chore(renderer): Add doc comments

src/renderer/mod.rs

@@ -1,3 +1,37 @@
+//! The renderer for [`Snippet`]s
+//!
+//! # Example
+//! ```
+//! use annotate_snippets::renderer::Renderer;
+//! use annotate_snippets::snippet::{Annotation, AnnotationType, Slice, Snippet};
+//! let snippet = Snippet {
+//!     title: Some(Annotation {
+//!         label: Some("mismatched types"),
+//!         id: None,
+//!         annotation_type: AnnotationType::Error,
+//!     }),
+//!     footer: vec![],
+//!     slices: vec![
+//!         Slice {
+//!             source: "Foo",
+//!             line_start: 51,
+//!             origin: Some("src/format.rs"),
+//!             fold: false,
+//!             annotations: vec![],
+//!         },
+//!         Slice {
+//!             source: "Faa",
+//!             line_start: 129,
+//!             origin: Some("src/display.rs"),
+//!             fold: false,
+//!             annotations: vec![],
+//!         },
+//!     ],
+//!  };
+//!
+//!  let renderer = Renderer::styled();
+//!  println!("{}", renderer.render(snippet));
+
 pub mod margin;
 
 use crate::display_list::DisplayList;
@@ -6,6 +40,7 @@ use anstyle::{AnsiColor, Effects, Style};
 use margin::Margin;
 use std::fmt::Display;
 
+/// A renderer for [`Snippet`]s
 #[derive(Clone)]
 pub struct Renderer {
     anonymized_line_numbers: bool,
@@ -14,6 +49,7 @@ pub struct Renderer {
 }
 
 impl Renderer {
+    /// Render a snippet into a `Display`able object
     pub fn render<'a>(&'a self, snippet: Snippet<'a>) -> impl Display + 'a {
         DisplayList::new(
             snippet,
@@ -50,51 +86,90 @@ impl Renderer {
         }
     }
 
+    /// Anonymize line numbers
+    ///
+    /// This enables (or disables) line number anonymization. When enabled, line numbers are replaced
+    /// with `LL`.
+    ///
+    /// # Example
+    ///
+    /// ```text
+    ///   --> $DIR/whitespace-trimming.rs:4:193
+    ///    |
+    /// LL | ...                   let _: () = 42;
+    ///    |                                   ^^ expected (), found integer
+    ///    |
+    /// ```
     pub const fn anonymized_line_numbers(mut self, anonymized_line_numbers: bool) -> Self {
         self.anonymized_line_numbers = anonymized_line_numbers;
         self
     }
 
+    /// Set the margin for the output
+    ///
+    /// This controls the various margins of the output.
+    ///
+    /// # Example
+    ///
+    /// ```text
+    /// error: expected type, found `22`
+    ///   --> examples/footer.rs:29:25
+    ///    |
+    /// 26 | ...         annotations: vec![SourceAnnotation {
+    ///    |                               ---------------- info: while parsing this struct
+    /// ...
+    /// 29 | ...         range: <22, 25>,
+    ///    |                     ^^
+    ///    |
+    /// ```
     pub const fn margin(mut self, margin: Option<Margin>) -> Self {
         self.margin = margin;
         self
     }
 
+    /// Set the output style for `error`
     pub const fn error(mut self, style: Style) -> Self {
         self.stylesheet.error = style;
         self
     }
 
+    /// Set the output style for `warning`
     pub const fn warning(mut self, style: Style) -> Self {
         self.stylesheet.warning = style;
         self
     }
 
+    /// Set the output style for `info`
     pub const fn info(mut self, style: Style) -> Self {
         self.stylesheet.info = style;
         self
     }
 
+    /// Set the output style for `note`
     pub const fn note(mut self, style: Style) -> Self {
         self.stylesheet.note = style;
         self
     }
 
+    /// Set the output style for `help`
     pub const fn help(mut self, style: Style) -> Self {
         self.stylesheet.help = style;
         self
     }
 
+    /// Set the output style for line numbers
     pub const fn line_no(mut self, style: Style) -> Self {
         self.stylesheet.line_no = style;
         self
     }
 
+    /// Set the output style for emphasis
     pub const fn emphasis(mut self, style: Style) -> Self {
         self.stylesheet.emphasis = style;
         self
     }
 
+    /// Set the output style for none
     pub const fn none(mut self, style: Style) -> Self {
         self.stylesheet.none = style;
         self