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  1. : WITH-EACH-CHAR  ( xt -- )
  2.     S" BEGIN ?DUP WHILE SWAP DUP C@" EVALUATE
  3.     ' COMPILE,
  4.     S" OVER C! SWAP 1 /STRING REPEAT DROP" EVALUATE ; IMMEDIATE COMPILE-ONLY
  5.  
  6. : COMMA>SPACE  ( c1 -- c2 )
  7.     DUP [CHAR] , = IF DROP BL THEN ;
  8.  
  9. : COMMAS>SPACES  ( c-addr u -- )
  10.     WITH-EACH-CHAR COMMA>SPACE ;
  11.  
  12. 2VARIABLE STR
  13. S" 1,2,3,4,5,6" STR 2!
  14. STR 2@ COMMAS>SPACES
  15. STR 2@ TYPE
  16.  
  17. CR SEE COMMAS>SPACES
  18.  
  19. BYE
Success #stdin #stdout 0s 4540KB
comments (?)
stdin 
Standard input is empty
stdout 
1 2 3 4 5 6

: COMMAS>SPACES  
  BEGIN  ?dup 
  WHILE  swap dup c@ COMMA>SPACE over c! swap 1 /string 
  REPEAT 
  drop ;
https://ideone.com/Dy0Tyo
language:
Forth (gforth 0.7.3)
created:
6 years ago
visibility:
public

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