Allow Liquid to replace   characters

[StephenBrownski]

There seems to be inconsistencies in how liquid the replace filter handles the   entity. It cannot replace a   that was in the string originally, but it can replace  s that were added via liquid.

Example:

Page with a   somewhere in the body content, with normal spaces everywhere else.

{{ page.content | replace: ' ', ' ' | replace: ' ', ' ' }} will convert all normal spaces to non-breaking spaces, and then all the new nbsps will be converted back to regular spaces. The nbsp present in the page content from the beginning will not be converted back.

A video example:
https://screenshot.click/02-39-ecwkn-j9v56.mp4

Though the above example is obviously an intentional edge case, it could definitely be very useful in cases where a user has imported a large amount of content from elsewhere. Especially since in the rte code view, you cannot distinguish between a regular space and a  . This would be useful in making sure content is consistently output.

[pushrax]

Liquid doesn't know anything about HTML entities itself. Somewhere along the line (maybe before saving to the database),   is being converted to a UTF-8 "NO-BREAK SPACE" character, \u00A0.

Liquid does not support escaped characters in string literals, so you will need to use something that looks like {{ page.content | replace: ' ', ' ' }} where the first space is a real UTF-8 0xA0 character and the second one is a UTF-8 0x20. Note that copy/pasting from this page won't work due to something about GitHub's comment system, you'll need to generate it yourself. Here's a Ruby string you can use: puts "{{ page.content | replace: '\u00A0', ' ' }}"