Rosetta Code/Find unimplemented tasks
Given the name of a language on Rosetta Code, find all tasks which are not implemented in that language.
You are encouraged to solve this task according to the task description, using any language you may know.
- Task
Note: Implementations should allow for fetching more data than can be returned in one request to Rosetta Code.
You'll need to use the Media Wiki API, which you can find out about locally, here, or in Media Wiki's API documentation at, API:Query
Ada
Parsing XML with XMLAda from Adacore
with AWS.Client, AWS.Messages, AWS.Response, AWS.URL;
with DOM.Readers, DOM.Core, DOM.Core.Documents, DOM.Core.Nodes, DOM.Core.Attrs;
with Input_Sources.Strings, Unicode, Unicode.CES.Utf8;
with Ada.Strings.Unbounded, Ada.Text_IO, Ada.Command_Line;
with Ada.Containers.Vectors;
use AWS.Client, AWS.Messages, AWS.Response;
use DOM.Readers, DOM.Core, DOM.Core.Documents, DOM.Core.Nodes, DOM.Core.Attrs;
use AWS, Ada.Strings.Unbounded, Input_Sources.Strings;
use Ada.Text_IO, Ada.Command_Line;
procedure Not_Coded is
package Members_Vectors is new Ada.Containers.Vectors
(Index_Type => Positive, Element_Type => Unbounded_String);
use Members_Vectors;
All_Tasks, Language_Members : Vector;
procedure Get_Vector (Category : in String; Mbr_Vector : in out Vector) is
Reader : Tree_Reader;
Doc : Document;
List : Node_List;
N : Node;
A : Attr;
Page : AWS.Response.Data;
S : Messages.Status_Code;
-- Query has cmlimit value of 500, so we need 2 calls to
-- retrieve the complete list of Programming_category
Uri_Xml : constant String :=
"https://rosettacode.org/w/api.php?action=query&list=categorymembers" &
"&format=xml&cmlimit=500&cmtitle=Category:";
Cmcontinue : Unbounded_String := Null_Unbounded_String;
begin
loop
Page :=
AWS.Client.Get (Uri_Xml & Category & (To_String (Cmcontinue)));
S := AWS.Response.Status_Code (Page);
if S not in Messages.Success then
Put_Line
("Unable to retrieve data => Status Code :" & Image (S) &
" Reason :" & Reason_Phrase (S));
raise Connection_Error;
end if;
declare
Xml : constant String := Message_Body (Page);
Source : String_Input;
begin
Open
(Xml'Unrestricted_Access, Unicode.CES.Utf8.Utf8_Encoding,
Source);
Parse (Reader, Source);
Close (Source);
end;
Doc := Get_Tree (Reader);
List := Get_Elements_By_Tag_Name (Doc, "cm");
for Index in 1 .. Length (List) loop
N := Item (List, Index - 1);
A := Get_Named_Item (Attributes (N), "title");
Members_Vectors.Append
(Mbr_Vector, To_Unbounded_String (Value (A)));
end loop;
Free (List);
List := Get_Elements_By_Tag_Name (Doc, "continue");
if Length (List) = 0 then
-- we are done
Free (List);
Free (Reader);
exit;
end if;
N := Item (List, 0);
A := Get_Named_Item (Attributes (N), "cmcontinue");
Cmcontinue :=
To_Unbounded_String ("&cmcontinue=" & AWS.URL.Encode (Value (A)));
Free (List);
Free (Reader);
end loop;
end Get_Vector;
procedure Quick_Diff (From : in out Vector; Substract : in Vector) is
Beginning, Position : Extended_Index;
begin
-- take adavantage that both lists are already sorted
Beginning := First_Index (From);
for I in First_Index (Substract) .. Last_Index (Substract) loop
Position :=
Find_Index
(Container => From,
Item => Members_Vectors.Element (Substract, I),
Index => Beginning);
if not (Position = No_Index) then
Delete (From, Position);
Beginning := Position;
end if;
end loop;
end Quick_Diff;
begin
if Argument_Count = 0 then
Put_Line ("Can't process : No language given!");
return;
else
Put ("Language given: ");
Put_Line (Argument (1));
Get_Vector (Argument (1), Language_Members);
end if;
Get_Vector ("Programming_Tasks", All_Tasks);
Quick_Diff (All_Tasks, Language_Members);
for I in First_Index (All_Tasks) .. Last_Index (All_Tasks) loop
Put_Line (To_String (Members_Vectors.Element (All_Tasks, I)));
end loop;
Put_Line
("Numbers of tasks not implemented :=" &
Integer'Image (Last_Index ((All_Tasks))));
end Not_Coded;
ARM Assembly
/* ARM assembly Raspberry PI */
/* program tasksearchRasp.s */
/* access RosettaCode.org and data extract */
/* use openssl for access to port 443 */
/* test openssl : package libssl-dev */
/* REMARK 1 : this program use routines in a include file
see task Include a file language arm assembly
for the routine affichageMess conversion10
see at end of this program the instruction include */
/*******************************************/
/* Constantes */
/*******************************************/
.include "../constantes.inc"
//.equ EXIT, 1
.equ TAILLEBUFFER, 500
.equ SSL_OP_NO_SSLv3, 0x02000000
.equ SSL_OP_NO_COMPRESSION, 0x00020000
.equ SSL_MODE_AUTO_RETRY, 0x00000004
.equ SSL_CTRL_MODE, 33
.equ BIO_C_SET_CONNECT, 100
.equ BIO_C_DO_STATE_MACHINE, 101
.equ BIO_C_SET_SSL, 109
.equ BIO_C_GET_SSL, 110
.equ LGBUFFERREQ, 512001
.equ LGBUFFER2, 128001
/*********************************/
/* Initialized data */
/*********************************/
.data
szMessDebutPgm: .asciz "Program 32 bits start \n"
szRetourLigne: .asciz "\n"
szMessFinOK: .asciz "Program end OK. \n"
szMessErreur: .asciz "Erreur !!!"
//szMessExtractArea: .asciz "Extraction = "
szMessConnectOK: .asciz "Connexion site OK.\n"
szMessInitOK: .asciz "Initialisation SSL OK.\n"
szMessReqOK: .asciz "Send requete OK.\n"
szNomSite1: .asciz "www.rosettacode.org:443" @ host name and port
szLibStart: .asciz "<query><categorymembers>" @ search string
szLibsearch1: .asciz "<cm pageid="
szLibsearch2: .asciz "title="
szNomrepCertif: .asciz "/pi/certificats"
szRequete1: .asciz "GET /w/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=1000&format=xml HTTP/1.1 \r\nHost: rosettacode.org\r\nConnection: keep-alive\r\nContent-Type: text/plain\r\n\r\n"
szRequete2: .asciz "GET /w/api.php?action=query&list=categorymembers&cmtitle=Category:ARM%20Assembly&cmlimit=500&format=xml HTTP/1.1 \r\nHost: rosettacode.org\r\nConnection: keep-alive\r\nContent-Type: text/plain\r\n\r\n"
/*********************************/
/* UnInitialized data */
/*********************************/
.bss
.align 4
sBufferreq: .skip LGBUFFERREQ
sBufferreq1: .skip LGBUFFERREQ
szExtractArea: .skip TAILLEBUFFER
szExtractArea1: .skip TAILLEBUFFER
szTaskName: .skip 128
szTaskNamePgm: .skip 128
.align 4
stNewSSL: .skip 200
/*********************************/
/* code section */
/*********************************/
.text
.global main
main:
ldr r0,iAdrszMessDebutPgm
bl affichageMess @ start message
/* connexion host port 443 and send query */
ldr r0,iAdrszNomSite1
ldr r1,iAdrszRequete1
ldr r2,iAdrsBufferreq
bl envoiRequete
cmp r0,#-1
beq 99f @ error ?
ldr r0,iAdrszNomSite1
ldr r1,iAdrszRequete2
ldr r2,iAdrsBufferreq1
bl envoiRequete
cmp r0,#-1
beq 99f @ error ?
bl analyseReponse
ldr r0,iAdrszMessFinOK @ end message
bl affichageMess
mov r0, #0 @ return code ok
b 100f
99:
ldr r0,iAdrszMessErreur @ error
bl affichageMess
mov r0, #1 @ return code error
b 100f
100:
mov r7,#EXIT @ program end
svc #0 @ system call
iAdrszMessDebutPgm: .int szMessDebutPgm
iAdrszMessFinOK: .int szMessFinOK
iAdrszMessErreur: .int szMessErreur
iAdrszNomSite1: .int szNomSite1
iAdrszRequete2: .int szRequete2
iAdrszRequete1: .int szRequete1
iAdrsBufferreq: .int sBufferreq
iAdrsBufferreq1: .int sBufferreq1
/*********************************************************/
/* connexion host port 443 and send query */
/*********************************************************/
envoiRequete:
push {r2-r9,lr} @ save registers
mov r8,r0 @ save address site name
mov r9,r1 @ save address requete
mov r7,r2 @ save address buffer
@*************************************
@ openSsl functions use *
@*************************************
@init ssl
mov r0,#0
bl OPENSSL_init_crypto
bl ERR_load_BIO_strings
mov r2, #0
mov r1, #0
mov r0, #2
bl OPENSSL_init_crypto
mov r2, #0
mov r1, #0
mov r0, #0
bl OPENSSL_init_ssl
cmp r0,#0
blt erreur
bl TLS_client_method
bl SSL_CTX_new
cmp r0,#0
ble erreur
mov r6,r0 @ save ctx
ldr r1,iFlag
bl SSL_CTX_set_options
mov r0,r6
mov r1,#0
ldr r2,iAdrszNomrepCertif
bl SSL_CTX_load_verify_locations
cmp r0,#0
ble erreur
mov r0,r6
bl BIO_new_ssl_connect
cmp r0,#0
beq erreur
cmp r0,#-1
beq erreur
mov r5,r0 @ save bio
ldr r0,iAdrszMessInitOK
bl affichageMess
mov r0,r5
mov r1,#BIO_C_GET_SSL
mov r2,#0
ldr r3,iAdrstNewSSL
bl BIO_ctrl
ldr r0,iAdrstNewSSL
ldr r0,[r0]
mov r1,#SSL_CTRL_MODE
mov r2,#SSL_MODE_AUTO_RETRY
mov r3,#0
bl SSL_ctrl
mov r0,r5 @ bio
mov r1,#BIO_C_SET_CONNECT
mov r2,#0
mov r3,r8 @ site address
bl BIO_ctrl
mov r0,r5 @ bio
mov r1,#BIO_C_DO_STATE_MACHINE
mov r2,#0
mov r3,#0
bl BIO_ctrl
cmp r0,#0
blt erreur
ldr r0,iAdrszMessConnectOK
bl affichageMess
@ compute query length
mov r2,#0 @ init length
mov r1,r9 @ query address
1: @ loop compute length query
ldrb r0,[r1,r2]
cmp r0,#0
addne r2,#1
bne 1b
@ send query
mov r0,r5 @ bio
@ r1 = address query
@ r2 = length query
mov r3,#0
bl BIO_write @ send query
cmp r0,#0
blt erreur
ldr r0,iAdrszMessReqOK
bl affichageMess
2: @ begin loop to read datas
mov r0,r5 @ bio
mov r1,r7 @ buffer address
mov r2,#LGBUFFERREQ - 1
mov r3,#0
bl BIO_read
cmp r0,#0
ble 4f @ error ou pb server
mov r1,r7
add r7,r0
sub r2,r7,#6
ldr r2,[r2]
ldr r3,iCharEnd
cmp r2,r3 @ text end ?
beq 4f
mov r1,#0xFF @ delay loop
3:
subs r1,#1
bgt 3b
b 2b @ loop read other chunk
4: @ read end
//ldr r0,iAdrsBufferreq @ to display buffer response of the query
//bl affichageMess
mov r0, r5 @ close bio
bl BIO_free_all
mov r0,#0
b 100f
erreur: @ error display
ldr r1,iAdrszMessErreur
bl afficheerreur
mov r0,#-1 @ error code
b 100f
100:
pop {r2-r9,pc} @ restaur registers
iFlag: .int SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION
iAdrstNewSSL: .int stNewSSL
iAdrszNomrepCertif: .int szNomrepCertif
iCharEnd: .int 0x0A0D300A
iAdrszMessConnectOK: .int szMessConnectOK
iAdrszMessInitOK: .int szMessInitOK
iAdrszMessReqOK: .int szMessReqOK
/*********************************************************/
/* response analyze */
/*********************************************************/
analyseReponse:
push {r1-r6,lr} @ save registers
@ search start in task buffer
ldr r0,iAdrsBufferreq @ buffer address
mov r7,r0
ldr r1,iAdrszLibStart @ key text address
bl rechercheSousChaine
cmp r0,#-1
beq 99f
add r7,r7,r0 @ new search buffer address
mov r0,r7
@ search start in task buffer
ldr r0,iAdrsBufferreq11 @ buffer address
mov r5,r0
ldr r1,iAdrszLibStart @ key text address
bl rechercheSousChaine
cmp r0,#-1
beq 99f @ error ?
add r5,r5,r0
mov r0,r5
1: @ loop begin to find task in program buffer
mov r0,r5
ldr r1,iAdrszLibsearch1 @ text code task address
mov r2,#1 @ occurence key text
mov r3,#2 @ offset
ldr r4,iAdrszExtractArea1 @ address result area
bl extChaine
cmp r0,#-1
beq 99f @ error ?
mov r5,r0 @ new address to search
ldr r0,iAdrszExtractArea1
bl conversionAtoD @ conversion code task to numeric
mov r10,r0 @ save numeric code
mov r0,r5 @ search task name in pgm buffer @
ldr r1,iAdrszLibsearch2 @ key text address
mov r2,#1 @ occurence key text
mov r3,#2 @ offset
ldr r4,iAdrszTaskNamePgm @ address result area
bl extChaine
cmp r0,#-1
beq 99f
mov r5,r0 @ new address to search
2: @ loop search buffer tasks
mov r0,r7
ldr r1,iAdrszLibsearch1 @ key text address
mov r2,#1 @ occurence key text
mov r3,#2 @ offset
ldr r4,iAdrszExtractArea @ address result area
bl extChaine
cmp r0,#-1
beq 99f
mov r7,r0
mov r0,r7
ldr r1,iAdrszLibsearch2 @ key text address
mov r2,#1 @ occurence key text
mov r3,#2 @ offset
ldr r4,iAdrszTaskName @ address result area
bl extChaine
cmp r0,#-1
beq 99f
mov r7,r0 @ new search address in task buffer
ldr r0,iAdrszExtractArea
bl conversionAtoD @ conversion code task in numeric
cmp r10,r0 @ compere two task code
beq 10f @ search next codes if equals
ldr r0,iAdrszTaskName @ else display task name
bl affichageMess
ldr r0,iAdrszRetourLigne
bl affichageMess
add r0,r7,#4 @ search if end of task list
ldrb r2,[r0]
cmp r2,#'/'
bne 2b @ no -> loop
add r0,#1
ldrb r2,[r0]
cmp r2,#'c'
bne 2b @ no -> loop
b 100f @ yes -> list end
10:
add r0,r5,#4 @ search if end of pgm task list
ldrb r2,[r0]
cmp r2,#'/'
bne 1b
add r0,#1
ldrb r2,[r0]
cmp r2,#'c'
bne 1b
b 100f @ list pgm end
99:
ldr r0,iAdrszMessErreur1 @ error
bl affichageMess
mov r0, #-1 @ error return code
b 100f
100:
pop {r1-r6,pc} @ restaur registers
iAdrsBufferreq11: .int sBufferreq1
iAdrszLibStart: .int szLibStart
iAdrszLibsearch1: .int szLibsearch1
iAdrszLibsearch2: .int szLibsearch2
iAdrszTaskName: .int szTaskName
iAdrszTaskNamePgm: .int szTaskNamePgm
iAdrszExtractArea: .int szExtractArea
iAdrszExtractArea1: .int szExtractArea1
iAdrszRetourLigne: .int szRetourLigne
iAdrszMessErreur1: .int szMessErreur
/*********************************************************/
/* Text Extraction behind text key */
/*********************************************************/
/* r0 buffer address */
/* r1 key text to search */
/* r2 number occurences to key text */
/* r3 offset */
/* r4 result address */
extChaine:
push {r2-r8,lr} @ save registers
mov r5,r0 @ save buffer address
mov r6,r1 @ save key text
@ compute text length
mov r7,#0
1: @ loop
ldrb r0,[r5,r7] @ load a byte
cmp r0,#0 @ end ?
