Walaupun> <> bukan bahasa populer, ini bisa baik untuk bermain golf dan telah digunakan di situs web ini. Itu terinspirasi oleh Befunge dan memiliki beberapa kesamaan dalam instruksinya.

Perintah yang Diperlukan:

> < ^ v
Mengubah arah penunjuk instruksi (kanan, kiri, atas, bawah)
/ \ | _ #
Mirror; pointer akan berubah arah tergantung pada arah yang sudah dimilikinya.
x
Arah acak.
+ - * , %
Penambahan, pengurangan, perkalian, divisi dan modulo, masing-masing. Pops A dan B dari stack, dan mendorong operator B A. Division dengan 0 menimbulkan kesalahan.
0-9 a-f
Dorong nilai yang sesuai ke tumpukan. a = 10, ..., f = 15
=
Pops A dan B dari stack, dan mendorong 1 jika B = A, dan 0 sebaliknya.
)
Lebih besar dari. Pops A dan B dari tumpukan, dan tekan 1 jika B <A
(
Kurang dari. Pops A dan B dari tumpukan, dan mendorong 1 jika B> A
' "
Mengaktifkan string parsing. Penguraian string mendorong setiap karakter yang ditemukan ke tumpukan hingga menemukan kutipan penutup.
!
Melewati instruksi berikut.
?
Melewati instruksi berikut jika puncak tumpukan nol, atau tumpukan kosong. (catatan: ini tidak mengeluarkan apa pun dari tumpukan!)
:
Gandakan nilai teratas pada tumpukan.
~
Menghapus nilai teratas dari tumpukan.
$
Putar nilai 2 teratas pada tumpukan searah jarum jam, masing-masing. (mis. jika tumpukan Anda 1,2,3,4, akan menghasilkan 1,2,4,3) Putar
@
nilai 3 teratas pada tumpukan searah jarum jam, masing-masing. (mis. jika tumpukan Anda 1,2,3,4, akan menghasilkan 1,4,2,3)
&
Pops nilai teratas dari tumpukan dan memasukkannya ke dalam registri. Memanggil & lagi akan mengambil nilai dalam registri dan meletakkannya kembali di tumpukan.
r
Membalik tumpukan.
}
Menggeser tumpukan ke kanan / memutar seluruh tumpukan searah jarum jam (misal 1,2,3,4 menjadi 4,1,2,3
{
Menggeser tumpukan ke kiri / memutar seluruh tumpukan berlawanan arah jarum jam (misal 1,2,3,4 menjadi 2,3,4,1
g
Pops A dan B dari tumpukan, dan mendorong nilai pada B, A dalam kotak kode.
p
Pops A, B, dan C dari tumpukan, dan mengubah nilai pada C, B ke A.
o
Pops dan output sebagai karakter
n
Pops dan output nilai
i
Mengambil satu karakter sebagai input pengguna dan mendorong nilai ASCII ke stack.
;
Berakhir eksekusi

Threading tidak perlu diterapkan, meskipun Anda bisa jika Anda mau.

Jawaban terpendek menang, dalam hal seri, jawaban pertama menang.

Anda dapat menggunakan bahasa apa pun, dan eval diizinkan.

File akan disediakan melalui argumen baris perintah dan akan memiliki .fishekstensi.

Anda dapat menggunakan juru bahasa Python resmi sebagai referensi jika diperlukan. Artikel Esolangs Wiki memiliki lebih banyak informasi tentang cara kerja bahasa tersebut, bersama dengan beberapa contoh lainnya.

Kasus uji:

Halo Dunia!
Kode:

"Hello World!"r>?o?<;

Keluaran:

Hello World!

Kode faktorial :

01::nv
:@*:n>84*o$1+

Output (Hingga 5):

1 2 6 24 120

APL (Dyalog) (750)

Karena APL tidak benar-benar memiliki baris perintah, muat ini ke dalam ruang kerja (yaitu dengan )ed F) dan kemudian jalankan dari garis APL seperti:

      F'quine.fish'
"ar00g!;oooooooooo|

      F'hello.fish'
Hello World!

      F'stack.fish'
12543

Itu tidak menangani kesalahan. Perilaku kode yang salah tidak ditentukan. Tidak dapat melakukan utas baik. Di mana halaman Esolang dan konflik pertanyaan, ia mengikuti pertanyaan.

Sunting: versi yang sedikit lebih mudah dibaca dengan komentar dapat ditemukan di sini: https://gist.github.com/anonymous/6428866

F f
⎕IO←0
S←⍬
i←''
s←,0
D←4 2⍴D,⌽D←0 1 0 ¯1
p←0 0
v←0
r←⍬
d←0 1
M←d↓↑M⊂⍨10=M←13~⍨10,83 ¯1⎕MAP f
W←{p+←d⋄p|⍨←⍴M⋄p}
R←{⌽{v←⊃⌽S⋄S↓⍨←¯1⋄v}¨⍳⍵}
U←⎕UCS
→v/43
{L←(⍴S)-⊃⌽s
⍵∊G←'><^v':d∘←D[G⍳⍵;]
⍵∊G←'\/':d∘←⌽d×1-2×G⍳⍵
⍵∊G←'|_#':d×←⊃(1 ¯1)(¯1 1)(¯1 ¯1)[G⍳⍵]
⍵∊'x':d∘←D[?4;]
(((~×⊃⌽S)∨L≤0)∧⍵∊'?')∨⍵∊'!':{}W⍬
⍵∊'.':p∘←R 2
⍵∊G←⎕D,'abcdef':S,←G⍳⍵
⍵∊G←'+-=*,)(':S,←⊃(⍎'+-=×,><'[G⍳⍵])/R 2
⍵∊'%':S,←⊃|⍨/R 2
⍵∊'"''':v V∘←1,U⍵
⍵∊':':S,←2/R 1
⍵∊'~':{}R 1
⍵∊'$@':S,←¯1⌽R 2+⍵='@'
⍵∊G←'{}':S,←(1-2×G⍳⍵)⌽R L
⍵∊'r':S,←⌽R L
⍵∊'l':S,←L
⍵∊'[':s,←1-⍨L-R 1
⍵∊']':s↓⍨←¯1
⍵∊G←'no':⍞←(U⍣(G⍳⍵))R 1
⍵∊'&':{⍴r:r∘←⍬⊣S,←r⋄r,←R 1}⍬
⍵∊'i':i↓⍨←1⊣S,←⊃{i∘←10,⍨U⍞}⍣(⊃~×⍴i)⍨i
⍵∊'g':S,←M⌷⍨⌽R 2
⍵∊'p':((⌽1↓G)⌷M)∘←⊃G←R 3
⍵∊';':S∘←0
s≡⍬:s∘←,0⊣S∘←⍬
}U p⌷M
→45
{}{+S,←p⌷M}⍣{V=M⌷⍨W⍬}⍬
v←0
{}W⍬
→14/⍨S≢0

Delphi, 1144

Semua kecuali instruksi pengarahan diimplementasikan.

 var f:TextFile;c,k,s:String;i,m,b,v,w,x,y,A,l:Int16;procedure U(v:Int16);begin s:=s+Chr(v)end;function O:Int32;begin if l=0then Exit(0);O:=Ord(s[l]);Delete(s,l,1);Dec(l)end;procedure T(a,b:Int16);begin x:=a;y:=b;end;procedure E;begin v:=(v+x+80)mod 80;w:=(w+y+25)mod 25;i:=Ord(c[1+v+80*w])end;begin Assign(f,ParamStr(1));Reset(f);for A:=1to 25do begin ReadLn(f,k);c:=c+k+StringOfChar(' ',80-Length(k))end;x:=1;v:=-1;repeat E;k:=s;l:=Length(k);A:=i;case i-32of 2,7:repeat E;U(i);Inc(l)until i=A;4,5,8,9,12,13,26,32,71,80,93:A:=O;6:b:=1-b;88:i:=Ord('<>^v'[1+Random(4)]);91:l:=1;73:Read(PChar(@A)^)end;case i-32of 4:l:=l+1;80:l:=O;91:A:=O;93:l:=2;26:U(A)end;case i-32of 0:;1:E;2,7,94:O;3:T(-x,-y);4,32,93:Insert(Chr(A),s,l-1);5:U(O mod A);6:if b=0then U(m)else m:=O;8:U(Ord(O>A));9:U(Ord(O<A));10:U(O*O);11:U(O+O);12:U(O div A);13:U(O-A);15:T(-y,-x);16..25:U(i-48);26,73,91:U(A);28:T(-1,0);29:U(Ord(O=O));30:T(1,0);31:if(l=0)or(k[l]=#0)then E;60:T(y,x);62:T(0,-1);63:T(x,-y);65..70:U(i-87);71:U(Ord(c[1+O+80*A]));78:Write(O);79:Write(Chr(O));80:c[1+O+80*l]:=Chr(A);82:for A:=1to(l)do s[A]:=k[l-A+1];86:T(0,1);92:T(-x,y)else Exit;end;until 0=1;end.

