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  1. %{
  2. #include <stdio.h>
  3. %}
  4.  
  5. %%
  6. ^[+-]?[0-9]+$            { printf("Valid Integer\n"); }
  7. ^[+-]?[0-9]*\.[0-9]+$    { printf("Valid Float\n"); }
  8. ^[+-]?[0-9]+\.[0-9]*$    { printf("Valid Float\n"); }
  9. .*                       { printf("Invalid Number\n"); }
  10. %%
  11.  
  12. int main() {
  13.     yylex();
  14.     return 0;
  15. }
  16.  
  17. int yywrap() {
  18.     return 1;
  19. }
  20.  
Success #stdin #stdout #stderr 0.03s 6908KB
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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/2eCyeL/prog:19:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/dsTcaq
language:
Prolog (swi 7.6.4)
created:
3 days ago
visibility:
public

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