addne r7,#1 @ no -> loop
bne 1b
add r7,r5 @ compute text end
mov r8,#0
2: @ compute length text key
ldrb r0,[r6,r8]
cmp r0,#0
addne r8,#1
bne 2b
3: @ loop to search nième(r2) key text
mov r0,r5
mov r1,r6
bl rechercheSousChaine
cmp r0,#0
blt 100f
subs r2,#1
addgt r5,r0
addgt r5,r8
bgt 3b
add r0,r5 @ add address text to index
add r3,r0 @ add offset
sub r3,#1
@ and add length key text
add r3,r8
cmp r3,r7 @ > at text end
movge r0,#-1 @ yes -> error
bge 100f
mov r0,#0
4: @ character loop copy
ldrb r2,[r3,r0]
strb r2,[r4,r0]
cmp r2,#0 @ text end ?
moveq r0,#0 @ return zero
beq 100f
cmp r2,#'"' @ text end ?
beq 5f
cmp r0,#48 @ extraction length
beq 5f
add r0,#1
b 4b @ and loop
5:
mov r2,#0 @ store final zéro
strb r2,[r4,r0]
add r0,#1
add r0,r3 @ r0 return the last position of extraction
@ it is possible o search another text
100:
pop {r2-r8,pc} @ restaur registers
/******************************************************************/
/* search substring in string */
/******************************************************************/
/* r0 contains address string */
/* r1 contains address substring */
/* r0 return start index substring or -1 if not find */
rechercheSousChaine:
push {r1-r6,lr} @ save registers
mov r2,#0 @ index position string
mov r3,#0 @ index position substring
mov r6,#-1 @ search index
ldrb r4,[r1,r3] @ load first byte substring
cmp r4,#0 @ zero final ?
moveq r0,#-1 @ error
beq 100f
1:
ldrb r5,[r0,r2] @ load string byte
cmp r5,#0 @ zero final ?
moveq r0,#-1 @ yes -> not find
beq 100f
cmp r5,r4 @ compare character two strings
beq 2f
mov r6,#-1 @ not equal - > raz index
mov r3,#0 @ and raz byte counter
ldrb r4,[r1,r3] @ and load byte
add r2,#1 @ and increment byte counter
b 1b @ and loop
2: @ characters equal
cmp r6,#-1 @ first character equal ?
moveq r6,r2 @ yes -> start index in r6
add r3,#1 @ increment substring counter
ldrb r4,[r1,r3] @ and load next byte
cmp r4,#0 @ zero final ?
beq 3f @ yes -> search end
add r2,#1 @ else increment string index
b 1b @ and loop
3:
mov r0,r6 @ return start index substring in the string
100:
pop {r1-r6,pc} @ restaur registres
/***************************************************/
/* ROUTINES INCLUDE */
/***************************************************/
.include "../affichage.inc"- Output:
Program 32 bits start Initialisation SSL OK. Connexion site OK. Send requete OK. Initialisation SSL OK. Connexion site OK. Send requete OK. Abstract type Accumulator factory Active Directory/Connect Active Directory/Search for a user Active object Add a variable to a class instance at runtime Algebraic data types
AutoHotkey
The GUI overkill version with comments.
#NoEnv ; do not resolve environment variables (speed)
#SingleInstance force ; allow only one instance
SetBatchLines, -1 ; set to highest script speed
SetControlDelay, 0 ; set delay between control commands to lowest
; additional label, for clarity only
AutoExec:
Gui, Add, DDL, x10 y10 w270 r20 vlngStr ; add drop-down list
Gui, Add, Button, x290 y10 gShowLng, Show Unimplemented ; add button
Gui, Add, ListView, x10 y36 w400 h300 vcatLst gOnLV, Unimplemented ; add listview
Gui, Add, StatusBar, vsbStr, ; add statusbar
Gui, Show, , RosettaCode unimplemented list ; show the gui
allLng := getList("lng") ; get a list of all available languages
selectStr = Select language... ; set selection string for ddl
GuiControl, , LngStr, |%selectStr%||%allLng% ; set the ddl to new contents
SB_SetIcon("user32.dll", 5) ; change statusbar icon
SB_SetText("Done loading languages. Select from menu.") ; change statusbar text
Return ; end of the autoexec section. Script waits for input.
; subroutine for language list in ddl update
ShowLng:
Gui, Submit, NoHide ; refresh all gui variables
If (lngStr != selectStr) ; if the current selected language is not the selection string
{
SB_SetIcon("user32.dll", 2) ; set statusbar icon to exclamation
SB_SetText("Loading unimplemented tasks... Please wait.") ; set statusbar text
allTsk := getList("tsk") ; get a list of all tasks
allThis := getList(lngStr) ; get a list of all done tasks for this language
Loop, Parse, allTsk, | ; parse the list of all tasks
{
If !InStr(allThis,A_LoopField) ; if the current task is not found in the list of all tasks
notImpl .= A_LoopField . "|" ; add the current field to the notImpl variable
allTskCnt := A_Index ; save the index for final count
}
StringTrimRight, notImpl, notImpl, 1 ; remove last delimiter
LV_Delete() ; emty the listview
GuiControl, -Redraw, catLst ; set the listview to not redraw while adding (speed)
Loop, Parse, notImpl, | ; parse the list of not implemented tasks
{
LV_Add("", A_LoopField) ; add them to the listview, field by field
notImplCnt := A_Index ; save the index for final count
}
GuiControl, +Redraw, catLst ; set the listview back to normal
SB_SetIcon("user32.dll", 5) ; change statusbar icon to information
SB_SetText("There are " . notImplCnt . " of " . allTskCnt
. " tasks unimplemented. Double-click task to open in browser.") ; set the statusbar text
notImpl = ; empty the notImpl variable
notImplCnt = 0 ; set the count back to 0
}
Return
; subroutine for action on listview
OnLV:
If (A_GuiEvent = "DoubleClick") ; if the listview was double-clicked
{
LV_GetText(rowTxt, A_EventInfo) ; get the text of the clicked row
rowTxt := Enc_Uri(rowTxt) ; uri-encode the text
StringReplace, rowTxt, rowTxt, `%20, _, All ; replace all space-encodings with underscores
Run % "http://rosettacode.org/wiki/" . rowTxt ; run the resulting link in the default browser
}
Return
; generic function to gather list
getList(category)
{
fileName = temp.xml ; set temp-file name
If (category = "lng") ; if the category received is lng
{
category = Programming_Languages ; set the category
fileName = lng.xml ; set temp-file name
IfExist, %fileName% ; if the file already exists
{
FileGetTime, modTime, %fileName% ; get the last modified time
EnvSub, modTime, %A_Now%, days ; get the difference between now and last modified time in days
If (modTime < 3) ; if the result is less than 3
Goto, GetFileNoDL ; go to function-internal subroutine to parse
}
SB_SetIcon("user32.dll", 2) ; set statusbar icon
SB_SetText("Loading languages... Please wait.") ; set statusbar text
}
If (category = "tsk") ; if the category received is tsk
category = Programming_Tasks ; set the category
getFile: ; function-internal subroutine for getting a file and parsing it
; construct the url
url := "http://www.rosettacode.org/w/api.php?action=query&list="
. "categorymembers&cmtitle=Category:" . category
. "&cmlimit=500&format=xml" . doContinue
UrlDownloadToFile, %url%, %fileName% ; download the url
getFileNoDL: ; function-internal subroutine for parsing a file
FileRead, data, %fileName% ; read file into variable
pos = 1 ; set while-loop counter
rxp = title="(.*?)" ; set regular expression
While (pos := RegExMatch(data, rxp, title, pos)) ; get the contents of the title fields one-by-one
{
If InStr(title1, "Category:") ; if the contents contain Category:
StringTrimLeft, title1, title1, 9 ; remove that from the contents
StringReplace, title1, title1, |, `|, All ; escape all containing delimiters
title1 := Dec_XML(UTF82Ansi(title1)) ; convert to ansi first and then decode html entities
allTitles .= title1 . "|" ; add this title to list
pos++ ; increment counter
}
rxp = cmcontinue="(.*?)" ; set regular expression
If RegExMatch(data, rxp, next) ; when found
{
doContinue = &cmcontinue=%next1% ; set continuation string to add to url
Goto getFile ; go to function-internal subroutine to redownload and parse
}
StringTrimRight, allTitles, allTitles, 1 ; remove last delimiter from result
Return allTitles ; return result
}
; function to convert html entities to ansi equivalents
Dec_XML(str)
{
Loop
If RegexMatch(str, "S)(&#(\d+);)", dec)
StringReplace, str, str, %dec1%, % Chr(dec2), All
Else If RegexMatch(str, "Si)(&#x([\da-f]+);)", hex)
StringReplace, str, str, %hex1%, % Chr("0x" . hex2), All
Else
Break
StringReplace, str, str, , %A_Space%, All
StringReplace, str, str, ", ", All
StringReplace, str, str, ', ', All
StringReplace, str, str, <, <, All
StringReplace, str, str, >, >, All
StringReplace, str, str, &, &, All
return, str
}
; function to uri-encode input string
Enc_Uri(str)
{
f = %A_FormatInteger%
SetFormat, Integer, Hex
If RegExMatch(str, "^\w+:/{0,2}", pr)
StringTrimLeft, str, str, StrLen(pr)
StringReplace, str, str, `%, `%25, All
Loop
If RegExMatch(str, "i)[^\w\.~%/:]", char)
StringReplace, str, str, %char%, % "%" . SubStr(Asc(char),3), All
Else Break
SetFormat, Integer, %f%
Return, pr . str
}
; function to convert unicode to ansi text
UTF82Ansi(zString)
{
Ansi2Unicode(zString, wString, 65001)
Unicode2Ansi(wString, sString, 0)
Return sString
}
; helper function for unicode to ansi function
Ansi2Unicode(ByRef sString, ByRef wString, CP = 0)
{
nSize := DllCall("MultiByteToWideChar", "Uint", CP
, "Uint", 0, "Uint", &sString, "int", -1
, "Uint", 0, "int", 0)
VarSetCapacity(wString, nSize * 2)
DllCall("MultiByteToWideChar"
, "Uint", CP, "Uint", 0, "Uint", &sString, "int", -1
, "Uint", &wString, "int", nSize)
}
; helper function for unicode to ansi function
Unicode2Ansi(ByRef wString, ByRef sString, CP = 0)
{
nSize := DllCall("WideCharToMultiByte"
, "Uint", CP, "Uint", 0, "Uint", &wString, "int", -1
, "Uint", 0, "int", 0, "Uint", 0, "Uint", 0)
VarSetCapacity(sString, nSize)
DllCall("WideCharToMultiByte"
, "Uint", CP, "Uint", 0, "Uint", &wString, "int", -1
, "str", sString, "int", nSize, "Uint", 0, "Uint", 0)
}
; subroutine called when user closes the gui
GuiClose:
ExitApp ; exit the script
Return
Output
Loads a list of all languages. Pick the language you would like to see the unimplemented tasks of, press the button, double click the selected task to launch in default browser. It will download the languages to file and redownload if older than 3 days (to save unnecessary bandwith).
BBC BASIC
SYS "LoadLibrary", "URLMON.DLL" TO U%
IF U% == 0 ERROR 100, "DLL not available in your OS"
SYS "GetProcAddress", U%, "URLDownloadToFileA" TO U%
Q$=CHR$34 : REM The quote
BlkSize%=256 * 1024 : REM 256k must be enough
DIM Blk% BlkSize% - 1 : REM Reserve memory block to load data into
PROCFetchData("Programming_Tasks")
REM Count number of tasks and declare and populate Task$() array.
P%=Blk%
REPEAT
I%=INSTR($$P%, "title")
IF I% Tasks%+=1 : P%+=I%
UNTIL I% == 0
DIM Task$(Tasks%-1)
P%=Blk%
FOR I%=0 TO Tasks% - 1
Task$(I%)=FNValue(P%, "title")
NEXT
PROCShowUnimplemented("BBC_BASIC")
PROCShowUnimplemented("C++")
END
REM -------------------------------------------------------------------------
REM Compare each task title against loaded language data in memory.
DEF PROCShowUnimplemented(language$)
LOCAL i%, j%, mem%, n%
PROCFetchData(language$)
mem%=Blk%
PRINT "Unimplemented tasks for the '" language$ "' programming language:"
FOR i%=0 TO Tasks% - 1
j%=INSTR($$mem%, Task$(i%))
IF j% THEN
mem%+=j%
ELSE
n%+=1
PRINT " -" Task$(i%)
ENDIF
NEXT
PRINT "Total is: ";n% '
ENDPROC
REM -------------------------------------------------------------------------
REM Stitch the pages for this category together in the memory block.
DEF PROCFetchData(category$)
LOCAL mem%, continue$, e%, f%, tempfile$, url$
tempfile$=@tmp$ + "result.json"
mem%=Blk%
REPEAT
url$="http://www.rosettacode.org/w/api.php?" +\
\ "action=query&list=categorymembers&cmtitle=Category:" + category$ +\
\ "&cmlimit=500&format=json&cmcontinue=" + continue$
SYS U%, 0, url$, tempfile$, 0, 0 TO e% : REM Get one page to a file
IF e% ERROR 100, "Can't get data from Rosetta API"
f%=OPENINtempfile$ : e%=EXT#f% : CLOSE#f% : REM Get file size
IF mem% - Blk% + e% > BlkSize% ERROR 100, "Insufficient memory to load data"
OSCLI "LOAD " + tempfile$ + " " + STR$~mem% : REM Append to previous
e%=mem% + e%
?e%=0 : REM Terminating 0x00
continue$=FNValue(mem%, "cmcontinue") : REM Loaded page contains this name?
mem%=e% : REM Advance memory pointer
UNTIL continue$ == ""
ENDPROC
REM -------------------------------------------------------------------------
REM Retrieve value for a JSON name from address p% and advance p% afterwards.
