[css-text] spaces before break in 'pre-wrap' text should allow combination of hanging and collapsing #277
Description
4.1.3. Phase II: Trimming and Positioning in css-text-3 says:
If spaces or tabs at the end of a line are non-collapsible but have white-space set to pre-wrap the UA must either hang the white space or visually collapse their character advance widths such that they don’t take up space in the line.
Based on the discussion in Mozilla Bug 1008019 - When a space overflows the width of a div, the previous word wraps as if it's attached to the div, with white-space: pre-wrap;, particularly starting at comment 34, it is my understanding that:
- Chromium uses a combination of the two behaviors
- in that bug, we're likely to change Gecko to do the same
It seems like the spec should allow the combination of the behaviors (i.e., collapsing only the part that would extend past the end of the line).