Toggle block/line comment don't handle blocks containing multiline comments correctly

[tomasaschan]

• VSCode Version: Code 1.13.0 (376c52b, 2017-06-08T16:43:13.058Z)
• OS Version: Windows_NT ia32 10.0.15063
• Extensions:

Extension	Author	Version
python	donjayamanne	0.6.5
xml	DotJoshJohnson	1.9.0
Ionide-fsharp	Ionide	2.27.2
Go	lukehoban	0.6.62
csharp	ms-vscode	1.10.0
PowerShell	ms-vscode	1.3.2
vscode-docker	PeterJausovec	0.0.16
partial-diff	ryu1kn	0.3.1
vsc-docker	Zim	0.9.0

---

Steps to Reproduce:

1. Create the following css file:

/* foo styles */
.foo {
    color: blue;
}

/* bar styles */
.bar {
    color: green;
}

2. Select all text
3. Use the menu options Toggle Line Comment or Toggle Block Comment from the Edit menu (or with keyboard shortcuts).

Expected behavior: all text in the file is validly commented out

Actual behavior: various kinds of syntax errors.

[alexdima]

The command is currently implemented by adding or removing /* and */ from the selection edges. The actual text to be added/removed is configured via language configuration.

The command is currently language agnostic and does not analyse the contents of the selection to look for other block comments.

[joshunger]

As a comparison this is WebStorm behavior -

/*!* foo styles *!*/
/*.foo {*/
    /*color: blue;*/
/*}*/

/*!* bar styles *!*/
/*.bar {*/
    /*color: green;*/
/*}*/