Allow \n to trigger a softwrap

[rfon6ngy]

ref: #231118 (2024) + #89120 (2020)

Goal

This PR add soft-wrapping on literal \n in addition to viewport and column based limitation when editor.wrapOnEscapedLineFeeds is enabled.

So this JSON declaration

would be shown as

previous failed attempts:

There are currently no extension API that would allow a language-specific extension to hint the editor into soft-wrapping at specific offset. So I create a test extension that would inject `
` and `\n` in the editor view (using `InlayHints` and `createTextEditorDecorationType`) but none of them worked and were rendered inline

So the only way was to add the wrapping detection in the createLineBreaks method of the MonospaceLineBreaksComputerFactory

[rfon6ngy]

I'm open to discussions about:

• hide this behavior behind a possible wordWrapOnLiteral boolean EditorOption
• Providing a wrapping API for VSCode extension instead (would allow a language-specific decision) =>this is way above my skills

[GhislainC]

Looks good to me

[paul-ay]

Ok for me

[Amaury2T]

Looks amazing to me !

[alexdima]

Nice idea! Could you please implement this behind a setting, maybe something like editor.wrapOnEscapedLineFeeds or maybe you have a better idea for a name.

[rfon6ngy]

Hi @alexdima sorry for the delay. I'm on holiday today so yeah I've hidden the feature behind a editor.wrapOnEscapedLineFeeds flag.

See for yourself: default config

with editor.wrapOnEscapedLineFeeds set to true

[rfon6ngy]

@microsoft-github-policy-service agree

[rfon6ngy]

@alexdima do you need anything else ?

[rfon6ngy]

Seems like I'm not the first one with this idea...
Ref #89120

[alexdima]

Thank you and apologies for the slow turn-around time!