki API.
Works with Python >= 3.7."""
import json
import logging
from dataclasses import dataclass
from dataclasses import field
from datetime import datetime
from typing import Any
from typing import Dict
from typing import List
from typing import Optional
from typing import Set
from typing import Tuple
import requests
from requests.adapters import HTTPAdapter
from requests.adapters import Retry
logging.basicConfig(level=logging.WARN)
# See https://www.semantic-mediawiki.org/wiki/Help:API:ask
_SM_ASK: Dict[str, str] = {
"action": "ask",
"format": "json",
"formatversion": "2",
"api_version": "3",
}
_SM_ASK_REQUEST_BLOCK_SIZE = 500
@dataclass(frozen=True)
class Page:
# fulltext is the page's title, not the page content.
fulltext: str
fullurl: str
namespace: int
exists: str
displaytitle: str
@dataclass(frozen=True, eq=False)
class Lang(Page):
def __eq__(self, other: object) -> bool:
if isinstance(other, Lang):
return self.fullurl == other.fullurl
elif isinstance(other, str):
return self.fullurl == other
return False
def __hash__(self) -> int:
return hash(self.fullurl)
def unimplemented(self, tasks: Set["Task"]) -> Set["Task"]:
return {task for task in tasks if self.fullurl not in task.exclude}
def omitted_from(self, tasks: Set["Task"]) -> Set["Task"]:
return {task for task in tasks if self.fullurl in task.omitted_from}
@dataclass(frozen=True)
class Task(Page):
title: str
implemented_in: Set[Lang] = field(repr=False, compare=False)
omitted_from: Set[Lang] = field(repr=False, compare=False)
exclude: Set[Lang] = field(repr=False, compare=False)
def not_implemented_in(self, langs: Set[Lang]) -> Set[Lang]:
return langs.difference(self.exclude)
@dataclass
class TaskResponseBlock:
tasks: List[Task]
continue_offset: Optional[int] = None
@dataclass
class LanguageResponseBlock:
langs: List[Lang]
continue_offset: Optional[int] = None
def sm_ask_category(
session: requests.Session,
url: str,
category: str,
limit: int,
offset: int,
known_langs: Set[Lang],
) -> TaskResponseBlock:
query_params = {
**_SM_ASK,
"query": (
f"[[Category:{category}]]"
"|?Implemented in language"
"|?Omitted from language"
f"|limit={limit}"
f"|offset={offset}"
),
}
# Display some progress
log(f"ask [[Category:{category}]] offset={offset}")
response = session.get(url, params=query_params)
response.raise_for_status()
data = response.json()
handle_warnings_and_errors(data)
return _transform_implemented_in_response_data(data, known_langs)
def sm_ask_tasks(
session: requests.Session,
url: str,
limit: int,
offset: int,
known_langs: Set[Lang],
):
return sm_ask_category(
session, url, "Programming Tasks", limit, offset, known_langs
)
def sm_ask_drafts(
session: requests.Session,
url: str,
limit: int,
offset: int,
known_langs: Set[Lang],
):
return sm_ask_category(
session, url, "Draft Programming Tasks", limit, offset, known_langs
)
def sm_ask_languages(
session: requests.Session,
url: str,
limit: int,
offset: int,
) -> LanguageResponseBlock:
query_params = {
**_SM_ASK,
"query": (
"[[Is language::+]]"
"|?Implemented in language"
"|?Omitted from language"
f"|limit={limit}"
f"|offset={offset}"
),
}
# Display some progress
log(f"ask [[Is language::+]] offset={offset}")
response = session.get(url, params=query_params)
response.raise_for_status()
data = response.json()
handle_warnings_and_errors(data)
return _transform_language_response_data(data)
def sm_ask_all_tasks(
session: requests.Session, url: str, known_langs: Set[Lang]
) -> List[Task]:
block = sm_ask_tasks(
session,
url,
limit=_SM_ASK_REQUEST_BLOCK_SIZE,
offset=0,
known_langs=known_langs,
)
tasks = block.tasks
while block.continue_offset:
block = sm_ask_tasks(
session,
url,
limit=_SM_ASK_REQUEST_BLOCK_SIZE,
offset=block.continue_offset,
known_langs=known_langs,
)
tasks.extend(block.tasks)
return tasks
def sm_ask_all_drafts(
session: requests.Session, url: str, known_langs: Set[Lang]
) -> List[Task]:
block = sm_ask_drafts(
session,
url,
limit=_SM_ASK_REQUEST_BLOCK_SIZE,
offset=0,
known_langs=known_langs,
)
tasks = block.tasks
while block.continue_offset:
block = sm_ask_drafts(
session,
url,
limit=_SM_ASK_REQUEST_BLOCK_SIZE,
offset=block.continue_offset,
known_langs=known_langs,
)
tasks.extend(block.tasks)
return tasks
def sm_ask_all_languages(session: requests.Session, url: str) -> List[Lang]:
block = sm_ask_languages(
session,
url,
limit=_SM_ASK_REQUEST_BLOCK_SIZE,
offset=0,
)
langs = block.langs
while block.continue_offset:
block = sm_ask_languages(
session,
url,
limit=_SM_ASK_REQUEST_BLOCK_SIZE,
offset=block.continue_offset,
)
langs.extend(block.langs)
return langs
def _transform_implemented_in_response_data(
data: Any, known_langs: Set[Lang]
) -> TaskResponseBlock:
tasks: List[Task] = []
for result in data["query"]["results"]:
for task_title, task_page in result.items():