Kode indentasi dan komentar berbunyi:

{debug}uses Windows;{}
var
  // f is the source file
  f:TextFile;
  // c is the entire codebox (a 2-dimensional program)
  c,
  // k is a temporary stack copy, needed for reversal
  k,
  // s is the stack (kept as a string)
  s:String;
  // i is the current instruction read from the program
  i,
  // m is the registry memory value (read/written by the '&' instruction)
  m,
  // b indicates if the registry should be written (b=0) or read (b>0) by the '&' instruction
  b,
  // v,w are x,y positions into the program
  v,w,
  // x,y are steps in the respective direction (values -1,0 or 1) :
  x,y,
  // A is a temporary variable (only uppercase var, to coincide with comments)
  A,
  // l is the length of the stack (may be abused as a temporary)
  l
  :Int16;

procedure U(v:Int16); // PUSH
begin
  // Push value onto the stack:
  s:=s+Chr(v)
end;

function O:Int32; // POP
begin
  // Pop value from the stack :
  if l=0then Exit(0);
  O:=Ord(s[l]);
  Delete(s,l,1);
  Dec(l)
end;

procedure T(a,b:Int16); // TURN
begin
  // Turn in a new direction :
  x:=a;
  y:=b;
end;

procedure E; // STEP
begin
{debug}Sleep(10);{}
  // Note : x-step needs to stay on same line, y-step needs to stay on same column
  v:=(v+x+80)mod 80;
  w:=(w+y+25)mod 25;
  i:=Ord(c[1+v+80*w])
end;

begin
  // Open file given at the command-line, and read & expand it's lines into our program buffer :
  Assign(f,ParamStr(1));
  Reset(f);
  for A:=1to 25do
  begin
    ReadLn(f,k);
    c:=c+k+StringOfChar(' ',80-Length(k))
    {debug};SetLength(c,A*80)
  end;
  x:=1;
  v:=-1;
  repeat
    // Take a step (which gives a new 'i'nstruction) and make a copy of the stack :
    E;
    k:=s;
    // Note : 'l' is used to get an element from the stack. So this gives pops from the top.
    l:=Length(k);
    // Shorten '''' and '"' (case 2 and 7) string-collecting, by remembering the quote character in A :
    A:=i;

    // Prevent begin+end pairs by handling instructions in 3 consecutive case blocks; This is applied to
    // all situations where this saves 1 or more characters, justifying the cost for another case-block.

    // Shorten a few cases by preparing variables so they can be shared with eachother and the 3rd case-block below :
    case i-32of // Note : The instruction is decreased by 32, resulting in less digits in the cases below!
      // Shorten string-collecting, by pushing the entire string here (the opening quote was remembered in A) :
      2,7:repeat E;U(i);Inc(l)until i=A; // Note :  We stop at the closing character, so the next block will still handle 'i'!
      // These instructions all need to Pop A, so write it just once here :
      4,5,8,9,12,13,26,32,71,80,93:A:=O;
      // Prevent begin+end for register access, by switching the read/write flag here :
      6:b:=1-b;
      // Shorten 'x' (case 120>88): Choose a random direction instruction and let the 3rd case-block handle it :
      88:i:=Ord('<>^v'[1+Random(4)]);
      // Shorten '{' (case 123-32=91): Share 3rd case-block with ':' (>26) and 'i' (>73) by setting l to 1 here :
      91:l:=1;
      // Prevent begin+end for input retrieval, by reading the input into A here :
      73:Read(PChar(@A)^) // Note : This case is last, because it ends on ')', which avoids a closing ';'
    end;

    // Shorten a few more cases by preparing variables so they can be shared with eachother and the 3rd case-block below :
    case i-32of // Note : The instruction is decreased by 32, resulting in less digits in the cases below!
      // Shorten '$' (case 38-32=4): Set 'l' to l+1 so that the 3rd case-block can insert just like '@' and '}' :
      4:l:=l+1;
      // Shorten 'p' (case 112-32=80): Set 'l' to O() so that the 3rd case-block doesn't need a begin+end pair :
      80:l:=O;
      // Shorten '{' (case 123-32=91): Share 3rd case-block with ':' (>26) and 'i' (>73) by popping A from position 1, as tricked above!:
      91:A:=O; // Note : This is NOT the same as doing this in the 1st case-block, as 'l' needs to be 1 first!
      // Shorten '}' (case 125-32=93): Prepare 'l' so that the implementation can be shared with '@' (>32):
      93:l:=2;
      // Shorten ':' (case 58-32=26): Share implementation with 'i' (>73) by pushing first copy of A (read above) here
      26:U(A) // Note : This case is last, because it ends on ')', which avoids a closing ';'
    end;

    // This 3rd case-block contains the final code for all statements (is there's no case here, it's an error) :
    case i-32of // Note : The instruction is decreased by 32, resulting in less digits in the cases below!
      //' ': Ignore spaces
      0:;
      //'!': Skips the following instruction.
      1:E;
      //'"','''': Enables string parsing. String parsing pushes every character found to the stack until it finds a closing quote.
      //'~': Removes the top value from the stack.
      2,7,94:O;
      //'#': Mirror both axes
      3:T(-x,-y);
      //'$': Rotates the top 2 values on the stack clockwise, respectively. (eg. if your stack is 1,2,3,4, would result in 1,2,4,3)
      //'@': Rotates the top 3 values on the stack clockwise, respectively. (eg. if your stack is 1,2,3,4, would result in 1,4,2,3)
      //'}': Shifts the stack to the right / rotates entire stack clockwise (e.g. 1,2,3,4 becomes 4,1,2,3)
      4,
      32,
      93:Insert(Chr(A),s,l-1); // Note : A was Popped in 1st case block
      //'%': Pops A and B off the stack, and pushes B mod A.
      5:U(O mod A);
      //'&': Pops the top value off the stack and puts it in the registry. Calling & again will take the value in the registry and put it back on the stack.
      6:if b=0then U(m)else m:=O;
      //'(': Less than. Pops A and B off the stack, and pushes 1 if B > A
      8:U(Ord(O>A));
      //')': Greater than. Pops A and B off the stack, and pushes 1 if B < A
      9:U(Ord(O<A));
      //'*': Pops A and B off the stack, and pushes B * A.
      10:U(O*O); // Note : A and B are inverted, but order is irrelevant here
      //'+': Pops A and B off the stack, and pushes B + A.
      11:U(O+O); // Note : A and B are inverted, but order is irrelevant here
      //',': Pops A and B off the stack, and pushes B / A. Division by 0 raises an error.
      12:U(O div A);
      //'-': Pops A and B off the stack, and pushes B - A.
      13:U(O-A);
      //'/': Mirror
      15:T(-y,-x);
      //'0'..'9': Push value 0-9 onto the stack.
      16..25:U(i-48);
      //':': Duplicates the top value on the stack.
      //'i': Takes one character as user input and pushes it's ASCII value to the stack
      //'{': Shifts the stack to the left / rotates entire stack counter-clockwise (e.g. 1,2,3,4 becomes 2,3,4,1)
      26,      // Note for ':' : First A was already pushed once above
      73,      // Note for 'i' : Read() into A was done in 1st case block
      91:U(A); // Note for '{' : l=1 was done in 1st case block, A:=O was done in 2nd block
      //'<': Turn west
      28:T(-1,0);
      //'=': Pops A and B off the stack, and pushes 1 if B = A, and 0 otherwise.
      29:U(Ord(O=O)); // Note : A and B are inverted, but order is irrelevant here
      //'>': Turn east
      30:T(1,0);
      //'?': Skips the following instruction if top of stack is zero, or stack is empty. (note: this does not pop anything off the stack!)
      31:if(l=0)or(k[l]=#0)then E;
      //'\': Mirror
      60:T(y,x);
      //'^': Turn north
      62:T(0,-1);
      //'_': Mirror y
      63:T(x,-y);
      //'a'..'f': Push value 10-15 onto the stack.
      65..70:U(i-87);
      //'g': Pops A and B off the stack, and pushes the value at B,A in the codebox.
      71:U(Ord(c[1+O+80*A])); // Note : A was Popped in 1st case block
      //'n': Pops and outputs the value
      78:Write(O);
      //'o': Pops and outputs as a character
      79:Write(Chr(O));
      //'p': Pops A, B, and C off the stack, and changes the value at C,B to A.
      80:c[1+O+80*l]:=Chr(A); // Note : A was Popped in 1st case block, l was set to 1 in 2nd case block
      //'r': Reverses the stack.
      82:for A:=1to(l)do s[A]:=k[l-A+1]; // Note: This reads from the stack-copy
      //'v': Turn south
      86:T(0,1);
      //'|': Mirror x
      92:T(-x,y) // Note : This case is last, because it ends on ')', which avoids a closing ';'
    else // ';' (27) and unrecognized instructions end execution.
      Exit;
    end;
  until 0=1;
end.

