add commands and utils packages

packages/tiptap-utils/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "tiptap-utils",
+  "version": "0.1.0",
+  "description": "Utility functions for tiptap",
+  "homepage": "https://tiptap.scrumpy.io",
+  "license": "MIT",
+  "main": "dist/utils.common.js",
+  "module": "dist/utils.esm.js",
+  "unpkg": "dist/utils.js",
+  "jsdelivr": "dist/utils.js",
+  "files": [
+    "src",
+    "dist"
+	],
+	"repository": {
+    "type": "git",
+    "url": "git+https://github.com/heyscrumpy/tiptap.git"
+  },
+  "bugs": {
+    "url": "https://github.com/heyscrumpy/tiptap/issues"
+  },
+  "dependencies": {
+    "prosemirror-utils": "^0.6.5",
+    "prosemirror-tables": "^0.7.6"
+  }
+}

packages/tiptap-utils/src/index.js

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+export { default as markIsActive } from './utils/markIsActive'
+export { default as nodeIsActive } from './utils/nodeIsActive'

packages/tiptap-utils/src/utils/markIsActive.js

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+export default function (state, type) {
+	const {
+		from,
+		$from,
+		to,
+		empty,
+	} = state.selection
+
+	if (empty) {
+		return !!type.isInSet(state.storedMarks || $from.marks())
+	}
+
+	return !!state.doc.rangeHasMark(from, to, type)
+}

packages/tiptap-utils/src/utils/nodeIsActive.js

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+import { findParentNode } from 'prosemirror-utils'
+
+export default function (state, type, attrs) {
+	const predicate = node => node.type === type
+	const parent = findParentNode(predicate)(state.selection)
+
+	if (attrs === {} || !parent) {
+		return !!parent
+	}
+
+	return parent.node.hasMarkup(type, attrs)
+}