# We're excluding implementations that don't have a corresponding
# category page with an "Is Language" property.
implemented_in = {
Lang(**lang)
for lang in task_page["printouts"]["Implemented in language"]
}.intersection(known_langs)
omitted_from = (
{
Lang(**lang)
for lang in task_page["printouts"]["Omitted from language"]
}
.intersection(known_langs)
.difference(implemented_in)
)
tasks.append(
Task(
title=task_title,
implemented_in=implemented_in,
omitted_from=omitted_from,
fulltext=task_page["fulltext"],
fullurl=task_page["fullurl"],
namespace=task_page["namespace"],
exists=task_page["exists"],
displaytitle=task_page["displaytitle"],
exclude=implemented_in.union(omitted_from),
)
)
return TaskResponseBlock(
tasks=tasks, continue_offset=data.get("query-continue-offset", None)
)
def _transform_language_response_data(data: Any) -> LanguageResponseBlock:
langs: List[Lang] = []
for result in data["query"]["results"]:
for _, task_page in result.items():
langs.append(
Lang(
fulltext=task_page["fulltext"],
fullurl=task_page["fullurl"],
namespace=task_page["namespace"],
exists=task_page["exists"],
displaytitle=task_page["displaytitle"],
)
)
return LanguageResponseBlock(
langs=langs, continue_offset=data.get("query-continue-offset", None)
)
def get_session() -> requests.Session:
"""Setup a requests.Session with retries."""
retry_strategy = Retry(
total=5,
status_forcelist=[429, 500, 502, 503, 504],
allowed_methods=["HEAD", "GET", "OPTIONS"],
)
adapter = HTTPAdapter(max_retries=retry_strategy)
session = requests.Session()
session.mount("https://", adapter)
session.mount("http://", adapter)
return session
def log(msg: str) -> None:
print(f"{datetime.now().isoformat(' ', 'seconds')}: {msg}")
def handle_warnings_and_errors(data: Any) -> None:
if data.get("errors"):
for error in data["errors"]:
logging.error(json.dumps(error))
# legacy format
if data.get("error"):
logging.error(json.dumps(data["error"]))
if data.get("warnings"):
for warning in data["warnings"]:
logging.warning(json.dumps(warning))
def count_examples(url: str, n: int = 30) -> None:
"""Print a table to stdout containing implementation counts for the first
`n` tasks, sorted by number implementations (most to least)."""
session = get_session()
langs = set(sm_ask_all_languages(session, url))
tasks = sm_ask_all_tasks(session, url, langs)
drafts = sm_ask_all_drafts(session, url, langs)
all_tasks = [*tasks, *drafts]
# Map of task to (implemented in, not implemented in, omitted from)
counts: Dict[Task, Tuple[int, int, int]] = {}
# Running total of examples for all tasks. Where a language has multiple examples
# for a single tasks, we only count one example.
total: int = 0
for task in all_tasks:
total += len(task.implemented_in)
counts[task] = (
len(task.implemented_in),
len(task.not_implemented_in(langs)),
len(task.omitted_from),
)
# Pretty print
top = sorted(counts.items(), key=lambda it: it[1][0], reverse=True)[:n]
pad = max([len(task.fulltext) for task, _ in top])
print("\nKnown languages:", len(langs))
print("Total tasks:", len(all_tasks))
print("Total examples:", total)
print(f"{'Task':>{pad}} | Implemented In | Not Implemented In | Omitted From")
print("-" * (pad + 1), "+", "-" * 16, "+", "-" * 20, "+", "-" * 13, sep="")
for task, _counts in top:
implemented_in, not_implemented_in, omitted_from = _counts
print(
f"{task.fulltext:>{pad}} |"
f"{implemented_in:>15} |"
f"{not_implemented_in:>19} |"
f"{omitted_from:>13}"
)
if __name__ == "__main__":
import argparse
URL = "https://rosettacode.org/w/api.php"
parser = argparse.ArgumentParser(description="Count tasks on Rosetta Code.")
