support format g4 (#232)

* chore: install antlr-format-cli to format g4 files

* style: format all g4 files

* chore: apply antlr-format to lint-staged

Author: HaydenOrz

.lintstagedrc.js

@@ -1,4 +1,5 @@
 module.exports = {
     '*.js': [`prettier --write`],
     '*.ts': [`prettier --write`],
+    '*.g4': [`antlr-format -c ./antlr.format.json -v`],
 };

antlr.format.json

@@ -0,0 +1,34 @@
+{
+    "main": {
+        "alignTrailingComments": true,
+        "columnLimit": 150,
+        "minEmptyLines": 1,
+        "maxEmptyLinesToKeep": 1,
+        "reflowComments": false,
+        "useTab": false,
+        "allowShortRulesOnASingleLine": false,
+        "allowShortBlocksOnASingleLine": true,
+        "alignSemicolons": "hanging",
+        "alignColons": "hanging",
+        "spaceBeforeAssignmentOperators": false,
+        "keepEmptyLinesAtTheStartOfBlocks": true
+    },
+    "lexer": {
+        "alignTrailingComments": true,
+        "columnLimit": 150,
+        "maxEmptyLinesToKeep": 1,
+        "reflowComments": false,
+        "useTab": false,
+        "allowShortRulesOnASingleLine": true,
+        "allowShortBlocksOnASingleLine": true,
+        "minEmptyLines": 0,
+        "alignSemicolons": "none",
+        "alignColons": "trailing",
+        "singleLineOverrulesHangingColon": true,
+        "alignLexerCommands": true,
+        "alignLabels": true,
+        "alignTrailers": true,
+        "spaceBeforeAssignmentOperators": false,
+        "groupedAlignments": true
+    }
+}

package.json

@@ -28,6 +28,7 @@
     "release": "node ./scripts/release.js",
     "lint": "prettier --check '**/*.ts' --config ./.prettierrc",
     "lint-fix": "prettier --write '**/*.ts' --config ./.prettierrc",
+    "format-g4": "antlr-format -c ./antlr.format.json -v ./src/grammar/**/*.g4",
     "cleanComment": "node ./scripts/cleanCommentCli.js"
   },
   "license": "MIT",
@@ -39,6 +40,7 @@
     "@swc/jest": "^0.2.26",
     "@types/jest": "^29.5.1",
     "@types/node": "^18.15.11",
+    "antlr-format-cli": "^1.2.1",
     "antlr4ts-cli": "^0.5.0-alpha.4",
     "chalk": "4.1.2",
     "commitizen": "^4.3.0",