Add text block support (#105)

Author: andirady

grammar.js

@@ -88,6 +88,7 @@ module.exports = grammar({
       $.false,
       $.character_literal,
       $.string_literal,
+      $.text_block,
       $.null_literal
     ),
 
@@ -155,6 +156,10 @@ module.exports = grammar({
       // seq('"', repeat(choice(/[^\\"\n]/, /\\(.|\n)/)), '"', '+', /\n/, '"', repeat(choice(/[^\\"\n]/, /\\(.|\n)/)))
     )),
 
+    text_block: $ => token(choice(
+      seq('"""', /\s*\n/, optional(repeat(choice(/[^\\"]/, /\\(.)/))), '"""'),
+    )),
+
     null_literal: $ => 'null',
 
     // Expressions

src/grammar.json

@@ -52,6 +52,10 @@
           "type": "SYMBOL",
           "name": "string_literal"
         },
+        {
+          "type": "SYMBOL",
+          "name": "text_block"
+        },
         {
           "type": "SYMBOL",
           "name": "null_literal"
@@ -1097,6 +1101,55 @@
         ]
       }
     },
+    "text_block": {
+      "type": "TOKEN",
+      "content": {
+        "type": "CHOICE",
+        "members": [
+          {
+            "type": "SEQ",
+            "members": [
+              {
+                "type": "STRING",
+                "value": "\"\"\""
+              },
+              {
+                "type": "PATTERN",
+                "value": "\\s*\\n"
+              },
+              {
+                "type": "CHOICE",
+                "members": [
+                  {
+                    "type": "REPEAT",
+                    "content": {
+                      "type": "CHOICE",
+                      "members": [
+                        {
+                          "type": "PATTERN",
+                          "value": "[^\\\\\"]"
+                        },
+                        {
+                          "type": "PATTERN",
+                          "value": "\\\\(.)"
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "type": "BLANK"
+                  }
+                ]
+              },
+              {
+                "type": "STRING",
+                "value": "\"\"\""
+              }
+            ]
+          }
+        ]
+      }
+    },
     "null_literal": {
       "type": "STRING",
       "value": "null"

src/node-types.json

@@ -43,6 +43,10 @@
         "type": "string_literal",
         "named": true
       },
+      {
+        "type": "text_block",
+        "named": true
+      },
       {
         "type": "true",
         "named": true
@@ -4088,6 +4092,10 @@
     "type": "synchronized",
     "named": false
   },
+  {
+    "type": "text_block",
+    "named": true
+  },
   {
     "type": "this",
     "named": true