Edit riwayat:

(1306 + 18 = 1324): Memperbaiki bug dalam beberapa perintah operasi (Delphi mengevaluasi argumen secara terbalik). Juga memperbaiki tumpukan pop (tidak bisa meletup lebih dari sekali per instruksi).

(1324-33 = 1291): Perlindungan yang dihapus saat menulis konten dari tumpukan kosong

(1291-56 = 1235): Menambahkan fungsi Putar, variabel yang diubah namanya, penurunan digit instruksi

(1235-7 = 1228): Variabel yang disusun ulang, memperbaiki bug di '@'

(1228-37 = 1191): Dibagikan lebih banyak kode implementasi dengan menyebarkannya lebih dari 3 blok kasus berturut-turut

(1191-12 = 1179): Membagikan implementasi stack-cycling antara ketiga instruksi sekarang.

(1179-20 = 1159): Membagi string-parsing lebih dari 3 blok kasus, menghapus variabel j, berbagi implementasi lain

(1159-15 = 1144): Sederhana 'x' dengan mengubahnya menjadi salah satu dari 4 petunjuk arah

Haskell 1428

Hampir semua karakter huruf kecil digunakan sebagai nama fungsi.

PS Apakah ada game tentang esolang (2d pointer) semacam ini? Mereka pasti sangat lucu!

import qualified Data.Map as M
import System.Environment
import Data.Char
import System.Random
type I=Integer
data S=S{p::(I,I),d,e::Int,s::[I],r::S->S,m::M.Map(I,I)Char}
a=zip">v<^\\/_|x+-*,%()=:~!?$@&r{}gponi"[q 0,q 1,q 2,q 3,
 i[1,0,3,2],i[3,2,1,0],i[0,3,2,1],i[2,1,0,3],\s->do x<-randomRIO(0,3);t$s{d=x},
 h(+),h(-),h(*),h div,h mod,h$j(<),h$j(>),h$j(==),
 o(\(x:y)->x:x:y),o tail,t.g.g,\q->t$if s q==[]||head(s q)==0 then g q else q,
 o(\(x:y:z)->(y:x:z)),o(\(x:y:z:w)->(y:z:x:w)),\q->t$(r q)q,
 o reverse,o(\s->last s:init s),o(\s->tail s++[head s]),
 \q->let(i:j:x)=s q in t$q{s=l(b(i,j)q):x},
 \q->let(i:j:k:x)=s q in t$q{s=x,m=M.insert(i,j)(n k)(m q)},
 y$putChar.n,y$putStr.show,\q->do c<-getChar;t(q{s=l c:(s q)})
 ]++[(x,t.c i)|(x,i)<-zip['0'..'9'][0..9]++zip['a'..'f'][10..15]]
b p q=maybe ' 'id$M.lookup p(m q)
c x q=q{s=x:s q}
f(i,j)0=(i,j+1)
f(i,j)1=(i+1,j)
f(i,j)2=(i,j-1)
f(i,j)3=(i-1,j)
g q=q{p=f(p q)(d q)}
h f=o(\(b:a:k)->f b a:k)
i a s=t$s{d=a!!(d s)}
j f a b|f a b=1|1<2=0
k=zip[0,1..]
l=toInteger.ord
n=chr.fromInteger
o f q=t$q{s=f(s q)}
q x=i[x,x..]
t=return
u s=M.fromList.foldr1(++)$[map(\(j,x)->((i,j),x))l|(i,l)<-k$map k$lines s]
v q=let(x:y)=s q in q{r=w x,s=y}
w x q=q{s=x:(s q),r=v}
y o q=let(i:x)=s q in o i>>t(q{s=x})
z q=[[[y=<<(maybe t id$lookup x a)q,t()]!!j(==)x ';',y$c(l x)q]!!k,w]!!j elem x"'\""
 where k=e q;x=b(p q)q;w=y$q{e=1-k};y=z.g
main=z.S(0,0)0 0[]v.u=<<readFile.head=<<getArgs

Contoh Program Ikan

mm  v                           
   >              v
   ~>1f+00p       v                     
    ;v?)+afg00    <             #<-- Condition of loop 1
   p>>~ 410p      v             
   0vv?)+cfg01    <  <          #<-- Condition of loop 2
   00>~10g00gg'.'=?v~     v     #<-- Go this route when 
   +0    vp01+1g01~<            #    we find a digit.
   1g    >           ^   
   ^<                      
   v                      <   
                          >       >~      ;
0  >10g0cg"0"$-+00gg:" "=?^~:"."=?^v   
   ^     pc0+1gc0 n-$"0"          ~<

    .......................  
    .......................  
    ......112233...........   This program prints 
    .......................   the number on this field.
    .......................     <------------
    .......................  
    .......................      
    .......................       
    .......................       

Python, 978 980 981

import sys,random
f=open(sys.argv[1]).read().split('\n')
s=t=[]
d=p=x=y=k=0
r='n'
h='0123456789abcdef'
while h:
 c=f[y][x]
 if k:k=0
 elif p:
  if c==p:p=0
  else:s+=[ord(c)]
 else:
  for l in (h+'''0123456789abcdef`s+=[h.find(c)]
><^v`d='><^v'.find(c)
x`d=random.randint(0,3)
/`d=(d+2)%4
\`d=3-d
|#`if d<2:d=1-d
_#`if d>1:d=5-d
+-*,%=)($gp`a,b=s[-2:];s=s[:-2]
+-*%`s+=[eval('a%sb'%c)]
,`s+=[a/b]
=`s+=[a==b]
(`s+=[a<b]
)`s+=[a>b]
'"`p=c
!?`if(not s)or'!'==c or s[-1]==0:k=1
:`s+=s[-1:]
~`s.pop()
$`s+=[b,a]
@`s=s[:-3]+s[-1:]+s[-3:-1]
&`s,r=(s[:-1],s[-1])if r=='n'else (s+[r],'n')
.`s,t=t,s
r`s.reverse()
}`s=[:-1]+s[-1:]
{`s=s[1:]+s[:1]
m`s,t=[],s+t
g`s+=[f[b][a]]
p`f[s.pop()][b]=a
on`z=chr if c=='o'else str;sys.stdout.write(z(s.pop()));sys.stdout.flush()
i`s+=[int(sys.stdin.read(1))]
;`h=0''').split('\n'):
   l=l.split('`')
   if c in l[0]:
    try:exec(l[1])
    except:0
 if d<2:x=(x-d*2+1)%len(f[y])
 else:
  while 1:
   try:y=(y+d*2-5)%len(f);f[y][x];break
   except:0

Tidak mendukung threading.

Versi:
 1. 981
 2. 980: pInstruksi tetap ; perbaikan kecil.
 3. 978: ?Instruksi tetap .

Delphi, 1855 1701

Versi ini memiliki dukungan utas dengan biaya yang cukup tinggi: Versi tanpa dukungan utas adalah 1144 karakter saat ini, jadi dukungan utas menambah 557 karakter (sekitar 50%)!

type R=^_;_=record n:R;d:R;s:String;i,m,b,p,v,w,x,y,A,l:Int16;procedure U(v:Int16);function O:Int16;procedure T(a,b:Int16);procedure E;end;var f:TextFile;c,g,k:String;h:R;procedure _.U;begin if p>0then g:=g+Chr(v)else s:=s+Chr(v)end;function _.O;begin if l=0then Exit(0);if p>0then O:=Ord(g[l])else O:=Ord(s[l]);if p>0then Delete(g,l,1)else Delete(s,l,1);Dec(l)end;procedure _.T;begin if(d<>nil)then begin d.n:=n;n:=d;d.v:=v;d.w:=w;d:=nil;n.T(a,b);Exit;end;x:=a;y:=b;end;procedure _.E;begin v:=(v+x+80)mod 80;w:=(w+y+25)mod 25;i:=Ord(c[1+v+80*w])end;var j:byte;begin h:=AllocMem(32);h.n:=h;h.x:=1;h.v:=-1;Assign(f,ParamStr(1));Reset(f);for j:=1to 25do begin ReadLn(f,k);c:=c+k+StringOfChar(' ',80-Length(k))end;repeat h:=h.n;h.E;with h^ do begin k:=s;if p>0then k:=g;l:=Length(k);A:=i;case i-32of 2,7:repeat E;U(i);Inc(l)until i=A;4,5,8,9,12,13,26,32,71,80,93:A:=O;6:b:=1-b;88:i:=Ord('<>^v'[1+Random(4)]);91:l:=1;73:Read(PChar(@A)^)end;case i-32of 4:l:=l+1;80:l:=O;91:A:=O;93:l:=2;26:U(A)end;case i-32of 0,88:;1:E;2,7,94:O;3:T(-x,-y);4,32,93:if p>0then Insert(Chr(A),g,l-1)else Insert(Chr(A),s,l-1);5:U(O mod A);6:if b=0then U(m)else m:=O;8:U(Ord(O>A));9:U(Ord(O<A));10:U(O*O);11:U(O+O);12:U(O div A);13:U(O-A);14:p:=1-p;15:T(-y,-x);16..25:U(i-48);26,73,91:U(A);28,30:T(i-61,0);29:U(Ord(O=O));31:if(l=0)or(k[l]=#0)then E;59:d:=AllocMem(32);60:T(y,x);61:begin if(h=n)then Exit;d:=n;while(d.n<>h)do d:=d.n;d.n:=h.n;d:=h;h:=n;d:=nil;end;62:T(0,-1);63:T(x,-y);65..70:U(i-87);71:U(Ord(c[1+O+80*A]));77:begin if p>0then s:=s+g else g:=g+s;if p>0then g:=''else s:=''end;78:Write(O);79:Write(Chr(O));80:c[1+O+80*l]:=Chr(A);82:for j:=1to(l)do s[j]:=k[l-j+1];86:T(0,1);92:T(-x,y)else Exit;end;end;until 0=1;end.

