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  1. %{
  2.   #include<stdio.h>
  3.   int lc=0,wc=0,cc=0,sc=0;
  4. %}
  5. %%
  6. [\n] {lc++;cc+=yylength;}
  7. [\t] {sc++;cc+=yylength;}
  8. [^\n\t]+ {wc++;cc+=yylength;}
  9. %%
  10. int yywrap()
  11. {
  12.   return 1;
  13. }
  14. int main(int argc,char* argv[])
  15. {
  16.   printf("enter the input");
  17.   yylex();
  18.   printf("number of lines=%d\n",lc);
  19.   printf("number od words=%d\n",wc);
  20.   printf("number of space=%d\n",sc);
  21.   printf("NUmber of characters=%d\n",cc);
  22. }
  23.  
Success #stdin #stdout #stderr 0.02s 6944KB
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stdin
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Hello World
stdout
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Standard output is empty
stderr
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ERROR: /home/DjGBxE/prog:22:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/EEOYdR
language:
Prolog (swi 7.6.4)
created:
3 days ago
visibility:
public

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