chore: remove repetitive words (#4400)

<!--
Please read the "Making a PR" section of
[`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/master/CONTRIBUTING.md)
before opening a Pull Request!

* Keep your PR:s small and focused.
* The PR title is what ends up in the changelog, so make it descriptive!
* If applicable, add a screenshot or gif.
* If it is a non-trivial addition, consider adding a demo for it to
`egui_demo_lib`, or a new example.
* Do NOT open PR:s from your `master` branch, as that makes it hard for
maintainers to add commits to your PR.
* Remember to run `cargo fmt` and `cargo cranky`.
* Open the PR as a draft until you have self-reviewed it and run
`./scripts/check.sh`.
* When you have addressed a PR comment, mark it as resolved.

Please be patient! I will review your PR, but my time is limited!
-->

remove repetitive words

Signed-off-by: hardlydearly <799511800@qq.com>

crates/egui/src/callstack.rs

@@ -77,7 +77,7 @@ pub fn capture() -> String {
 
         // Remove stuff that isn't user calls:
         let skip_prefixes = [
-            // "backtrace::", // not needed, since we cut at at egui::callstack::capture
+            // "backtrace::", // not needed, since we cut at egui::callstack::capture
             "egui::",
             "<egui::",
             "<F as egui::widgets::Widget>",

crates/egui/src/containers/frame.rs

@@ -306,7 +306,7 @@ impl Prepared {
         self.content_ui.min_rect() + self.frame.inner_margin + self.frame.outer_margin
     }
 
-    /// Allocate the the space that was used by [`Self::content_ui`].
+    /// Allocate the space that was used by [`Self::content_ui`].
     ///
     /// This MUST be called, or the parent ui will not know how much space this widget used.
     ///

crates/egui/src/context.rs

@@ -257,7 +257,7 @@ pub struct RepaintCause {
     /// What file had the call that requested the repaint?
     pub file: &'static str,
 
-    /// What line number of the the call that requested the repaint?
+    /// What line number of the call that requested the repaint?
     pub line: u32,
 }
 
@@ -924,7 +924,7 @@ impl Context {
         self.write(move |ctx| writer(&mut ctx.memory.options.tessellation_options))
     }
 
-    /// If the given [`Id`] has been used previously the same frame at at different position,
+    /// If the given [`Id`] has been used previously the same frame at different position,
     /// then an error will be printed on screen.
     ///
     /// This function is already called for all widgets that do any interaction,

crates/egui/src/memory.rs

@@ -132,7 +132,7 @@ enum FocusDirection {
     /// Select the widget below the current focused widget.
     Down,
 
-    /// Select the widget to the left of the the current focused widget.
+    /// Select the widget to the left of the current focused widget.
     Left,
 
     /// Select the previous widget that had focus.
@@ -812,7 +812,7 @@ impl Memory {
 
 /// ## Popups
 /// Popups are things like combo-boxes, color pickers, menus etc.
-/// Only one can be be open at a time.
+/// Only one can be open at a time.
 impl Memory {
     /// Is the given popup open?
     pub fn is_popup_open(&self, popup_id: Id) -> bool {

crates/egui/src/text_selection/cursor_range.rs

@@ -63,7 +63,7 @@ impl CursorRange {
         self.primary.ccursor == self.secondary.ccursor
     }
 
-    /// Is `self` a super-set of the the other range?
+    /// Is `self` a super-set of the other range?
     pub fn contains(&self, other: &Self) -> bool {
         let [self_min, self_max] = self.sorted_cursors();
         let [other_min, other_max] = other.sorted_cursors();

crates/egui/src/text_selection/text_cursor_state.rs

@@ -46,7 +46,7 @@ impl TextCursorState {
         self.cursor_range.is_none() && self.ccursor_range.is_none()
     }
 
-    /// The the currently selected range of characters.
+    /// The currently selected range of characters.
     pub fn char_range(&self) -> Option<CCursorRange> {
         self.ccursor_range.or_else(|| {
             self.cursor_range

crates/egui/src/ui.rs

@@ -1886,7 +1886,7 @@ impl Ui {
     /// adjusted up and down to lie in the center of the horizontal layout.
     /// The initial height is `style.spacing.interact_size.y`.
     /// Centering is almost always what you want if you are
-    /// planning to to mix widgets or use different types of text.
+    /// planning to mix widgets or use different types of text.
     ///
     /// If you don't want the contents to be centered, use [`Self::horizontal_top`] instead.
     ///
@@ -1947,7 +1947,7 @@ impl Ui {
     /// adjusted up and down to lie in the center of the horizontal layout.
     /// The initial height is `style.spacing.interact_size.y`.
     /// Centering is almost always what you want if you are
-    /// planning to to mix widgets or use different types of text.
+    /// planning to mix widgets or use different types of text.
     ///
     /// The returned [`Response`] will only have checked for mouse hover
     /// but can be used for tooltips (`on_hover_text`).

crates/egui/src/viewport.rs

@@ -889,7 +889,7 @@ pub enum X11WindowType {
     /// This property is typically used on override-redirect windows.
     Combo,
 
-    /// This indicates the the window is being dragged.
+    /// This indicates the window is being dragged.
     /// This property is typically used on override-redirect windows.
     Dnd,
 }
@@ -1015,7 +1015,7 @@ pub enum ViewportCommand {
     /// Set window to be always-on-top, always-on-bottom, or neither.
     WindowLevel(WindowLevel),
 
-    /// The the window icon.
+    /// The window icon.
     Icon(Option<Arc<IconData>>),
 
     /// Set the IME cursor editing area.

crates/egui/src/widgets/text_edit/state.rs

@@ -67,7 +67,7 @@ impl TextEditState {
         ctx.data_mut(|d| d.insert_persisted(id, self));
     }
 
-    /// The the currently selected range of characters.
+    /// The currently selected range of characters.
     #[deprecated = "Use `self.cursor.char_range` instead"]
     pub fn ccursor_range(&self) -> Option<CCursorRange> {
         self.cursor.char_range()

crates/epaint/src/tessellator.rs

@@ -653,7 +653,7 @@ pub struct TessellationOptions {
     /// Default: `true`.
     pub feathering: bool,
 
-    /// The size of the the feathering, in physical pixels.
+    /// The size of the feathering, in physical pixels.
     ///
     /// The default, and suggested, value for this is `1.0`.
     /// If you use a larger value, edges will appear blurry.