add => and =>? support

grammar.js

@@ -2,7 +2,7 @@ module.exports = grammar({
   name: 'spl',
 
   rules: {
-    source_file: $ => repeat($._statement),
+    source_file: $ => seq(repeat($._statement), optional($._unspaced_statement)),
     _unspaced_statement: $ => seq(
       choice(
         $.string,
@@ -33,7 +33,7 @@ module.exports = grammar({
     function_definition: $ => choice($.func, $.block),
     func: $ => seq(
       'func', $._spacing,
-      $.identifier, $._spacing, choice(seq('@', $.identifier, '!', $.blocky), $.block),
+      $.identifier, $._spacing, choice(seq('@', $.identifier, $._spacing, '!', $.blocky), $.block),
     ),
     blocky: $ => seq('{', repeat(choice($.blocky, /./)), '}'),
     block: $ => seq(
@@ -41,7 +41,7 @@ module.exports = grammar({
         repeat($._statement), 
       '}',
     ),
-    identifier: $ => /[^ \n\r\t<>:;&{}"']+/,
+    identifier: $ => /[^ \n\r\t<>:;&{}"'\[\]]+/,
     call: $ => seq(
       choice(
         seq(
@@ -49,6 +49,7 @@ module.exports = grammar({
           ':',
           $.identifier,
         ),
+        $.operation,
         $.identifier,
       ),
     ),
@@ -60,8 +61,8 @@ module.exports = grammar({
       repeat($.identifier),
       ';',
     ),
-    array: $ => seq('[', $._spacing, repeat($._statement), ']'),
+    array: $ => seq('[', $._spacing, optional(repeat($._statement)), ']'),
-    operation: $ => /[+\-*\/%&]/,
+    operation: $ => choice(/[+\-*\/%&]/, "=>", "=>?"),
     variable: $ => choice(
       seq('def', $._spacing, $.identifier),
       seq('=', $.identifier),
@@ -96,6 +97,7 @@ module.exports = grammar({
     ),
     catch: $ => seq(
       'catch', $._spacing,
+      optional(repeat(seq($.identifier, $._spacing))),
       '{', $._spacing,
       repeat($._statement),
       '}', $._spacing,

package.json

@@ -35,16 +35,6 @@
     "tree-sitter-cli": "^0.20.8",
     "prebuildify": "^6.0.0"
   },
-  "tree-sitter": [
-    {
-      "scope": "source.spl",
-      "injection-regex": "spl",
-      "file-types": [
-        "spl",
-        "sbl"
-      ]
-    }
-  ],
   "files": [
     "grammar.js",
     "binding.gyp",

src/grammar.json

@@ -1,4 +1,5 @@
 {
+  "$schema": "https://tree-sitter.github.io/tree-sitter/assets/schemas/grammar.schema.json",
   "name": "spl",
   "rules": {
     "source_file": {
@@ -295,6 +296,10 @@
                 }
               ]
             },
+            {
+              "type": "SYMBOL",
+              "name": "operation"
+            },
             {
               "type": "SYMBOL",
               "name": "identifier"
@@ -421,8 +426,17 @@
       ]
     },
     "operation": {
-      "type": "PATTERN",
+      "type": "CHOICE",
-      "value": "[+\\-*\\/%&]"
+      "members": [
+        {
+          "type": "PATTERN",
+          "value": "[+\\-*\\/%&]"
+        },
+        {
+          "type": "STRING",
+          "value": "=>"
+        }
+      ]
     },
     "variable": {
       "type": "CHOICE",
@@ -668,6 +682,30 @@
           "type": "SYMBOL",
           "name": "_spacing"
         },
+        {
+          "type": "CHOICE",
+          "members": [
+            {
+              "type": "REPEAT",
+              "content": {
+                "type": "SEQ",
+                "members": [
+                  {
+                    "type": "SYMBOL",
+                    "name": "identifier"
+                  },
+                  {
+                    "type": "SYMBOL",
+                    "name": "_spacing"
+                  }
+                ]
+              }
+            },
+            {
+              "type": "BLANK"
+            }
+          ]
+        },
         {
           "type": "STRING",
           "value": "{"

src/node-types.json

@@ -163,6 +163,10 @@
         {
           "type": "identifier",
           "named": true
+        },
+        {
+          "type": "operation",
+          "named": true
         }
       ]
     }
@@ -266,6 +270,10 @@
           "type": "function_definition",
           "named": true
         },
+        {
+          "type": "identifier",
+          "named": true
+        },
         {
           "type": "if",
           "named": true
@@ -440,9 +448,15 @@
       ]
     }
   },
+  {
+    "type": "operation",
+    "named": true,
+    "fields": {}
+  },
   {
     "type": "source_file",
     "named": true,
+    "root": true,
     "fields": {},
     "children": {
       "multiple": true,
@@ -657,7 +671,7 @@
     "named": false
   },
   {
-    "type": "=",
+    "type": "=>",
     "named": false
   },
   {

src/tree_sitter/parser.h

@@ -47,6 +47,7 @@ struct TSLexer {
   uint32_t (*get_column)(TSLexer *);
   bool (*is_at_included_range_start)(const TSLexer *);
   bool (*eof)(const TSLexer *);
+  void (*log)(const TSLexer *, const char *, ...);
 };
 
 typedef enum {