parser.add_argument(
"--rows",
"-n",
type=int,
default=30,
dest="n",
help="number of rows to display in the output table (default: 30)",
)
parser.add_argument(
"--url",
default=URL,
help=f"target MediaWiki URL (default: {URL})",
)
args = parser.parse_args()
count_examples(args.url, args.n)</syntaxhighlight>
{{out}}
<pre>
2023-02-11 11:09:34: ask [[Is language::+]] offset=0
2023-02-11 11:09:35: ask [[Is language::+]] offset=500
2023-02-11 11:09:36: ask [[Category:Programming Tasks]] offset=0
2023-02-11 11:09:47: ask [[Category:Programming Tasks]] offset=500
2023-02-11 11:10:04: ask [[Category:Programming Tasks]] offset=1000
2023-02-11 11:10:12: ask [[Category:Draft Programming Tasks]] offset=0
Known languages: 890
Total tasks: 1602
Total examples: 91075
Task | Implemented In | Not Implemented In | Omitted From
--------------------------------+----------------+--------------------+-------------
Hello world/Text | 498 | 392 | 0
99 bottles of beer | 371 | 519 | 0
100 doors | 334 | 555 | 1
FizzBuzz | 325 | 565 | 0
Fibonacci sequence | 308 | 582 | 0
Factorial | 302 | 588 | 0
Comments | 297 | 592 | 1
A+B | 293 | 597 | 0
Empty program | 274 | 616 | 0
Function definition | 254 | 634 | 2
Loops/Infinite | 254 | 635 | 1
Loops/For | 248 | 641 | 1
Loops/While | 244 | 645 | 1
Arrays | 237 | 652 | 1
Ackermann function | 234 | 653 | 3
Reverse a string | 231 | 657 | 2
Conditional structures | 223 | 666 | 1
Arithmetic/Integer | 213 | 677 | 0
Greatest common divisor | 213 | 677 | 0
Array concatenation | 208 | 682 | 0
Greatest element of a list | 208 | 682 | 0
Even or odd | 207 | 683 | 0
Loops/Downward for | 207 | 683 | 0
Sieve of Eratosthenes | 203 | 687 | 0
Increment a numerical string | 202 | 688 | 0
Integer comparison | 202 | 688 | 0
Repeat a string | 199 | 691 | 0
Boolean values | 198 | 691 | 1
Loops/For with a specified step | 198 | 691 | 1
Copy a string | 196 | 693 | 1
</pre>
=={{header|R}}==
Line 2,075 ⟶ 2,716:
{{libheader|RCurl}}
<syntaxhighlight lang="r">
library(XML)
library(RCurl)
Line 2,090 ⟶ 2,731:
}
cat("Total: ", length(unlist(counts)), "examples\n")
</syntaxhighlight>
=={{header|Racket}}==
<
#lang racket
Line 2,120 ⟶ 2,761:
(printf "~a: ~a\n" task s)
s))
</syntaxhighlight>
=={{header|Raku}}==
(formerly Perl 6)
{{works with|Rakudo|2018.12}}
Retrieves counts for both Tasks and Draft Tasks. Save / Display results as a sortable wikitable rather than a static list. Click on a column header to sort on that column. To do a secondary sort, hold down the shift key and click on a second column header. Tasks have a gray (default) background, Draft Tasks have a yellow background.
This example tracks the top 50 languages by number of examples completed but only generates reports in tiers of 10. More than 10 gets too heavy and difficult to navigate.
Feed it parameters to control behaviour:
* :nf or :no-fetch to use saved information to generate the different reports. Recommended for the second, third, fourth, whatever report you are generating at any one time as fetching from the site is ''by far'' the most time consuming part.
* :t=1 (or :tier=1). :t=2, :t=3, whatever, up to :t=5 to control which tier of results to generate.
Language names with spaces will have underscores inserted to make the results uniform. Some oddball languages (lookin' at you Icon and Unicon) make it very difficult to obtain accurate results. The whole "conglomerate all of the Basic dialects together" movement of a few years ago also complicates things, but this should be pretty close.
