Add notations to jump to the first and last pages

doc/NAVIGATION.md

@@ -50,4 +50,6 @@ For the page names to be resolved, you'll need to name the first page of each ca
 
 `-` or `+` can be prepended to a page number to jump to a relative page.
 
-You can jump to a random page by specifying `_` as the page number.
+Instead of the page number, you can specify one of the following characters:
+- `(` and `)` to jump to the first and last page.
+- `_` to jump to a random page.

src/view/home/mod.rs

@@ -1321,7 +1321,11 @@ impl View for Home {
  true
  },
  Event::Submit(ViewId::GoToPageInput, ref text) => {
- if text == "_" {
+ if text == "(" {
+ self.go_to_page(0, hub, context);
+ } else if text == ")" {
+ self.go_to_page(self.pages_count.saturating_sub(1), hub, context);
+ } else if text == "_" {
  let index = (context.rng.next_u64() % self.pages_count as u64) as usize;
  self.go_to_page(index, hub, context);
  } else if let Ok(index) = text.parse::<usize>() {

src/view/reader/mod.rs

@@ -2934,6 +2934,10 @@ impl View for Reader {
  if text == "_" {
  let location = (context.rng.next_u64() % self.pages_count as u64) as usize;
  self.go_to_page(location, true, hub, context);
+ } else if text == "(" {
+ self.go_to_page(0, true, hub, context);
+ } else if text == ")" {
+ self.go_to_page(self.pages_count.saturating_sub(1), true, hub, context);
  } else if let Ok(number) = caps[2].parse::<f64>() {
  let location = if !self.synthetic {
  let mut index = number.max(0.0) as usize;