feat(clear_fmt): add methods to clear formatting and reset it to default

src/document.rs

@@ -168,6 +168,13 @@ impl KdlDocument {
         self.trailing = Some(trailing.into());
     }
 
+    /// Clears leading and trailing text (whitespace, comments). `KdlNode`s in
+    /// this document will be unaffected.
+    pub fn clear_fmt(&mut self) {
+        self.leading = None;
+        self.trailing = None;
+    }
+
     /// Auto-formats this Document.
     ///
     /// Note: This currently removes comments as well.

src/entry.rs

@@ -81,6 +81,13 @@ impl KdlEntry {
         self.trailing = Some(trailing.into());
     }
 
+    /// Clears leading and trailing text (whitespace, comments), as well as
+    /// resetting this entry's value to its default representation.
+    pub fn clear_fmt(&mut self) {
+        self.leading = None;
+        self.trailing = None;
+    }
+
     /// Gets the custom string representation for this KdlEntry's [`KdlValue`].
     pub fn value_repr(&self) -> Option<&str> {
         self.value_repr.as_deref()

src/identifier.rs

@@ -31,6 +31,13 @@ impl KdlIdentifier {
         self.repr = Some(repr.into());
     }
 
+    /// Resets this identifier to its default representation. It will attempt
+    /// to make it an unquoted identifier, and fall back to a string
+    /// representation if that would be invalid.
+    pub fn clear_fmt(&mut self) {
+        self.repr = None;
+    }
+
     /// Auto-formats this identifier.
     pub fn fmt(&mut self) {
         self.repr = None;

src/node.rs

@@ -106,6 +106,15 @@ impl KdlNode {
         self.trailing = Some(trailing.into());
     }
 
+    /// Clears leading and trailing text (whitespace, comments), as well as
+    /// the space before the children block, if any. Individual entries and
+    /// their formatting will be preserved.
+    pub fn clear_fmt(&mut self) {
+        self.leading = None;
+        self.trailing = None;
+        self.before_children = None;
+    }
+
     /// Fetches an entry by key. Number keys will look up arguments, strings
     /// will look up properties.
     pub fn get(&self, key: impl Into<NodeKey>) -> Option<&KdlEntry> {