For a full output, see [[Rosetta_Code/Count_examples/Full_list|Top tier]], [[Rosetta_Code/Count_examples/Full_list/Tier_2|Second tier]], [[Rosetta_Code/Count_examples/Full_list/Tier_3|Third tier]], [[Rosetta_Code/Count_examples/Full_list/Tier_4|Fourth tier]]
<syntaxhighlight lang="raku" line>use HTTP::UserAgent;
use URI::Escape;
use JSON::Fast;
use Lingua::EN::Numbers :short;
unit sub MAIN ( Bool :nf(:$no-fetch) = False, :t(:$tier) = 1 );
# Friendlier descriptions for task categories
my %cat = (
'Programming_Tasks' => 'Task',
'Draft_Programming_Tasks' => 'Draft'
);
my $client = HTTP::UserAgent.new;
$client.timeout = 10;
my $url = 'https://rosettacode.org/w';
my $hashfile = './RC_Task_count.json';
my $tablefile = "./RC_Task_count-{$tier}.txt";
my %tasks;
my @places = <① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ ⑬ ⑭ ⑮ ⑯ ⑰ ⑱ ⑲ ⑳ ㉑ ㉒ ㉓ ㉔ ㉕
㉖ ㉗ ㉘ ㉙ ㉚ ㉛ ㉜ ㉝ ㉞ ㉟ ㊱ ㊲ ㊳ ㊴ ㊵ ㊶ ㊷ ㊸ ㊹ ㊺ ㊺ ㊻ ㊼ ㊽ ㊾ ㊿>;
# clear screen
run($*DISTRO.is-win ?? 'cls' !! 'clear') unless $no-fetch;
my %counts =
mediawiki-query(
$url, 'pages',
:generator<categorymembers>,
:gcmtitle<Category:Programming Languages>,
:gcmlimit<350>,
:rawcontinue(),
:prop<categoryinfo>
)
.map({ .<title>.subst(/^'Category:'/, '') => .<categoryinfo><pages> || 0 });
my $per-tier = 10;
my $which = (^$per-tier) »+» $per-tier * ($tier - 1);
my @top-n = %counts.sort( {-.value, .key} )[|$which].map: *.key.trans(' ' => '_');
# dump a copy to STDOUT, mostly for debugging purposes
say "<pre>{tc $tier.&ord-n} {$per-tier.&card} programming languages by number of task examples completed:";
say ' ', join ' ', .map( {("{(@places[|$which])[$_]} {@top-n[$_]}").fmt("%-15s")} ) for (^@top-n).batch(5);
say "</pre>\n";
unless $no-fetch {
note 'Retrieving task information...';
mkdir('./pages') unless './pages'.IO.e;
@top-n = %counts.sort( {-.value, .key} )[^@places].map: *.key.trans(' ' => '_');;
for %cat.keys.sort -> $cat {
mediawiki-query(
$url, 'pages',
:generator<categorymembers>,
:gcmtitle("Category:$cat"),
:gcmlimit<350>,
:rawcontinue(),
:prop<title>
).map({
my $page;
my $response;
loop {
$response = $client.get("{ $url }/index.php?title={ uri-escape .<title> }&action=raw");
if $response.is-success {
$page = $response.content;
last;
} else {
redo;
}
}
"./pages/{ uri-escape .<title>.subst(/' '/, '_', :g) }".IO.spurt($page);
my $lc = $page.lc.trans(' ' => '_');
my $count = +$lc.comb(/ ^^'==' <-[\n=]>* '{{header|' <-[}]>+? '}}==' \h* $$ /);
%tasks{.<title>} = {'cat' => %cat{$cat}, :$count};
%tasks{.<title>}<top-n> = (^@top-n).map( {
($lc.contains("==\{\{header|{@top-n[$_].lc}}}") or
# Deal with 3 part headers - {{header|F_Sharp|F#}}, {{header|C_Sharp|C#}}, etc.
$lc.contains("==\{\{header|{@top-n[$_].lc}|") or
# Icon and Unicon are their own special flowers
$lc.contains("}}_and_\{\{header|{@top-n[$_].lc}}}==") or
# Language1 / Language2 for shared entries (e.g. C / C++)
$lc.contains(rx/'}}''_'*'/''_'*'{{header|'$(@top-n[$_].lc)'}}=='/)) ??
(@places[$_]) !!
# Check if the task was omitted
$lc.contains("\{\{omit_from|{@top-n[$_].lc}") ?? 'O' !!
# The task is neither done or omitted
' '
} ).join;
print clear, 1 + $++, ' ', %cat{$cat}, ' ', .<title>;
})
}
print clear;
note "\nTask information saved to local file: {$hashfile.IO.absolute}";
$hashfile.IO.spurt(%tasks.&to-json);
}
# Load information from local file
%tasks = $hashfile.IO.e ?? $hashfile.IO.slurp.&from-json !! ( );
@top-n = %counts.sort( {-.value, .key} )[|$which].map: *.key.trans(' ' => '_');
# Convert saved task info to a table
note "\nBuilding table...";
my $count = +%tasks;
my $taskcnt = +%tasks.grep: *.value.<cat> eq %cat<Programming_Tasks>;
my $draftcnt = $count - $taskcnt;
my $total = sum %tasks{*}»<count>;
# Dump table to a file
my $out = open($tablefile, :w) or die "$!\n";
$out.say: "<pre>{tc $tier.&ord-n} {$per-tier.&card} programming languages by number of task examples completed:";
$out.say: ' ', join ' ', .map( {("{(@places[|$which])[$_]} {@top-n[$_]}").fmt("%-15s")} ) for (^@top-n).batch(5);
$out.say: "</pre>\n\n<div style=\"height:40em;overflow:scroll;\">";
# Add table boilerplate and caption
$out.say:
'{|class="wikitable sortable"', "\n",