Perhatikan bahwa implementasi ini berisi beberapa ide yang akan mengurangi kiriman saya yang lain oleh beberapa lusin karakter (saya akan menerapkannya nanti).

Kode ini menjalankan sampel 'multithreaded hello, world' dengan sempurna, dan sebagian besar sampel lainnya. (Penerjemah saya memberi saya pembagian dengan pengecualian nol saat menjalankan sampel 'e' - adakah yang bisa mengonfirmasi hal ini dengan penerjemah lain> <>?)

Di sini kode indentasi dan komentar:

{debug}uses Windows;{}
// Note : Lowercase identifiers are variables, Uppercase identifiers are types and functions.
type R=^_;_=record
  // n is the next thread (self if round robin)
  n:R;
  // d is an extra thread (will start running at next turn)
  d:R;
  // s is the thread-local stack (kept as a string)
  s:String;
  // i is the current instruction read from the program
  i,
  // m is the registry memory value (read/written by the '&' instruction)
  m,
  // b indicates if the registry should be written (b=0) or read (b>0) by the '&' instruction
  b,
  // p is the stack selector (p=0 : Use thread local stack, p>0 : Use global stack)
  p,
  // v,w are x,y positions into the program
  v,w,
  // x,y are steps in the respective direction (values -1,0 or 1) :
  x,y,
  // A is a temporary variable (only uppercase var, to coincide with comments)
  A,
  // l is the length of the stack (may be abused as a temporary)
  l
  :Int16;
  procedure U(v:Int16);
  function O:Int16;
  procedure T(a,b:Int16);
  procedure E;
end;

var
  // f is the source file
  f:TextFile;
  // c is the entire codebox (a 2-dimensional program)
  c,
  // g is the global stack
  g,
  // k is a temporary stack copy, needed for reversal
  k:String;
  // h is the current thread
  h:R;

procedure _.U; // PUSH
begin
  // Push value onto the stack:
  if p>0then g:=g+Chr(v)else s:=s+Chr(v)
end;

function _.O; // POP
begin
  // Pop value from the stack :
  if l=0then Exit(0);
  if p>0then O:=Ord(g[l])else O:=Ord(s[l]);
  if p>0then Delete(g,l,1)else Delete(s,l,1);
  Dec(l)
end;

procedure _.T; // TURN
begin
  // Split off a new thread when requested :
  if(d<>nil)then
  begin
    // Insert the new thread in the chain :
    d.n:=n;
    n:=d;
    // Split off the thread :
    d.v:=v;
    d.w:=w;
    d:=nil;
    n.T(a,b);
    Exit;
  end;

  // Turn in a new direction :
  x:=a;
  y:=b;
end;

procedure _.E; // STEP
begin
//{debug}Sleep(10);{}
  // Note : x-step needs to stay on same line, y-step needs to stay on same column
  v:=(v+x+80)mod 80;
  w:=(w+y+25)mod 25;
  i:=Ord(c[1+v+80*w])
end;

var
  j:byte;
begin
  {debug}Assert(SizeOf(_)=32);
  // Initialize first thread :
  h:=AllocMem(32);
  h.n:=h;
  h.x:=1;
  h.v:=-1;
  // Open file given at the command-line, and read & expand it's lines into our program buffer :
  Assign(f,ParamStr(1));
  Reset(f);
  for j:=1to 25do
  begin
    ReadLn(f,k);
    c:=c+k+StringOfChar(' ',80-Length(k))
    {debug};SetLength(c,j*80)
  end;
  // Cycle over all threads, executing one instruction per thread :
  repeat
    h:=h.n;
    // Take a step (which gives a new 'i'nstruction)
    h.E;
    with h^ do
    begin
      // Make a copy of the active stack, and determine it's length :
      k:=s;
      if p>0then
        k:=g;
      l:=Length(k);
      // Shorten '''' and '"' (case 2 and 7) string-collecting, by remembering the quote character in A :
      A:=i;
      // Prevent begin+end pair for instructions that need only 2 statements, by handling the 1st here :
      case i-32of // Note : The instruction is decreased by 32, resulting in less digits
        // Shorten string-collecting, by pushing the entire string here (the opening quote was remembered in A) :
        2,7:repeat E;U(i);Inc(l)until i=A; // Note :  We stop at the closing character, so the next block will still handle 'i'!
        // These instructions all need to Pop A, so write it just once here :
        4,5,8,9,12,13,26,32,71,80,93:A:=O;
        // Prevent begin+end for register access, by switching the read/write flag here :
        6:b:=1-b;
        // 'x' (case 120>88): Turn random direction; Choose a random direction instruction and let the 3rd case-block handle it :
        88:i:=Ord('<>^v'[1+Random(4)]);
        // Shorten '{' (case 123-32=91): Share 3rd case-block with ':' (>26) and 'i' (>73) by setting l to 1 here :
        91:l:=1;
        // Prevent begin+end for input retrieval, by reading the input into A here :
        73:Read(PChar(@A)^) // Note : This case is last, because it ends on ')', which avoids a closing ';'
      end;

      // Shorten a few more cases by preparing variables so they can be shared with eachother and the 3rd case-block below :
      case i-32of // Note : The instruction is decreased by 32, resulting in less digits in the cases below!
        // Shorten '$' (case 38-32=4): Set 'l' to l+1 so that the 3rd case-block can insert just like '@' and '}' :
        4:l:=l+1;
        // Shorten 'p' (case 112-32=80): Set 'l' to O() so that the 3rd case-block doesn't need a begin+end pair :
        80:l:=O;
        // Shorten '{' (case 123-32=91): Share 3rd case-block with ':' (>26) and 'i' (>73) by popping A from position 1, as tricked above!:
        91:A:=O; // Note : This is NOT the same as doing this in the 1st case-block, as 'l' needs to be 1 first!
        // Shorten '}' (case 125-32=93): Prepare 'l' so that the implementation can be shared with '@' (>32):
        93:l:=2;
        // Shorten ':' (case 58-32=26): Share implementation with 'i' (>73) by pushing first copy of A (read above) here
        26:U(A) // Note : This case is last, because it ends on ')', which avoids a closing ';'
      end;

