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Encoding:
Prolog Source  |  1990-03-26  |  374 b   |  20 lines
  1. /*
  2.    Copyright (c) 1986, 90 by Prolog Development Center
  3. */
  4. predicates
  5.   extend(string, string) 
  6.  
  7. clauses
  8.   extend(S,S):-concat(_,".pro",S), !.
  9.   extend(S,S1):-concat(S,".pro",S1).
  10.  
  11. goal
  12.         comline(X),
  13.     extend(X,X1),
  14.     file_str(X1,S),
  15.     makewindow(1,23,8,"EDITOR",0,0,25,80),
  16.     edit(S,S1,"","","",0,"",RET),
  17.     removewindow,
  18.     RET><1,!,
  19.     file_str(X1,S1).
  20.