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  1. %{
  2. #include <stdio.h>
  3. %}
  4.  
  5. %%
  6. [a-z]  { putchar(toupper(yytext[0])); }   // Convert lowercase letter to uppercase
  7. .      { putchar(yytext[0]); }             // Copy other characters (including spaces, punctuation, etc.)
  8. %%
  9.  
  10. int main() {
  11.     yylex();  // Start lexical analysis
  12.     return 0;
  13.  
Success #stdin #stdout #stderr 0.03s 6896KB
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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/N9QXsV/prog:2:1: Syntax error: Operator expected
ERROR: /home/N9QXsV/prog:12:13: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/7W0f0B
language:
Prolog (swi 7.6.4)
created:
2 days ago
visibility:
public

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