From: Jason Woofenden <jason@jasonwoof.com>
Date: Wed, 17 May 2017 05:13:11 +0000 (-0400)
Subject: round-trip newlines at start of pre, textare, listing
X-Git-Url: https://jasonwoof.com/gitweb/?p=peach-html5-editor.git;a=commitdiff_plain;h=65ceb13d7a5cbf9bda7995f98bbfb75811a6933b

round-trip newlines at start of pre, textare, listing
---

diff --git a/editor.js b/editor.js
index 1a408ba..0c9cf46 100644
--- a/editor.js
+++ b/editor.js
@@ -256,33 +256,40 @@ function enc_text (txt) {
 
 // no closing tag, cannot have children
 void_elements = {
-	area: true,
-	base: true,
-	br: true,
-	col: true,
-	embed: true,
-	hr: true,
-	img: true,
-	input: true,
-	keygen: true,
-	link: true,
-	meta: true,
-	param: true,
-	source: true,
-	track: true,
-	wbr: true
+	area: 1,
+	base: 1,
+	br: 1,
+	col: 1,
+	embed: 1,
+	hr: 1,
+	img: 1,
+	input: 1,
+	keygen: 1,
+	link: 1,
+	meta: 1,
+	param: 1,
+	source: 1,
+	track: 1,
+	wbr: 1
 }
 
 // contents are not html encoded
 plaintext_elements = {
-	style: true,
-	script: true,
-	xmp: true,
-	iframe: true,
-	noembed: true,
-	noframes: true,
-	plaintext: true,
-	noscript: true
+	style: 1,
+	script: 1,
+	xmp: 1,
+	iframe: 1,
+	noembed: 1,
+	noframes: 1,
+	plaintext: 1,
+	noscript: 1
+}
+
+// parser deletes a starting newline inside:
+newline_eating_elements = {
+	pre: 1,
+	textarea: 1,
+	listing: 1
 }
 
 // this does not pretty-print
@@ -312,6 +319,8 @@ function nodes_to_html (tree) {
 			case 'text':
 				if (n.parent != null ? plaintext_elements[n.parent.name] : false) {
 					ret += n.text
+				} else if (n.parent != null ? newline_eating_elements[n.parent.name] && n.text.charAt(0) === "\n" : false) {
+					ret += enc_text("\n" + n.text)
 				} else {
 					ret += enc_text(n.text)
 				}
@@ -2491,6 +2500,8 @@ PeachHTML5Editor.prototype.pretty_html = function(tree, indent, parent_flags) {
 			case 'text':
 				if (n.parent != null ? plaintext_elements[n.parent.name] : false) {
 					ret += n.text
+				} else if (n.parent != null ? newline_eating_elements[n.parent.name] && n.text.charAt(0) === "\n" : false) {
+					ret += enc_text("\n" + n.text)
 				} else {
 					ret += enc_text(n.text)
 				}