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  1. %{
  2.     #include <stdio.h>
  3. %}
  4. %%
  5. [a-zA-Z_][a-zA-Z0-9_]*   { printf("Identifier: %s\n", yytext); }
  6. .   { }  // Ignore other characters
  7. %%
  8. int main() {
  9.     yylex();
  10.     return 0;
  11. }
  12.  
  13. int yywrap() { return 1; }
  14.  
  15.  
Success #stdin #stdout #stderr 0.02s 6948KB
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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/pCe784/prog:2:5: Syntax error: Operator expected
ERROR: /home/pCe784/prog:14:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/l4GCL7
language:
Prolog (swi 7.6.4)
created:
281 days ago
visibility:
public

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