      // All statements (1 statement, or 2nd statement, or begin+end pair with 2 or more statements) :
      case i-32of // Note : The instruction is decreased by 32, resulting in less digits in the cases below!
        //' ': Ignore spaces
        0,88:;
        //'!': Skips the following instruction.
        1:E;
        //'"','''': Enables string parsing. String parsing pushes every character found to the stack until it finds a closing quote.
        //'~': Removes the top value from the stack.
        2,7,94:O;
        //'#': Mirror both axes
        3:T(-x,-y);
        //'$': Rotates the top 2 values on the stack clockwise, respectively. (eg. if your stack is 1,2,3,4, would result in 1,2,4,3)
        //'@': Rotates the top 3 values on the stack clockwise, respectively. (eg. if your stack is 1,2,3,4, would result in 1,4,2,3)
        //'}': Shifts the stack to the right / rotates entire stack clockwise (e.g. 1,2,3,4 becomes 4,1,2,3)
        4,
        32,
        93:if p>0then Insert(Chr(A),g,l-1)else Insert(Chr(A),s,l-1); // Note : A was Popped in 1st case block
        //'%': Pops A and B off the stack, and pushes B mod A.
        5:U(O mod A);
        //'&': Pops the top value off the stack and puts it in the registry. Calling & again will take the value in the registry and put it back on the stack.
        6:if b=0then U(m)else m:=O;
        //'(': Less than. Pops A and B off the stack, and pushes 1 if B > A
        8:U(Ord(O>A));
        //')': Greater than. Pops A and B off the stack, and pushes 1 if B < A
        9:U(Ord(O<A));
        //'*': Pops A and B off the stack, and pushes B * A.
        10:U(O*O); // Note : A and B are inverted, but order is irrelevant here
        //'+': Pops A and B off the stack, and pushes B + A.
        11:U(O+O); // Note : A and B are inverted, but order is irrelevant here
        //',': Pops A and B off the stack, and pushes B / A. Division by 0 raises an error.
        12:U(O div A);
        //'-': Pops A and B off the stack, and pushes B - A.
        13:U(O-A);
        //'.': Switch between thread-local and global stack
        14:p:=1-p;
        //'/': Mirror
        15:T(-y,-x);
        //'0'..'9': Push value 0-9 onto the stack.
        16..25:U(i-48);
        //':': Duplicates the top value on the stack.
        //'i': Takes one character as user input and pushes it's ASCII value to the stack
        //'{': Shifts the stack to the left / rotates entire stack counter-clockwise (e.g. 1,2,3,4 becomes 2,3,4,1)
        26,      // Note for ':' : First A was already pushed once above
        73,      // Note for 'i' : Read() into A was done in 1st case block
        91:U(A); // Note for '{' : l=1 was done in 1st case block, A:=O was done in 2nd block
        //'<': Turn west
        //'>': Turn east
        28,30:T(i-61,0);
        //'=': Pops A and B off the stack, and pushes 1 if B = A, and 0 otherwise.
        29:U(Ord(O=O)); // Note : A and B are inverted, but order is irrelevant here
        //'?': Skips the following instruction if top of stack is zero, or stack is empty. (note: this does not pop anything off the stack!)
        31:if(l=0)or(k[l]=#0)then E;
        //'[': Creates a new thread at the next direction-changing instruction.
        59:d:=AllocMem(32); // Note : Double execution gives memleaks, could be fixed with prefix 'if(d=nil)then '
        //'\': Mirror
        60:T(y,x);
        //']': Ends the current thread.
        61:begin if(h=n)then Exit;d:=n;while(d.n<>h)do d:=d.n;d.n:=h.n;d:=h;h:=n;d:=nil;end; // Note : Memleak on d could be fixed with FreeMem(d)
        //'^': Turn north
        62:T(0,-1);
        //'_': Mirror y
        63:T(x,-y);
        //'a'..'f': Push value 10-15 onto the stack.
        65..70:U(i-87);
        //'g': Pops A and B off the stack, and pushes the value at B,A in the codebox.
        71:U(Ord(c[1+O+80*A])); // Note : A was Popped in 1st case block
        //'m': Takes all data from the current stack and moves it to the end of the other stack.
        77:begin if p>0then s:=s+g else g:=g+s;if p>0then g:=''else s:=''end;
        //'n': Pops and outputs the value
        78:Write(O);
        //'o': Pops and outputs as a character
        79:Write(Chr(O));
        //'p': Pops A, B, and C off the stack, and changes the value at C,B to A.
        80:c[1+O+80*l]:=Chr(A); // Note : A was Popped in 1st case block, l was set to 1 in 2nd case block
        //'r': Reverses the stack.
        82:for j:=1to(l)do s[j]:=k[l-j+1]; // Note: This reads from the stack-copy
        //'v': Turn south
        86:T(0,1);
        //'|': Mirror x
        92:T(-x,y) // Note : This case is last, because it ends on ')', which avoids a closing ';'
      else // ';' (27) and unrecognized instructions end execution.
        Exit;
      end;
    end;
  until 0=1;
end.

Edit riwayat:

(1855-154 = 1701): Menerapkan semua gagasan dari versi yang tidak berulir

PHP, 2493 byte

<?php if($argc<=1||$argv[1]=='-h'){echo 'e.g.: fish.php program.fish';}else{$f=$argv[1];if(file_exists($f)){$x=file_get_contents($f);$x=str_replace(a("\r\n","\r"),"\n",$x);f($x);}}function f($f){$g=explode("\n",$f);foreach($g as &$u){$a=a();$i=0;while($i++<=strlen($u)){$a[]=substr($u,$i,1);}$u=$a;}$p=a(0,0);$d=a(1,0);$s=a();$q=false;$r=null;while(1){$c=g($g,$p);if($c!==null){if($q&&$c!='"'&&$c!='\''){$s[]=ord($c);}else if(h($c)){$s[]=hexdec($c);}else {if($c=='x'){$a=a('<','>','^','v');$c=$a[mt_rand(0,3)];}switch($c){case '>':$d=a(1,0);break;case '<':$d=a(-1,0);break;case '^':$d=a(0,-1);break;case 'v':$d=a(0,1);break;case '/':$d=a(-$d[1],-$d[0]);break;case '\\':$d=a($d[1],$d[0]);break;case '|':$d[0]=-$d[0];break;case '_':$d[1]=-$d[1];break;case '#':$d=a(-$d[0],-$d[1]);break;case 'o':case 'n':case '~':$a=p($s);if($c=='o'){echo chr($a);}else if($c=='n'){echo (int)$a;}break;case ')':case '(':case '=':$a=p($s);$b=p($s);$s[]=($b<$a&&$c=='(')||($b>$a&&$c==')')||($a==$b&$c=='=')?1:0;break;case ',':case '*':case '%':case '-':case '+':$a=p($s);$b=p($s);switch($c){case '+':$s[]=$b+$a;break;case '-':$s[]=$b-$a;break;case '*':$s[]=$b*$a;break;case ',':$s[]=$b/$a;break;case '%':$s[]=$a%$b;break;}break;case ':':$a=p($s);array_push($s,$a,$a);break;case '!':case '?':if((c($s)==0)||$c=='!'){m($g,$d,$p);}break;case 'g':$a=p($s);$b=p($s);$o=ord(gc($g,a($b,$a)));$s[]=$o;break;case 'p':$j=p($s);$k=p($s);$h=p($s);$g[$k][$h]=chr($j);break;case '$':$a=p($s);$b=p($s);array_push($s,$a,$b);break;case '@':$a=p($s);$b=p($s);$j=p($s);array_push($s,$a,$j,$b);break;case 'r':$s=array_reverse($s);break;case '}':$a=p($s);array_unshift($s,$a);break;case '{':$a=array_shift($s);$s[]=$a;break;case '&':if($r==null){$r=p($s);}else {array_push($s,$r);$r=null;}break;case '\'':case '"':$q=!$q;break;case ';':return;break;case ' ':case "\n":break;default:echo 'E: Unknown syntax "'.$c.'" at ('.$p[0].', '.$p[1].')';return;break;}}}m($g,$d,$p);}}function p(&$s){return array_pop($s);}function h($c){$d=-1;if(is_numeric($c)){$d=(int)$c;}return ($d>=0&&$d<=9)||($c>='a'&&$c<='f');}function m($g,&$d,&$p){$p[1]+=$d[1];$p[0]+=$d[0];if($d[1]!=0){if($p[1]<0){$p[1]=c($g)-1;}if($p[1]>=c($g)){$p[1]=0;}}else{if($p[0]>=c($g[$p[1]])){$p[0]=0;}if($p[0]<0){$p[0]=c($g[$p[1]])-1;}}}function g($g,$p){if(kc($p[1],$g)){if(is_array($g[$p[1]])&&kc($p[0],$g[$p[1]])){return $g[$p[1]][$p[0]];}}return null;}function kc($k,$a){return array_key_exists($k,$a);}function a(){return func_get_args();}function c($a){return count($a);}

Saya tahu bahwa itu telah diimplementasikan dengan ukuran kompiler yang lebih kecil dengan bahasa lain, namun demikian dengan semangat seorang programmer yang tidak pernah berkata-kata, saya telah datang dengan juru bahasa PHP CLI untuk ><> Fish . Seluruh kode sumber di bawah ini.

2 fitur utama dari bahasa pemrograman Fish tidak diterapkan, yaitu:

1. Multi-threading. Script PHP hanya eksekusi top-down berulir tunggal.
2. Input ikarakter. PHP CLI mengharuskan pengguna untuk menekan <Enter>tombol untuk memasukkan input ke buffer input.

Perhatikan bahwa saya telah menulis dan mengoptimalkan banyak fungsi asli termasuk pembuatan array dengan menggunakan:

function a(){
    return func_get_args();
}
$a = a(1,3,4,5);

dari pada

$a = array(1,3,4,5);

Program ini dapat diakses melalui antarmuka baris perintah (CLI) menggunakan perintah berikut:

php fish.php program.fish

Saya menghabiskan total 6 jam untuk menyelesaikan ini dengan referensi ke penerjemah python asli.

