WIP: Indent mode

[dmytrokyrychuk]

Issue #120

[dmytrokyrychuk]

This makes it possible to make leading starts in headers invisible by adding the following vscode settings:

    "editor.tokenColorCustomizations": {
        "textMateRules": [
            {
                "scope": "entity.name.type.org.leading",
                "settings": {
                    "foreground": "#00000000"
                }
            },
            {
                "scope": "entity.name.function.org.leading",
                "settings": {
                    "foreground": "#00000000"
                }
            },
            {
                "scope": "entity.other.attribute-name.org.leading",
                "settings": {
                    "foreground": "#00000000"
                }
            },
        ]
    }

I am not sure if there is a cleaner way to achieve this.

I am not sure how to handle the indentation yet.

[rbenson]

I see you wrote a scope, which I assume applies if there's 2+ asterisks at the start of a line, so *** would mark it .leading .leading .headline if reviewing with TM Scopes. If so, add a new setting called cleanView, if true, can't you say .leading == editor.background?

[dmytrokyrychuk]

I don't know if there is a clean way to implement this. There is no one editor.background color we could use because there could be a picture on the background, and probably gradient too. We want .leading foreground color to be transparent. It looks like there is no easy way to achieve that without support from themes (theme authors must know to include leading.foreground: #00000000 for org language). Alternative is to patch editor.tokenColorCustomizations array at runtime, which will be difficult to do reliably.