Add VS Code syntax highlighter

.gitattributes

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+# Set default behavior to automatically normalize line endings.
+* text=auto

.gitignore

@@ -8,3 +8,6 @@ TAGS
 .DS_Store
 examples/_output.txt
 blacklight.exe
+ext
+node_modules
+*.vsix

tools/syntax-vs-code/.vscode/launch.json

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+// A launch configuration that launches the extension inside a new window
+// Use IntelliSense to learn about possible attributes.
+// Hover to view descriptions of existing attributes.
+// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+{
+	"version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Extension",
+            "type": "extensionHost",
+            "request": "launch",
+            "args": [
+                "--extensionDevelopmentPath=${workspaceFolder}"
+            ]
+        }
+    ]
+}

tools/syntax-vs-code/.vscodeignore

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+.vscode/**
+.vscode-test/**
+.gitignore
+vsc-extension-quickstart.md

tools/syntax-vs-code/README.md

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+# blacklight Language Support
+
+Add syntax hilighting for `blacklight`.

tools/syntax-vs-code/language-configuration.json

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+{
+    "comments": {
+        // symbol used for single line comment. Remove this entry if your language does not support line comments
+        "lineComment": ";;",
+    },
+    // symbols used as brackets
+    "brackets": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"]
+    ],
+    // symbols that are auto closed when typing
+    "autoClosingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""],
+        { "open": "'", "close": "'", "notIn": ["string", "comment"] },
+    ],
+    // symbols that can be used to surround a selection
+    "surroundingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""],
+        ["'", "'"]
+    ]
+}

tools/syntax-vs-code/package.json

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+{
+  "name": "blacklight-language-support",
+  "displayName": "blacklight Language Support",
+  "description": "Add syntax highlighting for the blacklight programming language.",
+  "version": "0.0.1",
+  "engines": {
+    "vscode": "^1.87.0"
+  },
+  "categories": [
+    "Programming Languages"
+  ],
+  "contributes": {
+    "languages": [{
+      "id": "bl",
+      "aliases": ["blacklight", "bl"],
+      "extensions": [".bl"],
+      "configuration": "./language-configuration.json"
+    }],
+    "grammars": [{
+      "language": "bl",
+      "scopeName": "source.blacklight",
+      "path": "./syntaxes/bl.tmLanguage.json"
+    }]
+  },
+  "devDependencies": {
+    "generator-code": "^1.8.4",
+    "vsce": "^2.15.0",
+    "yo": "^5.0.0"
+  }
+}

tools/syntax-vs-code/syntaxes/bl.tmLanguage.json

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+{
+	"$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
+	"name": "blacklight",
+	"patterns": [
+		{
+			"include": "#keywords"
+		},
+		{
+			"include": "#strings"
+		},
+		{
+			"include": "#comments"
+		},
+		{
+			"include": "#numerics"
+		},
+		{
+			"include": "#variables"
+		},
+		{
+			"include": "#entities"
+		}
+	],
+	"repository": {
+		"comments": {
+			"patterns": [
+				{
+					"name": "comment.line.semicolons.bl",
+					"begin": ";;",
+					"end": "\\n"
+				}
+			]
+		},
+		"keywords": {
+			"patterns": [
+				{
+					"name": "keyword.control.bl",
+					"match": "\\s?(if|either|while|until|loop)\\s"
+				},
+				{
+					"name": "keyword.operator.bl",
+					"match": "\\s?(eq|or|and|is|not|add|sub|div|mul)\\s"
+				},
+				{
+					"name": "keyword.other",
+					"match": "\\s?(swap|drop|rot|decap|depth|dup|over|purge)\\s"
+				}
+
+			]
+		},
+		"strings": {
+			"name": "string.quoted.single.bl",
+			"begin": "'",
+			"end": "'",
+			"patterns": [
+				{
+					"name": "constant.character.escape.bl",
+					"match": "\\\\."
+				}
+			]
+		},
+		"variables": {
+			"patterns": [
+				{
+					"name": "variable.language.bl",
+					"match": "self|@|\\$|\\^"
+				},
+				{
+					"name": "variable.name.bl",
+					"match": ":[a-zA-Z_]+"
+				},
+				{
+					"name": "entity.name.function.bl",
+					"match": "[a-zA-Z_]+:"
+				}
+			]
+		},
+		"entity": {
+			"patterns": [
+				{
+					"name": "constant.numeric.dec.bl",
+					"match": "([+-]?[0-9]+)"
+				}
+			]
+		},
+		"types": {
+			"patterns": [
+				{
+					"name": "storage.type.other.bl",
+					"match": "[a-zA-Z_]-new"
+				}
+			]
+		}
+	},
+	"scopeName": "source.blacklight",
+	"fileTypes": ["bl"]
+}