Sumber Asli:

<?php

if($argc <= 1  || $argv[1] == '-h'){
    echo 'e.g.: fish.php program.fish';
}else{
    $f = $argv[1];
    if(file_exists($f)){
        $x = file_get_contents($f);
        $x = str_replace(a("\r\n", "\r"), "\n", $x);
        f($x);
    }
}

function f($f) {
    $g = explode("\n", $f);
    foreach($g as &$u){
        $a = a();
        $i = 0;
        while($i++ <= strlen($u)){
            $a[] = substr($u, $i, 1);
        }
        $u = $a;
    }
    $p = a(0, 0); // position
    $d = a(1, 0); // direction
    $s = a(); // stack
    $q = false; // string lateral
    $r = null; // registry
    while (1) {
        $c = g($g, $p);
        if ($c !== null) {
            if ($q && $c != '"' && $c != '\'') {
                $s[] = ord($c);
            } else if (h($c)) {
                $s[] = hexdec($c);
            } else {
                if($c == 'x'){
                    $a = a('<', '>', '^', 'v');
                    $c = $a[mt_rand(0, 3)];
                }
                switch ($c) {
                    case '>':
                        $d = a(1, 0);
                        break;
                    case '<':
                        $d = a(-1, 0);
                        break;
                    case '^':
                        $d = a(0, -1);
                        break;
                    case 'v':
                        $d = a(0, 1);
                        break;
                    case '/':
                        $d = a(-$d[1], -$d[0]);
                        break;
                    case '\\':
                        $d = a($d[1], $d[0]);
                        break;
                    case '|':
                        $d[0] = -$d[0];
                        break;
                    case '_':
                        $d[1] = -$d[1];
                        break;
                    case '#':
                        $d = a(-$d[0], -$d[1]);
                        break;
                    case 'o':
                    case 'n':
                    case '~':
                        $a = p($s);
                        if ($c == 'o') {
                            echo chr($a);
                        } else if ($c == 'n') {
                            echo (int)$a;
                        }
                        break;
                    case ')':
                    case '(':
                    case '=':
                        $a = p($s);
                        $b = p($s);
                        $s[] = ($b < $a && $c == '(') || ($b > $a && $c == ')') || ($a == $b & $c == '=') ? 1 : 0;
                        break;
                    case ',':
                    case '*':
                    case '%':
                    case '-':
                    case '+':
                        $a = p($s);
                        $b = p($s);
                        switch ($c) {
                            case '+':
                                $s[] = $b + $a;
                                break;
                            case '-':
                                $s[] = $b - $a;
                                break;
                            case '*':
                                $s[] = $b * $a;
                                break;
                            case ',':
                                $s[] = $b / $a;
                                break;
                            case '%':
                                $s[] = $a % $b;
                                break;
                        }
                        break;
                    case ':':
                        $a = p($s);
                        array_push($s, $a, $a);
                        break;
                    case '!':
                    case '?':
                        if ((c($s) == 0) || $c == '!') {
                            m($g, $d, $p);
                        }
                        break;
                    case 'g':
                        $a = p($s);
                        $b = p($s);
                        $o = ord(gc($g, a($b, $a)));
                        $s[] = $o;
                        break;
                    case 'p':
                        $j = p($s);
                        $k = p($s);
                        $h = p($s);
                        $g[$k][$h] = chr($j);
                        break;
                    case '$':
                        $a = p($s);
                        $b = p($s);
                        array_push($s, $a, $b);
                        break;
                    case '@':
                        $a = p($s);
                        $b = p($s);
                        $j = p($s);
                        array_push($s, $a, $j, $b);
                        break;
                    case 'r':
                        $s = array_reverse($s);
                        break;
                    case '}':
                        $a = p($s);
                        array_unshift($s, $a);
                        break;
                    case '{':
                        $a = array_shift($s);
                        $s[] = $a;
                        break;
                    case '&':
                        if ($r == null) {
                            $r = p($s);
                        } else {
                            array_push($s, $r);
                            $r = null;
                        }
                        break;
                    case '\'':
                    case '"':
                        $q = !$q;
                        break;
                    case ';':
                        return;
                        break;
                    case ' ':
                    case "\n":
                        break;
                    default:
                        echo 'E: Unknown syntax "' . $c . '" at (' . $p[0] . ', ' . $p[1] . ')';
                        return;
                        break;
                }
            }
        }
        m($g, $d, $p);
    }
}

function p(&$s) {
    return array_pop($s);
}

function h($c) {
    $d = -1;
    if (is_numeric($c)) {
        $d = (int) $c;
    }
    return ($d >= 0 && $d <= 9) || ($c >= 'a' && $c <= 'f');
}

function m($g, &$d, &$p) {
    $p[1] += $d[1];
    $p[0] += $d[0];
    if($d[1] != 0){
        if($p[1] < 0){
            $p[1] = c($g) - 1;
        }
        if($p[1] >= c($g)){
            $p[1] = 0;
        }
    }else{
        if($p[0] >= c($g[$p[1]])){
            $p[0] = 0;
        }
        if($p[0] < 0){
            $p[0] = c($g[$p[1]]) - 1;
        }
    }
}

function g($g, $p){
    if(kc($p[1], $g)){
        if(is_array($g[$p[1]]) && kc($p[0], $g[$p[1]])){
            return $g[$p[1]][$p[0]];
        }
    }
    return null;
}

function kc($k, $a){
    return array_key_exists($k, $a);
}

function a(){
    return func_get_args();
}

function c($a){
    return count($a);
}

Edit Sejarah

1. Mengubah xsintaksis untuk memilih salah satu arah alih-alih memilih sendiri.
2. Memperbaiki pperintah di mana chr()harus digunakan sebelum memasukkan nilai ke dalam kotak kode.

Lua 1640 (1558 non threading) karakter

Versi pengaliran, golf (1640 karakter):

L=loadstring L(([[z=table p=z.insert P=z.remove W=io.write t="><^v/\\|_#x+-*,%=)(!?:~$@&r}{gponi;[].m"C=t.char B=t.byte F=t.match M=setmetatable Q=getfenv R=setfenv I=io.read w="@h1,0@h-1,0@h0,-1@h0,1@h-Y,-X@hY,X|X=-X|Y=-Y@h-X,-Y|z=math.random(1,4)R(f[('><^v'):sub(z,z)],Q())()|@c@a+@a)|@c-@a+@a)|@c@a*@a)|z=@a@pz~=0 @b@c@a/z)@rerror'Div by 0'@d|y=@az=@a@cz%y)|@c@a==@a@n1@g0)|@c@a>@a@n1@g0)|@c@a<@a@n1@g0)|@i|@p#s==0@gs[#s]==0 @b@i@d|@cs[#s])|@a|z=#s s[z@k-1]=s[z-1@k]|z=#s s[z@k-1@k-2]=s[z-1@k-2@k]|@pr @b@cr)r=N @rr=@a@d|z={}@o=1,#s@qz[#s-k+1]=s[k]@ds=z|@c1,@a)|@cP(s,1))|z=@a@cc[@a][z])|z,w=@a,@ac[@a][w]=z|W(C(@a))|W(@a)|z=I(1)while F(z,'%s')@qz=I(1)@d@cB(z))|os.exit()|T.N=1|P(T,I)@o=I,#T@qT[k].I=k@d|s=s==S@nl@gS|z=s==S@nl@gS @o=#s,1,-1@qp(z,P(s,1))@d|"z=1 f={}@o in t:gmatch"."@q_,z,s=w:find("|(.-)|",z)f[k]=L(s)@dT={m@j)@i @py>#c @by=0 @fy<0 @by=#c@d@px>#c[y]@nX==1 @bx=0 @fx<0 @bx=#c[y]@d@d,n@jx,y,X,Y)z=M({I=#T+1,l={},X=X@g1,Y=Y@g0,x=x@g0,y=y@g0},{__index=_G})z.s=z.l T[z.I]=z@d}c={}S={}T.n(-1)fh=arg[1]@nio.open(arg[1])@gio.stdin y=0 for l in fh:lines()@qc[y]=M({},{__index@j)return 32@d})@o=1,#l@qz=l:sub(k,k) @pnot i @b@pF(z@l@bi=z@d@pF(z,"[^\n\r]")@b@m@d@r@pz==i @bi=N@d@m@d@dy=y+1@dwhile #T>0@qfor I=1,#T@qt=T[I]R(1,t)R(T.m,t)()n,o=X,Y q=C(c[y][x])@pi @b@pF(q@l@bi=N @r@cc[y][x])@d@fF(q@l @bi=q @fF(q,"%x")@b@ctonumber(q,16))@fF(q,"[^ ]")@bsetfenv(f[q],t)()@d@[email protected]@n(n~=X@go~=Y)@bT.n(x,y,X,Y)T.N=N X,Y=n,o@d@d]]):gsub("@(.)",{a="P(s)",b="then ",c="p(s,",d=" end ",f="elseif ",g=" or ",h="|X,Y=",i="x,y=x+X,y+Y",j="=function(",k="],s[z",l=[[,"['\"]")]],m="c[y][k-1]=B(z)",n=" and ",o="for k",p="if ",q=" do ",r="else "}))()

Versi threading melakukan beberapa hack jahat dengan setfenv dan getfenv untuk menghilangkan kebutuhan pengindeksan untuk utas yang berbeda.

