trying to add a way for rust to find number of slides in reveal.js

src/rust/reveal_js.rs

@@ -0,0 +1,41 @@
+// use dirs;
+use std::fs::read_to_string;
+
+// struct Slide {
+//     num_fragments: usize,
+// }
+
+// struct Presentation {
+//     num_slides: usize,
+//     num_fragments: usize,
+// }
+
+pub fn count_slides_and_fragments(html_file_path: &str) -> i32 {
+    // Read the HTML file
+    let html_content = read_to_string(html_file_path).expect("Failed to read HTML file");
+
+    // Split HTML content by slide delimiters
+    let slide_delimiter = "<section";
+    let slide_content: Vec<&str> = html_content.split(slide_delimiter).collect();
+
+    // Count slides and fragments
+    let num_slides = slide_content.len() - 1;
+    let mut num_fragments = 0;
+
+    for slide_html in slide_content.iter().skip(1) {
+        let fragments = slide_html.matches("fragment").count();
+        num_fragments += fragments;
+    }
+
+    let total = num_slides + num_fragments;
+
+    total as i32
+}
+
+// fn main() {
+//     let html_file_path = "path/to/presentation.html";
+//     let presentation = count_slides_and_fragments(html_file_path);
+
+//     println!("Total number of slides: {}", presentation.num_slides);
+//     println!("Total number of fragments: {}", presentation.num_fragments);
+// }