Play well with diff tools

[Frederico Caldeira Knabben]

When opening content produced with the editor and simply saving it without changes, we should guarantee that the output data looks just like the input. Even changes in the text must touch only the changed point, not the rest of the document.

Another requirement is making it work even when opening the same content in different browsers.

Today, some things must be ensured for that:

• Attributes order must not change. One solution for that would be ordering the attributes alphabetically (see #249).

• Style attributes must have the same format. Style properties must be lowercased, spaces after ":" must be removed as well as the trailing semicolon (see #1709).

• Whitespaces must be minimized and outputted by the output formatter only.

[Frederico Caldeira Knabben]

#1889 has been marked as DUP. It also proposes a simple fix for the attribute ordering issue.

[Ioannis Cherouvim]

Hello

Any plans for this one? Mainly #249 which is making diffs huge. This was planned for milestone 2.7 but 2.7 is out of the game now.

thanks Ioannis

[Alfonso Martínez de Lizarrondo]

#2533 has been marked as dup

[Alfonso Martínez de Lizarrondo]

#2590 has been marked as dup

[Artur Formella]

Similar bug: #2788

[Artur Formella]

#2929 has been marked as DUP.

[Artur Formella]

#3547 has been marked as DUP.

[Garry Yao]

Seems works well in v3.

[Artur Formella]

Yes. It seems work in v3.

[Frederico Caldeira Knabben]

Yes, this is supposed to be a V3 feature.