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  1. %{
  2. #include<stdio.h>
  3. #include<ctype.h>
  4. int i;
  5. %}
  6.  
  7. %%
  8.  
  9. [a-zA-Z]*
  10. {   printf("ffffff");
  11.     for(i=0;i<yyleng-2;i++)
  12.     {
  13.         if(yytext[i]=='a'&&yytext[i+1]=='b'&&yytext[i+2]=='c')
  14.         {
  15.             yytext[i]='A';
  16.             yytext[i+1]='B';
  17.             yytext[i+2]='C';
  18.         }
  19.     }
  20.     printf("%s",yytext);
  21. }
  22.  
  23. [\t]* return 1;
  24. .* {ECHO;}
  25. \n {printf("%s",yytext);}
  26. %%
  27. int main()
  28. {
  29. yylex();
  30. return 0;}
  31. int yywrap(){return 1;}
Success #stdin #stdout #stderr 0.02s 6956KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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ERROR: /home/K0CIYJ/prog:31:22: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/M8vBjk
language:
Prolog (swi 7.6.4)
created:
63 days ago
visibility:
public

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