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  1. %{
  2.  #include<stdio.h>
  3.  int sc=0,wc=0,lc=0,cc=0;
  4.  %}
  5.  %%
  6.  [\n] { lc++; cc+=yyleng;}
  7.  [ \t] { sc++; cc+=yyleng;}
  8.  [^\t\n ]+ { wc++; cc+=yyleng;}
  9.  %%
  10.  int main(int argc ,char* argv[ ])
  11.  {
  12.  printf("Enter the input:\n");
  13.  yylex();
  14.  printf("The number of lines=%d\n",lc);
  15.  printf("The number of spaces=%d\n",sc);
  16.  printf("The number of words=%d\n",wc);
  17.  printf("The number of characters are=%d\
  18.  n",cc);
  19.  }
  20.  int yywrap( )
  21.  {
  22.  return 1;
  23.  }
Success #stdin #stdout #stderr 0.03s 6864KB
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stdin
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 you can't see me
 cenaaa
stdout
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Standard output is empty
stderr
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ERROR: /home/q3x3Mq/prog:23:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? ERROR: Unknown option (h for help)
   Exception: (3) program ? EOF: exit
https://ideone.com/tSP9uL
language:
Prolog (swi 7.6.4)
created:
21 hours ago
visibility:
public

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