"|+ As of { DateTime.new(time) } :: Tasks: { $taskcnt } ::<span style=\"background-color:#ffd\"> Draft Tasks:",
"{ $draftcnt } </span>:: Total Tasks: { $count } :: Total Examples: { $total }\n",
"!Count!!Task!!{(@places[|$which]).join('!!')}"
;
# Sort tasks by count then add row
for %tasks.sort: { [-.value<count>, .key] } -> $task {
$out.say:
( $task.value<cat> eq 'Draft'
?? "|- style=\"background-color: #ffc\"\n"
!! "|-\n"
),
"| { $task.value<count> }\n",
( $task.key ~~ /\d/
?? "|data-sort-value=\"{ $task.key.&naturally }\"| [[{uri-escape $task.key}|{$task.key}]]\n"
!! "| [[{uri-escape $task.key}|{$task.key}]]\n"
),
"|{ $task.value<top-n>.comb[|$which].join('||') }"
}
$out.say( "|}\n</div>" );
$out.close;
note "Table file saved as: {$tablefile.IO.absolute}";
sub mediawiki-query ($site, $type, *%query) {
my $url = "$site/api.php?" ~ uri-query-string(
:action<query>, :format<json>, :formatversion<2>, |%query);
my $continue = '';
gather loop {
my $response = $client.get("$url&$continue");
my $data = from-json($response.content);
take $_ for $data.<query>.{$type}.values;
$continue = uri-query-string |($data.<query-continue>{*}».hash.hash or last);
}
}
sub uri-query-string (*%fields) { %fields.map({ "{.key}={uri-escape .value}" }).join("&") }
sub naturally ($a) { $a.lc.subst(/(\d+)/, ->$/ {0~(65+$0.chars).chr~$0},:g) }
sub clear { "\r" ~ ' ' x 116 ~ "\r" }</syntaxhighlight>
{{out|Abridged output}}
<pre>Top ten programming language by number of task examples completed:
① Go
② Perl 6
③ Kotlin
④ Python
⑤ Phix
⑥ Racket
⑦ Perl
⑧ C
⑨ Julia
⑩ Tcl
</pre>
<div style="height:40em;overflow:scroll;">
{|class="wikitable sortable"
|+ As of 2019-01-21T22:41:28Z :: Tasks: 924 ::<span style="background-color:#ffd"> Draft Tasks:215 </span>:: Total Tasks: 1139 :: Total Examples: 59984
!Count!!Task!!①!!②!!③!!④!!⑤!!⑥!!⑦!!⑧!!⑨!!⑩
|-
| 405
| [[Hello%20world%2FText|Hello world/Text]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|-
| 283
|data-sort-value="0C99 bottles of beer"| [[99%20Bottles%20of%20Beer|99 Bottles of Beer]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|-
| 276
| [[FizzBuzz|FizzBuzz]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|-
| 273
|data-sort-value="0D100 doors"| [[100%20doors|100 doors]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|-
| 251
| [[Fibonacci%20sequence|Fibonacci sequence]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|-
| 246
| [[Comments|Comments]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|-
| 239
| [[Factorial|Factorial]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|-
| 223
| [[Empty%20program|Empty program]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|-
| 222
| [[A%2BB|A+B]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|-
| 214
| [[Function%20definition|Function definition]]
|①||②||③||④||⑤||⑥||⑦||⑧||⑨||⑩
|}
</div>
=={{header|Ring}}==
<
# Project: Rosetta Code/Count examples
Line 2,179 ⟶ 3,071:
end
return sum
</syntaxhighlight>
Output:
<pre>
Line 2,210 ⟶ 3,102:
{{libheader|REXML}}
First, a RosettaCode module, saved as <tt>rosettacode.rb</tt>:
<
require 'rexml/document'
Line 2,260 ⟶ 3,152:
end
end</
Then, we implement the task with:
<
total_examples = 0
Line 2,275 ⟶ 3,167:
puts
puts "Total: #{total_examples}"</
=={{header|Run BASIC}}==
<syntaxhighlight lang="runbasic">html "<table border=1><tr bgcolor=wheat align=center><td>Num</td><td>Task</td><td>Examples</td></tr>"
a$ = httpGet$("http://rosettacode.org/wiki/Category:Programming_Tasks")
a$ = word$(a$,1,"</table></div>")
i = instr(a$,"<a href=""/wiki/")
i = instr(a$,"<a href=""/wiki/",i+1)
while i > 0
count = count + 1
i = instr(a$,"<a href=""/wiki/",i+1)
j = instr(a$,">",i+5)
a1$ = mid$(a$,i+15,j-i)
taskId$ = word$(a1$,1,"""")
task$ = word$(a1$,3,"""")
url$ = "http://rosettacode.org/wiki/";taskId$
a2$ = httpGet$(url$)
ii = instr(a2$,"<span class=""tocnumber"">")
jj = 0
while ii > 0
jj = ii
ii = instr(a2$,"<span class=""tocnumber"">",ii+10)
wend
if jj = 0 then
examp = 0
else
kk = instr(a2$,"<",jj+24)
examp = int(val(mid$(a2$,jj+24,kk-jj-24)))
end if
html "<tr><td align=right>";count;"</td><td>";task$;"</td><td align=right>";examp;"</td></tr>"
totExamp = totExamp + examp
wend
