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  1. %{
  2. #include<stdio.h>
  3. int sc=0,wc=0,lc=0,cc=0;
  4. %}
  5.  
  6. %%
  7. [\n]        { lc++; cc+=yyleng; }
  8. [ \t]       { sc++; cc+=yyleng; }
  9. [^\t\n ]+   { wc++; cc+=yyleng; }
  10. %%
  11.  
  12. int main()
  13. {
  14.     printf("Enter the input:\n");
  15.     yylex();
  16.  
  17.     printf("The number of lines = %d\n",lc);
  18.     printf("The number of spaces = %d\n",sc);
  19.     printf("The number of words = %d\n",wc);
  20.     printf("The number of characters = %d\n",cc);
  21. }
  22.  
  23. int yywrap()
  24. {
  25.     return 1;
  26. }
  27.  
Success #stdin #stdout #stderr 0.03s 6924KB
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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/JQzQX1/prog:26:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/VfQyzW
language:
Prolog (swi 7.6.4)
created:
4 hours ago
visibility:
public

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