Support varying character widths

[fjakobs]

CM2 does it by measuring the actual text and not a generic string.

https://github.com/marijnh/CodeMirror2/blob/master/lib/codemirror.js#L1209
@Gissues:{"order":41.6149068322984,"status":"backlog"}

[fjakobs]

This includes non monospace fonts and asian characters

[sirupsen]

Any updates on this?

[fjakobs]

I have it in an experimental branch. It doesn't support soft wrap yet and has some issues with tab characters but otherwise it works very well already.

https://github.com/ajaxorg/ace/tree/varchar

[sirupsen]

Will it be fixed to one line-height, or is it possible to allow multiple line-heights in the document?

[fjakobs]

variable line height is currently not planned.

[jevakallio]

Are there any plans to continue work on this feature in the (near-ish) future?

[nightwing]

not in next 2-3 months.

[vegetableman]

Thanks @fjakobs , it worked beautifully with different font families.

[bvibber]

This has been biting us at Wikipedia -- we're using ace to do on-site editing of Lua, JavaScript etc which may include localized text in all sorts of languages.

I've updated @fjakobs 's older patch to run on current ace master: #1608

Appears to work for me in some ad-hoc testing.

[bvibber]

For handy testing, here's a (temporary) live copy built from the pull req: https://brionv.com/misc/demo/ace/build/kitchen-sink.html

[FahmiA]

Any progress with this bug?

[georgephillips]

Any news on this feature?

[wohali]

We'd really love to see this merged in; it looks like potentially @Brion or @fjakobs 's branches have workarounds for variable width characters. I also believe #1797, #1153 and #1961 are duplicates of this ticket.

Steps to recreate: paste this text into an ACE editor and cursor around, you'll see the cursor will land in the middle of the double-wide characters such as the roman numerals.

ⅠⅡⅢⅣⅤⅰⅱⅲⅳⅴ
ᠠᠡᠢᠣᠤᠥᠦᠧᠨᠩ
༐༑༒༓༔༕༖༗༘༙
بةتثجحخد

Screenshot:

[honzajavorek]

Hi, what's status of this issue? Can we be of any help?

[nightwing]

@honzajavorek the latest version of somewhat working attempt to fix this issue is in #2002, it's still not ready to merge, and wrapping support may require major changes.