DEF FNValue(RETURN p%, name$)
LOCAL s%
name$=Q$ + name$ + Q$ + ":"
s%=INSTR($$p%, name$)
IF s% == 0 THEN =""
p%+=s% + LENname$
=LEFT$($$p%, INSTR($$p%, Q$) - 1)
- Output:
Unimplemented tasks for the 'BBC_BASIC' programming language: -100 prisoners -15 puzzle solver -21 game ...... -Zhang-Suen thinning algorithm -Zsigmondy numbers -Zumkeller numbers Total is: 697 Unimplemented tasks for the 'C++' programming language: -Abelian sandpile model/Identity -Achilles numbers -Add a variable to a class instance at runtime ...... -Yahoo! search interface -Zsigmondy numbers -Zumkeller numbers Total is: 172
C#
Using JSON (not parsed, just Regex.)
To help demonstrate paging, the cmlimit parameter has been omitted from the search query so that 10 rows are returned by default
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Net;
class Program {
static List<string> GetTitlesFromCategory(string category) {
string searchQueryFormat = "http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:{0}&format=json{1}";
List<string> results = new List<string>();
string cmcontinue = string.Empty;
do {
string cmContinueKeyValue;
//append continue variable as needed
if (cmcontinue.Length > 0)
cmContinueKeyValue = String.Format("&cmcontinue={0}", cmcontinue);
else
cmContinueKeyValue = String.Empty;
//execute query
string query = String.Format(searchQueryFormat, category, cmContinueKeyValue);
string content = new WebClient().DownloadString(query);
results.AddRange(new Regex("\"title\":\"(.+?)\"").Matches(content).Cast<Match>().Select(x => x.Groups[1].Value));
//detect if more results are available
cmcontinue = Regex.Match(content, @"{""cmcontinue"":""([^""]+)""}", RegexOptions.IgnoreCase).Groups["1"].Value;
} while (cmcontinue.Length > 0);
return results;
}
static string[] GetUnimplementedTasksFromLanguage(string language) {
List<string> alltasks = GetTitlesFromCategory("Programming_Tasks");
List<string> lang = GetTitlesFromCategory(language);
return alltasks.Where(x => !lang.Contains(x)).ToArray();
}
static void Main(string[] args) {
string[] unimpl = GetUnimplementedTasksFromLanguage(args[0]);
foreach (string i in unimpl) Console.WriteLine(i);
}
}
Clojure
This uses a couple of core libraries, and a Java method for URL encoding.
(require
'[clojure.xml :as xml]
'[clojure.set :as set]
'[clojure.string :as string])
(import '[java.net URLEncoder])
The titles-cont function fetches and parses an XML response, and walks over it extracting titles. It also extracts the cmcontinue value, if present. Returns a pair [titles,cmcontinue].
(defn titles-cont [url]
(let [docseq (-> url xml/parse xml-seq)]
((juxt #(filter string? %), #(-> (filter map? %) first :cmcontinue))
(for [{:keys [tag attrs content]} docseq :when (#{:cm :query-continue} tag)]
(if (= tag :cm)
(attrs :title)
(-> content first :attrs))))))
The get-titles function has 1- and 2-argument versions. The former takes the name of a category, composes the appropriate URL query, and calls the 2-argument version. The 2-argument version gets a title list (with possible cmcontinue value), chaining further calls as necessary into the lazy sequence result.
(defn urlencode [s] (URLEncoder/encode s "UTF-8"))
(defn param [p v] (str p (urlencode v)))
(defn get-titles
([category]
(let [urlbase "http://www.rosettacode.org/w/api.php"
params ["action=query"
"list=categorymembers"
"format=xml"
"cmlimit=200"
(param "cmtitle=Category:" category)]
url (str urlbase "?" (string/join "&" params)]
(get-titles url nil)))
([url continue-at]
(let [continue-param (if continue-at (param "&cmcontinue=" continue-at))
[titles continue] (titles-cont (str url continue-param))]
(if continue
(lazy-cat titles (get-titles url continue))
titles))))
The unimplemented function gets a set of all titles and of language-implemented titles and returns the difference. It uses future in order to do the necessary URL requests in parallel.
(defn unimplemented [lang-name]
(let [title-set #(future (apply sorted-set (get-titles %)))
all-titles (title-set "Programming_Tasks")
lang-titles (title-set lang-name)]
(seq (set/difference @all-titles @lang-titles))))
(let [titles (unimplemented "Clojure")]
(doseq [title titles] (println title))
(println "count: " (count titles)))
(shutdown-agents)
E
Using JSON.
#!/usr/bin/env rune
# NOTE: This program will not work in released E, because TermL is an
# imperfect superset of JSON in that version: it does not accept "\/".
# If you build E from the latest source in SVN then it will work.
#
# Usage: rosettacode-cat-subtract.e [<syntaxhighlight lang="e">]
#
# Prints a list of tasks which have not been completed in the language.
# If unspecified, the default language is E.
pragma.syntax("0.9")
pragma.enable("accumulator")
def termParser := <import:org.quasiliteral.term.makeTermParser>
def jURLEncoder := <unsafe:java.net.makeURLEncoder>
def urlEncode(text) {
return jURLEncoder.encode(text, "UTF-8")
}
/** Convert JSON-as-term-tree to the corresponding natural E data structures. */
def jsonTermToData(term) {
switch (term) {
# JSON object to E map
match term`{@assocs*}` {
return accum [].asMap() for term`@{key :String}: @valueJson` in assocs {
_.with(key, jsonTermToData(valueJson))
}
}
# JSON array to E list
match term`[@elements*]` {
return accum [] for elem in elements { _.with(jsonTermToData(elem)) }
}
# Literals just need to be coerced
match lit :any[String, int, float64] {
return lit
}
# Doesn't support true/false/null, but we don't need that for this application.
}
}
def fetchCategoryAccum(name, membersSoFar :Set, extraArgs) {
stderr.println(`Fetching Category:$name $extraArgs...`)
def categoryAPIResource := <http>[`//rosettacode.org/w/api.php?` +
`action=query&list=categorymembers&cmtitle=Category:${urlEncode(name)}&` +
`format=json&cmlimit=500&cmprop=title$extraArgs`]
def members :=
when (def responseJSON := categoryAPIResource <- getTwine()) -> {
# stderr.println(`Fetched Category:$name $extraArgs, parsing...`)
def response := jsonTermToData(termParser(responseJSON))
# stderr.println(`Parsed Category:$name $extraArgs response, extracting data...`)
def [
"query" => ["categorymembers" => records],
"query-continue" => continueData := null
] := response
def members := accum membersSoFar for record in records { _.with(record["title"]) }
switch (continueData) {
match ==null {
stderr.println(`Got all ${members.size()} for Category:$name.`)
members
}
match ["categorymembers" => ["cmcontinue" => continueParam]] {
stderr.println(`Fetched ${members.size()} members for Category:$name...`)
fetchCategoryAccum(name, members, `&cmcontinue=` + urlEncode(continueParam))
}
}
} catch p { throw(p) }
return members
}
def fetchCategory(name) {
return fetchCategoryAccum(name, [].asSet(), "")
}
# Interpret program arguments
def lang := switch (interp.getArgs()) {
match [lang] { lang }
match [] { "E" }
}
# Fetch categories
when (def allTasks := fetchCategory("Programming_Tasks"),
def doneTasks := fetchCategory(lang),
def omitTasks := fetchCategory(lang + "/Omit")
) -> {
# Compute difference and report
def notDoneTasks := allTasks &! (doneTasks | omitTasks)
println()
println("\n".rjoin(notDoneTasks.getElements().sort()))
} catch p {
# Whoops, something went wrong
stderr.println(`$p${p.eStack()}`)
}Erlang
init_http/0 is used by many tasks. rosetta_code_list_of/1 is used by Rosetta_Code/Rank_languages_by_popularity
-module( find_unimplemented_tasks ).
-include_lib( "xmerl/include/xmerl.hrl" ).
-export( [init_http/0, per_language/1, rosetta_code_list_of/1] ).
init_http() ->
application:start( inets ).
per_language( Language ) ->
ok = init_http(),
Tasks = rosetta_code_list_of( "Programming_Tasks" ),
Uninplemented = Tasks -- rosetta_code_list_of( Language ),
io:fwrite( "Unimplemented total: ~p~n", [erlang:length(Uninplemented)] ),
[io:fwrite("~p~n", [X]) || X <- Uninplemented].
rosetta_code_list_of( Category ) ->
URL = "http://rosettacode.org/mw/api.php?action=query&list=categorymembers&cmlimit=500&format=xml&cmtitle=Category:"
++ Category,
title_contents( URL, "", [] ).
title_contents( URL, Continue, Acc ) ->
{ok, {{_HTTP,200,"OK"}, _Headers, Body}} = httpc:request( URL ++ Continue ),
{XML, _} = xmerl_scan:string( Body ),
News = xml_selection( "title", XML ),
New_continue = title_contents_url_continue( xml_selection("cmcontinue", XML) ),
title_contents_continue( URL, New_continue, Acc ++ News ).
title_contents_continue( _URL, "", Acc ) -> Acc;
title_contents_continue( URL, Continue, Acc ) -> title_contents( URL, Continue, Acc ).
title_contents_url_continue( [] ) -> "";
title_contents_url_continue( [Continue | _] ) -> "&cmcontinue=" ++ Continue.
xml_selection( Selection, XML ) ->
[lists:map( fun xml_8211/1, X) || #xmlAttribute{value=X} <- xmerl_xpath:string("//@" ++ Selection, XML)].
xml_8211( 8211 ) -> $-;
xml_8211( 924 ) -> $\s;
xml_8211( 1050 ) -> $\s;
xml_8211( 1052 ) -> $\s;
xml_8211( Character ) -> Character.
- Output:
25> find_unimplemented_tasks:per_language("Erlang").
Unimplemented total: 307
"24 game/Solve"
"Abstract type"
"Active Directory/Search for a user"
"Add a variable to a class instance at runtime"
"Address of a variable"
.
.
.
"Yahoo! search interface"
"Yin and yang"
"Zeckendorf arithmetic"
"Zeckendorf number representation"
"Zhang-Suen thinning algorithm"
FreeBASIC
#include "windows.bi"
#include "file.bi"
Dim As Any Ptr urlmon = Dylibload("URLMON.DLL")
If urlmon = 0 Then
Print "DLL not available in your OS"
End 100
End If
Dim Shared As Function(Byval As Any Ptr, Byval As ZString Ptr, Byval As ZString Ptr, Byval As Any Ptr, Byval As Any Ptr) As Integer UDTF
UDTF = Dylibsymbol(urlmon, "URLDownloadToFileA")
Const As String Q = Chr(34) ' The quote
Dim Shared As Integer BlkSize = 256 * 1024 ' 256k must be enough
Dim Shared As Ubyte Ptr Blk
Blk = Allocate(BlkSize)
Dim Shared As Integer Tasks
Dim Shared As String TaskK()
Function Value(Byref p As Ubyte Ptr, nombre As String) As String
Dim As String nameStr = Q & nombre & Q & ":"
Dim As Integer s = Instr(*Cast(ZString Ptr, p), nameStr)
If s = 0 Then Return ""
p += s + Len(nameStr)
Return Left(*Cast(ZString Ptr, p), Instr(*Cast(ZString Ptr, p), Q) - 1)
End Function
Sub FetchData(category As String)
Dim As String tempfile = Curdir & "/result.json"
Dim As String url
Dim As Integer e, f
Dim As String continuar = ""
Dim As Ubyte Ptr mem = Blk
Do
url = "http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:" & category & "&cmlimit=500&format=json&cmcontinue=" & continuar
e = UDTF(0, url, tempfile, 0, 0)
If e Then
Print "Can't get data from Rosetta API"
End 100
End If
f = Filelen(tempfile)
If mem - Blk + f > BlkSize Then
Print "Insufficient memory to load data"
End 100
End If
Dim As Integer ff = Freefile
Open tempfile For Binary As #ff
Get #ff, , *mem, f
Close #ff
mem[f] = 0
continuar = Value(mem, "cmcontinue")
mem += f
Loop Until continuar = ""
End Sub
Sub ShowUnimplemented(language As String)
Dim As Integer i, j, n
Dim As Ubyte Ptr mem
FetchData(language)
mem = Blk
Print !"\nUnimplemented tasks for the '" & language & "' programming language:"
For i = 0 To Tasks - 1
j = Instr(*Cast(ZString Ptr, mem), TaskK(i))
If j Then
mem += j
Else
n += 1
Print " -" & TaskK(i)
End If
Next
Print "Total is: " & n
End Sub
FetchData("Programming_Tasks")
Tasks = 0
Dim As Ubyte Ptr p = Blk
Dim As Integer i
Do
i = Instr(*Cast(ZString Ptr, p), "title")
If i Then
Tasks += 1
p += i
End If
Loop Until i = 0
Redim TaskK(Tasks - 1)
p = Blk
For i = 0 To Tasks - 1
TaskK(i) = Value(p, "title")
Next
ShowUnimplemented("FreeBASIC")
ShowUnimplemented("C++")
Sleep
Go
XML, stepping through the elements.
package main
import (
"encoding/xml"
"fmt"
"io"
"net/http"
"net/url"
)
const language = "Go"
var baseQuery = "http://rosettacode.org/mw/api.php?action=query" +
"&format=xml&list=categorymembers&cmlimit=100"
func req(u string, foundCm func(string)) string {
resp, err := http.Get(u)
if err != nil {
fmt.Println(err) // connection or request fail
return ""
}
defer resp.Body.Close()
for p := xml.NewDecoder(resp.Body); ; {
t, err := p.RawToken()
switch s, ok := t.(xml.StartElement); {
case err == io.EOF:
return ""
case err != nil:
fmt.Println(err)
return ""
case !ok:
continue
case s.Name.Local == "cm":
for _, a := range s.Attr {
if a.Name.Local == "title" {
foundCm(a.Value)
}
}
case s.Name.Local == "categorymembers" && len(s.Attr) > 0 &&
s.Attr[0].Name.Local == "cmcontinue":
return url.QueryEscape(s.Attr[0].Value)
}
}
return ""
}
func main() {
// get language members, store in a map
langMap := make(map[string]bool)
storeLang := func(cm string) { langMap[cm] = true }
languageQuery := baseQuery + "&cmtitle=Category:" + language
continueAt := req(languageQuery, storeLang)
for continueAt > "" {
continueAt = req(languageQuery+"&cmcontinue="+continueAt, storeLang)
}
// a quick check to avoid long output
if len(langMap) == 0 {
fmt.Println("no tasks implemented for", language)
return
}
// get tasks, print as we go along
printUnImp := func(cm string) {
if !langMap[cm] {
fmt.Println(cm)
}
}
taskQuery := baseQuery + "&cmtitle=Category:Programming_Tasks"
continueAt = req(taskQuery, printUnImp)
for continueAt > "" {
continueAt = req(taskQuery+"&cmcontinue="+continueAt, printUnImp)
}
}
Haskell
from HackageDB
import Network.Browser
import Network.HTTP
import Network.URI
import Data.List
import Data.Maybe
import Text.XML.Light
import Control.Arrow
import Data.Char
getRespons url = do
rsp <- Network.Browser.browse $ do
setAllowRedirects True
setOutHandler $ const (return ()) -- quiet
request $ getRequest url
return $ rspBody $ snd rsp
replaceWithSpace c = (\x -> if c==x then ' ' else x)
encl = chr 34
unimpTasks lang = do
allTasks <- getRespons "http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500&format=xml"
impl <- getRespons ( "http://rosettacode.org/json/isb/" ++ lang ++ ".json")
let langxx = map (map(replaceWithSpace '_')) $ filter (/=",") $ words $ map (replaceWithSpace encl ) $ init $ drop 1 impl
xml = onlyElems $ parseXML allTasks
allxx = concatMap (map (fromJust.findAttr (unqual "title")). filterElementsName (== unqual "cm")) xml
mapM_ putStrLn $ sort $ allxx \\ langxx
With only standard libraries
import Network.HTTP
import Data.Text (splitOn, pack, unpack)
import Data.List
getTasks :: String -> IO [String]
getTasks url = do
resp <- simpleHTTP (getRequest url)
body <- getResponseBody resp
return $ tail $ map (unpack . head . splitOn (pack "\"}")) $ splitOn (pack "\"title\":\"") (pack body)
main :: String -> IO ()
main lang = do
implTasks <- getTasks $ "http://rosettacode.org/mw/api.php?action=query&list=categorymembers&cmtitle=Category:" ++ lang ++ "&format=json&cmlimit=500"
allTasks <- getTasks "http://rosettacode.org/mw/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&format=json&cmlimit=500"
mapM_ putStrLn $ allTasks \\ implTasks
Icon and Unicon
The following code only works in Unicon.
