Restore extensions in core (#114921)

* bring back grammar extensions

* fix hygiene

* Revert "pull themes from the marketplace"

This reverts commit 0738f76dac.

extensions/powershell/.vscodeignore

@@ -0,0 +1,2 @@
+test/**
+cgmanifest.json

extensions/powershell/cgmanifest.json

@@ -0,0 +1,17 @@
+{
+	"registrations": [
+		{
+			"component": {
+				"type": "git",
+				"git": {
+					"name": "PowerShell/EditorSyntax",
+					"repositoryUrl": "https://github.com/PowerShell/EditorSyntax",
+					"commitHash": "d10ae29c0d3ceb248172c383a159ae43b9ccfb4d"
+				}
+			},
+			"license": "MIT",
+			"version": "1.0.0"
+		}
+	],
+	"version": 1
+}

extensions/powershell/language-configuration.json

@@ -0,0 +1,34 @@
+{
+	"comments": {
+		"lineComment": "#",
+		"blockComment": [ "<#", "#>" ]
+	},
+	"brackets": [
+		["{", "}"],
+		["[", "]"],
+		["(", ")"]
+	],
+	"autoClosingPairs": [
+		["{", "}"],
+		["[", "]"],
+		["(", ")"],
+		{ "open": "@'", "close": "\n'@", "notIn": ["string", "comment"]},
+		{ "open": "@\"", "close": "\n\"@", "notIn": ["string", "comment"]},
+		{ "open": "\"", "close": "\"", "notIn": ["string"]},
+		{ "open": "'", "close": "'", "notIn": ["string", "comment"]},
+		["<#", "#>"]
+	],
+	"surroundingPairs": [
+		["{", "}"],
+		["[", "]"],
+		["(", ")"],
+		["\"", "\""],
+		["'", "'"]
+	],
+	"folding": {
+		"markers": {
+			"start": "^\\s*#[rR]egion\\b",
+			"end": "^\\s*#[eE]nd[rR]egion\\b"
+		}
+	}
+}

extensions/powershell/package.json

@@ -0,0 +1,30 @@
+{
+	"name": "powershell",
+	"displayName": "%displayName%",
+	"description": "%description%",
+	"version": "1.0.0",
+	"publisher": "vscode",
+	"license": "MIT",
+	"engines": { "vscode": "*" },
+	"contributes": {
+		"languages": [{
+			"id": "powershell",
+			"extensions": [ ".ps1", ".psm1", ".psd1", ".pssc", ".psrc" ],
+			"aliases": [ "PowerShell", "powershell", "ps", "ps1" ],
+			"firstLine": "^#!\\s*/.*\\bpwsh\\b",
+			"configuration": "./language-configuration.json"
+		}],
+		"grammars": [{
+			"language": "powershell",
+			"scopeName": "source.powershell",
+			"path": "./syntaxes/powershell.tmLanguage.json"
+		}],
+		"snippets": [{
+			"language": "powershell",
+			"path": "./snippets/powershell.code-snippets"
+		}]
+	},
+	"scripts": {
+		"update-grammar": "node ../../build/npm/update-grammar.js PowerShell/EditorSyntax PowerShellSyntax.tmLanguage ./syntaxes/powershell.tmLanguage.json"
+	}
+}

extensions/powershell/package.nls.json

@@ -0,0 +1,4 @@
+{
+	"displayName": "Powershell Language Basics",
+	"description": "Provides snippets, syntax highlighting, bracket matching and folding in Powershell files."
+}

extensions/powershell/snippets/powershell.code-snippets

@@ -0,0 +1,16 @@
+{
+	"Region Start": {
+		"prefix": "#region",
+		"body": [
+			"#region $0"
+		],
+		"description": "Folding Region Start"
+	},
+	"Region End": {
+		"prefix": "#endregion",
+		"body": [
+			"#endregion"
+		],
+		"description": "Folding Region End"
+	}
+}