3 files changed, 171 insertions, 0 deletions
diff --git a/pu2/i2-syntax/language-configuration.json b/pu2/i2-syntax/language-configuration.json
new file mode 100644
index 0000000..2cbf13c
--- /dev/null
+++ b/pu2/i2-syntax/language-configuration.json
@@ -0,0 +1,30 @@
+{
+  "comments": {
+    "lineComment": "//"
+  },
+  "brackets": [
+    ["{", "}"],
+    ["[", "]"],
+    ["(", ")"]
+  ],
+  "autoClosingPairs": [
+    { "open": "{", "close": "}" },
+    { "open": "[", "close": "]" },
+    { "open": "(", "close": ")" },
+    { "open": "\"", "close": "\"", "notIn": ["string"] },
+    { "open": "'", "close": "'", "notIn": ["string"] }
+  ],
+  "surroundingPairs": [
+    { "open": "{", "close": "}" },
+    { "open": "[", "close": "]" },
+    { "open": "(", "close": ")" },
+    { "open": "\"", "close": "\"" },
+    { "open": "'", "close": "'" }
+  ],
+  "folding": {
+    "markers": {
+      "start": "^\\s*\\{",
+      "end": "^\\s*\\}"
+    }
+  }
+}
diff --git a/pu2/i2-syntax/package.json b/pu2/i2-syntax/package.json
new file mode 100644
index 0000000..1810074
--- /dev/null
+++ b/pu2/i2-syntax/package.json
@@ -0,0 +1,35 @@
+{
+  "name": "i2-asm-syntax",
+  "displayName": "I2 Assembly (i2)",
+  "version": "0.0.1",
+  "publisher": "moonflower",
+  "engines": {
+    "vscode": "^1.50.0"
+  },
+  "categories": [
+    "Programming Languages"
+  ],
+  "contributes": {
+    "languages": [
+      {
+        "id": "i2",
+        "aliases": ["i2", "I2", "i2-asm"],
+        "extensions": [".i2"],
+        "configuration": "./language-configuration.json"
+      }
+    ],
+    "grammars": [
+      {
+        "language": "i2",
+        "scopeName": "source.i2",
+        "path": "./syntaxes/i2.tmLanguage.json"
+      }
+    ],
+    "tokenColors": [
+      {
+        "scope": "constant.other.macro-reference.i2",
+        "settings": { "foreground": "#FF8C00" }
+      }
+    ]
+  }
+}
diff --git a/pu2/i2-syntax/syntaxes/i2.tmLanguage.json b/pu2/i2-syntax/syntaxes/i2.tmLanguage.json
new file mode 100644
index 0000000..d740a7d
--- /dev/null
+++ b/pu2/i2-syntax/syntaxes/i2.tmLanguage.json
@@ -0,0 +1,106 @@
+{
+  "scopeName": "source.i2",
+  "name": "I2 IR / Macro language",
+  "fileTypes": ["i2"],
+  "patterns": [
+    { "include": "#comments" },
+    { "include": "#macro-reference" },
+    { "include": "#braces" },
+    { "include": "#brackets" },
+    { "include": "#semicolon" },
+    { "include": "#keywords" },
+    { "include": "#function-call" },
+    { "include": "#memory-index" },
+    { "include": "#variables" },
+    { "include": "#hex" },
+    { "include": "#decimal" },
+    { "include": "#char" },
+    { "include": "#blob" },
+    {
+      "begin": "\\b(macro)\\b\\s+([A-Za-z_][A-Za-z0-9_]*)\\s*(?=\\()",
+      "beginCaptures": {
+        "1": { "name": "keyword.control.macro.i2" },
+        "2": { "name": "entity.name.function.macro.i2" }
+      },
+      "end": "\\}",
+      "name": "meta.macro.definition.i2",
+      "patterns": [
+        { "include": "#comments" },
+        { "include": "#macro-reference" },
+        { "include": "#braces" },
+        { "include": "#semicolon" },
+        { "include": "#keywords" },
+        { "include": "#function-call" },
+        { "include": "#memory-index" },
+        { "include": "#variables" },
+        { "include": "#hex" },
+        { "include": "#decimal" },
+        { "include": "#char" },
+        { "include": "#blob" }
+      ]
+    }
+  ],
+  "repository": {
+    "comments": {
+      "name": "comment.line.double-slash.i2",
+      "match": "//.*$"
+    },
+    "braces": {
+      "name": "punctuation.section.block.i2",
+      "match": "[\\{\\}]"
+    },
+    "brackets": {
+      "name": "punctuation.brackets.square.i2",
+      "match": "[\\[\\]]"
+    },
+    "semicolon": {
+      "name": "punctuation.separator.semicolon.i2",
+      "match": ";"
+    },
+    "keywords": {
+      "name": "keyword.control.i2",
+      "match": "\\b(?:macro|system|exit)\\b"
+    },
+    "function-call": {
+      "name": "entity.name.function.i2",
+      "match": "\\b[a-zA-Z_][a-zA-Z0-9_]*\\s*(?=\\()"
+    },
+    "variables": {
+      "name": "variable.other.i2",
+      "match": "\\b[a-zA-Z_][a-zA-Z0-9_]*\\b"
+    },
+    "memory-index": {
+      "name": "variable.parameter.memory-index.i2",
+      "match": "@\\s*\\d+"
+    },
+    "macro-reference": {
+      "name": "constant.other.macro-reference.i2",
+      "match": "/[^/\\r\\n]+/"
+    },
+    "hex": {
+      "name": "constant.numeric.hex.i2",
+      "match": "\\b0x[0-9A-Fa-f]+\\b"
+    },
+    "decimal": {
+      "name": "constant.numeric.decimal.i2",
+      "match": "\\b\\d+\\b"
+    },
+    "char": {
+      "name": "string.quoted.single.char.i2",
+      "match": "'(\\\\.|[^'\\\\])'"
+    },
+    "blob": {
+      "begin": "\\[",
+      "end": "\\]",
+      "name": "meta.bracket.blob.i2",
+      "patterns": [
+        { "include": "#char" },
+        { "include": "#decimal" },
+        {
+          "name": "punctuation.separator.comma.i2",
+          "match": ","
+        }
+      ]
+    }
+  }
+}
+\ No newline at end of file