$define RCINDEX "http://rosettacode.org/mw/api.php?format=xml&action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500"
$define RCTASK "http://rosettacode.org/mw/index.php?action=raw&title="
$define RCUA "User-Agent: Unicon Rosetta 0.1"
$define RCXUA "X-Unicon: http://unicon.org/"
$define TASKTOT "* Total Tasks *"
$define TOTTOT "* Total Headers*"
link strings
link hexcvt
procedure main(A) # simple single threaded read all at once implementation
lang := \A[1] | "Unicon"
write("Unimplemented tasks for ",lang," as of ",&date)
every task := taskNames() do {
if lang == languages(task) then next
write(task)
}
end
# Generate task names
procedure taskNames()
continue := ""
while \(txt := ReadURL(RCINDEX||continue)) do {
txt ? {
while tab(find("<cm ") & find(s :="title=\"")+*s) do
suspend tab(find("\""))\1
if tab(find("cmcontinue=")) then {
continue := "&"||tab(upto(' \t'))
}
else break
}
}
end
# Generate language headers in a task
procedure languages(task)
static WS
initial WS := ' \t'
page := ReadURL(RCTASK||CleanURI(task))
page ? while (tab(find("\n==")),tab(many(WS))|"",tab(find("{{"))) do {
header := tab(find("=="))
header ? {
while tab(find("{{header|")) do {
suspend 2(="{{header|",tab(find("}}")))\1
}
}
}
end
procedure CleanURI(u) #: clean up a URI
static tr,dxml # xml & http translation
initial {
tr := table()
every c := !string(~(&digits++&letters++'-_.!~*()/\'`')) do
tr[c] := "%"||hexstring(ord(c),2)
every /tr[c := !string(&cset)] := c
tr[" "] := "_" # wiki convention
every push(dxml := [],"&#"||right(ord(c := !"&<>'\""),3,"0")||";",c)
}
dxml[1] := u # insert URI as 1st arg
u := replacem!dxml # de-xml it
every (c := "") ||:= tr[!u] # reencode everything
c := replace(c,"%3E","'") # Hack to put single quotes back in
c := replace(c,"%26quot%3B","\"") # Hack to put double quotes back in
return c
end
procedure ReadURL(url) #: read URL into string
page := open(url,"m",RCUA,RCXUA) | stop("Unable to open ",url)
text := ""
if page["Status-Code"] < 300 then while text ||:= reads(page,-1)
else write(&errout,image(url),": ",
page["Status-Code"]," ",page["Reason-Phrase"])
close(page)
return text
end
Sample output (abridged):
Unimplemented tasks for Unicon as of 2013/07/06: ================================================== 9_billion_names_of_God_the_integer Active_Directory/Connect Active_Directory/Search_for_a_user Active_object Address_of_a_variable Arena_storage_pool Atomic_updates Balanced_ternary ... XML/Input XML/Output XML/XPath Y combinator Zebra puzzle Zeckendorf arithmetic Zeckendorf number representation
J
Solution:
require 'strings web/gethttp'
findUnimpTasks=: ('Programming_Tasks' -.&getCategoryMembers ,&'/Omit') ([ #~ -.@e.) getCategoryMembers
getTagContents=: dyad define
'starttag endtag'=. x
('\' -.~ endtag&taketo)&.>@(starttag&E. <@((#starttag)&}.);.1 ]) y
)
NB. RosettaCode Utilities
parseTitles=: ('"title":"';'"')&getTagContents
parseCMcontinue=:('"cmcontinue":"';'"')&getTagContents
getCMcontquery=: ('&cmcontinue=' , urlencode)^:(0 < #)@>@parseCMcontinue
getCategoryMembers=: monad define
buildqry=. 'action=query&list=categorymembers&cmtitle=Category:' , ,&'&cmlimit=500&format=json'
url=.'http://www.rosettacode.org/w/api.php'
uri=. url ,'?', buildqry urlencode y
catmbrs=. qrycont=. ''
whilst. #qrycont=. ,getCMcontquery jsondat do.
jsondat=. '-sL' gethttp uri , qrycont
catmbrs=. catmbrs, parseTitles jsondat
end.
catmbrs
)
Note that gethttp currently requires the '-sL' to follow redirects.
Example Usage:
4{. findUnimpTasks 'J' NB. get first 4 unimplemented tasks for J
┌────────────────┬────────────────────────┬──────────────────────────────────┬──────────────┐
│15 puzzle solver│Active Directory/Connect│Active Directory/Search for a user│Atomic updates│
└────────────────┴────────────────────────┴──────────────────────────────────┴──────────────┘
JavaScript
The isolation of in-browser JavaScript from system resources, and the association of JavaScript code files with particular (and already loaded) documents may mean that JavaScript is not the right tool for the broader case envisaged by this task.
For the narrower context of a browser in which the 'not implemented' page has been fetched for a particular language, we can however, evaluate an XPath expression in JavaScript to generate an array of titles for the unimplemented tasks.
(function (strXPath) {
var xr = document.evaluate(
strXPath,
document,
null, 0, 0
),
oNode = xr.iterateNext(),
lstTasks = [];
while (oNode) {
lstTasks.push(oNode.title);
oNode = xr.iterateNext();
}
return [
lstTasks.length + " items found in " + document.title,
''
].concat(lstTasks).join('\n')
})(
'//*[@id="mw-content-text"]/div[2]/table/tbody/tr/td/ul/li/a'
);
Output begins with:
107 items found in Reports:Tasks not implemented in Haskell - Rosetta Code Active Directory/Connect Active Directory/Search for a user Bitmap/Bézier curves/Cubic Bitmap/PPM conversion through a pipe Bitmap/Read an image through a pipe Call a function in a shared library Call an object method Canny edge detector Casting out nines Catmull–Clark subdivision surface Color of a screen pixel Colour bars/Display Colour pinstripe/Display Colour pinstripe/Printer Compare sorting algorithms' performance Conjugate transpose Create a file on magnetic tape Death Star Deconvolution/2D+ Delegates Executable library Extreme floating point values FTP Fibonacci word/fractal Find limit of recursion ...
jq
This script illustrates how jq interoperates with other command-line tools. It was tested in October, 2022 using both the C and Go implementations of jq.
The only pre-requisites other than bash are curl and jq, which is called at least five times.
#!/bin/bash
# October 8, 2022
# https://rosettacode.org/w/index.php?title=Rosetta_Code/Find_unimplemented_tasks
# Syntax: $0 [--markdown] CATEGORY
# Fetch the Category:Programming_Tasks and Category:$category pages,
# then compute the differences in the lists of titles.
# If --markdown is specified, then some markdown suitable for RosettaCode.org is added.
BN=$(basename "$0")
JQ=jq
function die { echo "$BN: $@" >&2 ; exit 1 ; }
baseuri="https://rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:"
if [ "$1" = "--markdown" ] ; then
markdown="--argjson markdown true"
shift
else
markdown="--arg markdown false"
fi
category="$1"
test -z "$category" && die "Syntax: $0 [--markdown] CATEGORY"
for id in $category Programming_Tasks; do
id=/tmp/rosettacode.$id.titles.json
test -s "$id" && rm "$id"
done
function getall {
local cat="$1"
local cmcontinue="$2"
local tmpfile="/tmp/rosettacode.$cat.json.tmp"
# cmlimit=500 is the max allowed so use paging
curl -Ss "${baseuri}${cat}&format=json&cmlimit=500${cmcontinue}" > "$tmpfile"
if [ ! -s "$tmpfile" ] ; then return ; fi
$JQ '.query.categorymembers[].title' "$tmpfile" >> /tmp/rosettacode.$cat.titles.json
cmcontinue=$($JQ -r '.continue | if . then .cmcontinue else null end' "$tmpfile" )
if [ -z "$cmcontinue" -o "$cmcontinue" = "null" ] ; then return ; fi
echo $BN: fetching continuation page for $cat ...
getall "$cat" "&cmcontinue=$cmcontinue"
}
getall $category
getall Programming_Tasks
for id in $category Programming_Tasks; do
id=/tmp/rosettacode.$id.titles.json
test -s "$id" || die "unable to find $id"
done
$JQ -r -n $markdown --slurpfile tasks /tmp/rosettacode.Programming_Tasks.titles.json \
--slurpfile cat /tmp/rosettacode.$category.titles.json '
def mark: if $markdown then "* [[\(gsub(" ";"_"))|\(.)]]" else . end;
($tasks - $cat)[] | mark '
Julia
using HTTP, JSON
const baseuri = "http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:"
const enduri = "&cmlimit=500&format=json"
queries(x) = baseuri * HTTP.Strings.escapehtml(x) * enduri
function getimplemented(query)
tasksdone = Vector{String}()
request = query
while (resp = HTTP.request("GET", request)).status == 200
fromjson = JSON.parse(String(resp.body))
for d in fromjson["query"]["categorymembers"]
if haskey(d, "title")
push!(tasksdone, d["title"])
end
end
if haskey(fromjson, "continue")
cmcont, cont = fromjson["continue"]["cmcontinue"], fromjson["continue"]["continue"]
request = query * "&cmcontinue=$cmcont&continue=$cont"
else
break
end
end
tasksdone
end
alltasks = getimplemented(queries("Programming_Tasks"))
showunimp(x) = (println("\nUnimplemented in $x:"); for t in setdiff(alltasks,
getimplemented(queries(x))) println(t) end)
showunimp("Julia")
showunimp("C++")
- Output:
Unimplemented in Julia: Active Directory/Connect Active Directory/Search for a user AVL tree Catmull–Clark subdivision surface Colour pinstripe/Printer Create a file on magnetic tape Deconvolution/2D+ Joystick position Machine code OLE Automation OpenGL Pattern matching Pinstripe/Printer Play recorded sounds Rosetta Code/Find unimplemented tasks Simulate input/Keyboard SOAP Speech synthesis Suffixation of decimal numbers Superpermutation minimisation Sutherland-Hodgman polygon clipping Use another language to call a function Yahoo! search interface Unimplemented in C++: 15 puzzle solver Abbreviations, automatic Abbreviations, easy Abbreviations, simple Add a variable to a class instance at runtime Balanced ternary Brace expansion Break OO privacy Calendar - for "REAL" programmers Call a foreign-language function Call an object method Casting out nines Check Machin-like formulas Church Numerals Colour pinstripe/Printer Commatizing numbers Constrained genericity Cuban primes Define a primitive data type Dynamic variable names Eban numbers Eertree Egyptian fractions Factorial base numbers indexing permutations of a collection First-class functions/Use numbers analogously Fixed length records Four is magic Four is the number of letters in the ... Hash join History variables HTTPS/Client-authenticated Hunt The Wumpus Idiomatically determine all the characters that can be used for symbols Idiomatically determine all the lowercase and uppercase letters Imaginary base numbers Index finite lists of positive integers Inheritance/Multiple Interactive programming Joystick position Knuth's power tree Law of cosines - triples Lucky and even lucky numbers Lychrel numbers Mayan numerals Mind boggling card trick Nested templated data Nonoblock Nonogram solver Object serialization OLE Automation OpenWebNet Password Order disjoint list items Partition an integer X into N primes Pattern matching Pig the dice game Pig the dice game/Player Pinstripe/Printer Play recorded sounds Ramer-Douglas-Peucker line simplification Range consolidation Reflection/Get source Reflection/List methods Reflection/List properties Respond to an unknown method call RIPEMD-160 Rosetta Code/Count examples Rosetta Code/Find bare lang tags Rosetta Code/Find unimplemented tasks Rosetta Code/Fix code tags Runtime evaluation Runtime evaluation/In an environment Safe primes and unsafe primes Send an unknown method call Solve a Holy Knight's tour Solve a Hopido puzzle Solve a Numbrix puzzle Solve the no connection puzzle Sort a list of object identifiers Spelling of ordinal numbers Strong and weak primes Suffixation of decimal numbers Sum and Product Puzzle Textonyms Topic variable Twelve statements URL parser Video display modes Word search World Cup group stage Yahoo! search interface Zeckendorf arithmetic
Lua
local requests = require('requests')
local lang = arg[1]
local function merge_tables(existing, from_req)
local result = existing
for _, v in ipairs(from_req) do
result[v.title] = true
end
return result
end
local function get_task_list(category)
local url = 'http://www.rosettacode.org/mw/api.php'
local query = {
action = 'query',
list = 'categorymembers',
cmtitle = string.format('Category:%s', category),
cmlimit = 500,
cmtype = 'page',
format = 'json'
}
local categories = {}
while true do
local resp = assert(requests.get({ url, params = query }).json())
categories = merge_tables(categories, resp.query.categorymembers)
if resp.continue then
query.cmcontinue = resp.continue.cmcontinue
else
break
end
end
return categories
end
local function get_open_tasks(lang)
if not lang then error('Language missing!') end
local all_tasks = get_task_list('Programming_Tasks')
local lang_tasks = get_task_list(lang)
local task_list = {}
for t, _ in pairs(all_tasks) do
if not lang_tasks[t] then
table.insert(task_list, t)
end
end
table.sort(task_list)
return task_list
end
local open_tasks = get_open_tasks(lang)
io.write(string.format('%s has %d unimplemented programming tasks: \n', lang, #open_tasks))
for _, t in ipairs(open_tasks) do
io.write(string.format(' %s\n', t))
end
- Output:
Python has 24 unimplemented programming tasks:
15 puzzle solver
Bitmap/PPM conversion through a pipe
Bitmap/Read an image through a pipe
...
