differentiate between nbsp and other whitespace (#348)

src/parse/patterns.js

@@ -1 +1 @@
-export const whitespace = /\s/;
+export const whitespace = /[ \t\r\n]/;

test/generator/nbsp/_config.js

@@ -0,0 +1,8 @@
+export default {
+	html: `<span>&nbsp;</span>`,
+
+	test ( assert, component, target ) {
+		const text = target.querySelector( 'span' ).textContent;
+		assert.equal( text.charCodeAt( 0 ), 160 );
+	}
+};

test/generator/nbsp/main.html

@@ -0,0 +1 @@
+<span>&nbsp;</span>

test/parser/nbsp/input.html

@@ -0,0 +1 @@
+<span>&nbsp;</span>

test/parser/nbsp/output.json

@@ -0,0 +1,27 @@
+{
+	"hash": 2678229240,
+	"html": {
+		"start": 0,
+		"end": 19,
+		"type": "Fragment",
+		"children": [
+			{
+				"start": 0,
+				"end": 19,
+				"type": "Element",
+				"name": "span",
+				"attributes": [],
+				"children": [
+					{
+						"start": 6,
+						"end": 12,
+						"type": "Text",
+						"data": " "
+					}
+				]
+			}
+		]
+	},
+	"css": null,
+	"js": null
+}