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  1. %{
  2. #include <stdio.h>
  3.  
  4. int lines = 0, spaces = 0, tabs = 0, words = 0;
  5. %}
  6.  
  7. %%
  8.  
  9. "\n"        { lines++; }
  10. " "         { spaces++; }
  11. "\t"        { tabs++; }
  12. [A-Za-z0-9]+ { words++; }
  13.  
  14. .           ;   /* Ignore other characters */
  15.  
  16. %%
  17.  
  18. int main() {
  19. printf("enter input");
  20.     yylex();
  21.     printf("Lines: %d\n", lines);
  22.     printf("Spaces: %d\n", spaces);
  23.     printf("Tabs: %d\n", tabs);
  24.     printf("Words: %d\n", words);
  25.     return 0;
  26. }
Success #stdin #stdout #stderr 0.03s 6916KB
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ERROR: /home/jd7Qia/prog:2:1: Syntax error: Operator expected
ERROR: /home/jd7Qia/prog:26:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit


    

	
			

					
			
			
			
			
			
			
			
			

			
			
			
		

	
		
		

			

			                        







			
			

				

	
					
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Prolog (swi 7.6.4)

					

					

						
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5 hours ago

					

					

						
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