Versi terjemahan dapat dibaca:

-- http://codegolf.stackexchange.com/questions/1595/interpret-fish
z=table
p=z.insert  -- push
P=z.remove  -- pop
W=io.write
t="><^v/\\|_#x+-*,%=)(!?:~$@&r}{gponi;[].m"     -- all tokens
C=t.char
B=t.byte
F=t.match
M=setmetatable
Q=getfenv
R=setfenv
I=io.read
--w=("@d1,0@d-1,0@d0,-1@d0,1@d-Y,-X@dY,X|X=-X|Y=-Y@d-X,-Y|z=math.random(1,4)R(f[('><^v'):sub(z,z)],Q())()|@b@a+@a)|@b-@a+@a)|@b@a*@a)|z=@aif z~=0@i@b@a/z)else error'Div by 0'end|y=@az=@a@bz%y)|@b@a==@a @c@b@a>@a@c@b@a<@a@c@h|if #s==0 or s[#s]==0@i@h end|@bs[#s])|@a@gs[z-1]=@e]@g@e-2]=@e-2],s[z]|if r@i@br)r=N else r=@aend|z={}for k=1,#s do z[#s-k+1]=s[k]end s=z|@b1,@a)|@bP(s,1))|z=@a@bc[@a][z])|z,w=@a,@ac[@a][w]=z|W(C(@a))|W(@a)|z=I(1)while F(z,'%s')do z=I(1)end @bB(z))|os.exit()|T.N=1|P(T,I)for k=I,#T do T[k].I=k end|s@f|z@f for k=#s,1,-1 do p(z,P(s,1))end|"):gsub("@(.)",{a="P(s)",b="p(s,",c="and 1 or 0)|",d="|X,Y=",e="s[z-1],s[z",f="=s==S and l or S",g="|z=#s s[z],",h="x,y=x+X,y+Y",i=" then "})
w="|X,Y=1,0|X,Y=-1,0|X,Y=0,-1|X,Y=0,1|X,Y=-Y,-X|X,Y=Y,X|X=-X|Y=-Y|X,Y=-X,-Y|z=math.random(1,4)R(f[('><^v'):sub(z,z)],Q())()|p(s,P(s)+P(s))|p(s,-P(s)+P(s))|p(s,P(s)*P(s))|z=P(s)if z~=0 then p(s,P(s)/z)else error'Div by 0'end|y=P(s)z=P(s)p(s,z%y)|p(s,P(s)==P(s) and 1 or 0)|p(s,P(s)>P(s)and 1 or 0)|p(s,P(s)<P(s)and 1 or 0)|x,y=x+X,y+Y|if #s==0 or s[#s]==0 then x,y=x+X,y+Y end|p(s,s[#s])|P(s)|z=#s s[z],s[z-1]=s[z-1],s[z]|z=#s s[z],s[z-1],s[z-2]=s[z-1],s[z-2],s[z]|if r then p(s,r)r=N else r=P(s)end|z={}for k=1,#s do z[#s-k+1]=s[k]end s=z|p(s,1,P(s))|p(s,P(s,1))|z=P(s)p(s,c[P(s)][z])|z,w=P(s),P(s)c[P(s)][w]=z|W(C(P(s)))|W(P(s))|z=I(1)while F(z,'%s')do z=I(1)end p(s,B(z))|os.exit()|T.N=1|P(T,I)for k=I,#T do T[k].I=k end|s=s==S and l or S|z=s==S and l or S for k=#s,1,-1 do p(z,P(s,1))end|"
z=1
f={}
for k in t:gmatch"." do -- will contain the tokens
    _,z,s=w:find("|(.-)|",z)
    f[k]=loadstring(s)
end
T={     -- table of threads
    --N = new thread to be created.
    m=function()
        x,y=x+X,y+Y
        if y > #c then
            y=0
        elseif y<0 then
            y=#c
        end
        if x>#c[y] and X==1 then
            x=0
        elseif x<0 then
            x=#c[y]
        end
    end,
    n=function(x,y,X,Y)
        z=M({
        I=#T+1,                 -- keep number id
        l={},                   -- local stack
        X=X or 1,                   -- 1 for +x, -1 for -x, 0 for y/-y
        Y=Y or 0,                   -- 1 for +y, -1 for -y, 0 for x/-x 
        x=x or 0,                   -- X of IP
        y=y or 0,                   -- Y of IP
        -- i,                   -- will contain type of quote when reading in a string --TODO keep local
        -- r,                   -- registry --TODO make global
        },{__index=_G})         -- Enable lookup of functions in global table.
        z.s=z.l -- current stack is local stack
        T[z.I]=z    -- add at next index
    end
    }
c={}    -- codebox IP wraps around -- TODO make codebox global in code
S={}    -- global stack
-- codebox layout
--     -----> +x
--  @  |line of text            -- wrap around to second line
--     |second line of text.    -- negative indices can be used for variables
--     |
--     V +Y

-- y first coord, x second
-- wrap around rows if nil row
-- wrap around cols if nil char.
T.n(-1)

-- compile to codebox
fh= arg[1] and io.open(arg[1]) or io.stdin  -- use file or stdin

y=0
for l in fh:lines() do
    c[y]=M({},{__index=function()return 32 end})--default to space
    for k=1,#l do
        z=l:sub(k,k)
        if not i then       -- normal mode
            if F(z,"['\"]") then i=z end
            if F(z,"[^\n\r]")then --filter out only newlines
                c[y][k-1]=B(z)
            end -- any spacing allowed.
        else                
            if z==i then i=N end-- verbatim string mode
            c[y][k-1]=B(z)
        end
    end
    y=y+1
end

io.stdout:setvbuf("no") -- direct output
while #T>0 do
    for I=1,#T do
        t=T[I]
        R(1,t)
        R(T.m,t)()
        n,o=X,Y -- keep old directions for new thread detection
        q=C(c[y][x])
        if i then                       -- stringparsing mode       
            if F(q,"['\"]") then        -- end-quote
                i=N
            else
                p(s,c[y][x])    -- push contents of box, then advance
            end
        elseif F(q,"['\"]") then        -- start-quote
            i=q
        elseif F(q,"%x") then       -- parsing a number
            p(s,tonumber(q,16))
        elseif F(q,"[^ ]") then
            assert(setfenv(f[q],t))
            f[q]()  -- call, feed with state/thread
        end
    end
    if T.N and (n~=X or o~=Y) then
        -- create new thread
        T.n(x,y,X,Y)
        T.N=N
        X,Y=n,o     -- restore directions of parent
    end
end 

Versi nonthreading, golf (1558 karakter, tetapi dapat menyusut sedikit lebih banyak jika versi non-threading akan menjadi kriteria):

T=table p=T.insert P=T.remove I=io.read W=io.write A=assert t="><^v/\\|_#x+-*,%=)(!?:~$@&r}{gponi;"M=t.match B=t.byte C=t.char f={"X,Y=1,0","X,Y=-1,0","X,Y=0,-1","X,Y=0,1","X,Y=-Y,-X","X,Y=Y,X","X=-X","Y=-Y","X,Y=-X,-Y","z=math.random(1,4)f[('><^v'):sub(z,z)]()","p(s,P(s)+P(s))","p(s,-P(s)+P(s))","p(s,P(s)*P(s))","p(s,(1/P(s) or error'Div by 0')*P(s))","y=P(s)z=P(s)p(s,z%y)","p(s,P(s)==P(s) and 1 or 0)","p(s,P(s)>P(s) and 1 or 0)","p(s,P(s)<P(s) and 1 or 0)","x,y=x+X,y+Y","if #s==0 or s[#s]==0 then f['!']()end","p(s,s[#s])","P(s)","z=#s s[z],s[z-1]=s[z-1],s[z]","z=#s s[z],s[z-1],s[z-2]=s[z-1],s[z-2],s[z]","if r then p(s,r)r=N else r=P(s)end","z={}for k=1,#s do z[#s-k+1]=s[k]end s=z","p(s,1,P(s))","p(s,P(s,1))","z=P(s) p(c[P(s)][z])","z,w=P(s),P(s) c[P(s)][w]=z","W(C(P(s)))","W(P(s))","z=I(1) while M(z,'%s')do z=I(1)end p(s,B(z))","os.exit()"}z=1 for k in t:gmatch"."do f[k]=A(loadstring(f[z]))z=z+1 end c={}s={}X=1 Y=0 x=0 y=0 m=function(s)x,y=x+X,y+Y if y>#c then y=0 elseif y<0 then y=#c end if x>#c[y]and X==1 then x=0 elseif x<0 then x=#c[y]end end F=arg[1]and io.open(arg[1])or io.stdin l=0 for line in F:lines()do c[l]=setmetatable({},{__index=function()return 0 end})for k=1,#line do z=line:sub(k,k)if not i then if M(z,"['\"]")then i=z end if M(z,"[^\n\r]")then c[l][k-1]=B(z)end else if z==i then i=N end c[l][k-1]=B(z)end end l=l+1 end while 1 do q=C(c[y][x])if i then if M(q,"['\"]")then i=N else p(s,c[y][x])end else if M(q,"['\"]")then i=q elseif M(q,"%x")then p(s,tonumber(q,16)) elseif M(q,"[^ %z]")then A(f[q])f[q]()end end m()end

