first try at squiggle syntax highlighting

packages/vscode-ext/.gitignore

@@ -1,3 +1,4 @@
 /media/vendor
 /out
 /*.vsix
+/syntaxes/*.json

packages/vscode-ext/package.json

@@ -3,7 +3,7 @@
   "displayName": "Squiggle",
   "description": "Squiggle language support",
   "license": "MIT",
-  "version": "0.0.4",
+  "version": "0.1.0",
   "publisher": "QURI",
   "repository": {
     "type": "git",
@@ -34,6 +34,13 @@
         ]
       }
     ],
+    "grammars": [
+      {
+        "language": "squiggle",
+        "scopeName": "source.squiggle",
+        "path": "./syntaxes/squiggle.tmLanguage.json"
+      }
+    ],
     "customEditors": [
       {
         "viewType": "squiggle.wysiwyg",
@@ -102,21 +109,23 @@
   "scripts": {
     "vscode:prepublish": "yarn run compile",
     "compile:tsc": "tsc -p ./",
+    "compile:grammar": "js-yaml syntaxes/squiggle.tmLanguage.yaml >syntaxes/squiggle.tmLanguage.json",
     "compile:vendor": "(cd ../squiggle-lang && yarn run build) && (cd ../components && yarn run bundle && yarn run build:css) && mkdir -p media/vendor && cp ../components/dist/bundle.js media/vendor/components.js && cp ../components/dist/main.css media/vendor/components.css && cp ../../node_modules/react/umd/react.production.min.js media/vendor/react.js && cp ../../node_modules/react-dom/umd/react-dom.production.min.js media/vendor/react-dom.js && cp ../website/static/img/quri-logo.png media/vendor/icon.png",
-    "compile": "yarn run compile:tsc && yarn run compile:vendor",
+    "compile": "yarn run compile:tsc && yarn run compile:grammar && yarn run compile:vendor",
     "watch": "tsc -watch -p ./",
     "pretest": "yarn run compile && yarn run lint",
     "lint": "eslint src --ext ts",
     "format": "eslint src --ext ts --fix"
   },
   "devDependencies": {
-    "@types/vscode": "^1.68.0",
     "@types/glob": "^7.2.0",
     "@types/node": "18.x",
+    "@types/vscode": "^1.68.0",
     "@typescript-eslint/eslint-plugin": "^5.27.0",
     "@typescript-eslint/parser": "^5.27.0",
     "eslint": "^8.18.0",
     "glob": "^8.0.3",
-    "typescript": "^4.7.4"
+    "typescript": "^4.7.4",
+    "js-yaml": "^4.1.0"
   }
 }

packages/vscode-ext/syntaxes/squiggle.tmLanguage.yaml

@@ -0,0 +1,89 @@
+scopeName: source.squiggle
+patterns:
+  - include: "#statement"
+  - include: "#expression"
+  - include: "#comment-block"
+  - include: "#comment-line"
+repository:
+  statement:
+    patterns:
+      - include: "#let"
+      - include: "#defun"
+  expression:
+    patterns:
+      - include: "#integer"
+      - include: "#float"
+      - include: "#string"
+      - include: "#block"
+      - include: "#function-call"
+  let:
+    match: ^\s*(\w+)\s*=
+    captures:
+      "1":
+        name: variable.other.squiggle
+  defun:
+    begin: ^\s*(\w+)\s*(\()
+    end: (\))\s*=
+    beginCaptures:
+      "1":
+        name: entity.name.function.squiggle
+      "2":
+        name: punctuation.definition.arguments.begin.squiggle
+    endCaptures:
+      "1":
+        name: punctuation.definition.arguments.end.squiggle
+    patterns:
+      - include: "#array-parameters"
+  array-parameters:
+    begin: \b([\$_a-z]+[\$_a-zA-Z0-9]*)
+    end: \s*(?:(,)|(?=\)))
+    beginCaptures:
+      "1":
+        name: variable.parameter.function.squiggle
+  function-call:
+    begin: (\w+)\s*(\()
+    end: (\))
+    beginCaptures:
+      "1":
+        name: entity.name.function.squiggle
+      "2":
+        name: punctuation.definition.arguments.begin.squiggle
+    endCaptures:
+      "1":
+        name: punctuation.definition.arguments.end.squiggle
+    patterns:
+      - include: "$self"
+  comment-block:
+    begin: /\*
+    end: \*/
+    name: comment.block.squiggle
+  comment-line:
+    patterns:
+      - include: "#comment-line-double-slash"
+      - include: "#comment-line-number-sign"
+  comment-line-double-slash:
+    match: //.*
+    name: comment.line.double-slash.squiggle
+  comment-line-number-sign:
+    match: "#.*"
+    name: comment.line.number-sign.squiggle
+  block:
+    begin: "{"
+    end: "}"
+    beginCaptures:
+      "0":
+        name: punctuation.definition.block.squiggle
+    endCaptures:
+      "0":
+        name: punctuation.definition.block.squiggle
+    patterns:
+      - include: "$self"
+  integer:
+    match: \b\d+([_a-zA-Z]+[_a-zA-Z0-9]*)?
+    name: constant.numeric.integer.squiggle
+  float:
+    match: \b(\d+\.\d*|\.?\d+)([eE]-?\d+)?([_a-zA-Z]+[_a-zA-Z0-9]*)?
+    name: constant.numeric.float.squiggle
+  string:
+    match: \".*?\"
+    name: string.quoted.double.squiggle

yarn.lock

@@ -4353,6 +4353,15 @@
     "@types/scheduler" "*"
     csstype "^3.0.2"
 
+"@types/react@^18.0.9":
+  version "18.0.14"
+  resolved "https://registry.yarnpkg.com/@types/react/-/react-18.0.14.tgz#e016616ffff51dba01b04945610fe3671fdbe06d"
+  integrity sha512-x4gGuASSiWmo0xjDLpm5mPb52syZHJx02VKbqUKdLmKtAwIh63XClGsiTI1K6DO5q7ox4xAsQrU+Gl3+gGXF9Q==
+  dependencies:
+    "@types/prop-types" "*"
+    "@types/scheduler" "*"
+    csstype "^3.0.2"
+
 "@types/resolve@1.17.1":
   version "1.17.1"
   resolved "https://registry.yarnpkg.com/@types/resolve/-/resolve-1.17.1.tgz#3afd6ad8967c77e4376c598a82ddd58f46ec45d6"