🚚 refactor: Rename insert_case1 to insert_case0.

Author: make-github-pseudonymous-again

src/index.js

@@ -18,7 +18,7 @@ export {default as predecessor} from './family/predecessor.js';
 export {default as sibling} from './family/sibling.js';
 export {default as uncle} from './family/uncle.js';
 export {default as insert} from './insertion/insert.js';
-export {default as insert_case1} from './insertion/insert_case1.js';
+export {default as insert_case0} from './insertion/insert_case0.js';
 export {default as insert_case2} from './insertion/insert_case2.js';
 export {default as insert_case3} from './insertion/insert_case3.js';
 export {default as insert_case4} from './insertion/insert_case4.js';

src/insertion/insert.js

@@ -10,7 +10,7 @@ import Node from '../types/Node.js';
  * search tree.
  * For our red-black tree, all that is left to do is fix the red-black tree
  * properties in case they have been violated by this insertion. This is fixed
- * by {@link insert_case1}.
+ * by {@link insert_case0}.
  *
  * @param {Function} compare - The comparison function to use.
  * @param {Node} A - The root of the tree.

src/insertion/insert_case1.js renamed to src/insertion/insert_case0.js

@@ -11,7 +11,7 @@ import insert_case2 from './insert_case2.js';
  *
  * @param {Node} n - The input node.
  */
-const insert_case1 = (n) => {
+const insert_case0 = (n) => {
 	assert(n instanceof Node);
 	assert(n._color === RED);
 	assert(n.left._color === BLACK);
@@ -27,4 +27,4 @@ const insert_case1 = (n) => {
 	else insert_case2(n);
 };
 
-export default insert_case1;
+export default insert_case0;

src/insertion/insert_case3.js

@@ -4,7 +4,7 @@ import BLACK from '../color/BLACK.js';
 import RED from '../color/RED.js';
 import uncle from '../family/uncle.js';
 import grandparent from '../family/grandparent.js';
-import insert_case1 from './insert_case1.js';
+import insert_case0 from './insert_case0.js';
 import insert_case4 from './insert_case4.js';
 
 /**
@@ -28,7 +28,7 @@ const insert_case3 = (n) => {
 	/**
 	 * If n has a non-leaf uncle and this uncle is red then we simply
 	 * repaint the parent and the uncle of n in black, the grandparent of
-	 * n in red, then call insert_case1 on n's grandparent.
+	 * n in red, then call insert_case0 on n's grandparent.
 	 *
 	 *             B                    >R
 	 *           /   \                 /   \
@@ -44,7 +44,7 @@ const insert_case3 = (n) => {
 		u._color = BLACK;
 		const g = grandparent(n);
 		g._color = RED;
-		insert_case1(g);
+		insert_case0(g);
 	} else insert_case4(n);
 };