Versi yang dapat dibaca:

-- http://codegolf.stackexchange.com/questions/1595/interpret-fish
--
-- TODO's
-- threading instructions:
-- * [ start thread at next change in direction.
-- * ] end thread
-- * . switch between global and local stack
-- * m copy global to local stack
--
p=table.insert  -- push
P=table.remove  -- pop
t=table.concat{ 
    "><^v",     -- Direction    DONE
    "/\\|_#",   -- Mirror       DONE
    "x",        -- random direction DONE
    "+-*,%",    -- arithm.  DONE
    "=)(",      -- pops A and B of the stack if A==B then push 1 else push 0,same for greater than, lesser than. (result on stack) -- DONE
    "!",        -- skip next    DONE
    "?",        -- if s[#s]==0 then skip next, else continue    DONE
    ":",        -- duplicate top    DONE
    "~",        -- remove top   DONE
    "$",        -- rotate top 2 values DONE
    "@",        -- rotate top 3 values DONE
    "&",        -- poptop to registry or read from registry DONE
    "r",        -- reverse stack DONE
    "}{",       -- shift stack right, (or up)/ shift stack left (or down) DONE
    "g",        -- pops A,B push values at B,A in the codebox on the stack DONE
    "p",        -- pops A,B,C from stack, and change value at C,B to A DONE
    "o",        -- pops from stack and output character DONE
    "n",        -- pops from stack, outputs number DONE
    "i",        -- take 1 char of input, and push the ASCII value on stack DONE
    ";",        -- os.exit() DONE
    --[["[",        -- start new thread at next direction change
    "]",        -- end thread
    ".",        -- switch between global and local stack
    "m",        -- Copy global stack to local one --]]
}
f={
"s.dx,s.dy=1,0","s.dx,s.dy=-1,0","s.dx,s.dy=0,-1","s.dx,s.dy=0,1",
"s.dx,s.dy=-s.dy,-s.dx","s.dx,s.dy=s.dy,s.dx","s.dx=-s.dx","s.dy=-s.dy","s.dx,s.dy=-s.dx,-s.dy",
"z=math.random(1,4)f[('><^v'):sub(z,z)]()",
"p(s.s,P(s.s)+P(s.s))","p(s.s,-P(s.s)+P(s.s))","p(s.s,P(s.s)*P(s.s))","p(s.s,(1/P(s.s) or error'Div by 0')*P(s.s))","y=P(s.s)z=P(s.s)p(s.s,z%y)",
"p(s.s,P(s.s)==P(s.s) and 1 or 0)",
"p(s.s,P(s.s)>P(s.s) and 1 or 0)",
"p(s.s,P(s.s)<P(s.s) and 1 or 0)",
"s.x,s.y=s.x+s.dx,s.y+s.dy",
"if #s.s==0 or s.s[#s.s]==0 then f['!']()end",
"p(s.s,s.s[#s.s])",
"P(s.s)",
"z=#s.s s.s[z],s.s[z-1]=s.s[z-1],s.s[z]",
"z=#s.s s.s[z],s.s[z-1],s.s[z-2]=s.s[z-1],s.s[z-2],s.s[z]",
"if s.r then p(s.s,s.r)s.r=nil else s.r=P(s.s)end",
"z={}for k=1,#s.s do z[#s.s-k+1]=s.s[k]end s.s=z",
"p(s.s,1,P(s.s))",
"p(s.s,P(s.s,1))",
"z=P(s.s) p(s.s,s.c[P(s.s)][z])",
"z,w=P(s.s),P(s.s) s.c[P()][w]=z",
"io.write(string.char(P(s.s)))",
"io.write(P(s.s))",
"z=io.read(1) while z:match'%s'do z=io.read(1)end p(s.s,z:byte())",
"os.exit()"
}
z=1
for k in t:gmatch"." do -- will contain the tokens
    f[k]=assert(loadstring(f[z]))
    z=z+1
end

s={             -- state
    c={},                   -- codebox IP wraps around
    s={},                   -- stack
    dx=1,                   -- 1 for +x, -1 for -x, 0 for y/-y
    dy=0,                   -- 1 for +y, -1 for -y, 0 for x/-x 
    x=0,                    -- X of IP
    y=0,                    -- Y of IP
    -- i,                   -- will contain type of quote when reading in a string
    -- r,                   -- registry
    -- codebox implementation
-- codebox layout
--
--
--     -----> +x
--  @  |line of text            -- wrap around to second line
--     |second line of text.    -- negative indices can be used for variables
--     |
--     V +Y

    -- y first coord, x second
    -- wrap around rows if nil row
    -- wrap around cols if nil char.
    move=function(s)
        s.x,s.y=s.x+s.dx,s.y+s.dy
        if s.y > #s.c then
            s.y=0
        elseif s.y<0 then
            s.y=#s.c
        end
        if s.x>#s.c[s.y] and s.dx==1 then
            s.x=0
        elseif s.x<0 then
            s.x=#s.c[s.y]
        end
    end

    }
-- compile to codebox
fh= arg[1] and io.open(arg[1]) or io.stdin  -- use file or stdin

y=0
for line in fh:lines() do
    s.c[y]=setmetatable({},{__index=function() return 0 end})
    for k=1,#line do
        z=line:sub(k,k)
        --print(y,k,"|"..z.."|")
        if not s.i then     -- normal mode
            if z:match"['\"]" then s.i=z end
            if z:match"[^\n\r]"then --filter out only newlines
                s.c[y][k-1]=string.byte(z)
            end -- any spacing allowed.
        else                -- verbatim string mode
            if z==s.i then s.i=nil end
            s.c[y][k-1]=string.byte(z)
        end
    end
    y=y+1
end

io.stdout:setvbuf("no") -- direct output
function dbg()
    print("\nIP",s.y,s.x)
    print("command",string.char(s.c[s.y][s.x]))
    print("codebox:",#s.c)
    for y=0,#s.c do
        print("\tline",y)
        io.write"\t"
        for x=0,#s.c[y] do
            --io.write(string.char(s.c[y][x]),",\t")
            io.write(tostring(s.c[y][x]),",\t")
        end
        io.write"\n"
    end
    print("stack:")
    for k,v in pairs(s.s) do print("",k,v) end
end
function run()
while 1 do
    r,e = pcall(string.char,s.c[s.y][s.x])  -- look up command in codebox
    if not r then print("Error happened reading command",s.c[s.y][s.x])
        dbg()
    end
    q=string.char(s.c[s.y][s.x])
    --print(s.y,s.x,q)
    if s.i then                     -- stringparsing mode       
        if q:match"['\"]" then      -- end-quote
            s.i=nil
        else
            p(s.s,s.c[s.y][s.x])    -- push contents of box, then advance
        end
    else                            -- not in string parsing mode
        if q:match"['\"]" then      -- start-quote
            s.i=q
        elseif q:match"%x" then     -- parsing a number
            p(s.s,tonumber(q,16))
        elseif q:match"[^ %z]" then
            assert(f[q])
            r,e= pcall(f[q])    -- call
            if not r then print("Error calling function for "..q..": \n",e) -- error happened, clarify
            end
        end
    end
    s:move()                                        -- move the IP
end
end
r,e=pcall(run)
if not r then print("Error occured:",e)
dbg()
end

Tidak menempatkan yang berikutnya sebagai hasil, karena menggunakan kompresi secara langsung bukan tujuan yang saya kira;). Menggunakan murgaLua (atau versi Lua dengan lzlib dan luaSocket (untuk decoding base64)), pada hitungan ajaib 1333:

L=loadstring L(zlib.decompress(mime.unb64("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")))()