Move LK structure into own file.

src/lk.rs

@@ -0,0 +1,38 @@
+use std::{cell::RefCell, rc::Rc};
+use std::collections::HashMap;
+use regex::{Regex, Captures};
+use crate::structs::Password;
+
+#[derive(PartialEq, Debug)]
+pub struct LK {
+  pub db: HashMap<Rc<String>, Rc<RefCell<Password>>>,
+}
+
+impl LK {
+  pub fn fix_hierarchy(&self) {
+    lazy_static! {
+      static ref RE: Regex = Regex::new(r"\s*\^([!-~]+)").unwrap();
+    }
+    for (_, name) in &self.db {
+      if name.borrow().comment.is_some() {
+        let mut folder: Option<String> = None;
+        let prev_comment = name.borrow().comment.as_ref().unwrap().clone();
+        let comment = RE.replace(prev_comment.as_str(), |c: &Captures| { folder = Some(c[1].to_string()); "" });
+        if folder.is_some() {
+          let folder_name = folder.unwrap();
+          for (_, entry) in &self.db {
+            if *entry.borrow().name == *folder_name {
+              {
+                let mut tmp = name.borrow_mut();
+                tmp.parent = Some(entry.clone());
+                if comment.len() == 0 { tmp.comment = None }
+                else { tmp.comment = Some(comment.to_string()) }
+              }
+              break;
+            }
+          }
+        }
+      }
+    }
+  }  
+}