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  1. %{
  2. #include<stdio.h>
  3. int num=0,op=0;
  4. %}
  5.  
  6. %%
  7. [0-9]+ {num++;}
  8. [+*/-] {op++;}
  9. . ;
  10. %%
  11.  
  12. int main(){
  13. yylex();
  14. printf("Numbers=%d Operators=%d",num,op);
  15. }
  16. int yywrap(){return 1;}
Success #stdin #stdout #stderr 0.02s 6884KB
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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/UcuBCz/prog:2:1: Syntax error: Operator expected
ERROR: /home/UcuBCz/prog:16:22: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/BI1DTU
language:
Prolog (swi 7.6.4)
created:
7 hours ago
visibility:
public

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