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  1. %{
  2.     #include<stdio.h>
  3.     int lc=0,sc=0,wc=0,tc=0,ch=0;
  4. %}
  5. %%
  6. [\n]{lc++,ch+=yyleng;}
  7. [\t]{sc++,ch+=yyleng;}
  8. [^\t]{tc++,ch+=yyleng;}
  9. [^\t\n]+{wc++,ch+=yyleng;}
  10. %%
  11. int yywrap(){return 1;}
  12.  
  13. int main(){
  14.     printf("enter the string");
  15.     yylex();
  16.     printf("words: %d",wc);
  17.     printf("lines: %d",lc);
  18.     printf("spaces: %d",sc);
  19.     printf("tabs,char %d,%d",tc,ch);
  20.     return 0;
  21. }
Success #stdin #stdout #stderr 0.03s 6912KB
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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/MgcFPe/prog:21:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/jWfnHQ
language:
Prolog (swi 7.6.4)
created:
5 days ago
visibility:
public

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