html "<tr bgcolor=wheat><td>**</td><td>** Total **</td><td align=right>";totExamp;"</td></tr></table>"
end</syntaxhighlight>
<table border=1><tr bgcolor=wheat align=center><td>Num</td><td>Task</td><td>Examples</td></tr>
<tr><td align=right>1</td><td>100 doors</td><td align=right>165</td></tr>
<tr><td align=right>2</td><td>24 game</td><td align=right>56</td></tr>
<tr><td align=right>3</td><td>24 game/Solve</td><td align=right>34</td></tr>
<tr><td align=right>4</td><td>99 Bottles of Beer</td><td align=right>192</td></tr>
<tr><td align=right>5</td><td>A+B</td><td align=right>129</td></tr>
<tr><td align=right>6</td><td>Abstract type</td><td align=right>51</td></tr>
<tr><td align=right>7</td><td>Accumulator factory</td><td align=right>65</td></tr>
<tr><td align=right>8</td><td>Ackermann function</td><td align=right>132</td></tr>
<tr><td align=right>9</td><td>Active Directory/Connect</td><td align=right>13</td></tr>
<tr><td align=right>10</td><td>Active Directory/Search for a user</td><td align=right>13</td></tr>
<tr><td align=right>11</td><td>Active object</td><td align=right>22</td></tr>
<tr><td align=right>12</td><td>Add a variable to a class instance at runtime</td><td align=right>37</td></tr>
<tr><td align=right>...</td><td>...</td><td align=right>...</td></tr>
<tr><td align=right>655</td><td>Y combinator</td><td align=right>53</td></tr>
<tr><td align=right>656</td><td>Yahoo! search interface</td><td align=right>16</td></tr>
<tr><td align=right>657</td><td>Yin and yang</td><td align=right>38</td></tr>
<tr><td align=right>658</td><td>Zebra puzzle</td><td align=right>12</td></tr>
<tr><td align=right>659</td><td>Zeckendorf number representation</td><td align=right>18</td></tr>
<tr><td align=right>660</td><td>Zig-zag matrix</td><td align=right>65</td></tr>
<tr bgcolor=wheat><td>**</td><td>** Total **</td><td align=right>28611</td></tr></table>
=={{header|Rust}}==
<
extern crate url;
extern crate rustc_serialize;
Line 2,389 ⟶ 3,336:
let json: Json = query_api(query).unwrap();
count_number_examples(&json, task.page_id).unwrap()
}</
The function is then run using the following:
<
extern crate count_examples;
fn main() {
Line 2,400 ⟶ 3,347:
println!("Task: {} has {} examples", task.title, count);
}
}</
=={{header|Scala}}==
{{libheader|Scala}}<
object TaskCount extends App {
Line 2,482 ⟶ 3,374:
counts map (_.apply) map Function.tupled("%s: %d examples." format (_, _)) foreach println
println("\nTotal: %d examples." format (counts map (_.apply._2) sum))
}</
=={{header|Sidef}}==
{{trans|Perl}}
<
var site = 'http://rosettacode.org';
Line 2,498 ⟶ 3,390:
var count = lwp.get("#{site}/wiki/#{slug}").decoded_content.count(/toclevel-1/g);
say "#{m[0]}: #{count} examples";
}</
{{out}}
<pre>
100 doors:
99 Bottles of Beer: 287 examples
A+B: 228 examples
...
</pre>
Line 2,514 ⟶ 3,408:
=={{header|Tcl}}==
{{tcllib|json}}
<
package require http
package require json
Line 2,578 ⟶ 3,472:
}
puts "\nTotal: $total examples"</
=={{header|TUSCRIPT}}==
<
url="http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500&format=xml"
data=REQUEST (url)
Line 2,620 ⟶ 3,514:
FILE "tasks" = line
</syntaxhighlight>
Output in file "tasks":
<pre style='height:30ex;overflow:scroll'>
Line 2,639 ⟶ 3,533:
Zig-zag matrix=46 members
2011-01-15 03:41:30: 455 Programing Tasks: 16009 solutions
</pre>
=={{header|UNIX Shell}}==
{{works with|Bourne Again Shell}}
{{trans|Python}}
Requires the <tt>curl</tt> and <tt>jq</tt> command-line utilities.
<syntaxhighlight lang="sh">#!/usr/bin/env bash
SITE=https://www.rosettacode.org
API=$SITE/mw/api.php
PAGES=$SITE/mw/index.php
query="$API?action=query"
query+=$(printf '&%s' \
list=categorymembers \
cmtitle=Category:Programming_Tasks \
cmlimit=500)
total=0
while read title; do
t=${title// /_}
tasks=$(curl -s "$PAGES?title=$t&action=raw" \
| grep -c '{{header|')
printf '%s: %d examples.\n' "$title" "$tasks"
let total+=tasks
done < <(curl -s "$query&format=json" \
| jq -r '.query.categorymembers[].title')
printf '\nTotal: %d examples.\n' "$total"</syntaxhighlight>
=={{header|Wren}}==
{{libheader|libcurl}}
{{libheader|Wren-pattern}}
An embedded program so we can use the libcurl library.