Maple
#Example with the Maple Language
lan := "Maple":
x := URL:-Get(cat("http://rosettacode.org/wiki/Reports:Tasks_not_implemented_in_", StringTools:-SubstituteAll(lan, " ", "_")), output = content):
x := StringTools:-StringSplit(x, "<h2><span class=\"mw-headline\" id=\"Not_implemented\">Not implemented</span>")[2]:
x := StringTools:-StringSplit(x, "<span class=\"mw-headline\" id=\"Draft_tasks_without_implementation\">Draft tasks without implementation</span>")[1]:
x := StringTools:-StringSplit(x,"<li><a href=\"/wiki/")[2..]:
for problem in x do
printf("%s\n", StringTools:-SubstituteAll(StringTools:-Decode(StringTools:-StringSplit(problem, "\" title=")[1], 'percent'), "_", " "));
end do:- Output:
#10:09 AM 10/05/2018 15 Puzzle Game 15 puzzle solver 24 game/Solve 4-rings or 4-squares puzzle 9 billion names of God the integer AVL tree ... Xiaolin Wu's line algorithm Yahoo! search interface Yin and yang Zebra puzzle Zeckendorf arithmetic Zeckendorf number representation Zhang-Suen thinning algorithm Zig-zag matrix
Mathematica /Wolfram Language
Two implementations are considered, the first will use the API to get all the programming tasks, then the ones implemented for a certain language, and take the difference. The other will use the Tasks not implemented page and strip the html.
ClearAll[ImportAll]
ImportAll[lang_String] :=
Module[{data, continue, cmcontinue, extra, xml, next},
data = {};
continue = True;
cmcontinue = "";
While[continue,
extra = If[cmcontinue =!= "", "&cmcontinue=" <> cmcontinue, ""];
xml = Import["http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:" <> lang <> "&cmlimit=500&format=xml" <> extra, "XML"];
AppendTo[data, Cases[xml, XMLElement["cm", _, {}], \[Infinity]]];
next = Flatten[Cases[xml, {"cmcontinue" -> _}, \[Infinity]]];
If[Length[next] > 0,
next = First[next];
cmcontinue = "cmcontinue" /. next;
,
continue = False;
];
];
Cases[Flatten[data], HoldPattern["title" -> x_] :> x, \[Infinity]]
]
Complement[ImportAll["Programming_Tasks"], ImportAll["Mathematica"]]
which outputs a list of items not implemented:
- Output:
{Abstract type,Active Directory/Connect,Active Directory/Search for a user,Address of a variable,<<139>>,Write to Windows event log,Xiaolin Wu's line algorithm,Zeckendorf arithmetic}
Another method is by getting the Tasks not implemented page:
url = "http://rosettacode.org/wiki/Reports:Tasks_not_implemented_in_Mathematica";
html = Import[url, "XMLObject"];
pos = Position[html, XMLElement["div", {"class" -> "mw-content-ltr", "dir" -> "ltr", "lang" -> "en"}, ___]];
pos = First[pos];
data = Extract[html, pos];
pos = Position[data, XMLElement["li", {}, {XMLElement["a", {"shape" -> "rect", "href" -> _, "title" -> x_}, {x_}]}]];
data = Extract[data, pos];
data = data[[All, -1, -1, 2]];
data = {"title", "href"} /. # & /@ %;
data[[All, 2]] = "http://rosettacode.org" <> # & /@ data[[All, 2]];
newb = data[[All, 1]];
data = Hyperlink @@@ data;
data // Column
- Output:
Append a record to the end of a text file Arithmetic-geometric mean/Calculate Pi Atomic updates Bitcoin/address validation Bitmap/PPM conversion through a pipe Bitmap/Read an image through a pipe ...
Nim
import httpclient, strutils, xmltree, xmlparser, cgi, os
proc findrc(category: string): seq[string] =
var
name = "http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:$#&cmlimit=500&format=xml" % encodeUrl(category)
cmcontinue = ""
client = newHttpClient()
while true:
var x = client.getContent(name & cmcontinue).parseXml()
for node in x.findAll("cm"):
result.add node.attr("title")
cmcontinue.setLen(0)
for node in x.findAll("continue"):
let u = node.attr("cmcontinue")
if u.len != 0: cmcontinue = u.encodeUrl()
if cmcontinue.len > 0: cmcontinue = "&cmcontinue=" & cmcontinue
else: break
proc chooselang(): string =
if paramCount() < 1: "Nim" else: paramStr(1)
let alltasks = findrc("Programming_Tasks")
let lang = chooselang()
let langTasks = lang.findrc()
echo "Unimplemented tasks for language ", lang, ':'
for task in alltasks:
if task notin langTasks:
echo " ", task
- Output:
./unimplemented_tasks Nim Unimplemented tasks for language Nim: Active Directory/Connect Active Directory/Search for a user Function frequency HTTPS/Client-authenticated Hunt the Wumpus Inheritance/Multiple Joystick position
Oz
By parsing XML and using an XPath-like mechanism:
declare
[HTTPClient] = {Link ['x-ozlib://mesaros/net/HTTPClient.ozf']}
[XMLParser] = {Link ['x-oz://system/xml/Parser.ozf']}
fun {FindUnimplementedTasks Language}
AllTasks = {FindCategory "Programming Tasks"}
LangTasks = {FindCategory Language}
in
{ListDiff AllTasks LangTasks}
end
fun {FindCategory Cat}
CatUrl = "http://www.rosettacode.org/mw/api.php?action=query"
#"&list=categorymembers"
#"&cmtitle=Category:"#{PercentEncode Cat}
#"&cmlimit=500&format=xml"
fun {Loop CMContinue}
[_ Doc] = {Parse {GetPage CatUrl#CMContinue}}
Titles = {XPath Doc
[api query categorymembers cm {Attribute title}]}
in
case {XPath Doc
[api 'query-continue' categorymembers {Attribute cmcontinue}]}
of nil then Titles
[] [NewCMContinueAtom] then
NewCMContinue = {PercentEncode {Atom.toString NewCMContinueAtom}}
in
{Append Titles
{Loop "&cmcontinue="#NewCMContinue}}
end
end
in
{Loop nil}
end
%% XPath emulation
fun {XPath Doc Path}
P|Pr = Path
in
Doc.name = P %% assert
{FoldL Pr XPathStep [Doc]}
end
Nothing = {NewName}
fun {NotNothing X} X \= Nothing end
fun {XPathStep Elements P}
if {Atom.is P} then
{FilteredChildren Elements P}
elseif {Procedure.is P} then
{Filter {Map Elements P} NotNothing}
end
end
%% A flat list of all Type-children of all Elements.
fun {FilteredChildren Elements Type}
{Flatten
{Map Elements
fun {$ E}
{Filter E.children
fun {$ X}
case X of element(name:!Type ...) then true
else false
end
end}
end}}
end
fun {Attribute Attr}
fun {$ Element}
case {Filter Element.attributes fun {$ A} A.name == Attr end}
of [A] then A.value
else Nothing
end
end
end
%% GetPage
Client = {New HTTPClient.urlGET init(inPrms(toFile:false toStrm:true) _)}
fun {GetPage RawUrl}
Url = {VirtualString.toString RawUrl}
OutParams
in
{Client getService(Url ?OutParams ?_)}
OutParams.sOut
end
fun {PercentEncode Xs}
case Xs of nil then nil
[] X|Xr then
if {Char.isDigit X} orelse {Member X [&- &_ &. &~]}
orelse X >= &a andthen X =< &z
orelse X >= &z andthen X =< &Z then
X|{PercentEncode Xr}
else
{Append &%|{ToHex2 X} {PercentEncode Xr}}
end
end
end
fun {ToHex2 X}
[{ToHex1 X div 16} {ToHex1 X mod 16}]
end
fun {ToHex1 X}
if X >= 0 andthen X =< 9 then &0 + X
elseif X >= 10 andthen X =< 15 then &A + X - 10
end
end
%% Parse
local
Parser = {New XMLParser.parser init}
in
fun {Parse Xs} {Parser parseVS(Xs $)} end
end
fun {ListDiff Xs Ys}
{FoldL Ys List.subtract Xs}
end
in
%% show tasks not implemented in Oz
{ForAll {FindUnimplementedTasks "Oz"} System.showInfo}Perl
use LWP::UserAgent;
my $ua = LWP::UserAgent->new;
$ua->agent('');
sub enc { join '', map {sprintf '%%%02x', ord} split //, shift }
sub get { $ua->request( HTTP::Request->new( GET => shift))->content }
sub tasks {
my($category) = shift;
my $fmt = 'http://www.rosettacode.org/w/api.php?' .
'action=query&generator=categorymembers&gcmtitle=Category:%s&gcmlimit=500&format=json&rawcontinue=';
my @tasks;
my $json = get(sprintf $fmt, $category);
while (1) {
push @tasks, $json =~ /"title":"(.+?)"\}/g;
$json =~ /"gcmcontinue":"(.+?)"\}/ or last;
$json = get(sprintf $fmt . '&gcmcontinue=%s', $category, enc $1);
}
@tasks;
}
my %language = map {$_, 1} tasks shift || 'perl';
$language{$_} or print "$_\n" foreach tasks('Programming_Tasks'), tasks('Draft_Programming_Tasks');
See also: User:ImplSearchBot/Code
Phix
Note that Rosetta_Code/Tasks_without_examples#Phix with summary=true and output_html=false does much that same via web scraping, whereas this uses the web api.
-- demo\rosetta\Find_unimplemented_tasks.exw without js -- (libcurl, file i/o, peek, progress..) constant language = "Phix", -- language = "Go", -- language = "Julia", -- language = "Python", -- language = "Wren", base_query = "http://rosettacode.org/mw/api.php?action=query"& "&format=xml&list=categorymembers&cmlimit=100" include builtins\libcurl.e atom curl = NULL atom pErrorBuffer include builtins\xml.e function req(string url, integer rid) if curl=NULL then curl_global_init() curl = curl_easy_init() pErrorBuffer = allocate(CURL_ERROR_SIZE) curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, pErrorBuffer) end if curl_easy_setopt(curl, CURLOPT_URL, url) object res = curl_easy_perform_ex(curl) if integer(res) then string error = sprintf("%d [%s]",{res,peek_string(pErrorBuffer)}) crash("Download error: %s\n",{error}) end if if not string(res) then ?9/0 end if object xml = xml_parse(res)[XML_CONTENTS] res = xml_get_nodes(xml,"continue") res = iff(res=={}?"":xml_get_attribute(res[1],"cmcontinue")) xml = xml_get_nodes(xml,"query")[1] xml = xml_get_nodes(xml,"categorymembers")[1] xml = xml_get_nodes(xml,"cm") for i=1 to length(xml) do call_proc(rid,{xml_get_attribute(xml[i],"title")}) end for return res end function function html_clean(string ri) ri = substitute(ri,`"`,`"`) ri = substitute(ri,`'`,`'`) ri = substitute(ri,"\xE2\x80\x99","'") ri = substitute(ri,"\xC3\xB6","o") ri = substitute(ri,"%3A",":") ri = substitute(ri,"%E2%80%93","-") ri = substitute(ri,"%E2%80%99","'") ri = substitute(ri,"%27","'") ri = substitute(ri,"%2B","+") ri = substitute(ri,"%C3%A8","e") ri = substitute(ri,"%C3%A9","e") ri = substitute(ri,"%C3%B6","o") ri = substitute(ri,"%C5%91","o") ri = substitute(ri,"%22",`"`) ri = substitute(ri,"%2A","*") return ri end function sequence titles = {} procedure store_title(string title) titles = append(titles,title) end procedure integer unimplemented_count = 0, task_count = 0 procedure print_unimplemented(string title) if not find(title,titles) then title = html_clean(title) printf(1,"%s\n",{title}) unimplemented_count += 1 end if task_count += 1 end procedure procedure main() printf(1,"Loading implemented tasks list...\n") -- get and store task itles string lang_query := base_query & "&cmtitle=Category:" & language, continue_at := req(lang_query, store_title) while continue_at!="" do continue_at = req(lang_query&"&cmcontinue="&continue_at, store_title) end while -- a quick check to avoid long output if length(titles)==0 then printf(1,"no tasks implemented for %s\n", {language}) return end if -- get tasks, print as we go along printf(1,"Tasks:\n") string task_query := base_query & "&cmtitle=Category:Programming_Tasks" continue_at = req(task_query, print_unimplemented) while continue_at!="" do continue_at = req(task_query&"&cmcontinue="&continue_at, print_unimplemented) end while printf(1,"%d unimplemented tasks found for %s.\n",{unimplemented_count,language}) integer full_tasks = unimplemented_count printf(1,"Draft tasks:\n") task_query := base_query & "&cmtitle=Category:Draft_Programming_Tasks" continue_at = req(task_query, print_unimplemented) while continue_at!="" do continue_at = req(task_query&"&cmcontinue="&continue_at, print_unimplemented) end while integer draft_tasks = unimplemented_count-full_tasks printf(1,"%d unimplemented draft tasks found for %s.\n",{draft_tasks,language}) printf(1,"%d unimplemented tasks in total found for %s (out of %d).\n",{unimplemented_count,language,task_count}) end procedure main()
- Output:
Abstract type Active Directory/Connect Active Directory/Search for a user ... Yahoo! search interface 78 unimplemented tasks found for Phix.
PicoLisp
(load "@lib/http.l" "@lib/xm.l")
(de rosettaCategory (Cat)
(let (Cont NIL Xml)
(make
(loop
(client "rosettacode.org" 80
(pack
"mw/api.php?action=query&list=categorymembers&cmtitle=Category:"
Cat
"&cmlimit=200&format=xml"
Cont )
(while (line))
(setq Xml (and (xml?) (xml))) )
(NIL Xml)
(for M (body Xml 'query 'categorymembers)
(link (attr M 'title)) )
(NIL (attr Xml 'query-continue' categorymembers 'cmcontinue))
(setq Cont (pack "&cmcontinue=" @)) ) ) ) )
(de unimplemented (Task)
(diff
(rosettaCategory "Programming_Tasks")
(rosettaCategory Task) ) )PowerShell
I don't think this script follows the spirit of the task, but it works.
function Find-UnimplementedTask
{
[CmdletBinding()]
[OutputType([string[]])]
Param
(
[Parameter(Mandatory=$true,
Position=0)]
[string]
$Language
)
$url = "http://rosettacode.org/wiki/Reports:Tasks_not_implemented_in_$Language"
$web = Invoke-WebRequest $url
$unimplemented = 1
[string[]](($web.AllElements |
Where-Object {$_.class -eq "mw-content-ltr"})[$unimplemented].outerText -split "`r`n" |
Select-String -Pattern "[^0-9A-Z]$" -CaseSensitive)
}
$tasks = Find-UnimplementedTask -Language PowerShell
$tasks[0..5],".`n.`n.",$tasks[-6..-1]
Write-Host "`nTotal unimplemented Tasks: $($tasks.Count)"
- Output:
15 Puzzle Game 2048 24 game/Solve 4-rings or 4-squares puzzle 9 billion names of God the integer AKS test for primes . . . Xiaolin Wu's line algorithm Yahoo! search interface Yin and yang Zebra puzzle Zeckendorf arithmetic Zhang-Suen thinning algorithm Total unimplemented Tasks: 388
Python
"""
Given the name of a language on Rosetta Code,
finds all tasks which are not implemented in that language.
