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  1. %{
  2.  
  3. #include <stdio.h>
  4.  
  5. %}
  6.  
  7.  
  8.  
  9. %%
  10.  
  11.  
  12.  
  13. [0-9]+\.[0-9]+  {
  14.  
  15.                     double float_num = atof(yytext);
  16.  
  17.                     int int_part = (int)float_num;
  18.  
  19.                     printf("%d\n", int_part);
  20.  
  21.                 }
  22.  
  23.  
  24.  
  25. .|\n            ; // Ignore any other characters
  26.  
  27.  
  28.  
  29. %%
  30.  
  31.  
  32.  
  33. int yywrap() {
  34.  
  35.     return 1;
  36.  
  37. }
  38.  
  39.  
  40.  
  41. int main() {
  42.  
  43.     yylex();
  44.  
  45.     return 0;
  46.  
  47. }
  48.  
  49.  
Success #stdin #stdout #stderr 0.02s 6736KB
comments (?)
stdin 
3.142
2.719
42.0
stdout 
Standard output is empty
stderr 
ERROR: /home/3tNUOn/prog:48:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? ERROR: No previous search
   Exception: (3) program ? ERROR: No previous search
   Exception: (3) program ? EOF: exit
https://ideone.com/dQW9eP
language:
Prolog (swi 7.6.4)
created:
2 years ago
visibility:
public

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