<syntaxhighlight lang="wren">/* Rosetta_Code_Count_examples.wren */
import "./pattern" for Pattern
var CURLOPT_URL = 10002
var CURLOPT_FOLLOWLOCATION = 52
var CURLOPT_WRITEFUNCTION = 20011
var CURLOPT_WRITEDATA = 10001
foreign class Buffer {
construct new() {} // C will allocate buffer of a suitable size
foreign value // returns buffer contents as a string
}
foreign class Curl {
construct easyInit() {}
foreign easySetOpt(opt, param)
foreign easyPerform()
foreign easyCleanup()
}
var curl = Curl.easyInit()
var getContent = Fn.new { |url|
var buffer = Buffer.new()
curl.easySetOpt(CURLOPT_URL, url)
curl.easySetOpt(CURLOPT_FOLLOWLOCATION, 1)
curl.easySetOpt(CURLOPT_WRITEFUNCTION, 0) // write function to be supplied by C
curl.easySetOpt(CURLOPT_WRITEDATA, buffer)
curl.easyPerform()
return buffer.value
}
var url = "https://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500&format=xml"
var content = getContent.call(url)
var p = Pattern.new("title/=\"[+1^\"]\"")
var matches = p.findAll(content)
for (m in matches) {
var title = m.capsText[0].replace("'", "'").replace(""", "\"")
var title2 = title.replace(" ", "_").replace("+", "\%252B")
var taskUrl = "https://www.rosettacode.org/w/index.php?title=%(title2)&action=raw"
var taskContent = getContent.call(taskUrl)
var lines = taskContent.split("\n")
var count = lines.count { |line| line.trim().startsWith("=={{header|") }
System.print("%(title) : %(count) examples")
}
curl.easyCleanup()</syntaxhighlight>
<br>
which we now embed in the following C program, build and run.
<syntaxhighlight lang="c">/* gcc Rosetta_Code_Count_examples.c -o Rosetta_Code_Count_examples -lcurl -lwren -lm */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
#include "wren.h"
struct MemoryStruct {
char *memory;
size_t size;
};
/* C <=> Wren interface functions */
static size_t WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp) {
size_t realsize = size * nmemb;
struct MemoryStruct *mem = (struct MemoryStruct *)userp;
char *ptr = realloc(mem->memory, mem->size + realsize + 1);
if(!ptr) {
/* out of memory! */
printf("not enough memory (realloc returned NULL)\n");
return 0;
}
mem->memory = ptr;
memcpy(&(mem->memory[mem->size]), contents, realsize);
mem->size += realsize;
mem->memory[mem->size] = 0;
return realsize;
}
void C_bufferAllocate(WrenVM* vm) {
struct MemoryStruct *ms = (struct MemoryStruct *)wrenSetSlotNewForeign(vm, 0, 0, sizeof(struct MemoryStruct));
ms->memory = malloc(1);
ms->size = 0;
}
void C_bufferFinalize(void* data) {
struct MemoryStruct *ms = (struct MemoryStruct *)data;
free(ms->memory);
}
void C_curlAllocate(WrenVM* vm) {
CURL** pcurl = (CURL**)wrenSetSlotNewForeign(vm, 0, 0, sizeof(CURL*));
*pcurl = curl_easy_init();
}
void C_value(WrenVM* vm) {
struct MemoryStruct *ms = (struct MemoryStruct *)wrenGetSlotForeign(vm, 0);
wrenSetSlotString(vm, 0, ms->memory);
}
void C_easyPerform(WrenVM* vm) {
CURL* curl = *(CURL**)wrenGetSlotForeign(vm, 0);
curl_easy_perform(curl);
}
void C_easyCleanup(WrenVM* vm) {
CURL* curl = *(CURL**)wrenGetSlotForeign(vm, 0);
curl_easy_cleanup(curl);
}
void C_easySetOpt(WrenVM* vm) {
CURL* curl = *(CURL**)wrenGetSlotForeign(vm, 0);
CURLoption opt = (CURLoption)wrenGetSlotDouble(vm, 1);
if (opt < 10000) {
long lparam = (long)wrenGetSlotDouble(vm, 2);
curl_easy_setopt(curl, opt, lparam);
} else if (opt < 20000) {
if (opt == CURLOPT_WRITEDATA) {
struct MemoryStruct *ms = (struct MemoryStruct *)wrenGetSlotForeign(vm, 2);
curl_easy_setopt(curl, opt, (void *)ms);
} else if (opt == CURLOPT_URL) {
const char *url = wrenGetSlotString(vm, 2);
curl_easy_setopt(curl, opt, url);
}
} else if (opt < 30000) {
if (opt == CURLOPT_WRITEFUNCTION) {
curl_easy_setopt(curl, opt, &WriteMemoryCallback);
}
}
}
WrenForeignClassMethods bindForeignClass(WrenVM* vm, const char* module, const char* className) {
WrenForeignClassMethods methods;
methods.allocate = NULL;
methods.finalize = NULL;
if (strcmp(module, "main") == 0) {
if (strcmp(className, "Buffer") == 0) {