"""
from operator import attrgetter
from typing import Iterator
import mwclient
URL = 'www.rosettacode.org'
API_PATH = '/mw/'
def unimplemented_tasks(language: str,
*,
url: str,
api_path: str) -> Iterator[str]:
"""Yields all unimplemented tasks for a specified language"""
site = mwclient.Site(url, path=api_path)
all_tasks = site.categories['Programming Tasks']
language_tasks = site.categories[language]
name = attrgetter('name')
all_tasks_names = map(name, all_tasks)
language_tasks_names = set(map(name, language_tasks))
for task in all_tasks_names:
if task not in language_tasks_names:
yield task
if __name__ == '__main__':
tasks = unimplemented_tasks('Python', url=URL, api_path=API_PATH)
print(*tasks, sep='\n')
"""
Given the name of a language on Rosetta Code,
finds all tasks which are not implemented in that language.
"""
from functools import partial
from operator import itemgetter
from typing import (Dict,
Iterator,
Union)
import requests
URL = 'http://www.rosettacode.org/mw/api.php'
REQUEST_PARAMETERS = dict(action='query',
list='categorymembers',
cmlimit=500,
rawcontinue=True,
format='json')
def unimplemented_tasks(language: str,
*,
url: str,
request_params: Dict[str, Union[str, int, bool]]
) -> Iterator[str]:
"""Yields all unimplemented tasks for a specified language"""
with requests.Session() as session:
tasks = partial(tasks_titles,
session=session,
url=url,
**request_params)
all_tasks = tasks(cmtitle='Category:Programming_Tasks')
language_tasks = set(tasks(cmtitle=f'Category:{language}'))
for task in all_tasks:
if task not in language_tasks:
yield task
def tasks_titles(*,
session: requests.Session,
url: str,
**params: Union[str, int, bool]) -> Iterator[str]:
"""Yields tasks names for a specified category"""
while True:
request = session.get(url, params=params)
data = request.json()
yield from map(itemgetter('title'), data['query']['categorymembers'])
query_continue = data.get('query-continue')
if query_continue is None:
return
params.update(query_continue['categorymembers'])
if __name__ == '__main__':
tasks = unimplemented_tasks('Python',
url=URL,
request_params=REQUEST_PARAMETERS)
print(*tasks, sep='\n')
Python 2.x
import xml.dom.minidom
import urllib, sys
def findrc(category):
name = "http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:%s&cmlimit=500&format=xml" % urllib.quote(category)
cmcontinue, titles = '', []
while True:
u = urllib.urlopen(name + cmcontinue)
xmldata = u.read()
u.close()
x = xml.dom.minidom.parseString(xmldata)
titles += [i.getAttribute("title") for i in x.getElementsByTagName("cm")]
cmcontinue = filter( None,
(urllib.quote(i.getAttribute("cmcontinue"))
for i in x.getElementsByTagName("categorymembers")) )
if cmcontinue:
cmcontinue = '&cmcontinue=' + cmcontinue[0]
else:
break
return titles
alltasks = findrc("Programming_Tasks")
lang = findrc(sys.argv[1])
for i in [i for i in alltasks if i not in lang]:
print i
Python 3.x
#Aamrun, 3rd February 2023
import xml.dom.minidom
import sys, urllib.parse, urllib.request
def findrc(category):
name = "http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:%s&cmlimit=500&format=xml" % urllib.parse.quote(category)
cmcontinue, titles = '', []
while True:
u = urllib.request.urlopen(name + cmcontinue)
xmldata = u.read()
u.close()
x = xml.dom.minidom.parseString(xmldata)
titles += [i.getAttribute("title") for i in x.getElementsByTagName("cm")]
cmcontinue = list(filter( None,
(urllib.parse.quote(i.getAttribute("cmcontinue"))
for i in x.getElementsByTagName("categorymembers")) ))
if cmcontinue:
cmcontinue = '&cmcontinue=' + cmcontinue[0]
else:
break
return titles
alltasks = findrc("Programming_Tasks")
lang = findrc(sys.argv[1])
for i in [i for i in alltasks if i not in lang]:
print(i)
Page info generator
This example finds and displays unimplemented tasks, draft tasks and omitted tasks.
import logging
from typing import Iterable
from typing import NamedTuple
from typing import Set
import requests
from requests.adapters import HTTPAdapter
from requests.adapters import Retry
logging.basicConfig(level=logging.DEBUG)
URL = "https://rosettacode.org/w/api.php"
CM_QUERY = {
"action": "query",
"generator": "categorymembers",
"format": "json",
"formatversion": "2",
"prop": "info",
"inprop": "url|touched",
"gcmlimit": 500,
}
class PageInfo(NamedTuple):
pageid: int
ns: int
title: str
contentmodel: str
pagelanguage: str
pagelanguagehtmlcode: str
pagelanguagedir: str
touched: str
lastrevid: int
length: int
fullurl: str
editurl: str
canonicalurl: str
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 category_members(category: str, url: str = URL) -> Iterable[PageInfo]:
params = {**CM_QUERY, "gcmtitle": category}
session = get_session()
response = session.get(url, params=params)
response.raise_for_status()
data = response.json()
for page in data["query"]["pages"]:
yield PageInfo(**{k: v for k, v in page.items() if k in PageInfo._fields})
_continue = data.get("continue", {}).get("gcmcontinue")
while _continue:
params["continue"] = data["continue"]["continue"]
params["gcmcontinue"] = _continue
response = session.get(url, params=params)
response.raise_for_status()
data = response.json()
for page in data["query"]["pages"]:
yield PageInfo(**{k: v for k, v in page.items() if k in PageInfo._fields})
_continue = data.get("continue", {}).get("gcmcontinue")
def lang_tasks(language: str) -> Set[PageInfo]:
return set(category_members(f"Category:{language}"))
def omitted_tasks(language: str) -> Set[PageInfo]:
return set(category_members(f"Category:{language}/Omit"))
def unimplemented_tasks(lang_tasks: Set[PageInfo], omitted: Set[PageInfo]) -> Set[str]:
tasks = set(category_members("Category:Programming Tasks"))
return tasks.difference(lang_tasks).difference(omitted)
def unimplemented_draft_tasks(
lang_tasks: Set[PageInfo], omitted: Set[PageInfo]
) -> Set[str]:
tasks = set(category_members("Category:Draft Programming Tasks"))
return tasks.difference(lang_tasks).difference(omitted)
def display(title: str, pages: Iterable[PageInfo]) -> None:
print(title)
for page in pages:
print(" ", page.title, page.canonicalurl)
print("")
if __name__ == "__main__":
lang = lang_tasks("Python")
omitted = omitted_tasks("Python")
display("Programming Tasks", unimplemented_tasks(lang, omitted))
display("Draft Programming Tasks", unimplemented_draft_tasks(lang, omitted))
display("Omitted Tasks", omitted)
R
library(XML)
find.unimplemented.tasks <- function(lang="R"){
PT <- xmlInternalTreeParse( paste("http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:Programming_Tasks&cmlimit=500&format=xml",sep="") )
PT.nodes <- getNodeSet(PT,"//cm")
PT.titles = as.character( sapply(PT.nodes, xmlGetAttr, "title") )
language <- xmlInternalTreeParse( paste("http://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:",
lang, "&cmlimit=500&format=xml",sep="") )
lang.nodes <- getNodeSet(language,"//cm")
lang.titles = as.character( sapply(lang.nodes, xmlGetAttr, "title") )
unimplemented <- setdiff(PT.titles, lang.titles)
unimplemented
}
# Usage
find.unimplemented.tasks(lang="Python")
langs <- c("R","python","perl")
sapply(langs, find.unimplemented.tasks) # fetching data for multiple languages
Racket
#lang racket
(require net/url net/uri-codec json (only-in racket/dict [dict-ref ref]))
(define (RC-get verb params)
((compose1 get-pure-port string->url format)
"http://rosettacode.org/mw/~a.php?~a" verb (alist->form-urlencoded params)))
(define (get-category catname)
(let loop ([c #f])
(define t
((compose1 read-json RC-get) 'api
`([action . "query"] [format . "json"]
[list . "categorymembers"] [cmtitle . ,(format "Category:~a" catname)]
[cmcontinue . ,(and c (ref c 'cmcontinue))] [cmlimit . "500"])))
(define (c-m key) (ref (ref t key '()) 'categorymembers #f))
(append (for/list ([page (c-m 'query)]) (ref page 'title))
(cond [(c-m 'query-continue) => loop] [else '()]))))
;; The above is the required "library" code, same as the "Rosetta
;; Code/Count" entry
(define (show-unimplemented lang)
(for-each displayln (remove* (get-category lang)
(get-category 'Programming_Tasks))))
(show-unimplemented 'Racket) ; see all of the Racket entries
Raku
(formerly Perl 6)
use HTTP::UserAgent;
use URI::Escape;
use JSON::Fast;
use Sort::Naturally;
unit sub MAIN( Str :$lang = 'Raku' );
my $client = HTTP::UserAgent.new;
my $url = 'https://rosettacode.org/w';
my @total;
my @impl;
@total.append: .&get-cat for 'Programming_Tasks', 'Draft_Programming_Tasks';
@impl = get-cat $lang;
say "Unimplemented tasks in $lang:";
my @unimplemented = (@total (-) @impl).keys.sort: *.&naturally;
.say for @unimplemented;
say "{+@unimplemented} unimplemented tasks";
sub get-cat ($category) {
flat mediawiki-query(
$url, 'pages',
:generator<categorymembers>,
:gcmtitle("Category:$category"),
:gcmlimit<350>,
:rawcontinue(),
:prop<title>
).map({ .<title> });
}
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("&") }
- Output:
As of Sept. 2, 2022
Unimplemented tasks in Raku: 3d turtle graphics 15 puzzle game in 3D Addition-chain exponentiation Audio alarm Audio frequency generator Audio overlap loop Binary coded decimal Black box Blackjack strategy Boids Catmull–Clark subdivision surface Chess player CLI-based maze-game Compare sorting algorithms' performance Compiler/AST interpreter Compiler/Preprocessor Compiler/syntax analyzer Create an executable for a program in an interpreted language Cross compilation Cycles of a permutation Diophantine linear system solving Dominoes Elevator simulation Execute Computer/Zero Free polyominoes enumeration Generalised floating point multiplication Hexapawn Honeycombs IRC gateway Morpion solitaire Number triplets game OLE automation OpenGL pixel shader P-Adic square roots Play recorded sounds Red black tree sort Remote agent/Agent interface Remote agent/Agent logic Remote agent/Simulation Simple turtle graphics Solve a Rubik's cube Solving coin problems Sorting algorithms/Tree sort on a linked list Tamagotchi emulator Tetris Ukkonen’s suffix tree construction Unicode polynomial equation Uno (card game) Use a REST API Waveform analysis/Top and tail Weather routing WebGL rotating F 52 unimplemented tasks
Ring
# Project: Rosetta Code/Find unimplemented tasks
load "stdlib.ring"
ros= download("http://rosettacode.org/wiki/Category:Programming_Tasks")
lang = "Ring"
pos = 1
num = 0
totalros = 0
rosname = ""
rostitle = ""
see "Tasks not implemented in " + lang + " language:" + nl
for n = 1 to len(ros)
nr = searchstring(ros,'<li><a href="/wiki/',pos)
if nr = 0
exit
else
pos = nr + 1
ok
nr = searchname(nr)
nr = searchtitle(nr)
next
see nl
see "Total: " + totalros + " examples." + nl
func searchstring(str,substr,n)
newstr=right(str,len(str)-n+1)
nr = substr(newstr, substr)
if nr = 0
return 0
else
return n + nr -1
ok
func searchname(sn)
nr2 = searchstring(ros,'">',sn)
nr3 = searchstring(ros,"</a></li>",sn)
rosname = substr(ros,nr2+2,nr3-nr2-2)
return sn
func searchtitle(sn)
st = searchstring(ros,"title=",sn)
rostitle = substr(ros,sn+19,st-sn-21)
rostitle = "rosettacode.org/wiki/" + rostitle
rostitle = download(rostitle)
s = substr(rostitle,lang)
if s = 0
num = num + 1
totalros = totalros + 1
see "" + num + ". " + rosname + nl
ok
return sn
func count(cstring,dstring)
sum = 0
while substr(cstring,dstring) > 0
sum = sum + 1
cstring = substr(cstring,substr(cstring,dstring)+len(string(sum)))
end
return sumOutput:
Tasks not implemented in Ring language: 1. 15 puzzle solver 2. 2048 3. 24 game/Solve 4. 9 billion names of God the integer 5. Abstract type 6. Active Directory/Search for a user 7. Address of a variable 8. AKS test for primes 9. Align columns 10. Amb ...... 343. Xiaolin Wu's line algorithm 344. XML/DOM serialization 345. XML/Input 346. XML/Output 347. XML/XPath 348. Y combinator 349. Yahoo! search interface 350. Yin and yang 351. Zeckendorf arithmetic 352. Zhang-Suen thinning algorithm Total: 352 examples.
Ruby
Finds tasks that are either not implemented or omitted. Sorts by task creation time.
