Re-write suggestions

src/lib/editor/extensions/CodeInline.ts

@@ -0,0 +1,75 @@
+import {InputRule, mergeAttributes, Node, PasteRule} from "@tiptap/core"
+import type {CodeOptions} from "@tiptap/extension-code"
+
+const inputRegex = /(?:^|\s)(`(?!\s+`)((?:[^`]+))`(?!\s+`))$/
+
+const pasteRegex = /(?:^|\s)(`(?!\s+`)((?:[^`]+))`(?!\s+`))/g
+
+export type CodeInlineOptions = object
+
+export const CodeInline = Node.create<CodeOptions>({
+  name: "codeInline",
+  content: "text*",
+  marks: "",
+  group: "inline",
+  inline: true,
+  code: true,
+  defining: true,
+  addOptions() {
+    return {
+      HTMLAttributes: {},
+    }
+  },
+  parseHTML() {
+    return [{tag: "code"}]
+  },
+  renderHTML({HTMLAttributes}) {
+    return ["code", mergeAttributes(this.options.HTMLAttributes, HTMLAttributes), 0]
+  },
+  addKeyboardShortcuts() {
+    return {
+      // remove code block when at start of document or code block is empty
+      Backspace: () => {
+        const {empty, $anchor, $from} = this.editor.state.selection
+
+        const isAtEnd = $from.parentOffset === $from.parent.nodeSize - 2
+
+        if (!empty || $anchor.parent.type.name !== this.name) {
+          return false
+        }
+
+        if (isAtEnd) {
+          const {tr} = this.editor.state
+          tr.delete($from.start(), $from.end() + 1)
+          this.editor.view.dispatch(tr)
+        }
+
+        return false
+      },
+    }
+  },
+  addInputRules() {
+    return [
+      new InputRule({
+        find: inputRegex,
+        handler: ({state, range, match}) => {
+          const textNode = state.schema.text(match[2])
+          const codeNode = this.type.create(null, textNode)
+          state.tr.replaceWith(range.from, range.to, codeNode).insertText(" ")
+        },
+      }),
+    ]
+  },
+  addPasteRules() {
+    return [
+      new PasteRule({
+        find: pasteRegex,
+        handler: ({state, range, match}) => {
+          const textNode = state.schema.text(match[2])
+          const codeNode = this.type.create(null, textNode)
+          state.tr.replaceWith(range.from, range.to, codeNode).insertText(" ")
+        },
+      }),
+    ]
+  },
+})