methods.allocate = C_bufferAllocate;
methods.finalize = C_bufferFinalize;
} else if (strcmp(className, "Curl") == 0) {
methods.allocate = C_curlAllocate;
}
}
return methods;
}
WrenForeignMethodFn bindForeignMethod(
WrenVM* vm,
const char* module,
const char* className,
bool isStatic,
const char* signature) {
if (strcmp(module, "main") == 0) {
if (strcmp(className, "Buffer") == 0) {
if (!isStatic && strcmp(signature, "value") == 0) return C_value;
} else if (strcmp(className, "Curl") == 0) {
if (!isStatic && strcmp(signature, "easySetOpt(_,_)") == 0) return C_easySetOpt;
if (!isStatic && strcmp(signature, "easyPerform()") == 0) return C_easyPerform;
if (!isStatic && strcmp(signature, "easyCleanup()") == 0) return C_easyCleanup;
}
}
return NULL;
}
static void writeFn(WrenVM* vm, const char* text) {
printf("%s", text);
}
void errorFn(WrenVM* vm, WrenErrorType errorType, const char* module, const int line, const char* msg) {
switch (errorType) {
case WREN_ERROR_COMPILE:
printf("[%s line %d] [Error] %s\n", module, line, msg);
break;
case WREN_ERROR_STACK_TRACE:
printf("[%s line %d] in %s\n", module, line, msg);
break;
case WREN_ERROR_RUNTIME:
printf("[Runtime Error] %s\n", msg);
break;
}
}
char *readFile(const char *fileName) {
FILE *f = fopen(fileName, "r");
fseek(f, 0, SEEK_END);
long fsize = ftell(f);
rewind(f);
char *script = malloc(fsize + 1);
fread(script, 1, fsize, f);
fclose(f);
script[fsize] = 0;
return script;
}
static void loadModuleComplete(WrenVM* vm, const char* module, WrenLoadModuleResult result) {
if( result.source) free((void*)result.source);
}
WrenLoadModuleResult loadModule(WrenVM* vm, const char* name) {
WrenLoadModuleResult result = {0};
if (strcmp(name, "random") != 0 && strcmp(name, "meta") != 0) {
result.onComplete = loadModuleComplete;
char fullName[strlen(name) + 6];
strcpy(fullName, name);
strcat(fullName, ".wren");
result.source = readFile(fullName);
}
return result;
}
int main(int argc, char **argv) {
WrenConfiguration config;
wrenInitConfiguration(&config);
config.writeFn = &writeFn;
config.errorFn = &errorFn;
config.bindForeignClassFn = &bindForeignClass;
config.bindForeignMethodFn = &bindForeignMethod;
config.loadModuleFn = &loadModule;
WrenVM* vm = wrenNewVM(&config);
const char* module = "main";
const char* fileName = "Rosetta_Code_Count_examples.wren";
char *script = readFile(fileName);
WrenInterpretResult result = wrenInterpret(vm, module, script);
switch (result) {
case WREN_RESULT_COMPILE_ERROR:
printf("Compile Error!\n");
break;
case WREN_RESULT_RUNTIME_ERROR:
printf("Runtime Error!\n");
break;
case WREN_RESULT_SUCCESS:
break;
}
wrenFreeVM(vm);
free(script);
return 0;
}</syntaxhighlight>
{{out}}
Just showing the first 25 'full' tasks:
<pre>
100 doors : 355 examples
100 prisoners : 85 examples
15 puzzle game : 86 examples
15 puzzle solver : 27 examples
2048 : 65 examples
21 game : 52 examples
24 game : 107 examples
24 game/Solve : 64 examples
4-rings or 4-squares puzzle : 74 examples
9 billion names of God the integer : 66 examples
99 bottles of beer : 376 examples
A+B : 296 examples
Abbreviations, automatic : 58 examples
Abbreviations, easy : 50 examples
Abbreviations, simple : 46 examples
ABC problem : 150 examples
Abelian sandpile model : 40 examples
Abelian sandpile model/Identity : 28 examples
Abstract type : 93 examples
Abundant odd numbers : 72 examples
Abundant, deficient and perfect number classifications : 110 examples
Accumulator factory : 115 examples
Achilles numbers : 25 examples
Ackermann function : 243 examples
Active Directory/Connect : 29 examples
....
</pre>
=={{header|zkl}}==
Uses shared libraries YAJL and cURL and handles "continue" responses.
<
fcn getTasks(language){
Line 2,662 ⟶ 3,863:
tasks
}
re:=RegExp(0'!\s+==\s*{{\s*header\s*\|!); // == {{ header | zkl
foreach task in (getTasks("Programming_Tasks")){
page:=CURL().get(
Line 2,670 ⟶ 3,871:
cnt,n:=0,0; while(re.search(page,True,n)){ cnt+=1; n=re.matched[0].sum(0); }
"%4d: %s".fmt(cnt,task).println();
}</
{{out}}
<pre>
| |||