Uses the RosettaCode module from Count programming examples#Ruby
require 'rosettacode'
require 'time'
module RosettaCode
def self.get_unimplemented(lang)
programming_tasks = []
category_members("Programming_Tasks") {|task| programming_tasks << task}
lang_tasks = []
category_members(lang) {|task| lang_tasks << task}
lang_tasks_omit = []
category_members("#{lang}/Omit") {|task| lang_tasks_omit << task}
[programming_tasks - lang_tasks, lang_tasks_omit]
end
def self.created_time(title)
url = get_api_url({
"action" => "query",
"titles" => title,
"format" => "xml",
"rvlimit" => 500,
"prop" => "revisions",
"rvprop" => "timestamp"
})
doc = REXML::Document.new open(url)
REXML::XPath.each(doc, "//rev").collect do |node|
Time.parse( node.attribute("timestamp").value )
end.min
end
end
puts Time.now
lang = ARGV[0] || "Ruby"
unimplemented, omitted = RosettaCode.get_unimplemented(lang)
unimplemented.collect {|title| [title, RosettaCode.created_time(title)]} .
sort_by {|e| e[1]} .
each do |title, date|
puts "%s %6s %s" % [
date.strftime("%Y-%m-%d"),
omitted.include?(title) ? "[omit]" : "" ,
title
]
end
Output for Ruby
2010-04-05 11:08:07 -0500 2007-01-14 Table creation 2007-01-25 [omit] Pointers and references 2007-02-04 SQL-based authentication 2007-02-09 Metered concurrency 2007-02-27 [omit] Address of a variable 2007-02-27 [omit] Variable size/Set 2007-02-27 Variable size/Get 2007-06-08 OpenGL 2007-06-08 HTTPS/Authenticated 2007-11-06 Pattern matching 2007-11-08 [omit] Parametric polymorphism 2007-11-13 Special characters 2007-12-11 Arithmetic evaluation 2007-12-21 [omit] Proof 2007-12-24 Plot coordinate pairs 2007-12-24 Polynomial regression 2007-12-24 Compare sorting algorithms' performance 2008-03-27 Dragon curve 2008-03-28 Formal power series 2008-09-11 RCRPG 2008-11-02 Active object 2008-11-13 Window creation/X11 2008-12-05 [omit] Constrained genericity 2009-02-17 Rendezvous 2009-03-22 Arena storage pool 2009-05-23 Ray-casting algorithm 2009-05-26 [omit] Memory allocation 2009-05-26 Simulate input/Mouse 2009-05-27 Mouse position 2009-05-27 Keyboard macros 2009-05-27 Window management 2009-05-27 Color of a screen pixel 2009-06-01 HTTPS/Client-authenticated 2009-06-02 Simulate input/Keyboard 2009-06-08 [omit] Create an object at a given address 2009-06-10 Events 2009-06-10 Scope modifiers 2009-08-09 Verify distribution uniformity/Chi-squared test 2009-08-11 Call a function from a foreign language 2009-08-12 Safe addition 2009-12-05 Rate counter 2010-01-02 Loading Animated 3D Data 2010-01-06 Catmull–Clark subdivision surface 2010-01-21 Hough transform 2010-01-25 Compile-time calculation 2010-02-14 Knapsack problem/Bounded 2010-02-21 Deconvolution/1D 2010-02-23 Deconvolution/2D+ 2010-02-24 Knapsack problem/Continuous 2010-03-23 Sutherland-Hodgman polygon clipping 2010-03-23 Find Common Directory Path
Run BASIC
Find tasks not implemented. Select Language from DropDown and click [GO] or [Exit].
WordWrap$ = "style='white-space: pre-wrap;white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap;word-wrap: break-word'"
a$ = httpGet$("http://rosettacode.org/wiki/Category:Programming_Languages")
a$ = word$(a$,2,"mw-subcategories")
a$ = word$(a$,1,"</table>")
i = instr(a$,"/wiki/Category:")
html "<B> Select language from list<BR>"
html "<SELECT name='lang'>"
while i <> 0
j = instr(a$,""" title=""Category:",i)
lang$ = mid$(a$,i+15,j-i-15)
k = instr(a$,""">",j + 18)
langName$ = mid$(a$,j + 18,k-(j+18))
count = count + 1
html "<option value='";lang$;"'>";langName$;"</option>"
i = instr(a$,"/wiki/Category:",k)
wend
html "</select>"
html "<p>Number of Languages:";count;"<BR> "
button #go,"GO", [go]
html " "
button #ex, "Exit", [exit]
wait
[go]
cls
lang$ = #request get$("lang")
h$ = "http://rosettacode.org/wiki/Reports:Tasks_not_implemented_in_";lang$
a$ = httpGet$(h$)
a$ = word$(a$,3,"mw-content-ltr")
html "<table border=1><tr>"
i = instr(a$,"<a href=""/wiki/")
while i > 0
i = instr(a$,"title=""",i)
j = instr(a$,""">",i+7)
if c mod 4 = 0 then html "</tr><tr ";WordWrap$;">"
c = c + 1
html "<td>";mid$(a$,i+7,j-(i+7));"</td>"
i = instr(a$,"<a href=""/wiki/",i+7)
wend
html "</tr></table>"
print "Total unImplemented Tasks:";c
[exit]
end| 24 game/Solve | Abstract type | Accumulator factory | Active Directory/Connect | Active Directory/Search for a user |
| Arena storage pool | Arithmetic/Rational | Arithmetic evaluation | Average loop length | Averages/Mean angle |
| Averages/Mean time of day | Bitcoin/address validation | Bitmap/PPM conversion through a pipe | Bitmap/Read an image through a pipe | Break OO privacy |
| CRC-32 | CSV to HTML translation | Calendar | Calendar - for "real" programmers | Call a function |
| Call an object method | Canny edge detector | Carmichael 3 strong pseudoprimes, or Miller Rabin's nemesis | Catmull–Clark subdivision surface | Chat server |
| Check Machin-like formulas | Cholesky decomposition | Colour pinstripe/Printer | Compare sorting algorithms' performance | Constrained genericity |
| Continued fraction | Continued fraction arithmetic/Continued fraction r2cf(Rational N) | Continued fraction arithmetic/G(matrix NG, Contined Fraction N) | Continued fraction arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2) | Count the coins |
| Zebra puzzle | Zeckendorf number representation |
Total unImplemented Tasks:177
Rust
use std::collections::{BTreeMap, HashSet};
use reqwest::Url;
use serde::Deserialize;
use serde_json::Value;
/// A Rosetta Code task.
#[derive(Clone, PartialEq, Eq, Hash, Debug, Deserialize)]
pub struct Task {
/// The ID of the page containing the task in the MediaWiki API.
#[serde(rename = "pageid")]
pub id: u64,
/// The human-readable title of the task.
pub title: String,
}
/// Encapsulates errors that might occur during JSON parsing.
#[derive(Debug)]
enum TaskParseError {
/// Something went wrong with the HTTP request to the API.
Http(reqwest::Error),
/// There was a problem parsing the API response into JSON.
Json(serde_json::Error),
/// The response JSON contained unexpected keys or values.
UnexpectedFormat,
}
impl From<serde_json::Error> for TaskParseError {
fn from(err: serde_json::Error) -> Self {
TaskParseError::Json(err)
}
}
impl From<reqwest::Error> for TaskParseError {
fn from(err: reqwest::Error) -> Self {
TaskParseError::Http(err)
}
}
/// Represents a category of pages on Rosetta Code, such as "Rust".
struct Category {
name: String,
continue_params: Option<BTreeMap<String, String>>,
}
impl Category {
fn new(name: &str) -> Category {
let mut continue_params = BTreeMap::new();
continue_params.insert("continue".to_owned(), "".to_owned());
Category {
name: name.to_owned(),
continue_params: Some(continue_params),
}
}
}
/// Sends a request to Rosetta Code through the MediaWiki API. If successful, returns the response
/// as a JSON object.
fn query_api(
category_name: &str,
continue_params: &BTreeMap<String, String>,
) -> Result<Value, TaskParseError> {
let mut url = Url::parse("http://rosettacode.org/mw/api.php").expect("invalid URL");
url.query_pairs_mut()
.append_pair("action", "query")
.append_pair("list", "categorymembers")
.append_pair("cmtitle", &format!("Category:{}", category_name))
.append_pair("cmlimit", "500")
.append_pair("format", "json")
.extend_pairs(continue_params);
Ok(reqwest::blocking::get(url)?.json()?)
}
/// Given a JSON object, parses the task information from the MediaWiki API response.
fn parse_tasks(json: &Value) -> Result<Vec<Task>, TaskParseError> {
let tasks_json = json
.pointer("/query/categorymembers")
.and_then(Value::as_array)
.ok_or(TaskParseError::UnexpectedFormat)?;
tasks_json
.iter()
.map(|json| Task::deserialize(json).map_err(From::from))
.collect()
}
impl Iterator for Category {
type Item = Vec<Task>;
fn next(&mut self) -> Option<Self::Item> {
self.continue_params.as_ref()?;
query_api(&self.name, self.continue_params.as_ref()?)
.and_then(|result| {
// If there are more pages of results to request, save them for the next iteration.
self.continue_params =
result
.get("continue")
.and_then(Value::as_object)
.map(|continue_params| {
continue_params
.iter()
.map(|(key, value)| {
(key.to_owned(), value.as_str().unwrap().to_owned())
})
.collect()
});
parse_tasks(&result)
})
.map_err(|err| println!("Error parsing response: {:?}", err))
.ok()
}
}
pub fn all_tasks() -> Vec<Task> {
Category::new("Programming Tasks").flatten().collect()
}
pub fn unimplemented_tasks(lang: &str) -> Vec<Task> {
let all_tasks = all_tasks().iter().cloned().collect::<HashSet<_>>();
let implemented_tasks = Category::new(lang).flatten().collect::<HashSet<_>>();
let mut unimplemented_tasks = all_tasks
.difference(&implemented_tasks)
.cloned()
.collect::<Vec<Task>>();
unimplemented_tasks.sort_by(|a, b| a.title.cmp(&b.title));
unimplemented_tasks
}
fn main() {
for task in find_unimplemented_tasks::unimplemented_tasks("Rust") {
println!("{:6} {}", task.id, task.title);
}
}
- Output:
2973 Active Directory/Search for a user 2135 Add a variable to a class instance at runtime 22638 Bioinformatics/Sequence mutation 23073 Biorhythms 3219 Bitmap/Bézier curves/Cubic 3213 Bitmap/Bézier curves/Quadratic 3226 Bitmap/Histogram 3218 Bitmap/Midpoint circle algorithm 3217 Bitmap/PPM conversion through a pipe 3225 Bitmap/Read a PPM file 3246 Bitmap/Read an image through a pipe 10244 Break OO privacy 7508 Bulls and cows/Player 9832 Calendar - for "REAL" programmers 11471 Canny edge detector 5279 Catmull–Clark subdivision surface 12552 Check Machin-like formulas 22349 Chernick's Carmichael numbers 22212 Chowla numbers 23287 Cistercian numerals 4268 Color of a screen pixel 10293 Color quantization 9749 Colour pinstripe/Display 9748 Colour pinstripe/Printer 13300 Combinations and permutations 17481 Commatizing numbers 2438 Compare sorting algorithms' performance 21167 Compiler/AST interpreter 21169 Compiler/code generator 21046 Compiler/lexical analyzer 21137 Compiler/syntax analyzer 21170 Compiler/virtual machine interpreter 22714 Cyclotomic polynomial 22500 De Bruijn sequences 9404 Death Star 6107 Deconvolution/1D 6110 Deconvolution/2D+ 14060 Deming's Funnel 21228 Determine if two triangles overlap 17509 Digital root/Multiplicative digital root 9965 Dinesman's multiple-dwelling problem 22595 Display an outline as a nested table 2102 Distributed programming 21206 Diversity prediction theorem 3273 Doubly-linked list/Definition 4888 Doubly-linked list/Traversal 8974 Draw a cuboid 19095 Draw a rotating cube 4297 Dynamic variable names 21942 EKG sequence convergence 22189 Eban numbers 21218 Eertree 17421 Elementary cellular automaton/Infinite length 22032 Elliptic Curve Digital Signature Algorithm 12635 Elliptic curve arithmetic 9371 Executable library 2843 Execute SNUSP 23157 Exponentiation with infix operators in (or operating on) the base 22649 Faces from a mesh 22098 Factorial base numbers indexing permutations of a collection 22459 Factorions 19860 Faulhaber's formula 21408 Faulhaber's triangle 21786 Feigenbaum constant calculation 12308 Find largest left truncatable prime in a given base 17454 Find palindromic numbers in both binary and ternary bases 9996 First class environments 22334 First perfect square in base n with n unique digits 22699 First power of 2 that has leading decimal digits of 12 1788 Flow-control structures 2783 Formal power series 2420 Forward difference 22506 Fraction reduction 17107 Fractran 21109 French Republican calendar 10768 Function frequency 10110 Function prototype 19505 Functional coverage tree 8058 GUI component interaction 8059 GUI enabling/disabling of controls 8843 GUI/Maximum window dimensions 9552 Galton box animation 3996 Gamma function 22619 Gapful numbers 21753 Gauss-Jordan matrix inversion 4996 Go Fish 22793 Graph colouring 3224 Grayscale image 9751 Greyscale bars/Display 4291 HTTPS/Client-authenticated 10707 Hofstadter Figure-Figure sequences 6245 Hofstadter-Conway $10,000 sequence 7622 Holidays related to Easter 9782 Honeycombs 7588 Horizontal sundial calculations 5346 Hough transform 22492 Humble numbers 17428 Idiomatically determine all the characters that can be used for symbols 3228 Image convolution 8370 Image noise 21308 Imaginary base numbers 17613 Index finite lists of positive integers 22565 Intersecting number wheels 1998 Introspection 9828 Inverted syntax 23001 Isqrt (integer square root) of X 9763 Joystick position 9722 Jump anywhere 9891 Kaprekar numbers 8432 Keyboard input/Flush the keyboard buffer 8434 Keyboard input/Keypress check 4263 Keyboard macros 6046 Knapsack problem/Bounded 3196 Knapsack problem/Unbounded 19210 Knuth's power tree 21302 Kosaraju 22467 Lah numbers 21584 Largest number divisible by its digits 22424 Latin Squares in reduced form 22003 Law of cosines - triples 19103 List rooted trees 2228 Literals/String 22821 Long literals, with continuations 3851 Long multiplication 21733 Loops/Increment loop index within loop body 21990 Loops/With multiple ranges 21994 Loops/Wrong ranges 17325 Lucky and even lucky numbers 22107 Matrix digital rain 3230 Median filter 1991 Memory layout of a data structure 23353 Merge and aggregate datasets 22710 Mertens function 22608 Metallic ratios 10462 Metronome 22215 Mian-Chowla sequence 22664 Minimal steps down to 1 23296 Minkowski question-mark function 23539 Modified random distribution 12952 Modular arithmetic 20014 Monads/List monad 20016 Monads/Maybe monad 20022 Monads/Writer monad 18481 Multi-dimensional array 12576 Multifactorial 4456 Multiple regression 2400 Multiplicative order 9299 Multisplit 13149 Musical scale 4451 Named parameters 9454 Natural sorting 12953 Nautical bell 21855 Nested templated data 2778 Non-continuous subsequences 23075 Non-transitive dice 16746 Nonogram solver 10185 Numeric error propagation 22048 Numerical and alphabetical suffixes 9805 Numerical integration/Gauss-Legendre Quadrature 10147 OLE automation 10773 Odd word problem 18243 One-time pad 11982 OpenWebNet password 12237 Operator precedence 17599 Order disjoint list items 9223 Ordered partitions 23454 P-Adic numbers, basic 23470 P-Adic square roots 21652 P-value correction 23570 Padovan n-step number sequences 23149 Pancake numbers 10974 Paraffins 4878 Parametrized SQL statement 10993 Parsing/RPN to infix conversion 9391 Partial