fork download
copy 
  1. %{
  2. #include <stdio.h>
  3. #include <string.h>
  4. #include <stdlib.h>
  5.  
  6. int num_questions = 0;
  7. int num_words = 0;
  8. int num_lines = 0;
  9.  
  10. void count_words(const char *line) {
  11.     char *token = strtok(line, " \t\n");
  12.     while (token != NULL) {
  13.         num_words++;
  14.         token = strtok(NULL, " \t\n");
  15.     }
  16. }
  17.  
  18. %}
  19.  
  20. %%
  21.  
  22. // Match department line
  23. "DEpartment[ ]*[:-][ ]*[A-Za-z ]+" {
  24.     printf("Department: %s\n", yytext);
  25. }
  26.  
  27. // Match semester line
  28. "SEM[ ]*:[ ]*[a-zA-Z0-9]+" {
  29.     printf("Semester: %s\n", yytext);
  30. }
  31.  
  32. // Match questions
  33. "question[ ]*[0-9]+[:-][ ]*.*" {
  34.     printf("Found Question: %s\n", yytext);
  35.     num_questions++;
  36.     count_words(yytext); // Count words in the question line
  37. }
  38.  
  39. // Count lines
  40. \n {
  41.     num_lines++;
  42. }
  43.  
  44. // Ignore comments and other irrelevant text
  45. .|\n { /* ignore */ }
  46.  
  47. %%
  48.  
  49. int main() {
  50.     // Simulated input text
  51.     const char *input = "DEpartment:- AIML\nSEM: v\nquestion 1:- What is compiler?\nquestion 2:- What is lexical analysis?\nquestion 3:- What is token?\nquestion 4:- Define regular expression?\n";
  52.  
  53.     // Use fmemopen to simulate file input
  54.     FILE *input_stream = fmemopen((void *)input, strlen(input), "r");
  55.     if (!input_stream) {
  56.         perror("fmemopen failed");
  57.         return 1;
  58.     }
  59.  
  60.     yyin = input_stream;
  61.     yylex();
  62.  
  63.     fclose(input_stream);
  64.  
  65.     // Print summary statistics
  66.     printf("Total Lines: %d\n", num_lines);
  67.     printf("Total Words: %d\n", num_words);
  68.     printf("Total Questions: %d\n", num_questions);
  69.  
  70.     return 0;
  71. }
  72.  
Success #stdin #stdout #stderr 0.03s 6972KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
stderr
copy 
ERROR: /home/xBaR8H/prog:71:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/VE1X3d
language:
Prolog (swi 7.6.4)
created:
1 day ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!