Move outer_backticks to a util module

This is because it shall be used by other functions later on.

It was made more generic by accepting raw bytes instead of strictly
UTF-8 strings. This allows future functions to call it without having to
convert the contents to UTF-8 strings first.

1 files changed, 4 insertions, 19 deletions

diff --git a/src/renderer.rs b/src/renderer.rs
index 6f13f59..d9cf7b4 100644
--- a/src/renderer.rs
+++ b/src/renderer.rs
@@ -7,7 +7,9 @@ use std::{
 use crate::{
     logger::Logger,
     normalizer::NormalizedPath,
-    util::{language::detect_language, path_display::display_path},
+    util::{
+        fence::generate_outer_backticks, language::detect_language, path_display::display_path,
+    },
 };
 
 const DEFAULT_MAX_FILE_SIZE: u64 = 1_000_000;
@@ -81,7 +83,7 @@ impl<W: Write> Renderer<W> {
 
     fn write_file(&mut self, filename: &Path, contents: &str) -> std::io::Result<()> {
         let name = display_path(filename);
-        let fence = outer_backticks(contents);
+        let fence = generate_outer_backticks(contents);
         let language = detect_language(filename, contents);
         self.log_file_render(filename);
         writeln!(self.output)?;
@@ -131,23 +133,6 @@ impl<W: Write> Renderer<W> {
     }
 }
 
-fn outer_backticks(contents: &str) -> String {
-    let mut max_ticks = 0;
-    let mut current_count = 0;
-    for char in contents.chars() {
-        if char == '`' {
-            current_count += 1;
-            if current_count > max_ticks {
-                max_ticks = current_count;
-            }
-        } else {
-            current_count = 0;
-        }
-    }
-    let fence_len = std::cmp::max(3, max_ticks + 1);
-    "`".repeat(fence_len)
-}
-
 fn human_readable_size(bytes: u64) -> String {
     const UNITS: [&str; 5] = ["B", "KiB", "MiB", "GiB", "TiB"];