function application 19012 Pascal matrix generation 2770 Pascal's triangle/Puzzle 20044 Pathological floating point problems 22237 Peaceful chess queen armies 22161 Pell's equation 19037 Pentagram 15821 Percolation/Bond percolation 15850 Percolation/Mean cluster density 15846 Percolation/Mean run density 15836 Percolation/Site percolation 22093 Perfect totient numbers 12099 Permutations by swapping 9631 Permutations/Derangements 12454 Permutations/Rank of a permutation 22476 Pierpont primes 12298 Pig the dice game/Player 9745 Pinstripe/Display 9746 Pinstripe/Printer 4366 Play recorded sounds 13455 Playfair cipher 2435 Plot coordinate pairs 1784 Pointers and references 3094 Polymorphic copy 1968 Polymorphism 4397 Polynomial long division 2436 Polynomial regression 20435 Polyspiral 10639 Pragmatic directives 22678 Primality by Wilson's theorem 18777 Primes - allocate descendants to their ancestors 7941 Problem of Apollonius 23045 Pseudo-random numbers/Combined recursive generator MRG32k3a 23039 Pseudo-random numbers/PCG32 23038 Pseudo-random numbers/Xorshift star 10734 Pythagoras tree 9939 QR decomposition 22293 Ramanujan's constant 22365 Random Latin squares 23477 Random sentence from book 17751 Ranking methods 5179 Rate counter 21939 Recaman's sequence 9054 Record sound 21019 Reflection/Get source 21022 Reflection/List methods 21023 Reflection/List properties 3559 Rendezvous 10354 Resistor mesh 4317 Respond to an unknown method call 21365 Retrieve and search chat history 3149 Roots of a quadratic function 3357 Rosetta Code/Find unimplemented tasks 21688 Rosetta Code/Rank languages by number of users 3315 Rosetta Code/Rank languages by popularity 3557 Runtime evaluation 3556 Runtime evaluation/In an environment 1678 SOAP 1912 SQL-based authentication 4723 Safe addition 22006 Safe primes and unsafe primes 19083 Sailors, coconuts and a monkey problem 12228 Same fringe 4362 Scope modifiers 12940 Scope/Function names and labels 23112 Self numbers 10406 Send an unknown method call 4467 Send email 19255 Sequence of primorial primes 22268 Sequence: nth number with exactly n divisors 22259 Sequence: smallest number greater than previous term with exactly n divisors 11690 Set consolidation 10590 Set of real numbers 12906 Set puzzle 4679 Seven-sided dice from five-sided dice 21557 Shoelace formula for polygonal area 12961 Shortest common supersequence 10750 Simple database 2501 Singleton 9801 Sokoban 17663 Solve a Holy Knight's tour 17657 Solve a Hopido puzzle 17656 Solve a Numbrix puzzle 18017 Solve the no connection puzzle 23050 Sort an outline at every level 8099 Sorting algorithms/Bead sort 15995 Sorting algorithms/Patience sort 2853 Sorting algorithms/Permutation sort 9526 Sorting algorithms/Strand sort 4966 Soundex 2227 Special characters 9850 Special variables 9468 Speech synthesis 23564 Square Form Factorization 7892 Stable marriage problem 4197 Stack traces 4924 Stair-climbing puzzle 10077 Start from a main routine 10410 State name puzzle 10159 Statistics/Normal distribution 5219 Stem-and-leaf plot 18358 Stern-Brocot sequence 22465 Stirling numbers of the first kind 22466 Stirling numbers of the second kind 9882 Straddling checkerboard 20956 Stream merge 8644 Strip block comments 9875 Strip control codes and extended characters from a string 22088 Strong and weak primes 19060 Subleq 19649 Substitution cipher 10198 Subtractive generator 22295 Successive prime differences 22055 Suffixation of decimal numbers 19053 Sum and product puzzle 21263 Sum to 100 10366 Summarize and say sequence 21914 Sunflower fractal 19672 Superellipse 18234 Superpermutation minimisation 1676 Table creation/Postal addresses 23375 Tau function 10052 Terminal control/Cursor movement 8413 Terminal control/Cursor positioning 8423 Terminal control/Dimensions 8596 Terminal control/Display an extended character 8595 Terminal control/Hiding the cursor 8597 Terminal control/Inverse video 8418 Terminal control/Positional read 9380 Terminal control/Preserve screen 10505 Terminal control/Unicode output 17719 Test integerness 3104 Text processing/1 3111 Text processing/2 21761 The Name Game 20692 Tonelli-Shanks algorithm 12844 Topic variable 12627 Topswops 12310 Total circles area 22586 Tree datastructures 23450 Tree from nesting levels 12318 Twelve statements 22636 UPC 23467 Untouchable numbers 9733 Update a configuration file 4482 User input/Graphical 9349 Van der Corput sequence 1986 Variable size/Set 8488 Variable-length quantity 4470 Variables 2868 Variadic function 4688 Verify distribution uniformity/Chi-squared test 4680 Verify distribution uniformity/Naive 9889 Video display modes 16103 Vogel's approximation method 22228 Weird numbers 3109 Window creation/X11 4266 Window management 20673 Word search 22991 Word wheel 17721 World Cup group stage 2433 Write float arrays to a text file 1760 XML/DOM serialization 1643 XML/XPath 3998 Xiaolin Wu's line algorithm 4124 Yahoo! search interface 9410 Yin and yang 10989 Zebra puzzle 12489 Zeckendorf arithmetic 12371 Zeckendorf number representation 16497 Zhang-Suen thinning algorithm
Scala
Add to `build.sbt`
libraryDependencies ++= Seq(
"org.json4s"%%"json4s-native"%"3.6.0",
"com.softwaremill.sttp"%%"core"%"1.5.11",
"com.softwaremill.sttp"%%"json4s"%"1.5.11")
import com.softwaremill.sttp.json4s._
import com.softwaremill.sttp.quick._
implicit val serialization = org.json4s.native.Serialization
import org.json4s.DefaultFormats
implicit val formats = DefaultFormats
case class Task(pageid: Int, title: String)
case class Category(categorymembers: List[Task])
case class Query(query: Category)
List("Programming Tasks", "Scala")
.map { title =>
sttp
.get(uri"http://www.rosettacode.org/mw/api.php?action=query&list=categorymembers&cmtitle=Category:${title}&cmlimit=1000&format=json")
.header("User-Agent", mozillaUserAgent)
.response(asJson[Query])
.send()
.body
}
.map {
case Right(r) => r.query.categorymembers.toSet
case Left(s) => Set.empty[Task]
}
.foldRight(Set.empty[Task])((acc: Set[Task], ele: Set[Task]) => acc -- ele)
Tcl
First, find all members of the Programming_Tasks category,
then find all members of the $lang category.
The difference is the list of unimplemented tasks.
package require Tcl 8.5
package require http
package require json
package require struct::set
fconfigure stdout -buffering none
# Initialize a cache of lookups
array set cache {}
proc log msg {
#puts -nonewline $msg
}
proc get_tasks {category} {
global cache
if {[info exists cache($category)]} {
return $cache($category)
}
set base_url http://www.rosettacode.org/mw/api.php
set query {
action query
list categorymembers
cmtitle Category:%s
format json
cmlimit 500
}
set query [list {*}$query]; # remove excess whitespace
set this_query [dict create {*}[split [format $query $category]]]
set tasks [list]
while {1} {
set url [join [list $base_url [http::formatQuery {*}$this_query]] ?]
while 1 {
set response [http::geturl $url]
# Process redirects
if {[http::ncode $response] == 301} {
set newurl [dict get [http::meta $response] Location]
if {[string match http://* $newurl]} {
set url $newurl
} else {
set url [regexp -inline {http://[^/]+} $url]
append url $newurl
}
continue
}
# Check for oopsies!
if {
[set s [http::status $response]] ne "ok"
|| [http::ncode $response] != 200
} then {
error "Oops: url=$url\nstatus=$s\nhttp code=[http::code $response]"
}
break
}
# Get the data out of the message
set data [json::json2dict [http::data $response]]
http::cleanup $response
# add tasks to list
foreach task [dict get $data query categorymembers] {
lappend tasks [dict get [dict create {*}$task] title]
}
if {[catch {
dict get $data query-continue categorymembers cmcontinue
} continue_task]} then {
# no more continuations, we're done
break
}
dict set this_query cmcontinue $continue_task
}
return [set cache($category) $tasks]
}
proc get_unimplemented {lang} {
set tasks [get_tasks Programming_Tasks]
set collected [get_tasks Collection_Members]
set doneTasks [get_tasks $lang]
set omittedTasks [get_tasks $lang/Omit]
# Map generic collection task categories to specific ones
set tasks [regsub -all {Category:(\S+)} $tasks "\\1/$lang"]
set collectOfLang [struct::set intersect $collected $doneTasks]
set ignorable [struct::set union $doneTasks $omittedTasks $collectOfLang]
set unimplemented [struct::set difference $tasks $ignorable]
puts "\n$lang has [llength $unimplemented] unimplemented programming tasks:"
if {[llength $unimplemented]} {
puts " [join [lsort $unimplemented] "\n "]"
}
}
catch {console show}
catch {wm withdraw .}
foreach lang {Perl Python Ruby Tcl} {
get_unimplemented $lang
}
VBScript
The program creates a dictionary with all tasks then adds the draft tasks to it then checks the language page and removes the tasks listed as implemented. At the end it prints a tab separed list of names and urls, ready to be cut and pasted in any spreadsheet. Changing the constant lang allows to check for other languages. Don't forget to run it with CScript!!
Set http= CreateObject("WinHttp.WinHttpRequest.5.1")
Set oDic = WScript.CreateObject("scripting.dictionary")
start="https://rosettacode.org"
Const lang="VBScript"
Dim oHF
gettaskslist "about:/wiki/Category:Programming_Tasks" ,True
print odic.Count
gettaskslist "about:/wiki/Category:Draft_Programming_Tasks",True
print "total tasks " & odic.Count
gettaskslist "about:/wiki/Category:"&lang,False
print "total tasks not in " & lang & " " &odic.Count & vbcrlf
For Each d In odic.keys
print d &vbTab & Replace(odic(d),"about:", start)
next
WScript.Quit(1)
Sub print(s):
On Error Resume Next
WScript.stdout.WriteLine (s)
If err= &h80070006& Then WScript.echo " Please run this script with CScript": WScript.quit
End Sub
Function getpage(name)
Set oHF=Nothing
Set oHF = CreateObject("HTMLFILE")
http.open "GET",name,False ''synchronous!
http.send
oHF.write "<html><body></body></html>"
oHF.body.innerHTML = http.responsetext
Set getpage=Nothing
End Function
Sub gettaskslist(b,build)
nextpage=b
While nextpage <>""
nextpage=Replace(nextpage,"about:", start)
WScript.Echo nextpage
getpage(nextpage)
Set xtoc = oHF.getElementbyId("mw-pages")
nextpage=""
For Each ch In xtoc.children
If ch.innertext= "next page" Then
nextpage=ch.attributes("href").value
': WScript.Echo nextpage
ElseIf ch.attributes("class").value="mw-content-ltr" Then
Set ytoc=ch.children(0)
'WScript.Echo ytoc.attributes("class").value '"mw-category mw-category-columns"
Exit For
End If
Next
For Each ch1 In ytoc.children 'mw-category-group
'WScript.Echo ">" &ch1.children(0).innertext &"<"
For Each ch2 In ch1.children(1).children '"mw_category_group".ul
Set ch=ch2.children(0)
If build Then
odic.Add ch.innertext , ch.attributes("href").value
else
if odic.exists(ch.innertext) then odic.Remove ch.innertext
End if
'WScript.Echo ch.innertext , ch.attributes("href").value
Next
Next
Wend
End Sub
- Output:
15 puzzle solver https://rosettacode.org/wiki/15_puzzle_solver 2048 https://rosettacode.org/wiki/2048 21 game https://rosettacode.org/wiki/21_game 24 game https://rosettacode.org/wiki/24_game 24 game/Solve https://rosettacode.org/wiki/24_game/Solve 4-rings or 4-squares puzzle https://rosettacode.org/wiki/4-rings_or_4-squares_puzzle 9 billion names of God the integer https://rosettacode.org/wiki/9_billion_names_of_God_the_integer Abbreviations, easy https://rosettacode.org/wiki/Abbreviations,_easy .....
Wren
An embedded program so we can use the libcurl library.
/* Rosetta_Code_Find_unimplemented_tasks.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 p1 = Pattern.new("title/=\"[+1^\"]\"")
var p2 = Pattern.new("cmcontinue/=\"[+1^\"]\"")
var findTasks = Fn.new { |category|
var url = "https://www.rosettacode.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:%(category)&cmlimit=500&format=xml"
var cmcontinue = ""
var tasks = []
while (true) {
var content = getContent.call(url + cmcontinue)
var matches1 = p1.findAll(content)
for (m in matches1) {
var title = m.capsText[0].replace("'", "'").replace(""", "\"")
tasks.add(title)
}
var m2 = p2.find(content)
if (m2) cmcontinue = "&cmcontinue=%(m2.capsText[0])" else break
}
return tasks
}
var tasks1 = findTasks.call("Programming_Tasks") // 'full' tasks only
var tasks2 = findTasks.call("Draft_Programming_Tasks")
var lang = "Wren"
var langTasks = findTasks.call(lang) // includes draft tasks
curl.easyCleanup()
System.print("Unimplemented 'full' tasks in %(lang):")
for (task in tasks1) {
if (!langTasks.contains(task)) System.print(" " + task)
}
System.print("\nUnimplemented 'draft' tasks in %(lang):")
for (task in tasks2) {
if (!langTasks.contains(task)) System.print(" " + task)
}
which we embed in the following C program, build and run.
/* gcc Rosetta_Code_Find_unimplemented_tasks.c -o Rosetta_Code_Find_unimplemented_tasks -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_Find_unimplemented_tasks.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;
}
- Output:
Unimplemented 'full' tasks in Wren: Unimplemented 'draft' tasks in Wren: Continued fraction convergents
zkl
Uses shared libraries YAJL and cURL.
var [const] YAJL=Import("zklYAJL")[0], CURL=Import("zklCurl");
fcn getTasks(language){
continueValue,tasks:="",Data(0,String); // "nm\0nm\0...."
do{
page:=CURL().get(("http://rosettacode.org/mw/api.php?"
"action=query&cmlimit=500"
"&format=json"
"&list=categorymembers"
"&cmtitle=Category:%s"
"&cmcontinue=%s").fmt(language,continueValue));
page=page[0].del(0,page[1]); // get rid of HTML header
json:=YAJL().write(page).close();
json["query"]["categorymembers"].pump(tasks,T("get","title"));
continueValue=json.find("continue") //continue:-||,cmcontinue:page|954|19)
.toList().apply("concat","=").concat("&");
}while(continueValue);
tasks
}
allTasks:=getTasks.future("Programming_Tasks"); // threadlanguage:="zkl";
tasks:=getTasks(language);
langTasks:=Dictionary(); tasks.pump(Void,langTasks.add.fp1(Void));
unimplementedTasks:=allTasks.filter('wrap(nm){ (not langTasks.holds(nm)) });
println("Found %d unimplemented tasks for %s:"
.fmt(unimplementedTasks.len(1),language));
unimplementedTasks.pump(Console.println);- Output:
Found 166 unimplemented tasks for zkl: 15 Puzzle Game 2048 Address of a variable Animate a pendulum ... Zeckendorf arithmetic Zhang-Suen thinning algorithm