Add quoted argument

corpus/quoted_argument.txt

@@ -0,0 +1,49 @@
+=========================
+One empty quoted argument
+=========================
+
+message("")
+
+---
+(source_file
+  (command_invocation
+    (identifier)
+    (arguments
+     (argument (quoted_argument))
+    )
+  )
+)
+
+===================
+One quoted argument
+===================
+
+message("An argument")
+
+---
+(source_file
+  (command_invocation
+    (identifier)
+    (arguments
+     (argument (quoted_argument))
+    )
+  )
+)
+
+====================
+Two quoted arguments
+====================
+
+message("First argument" "Second argument")
+
+---
+(source_file
+  (command_invocation
+    (identifier)
+    (arguments
+     (argument (quoted_argument))
+     (seperation (space))
+     (argument (quoted_argument))
+    )
+  )
+)

grammar.js

@@ -22,6 +22,7 @@ module.exports = grammar({
 
     argument: $ => choice(
       $.bracket_argument,
+      $.quoted_argument,
       $.unquoted_argument,
     ),
 
@@ -35,6 +36,13 @@ module.exports = grammar({
     _bracket_content: $ => repeat1(/[^\]]/),
     _bracket_close: $ => seq(']', repeat('='), ']'),
 
+    quoted_argument: $ => seq('"', repeat($._quoted_element), '"'),
+    _quoted_element: $ => choice(
+      /[^\\"]/,
+      $.escape_sequence,
+      seq('\\', $.newline),
+    ),
+
     unquoted_argument: $ => repeat1(
       choice(
         /[^ ()#\"\\]/,

src/grammar.json

@@ -86,6 +86,10 @@
           "type": "SYMBOL",
           "name": "bracket_argument"
         },
+        {
+          "type": "SYMBOL",
+          "name": "quoted_argument"
+        },
         {
           "type": "SYMBOL",
           "name": "unquoted_argument"
@@ -164,6 +168,52 @@
         }
       ]
     },
+    "quoted_argument": {
+      "type": "SEQ",
+      "members": [
+        {
+          "type": "STRING",
+          "value": "\""
+        },
+        {
+          "type": "REPEAT",
+          "content": {
+            "type": "SYMBOL",
+            "name": "_quoted_element"
+          }
+        },
+        {
+          "type": "STRING",
+          "value": "\""
+        }
+      ]
+    },
+    "_quoted_element": {
+      "type": "CHOICE",
+      "members": [
+        {
+          "type": "PATTERN",
+          "value": "[^\\\\\"]"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "escape_sequence"
+        },
+        {
+          "type": "SEQ",
+          "members": [
+            {
+              "type": "STRING",
+              "value": "\\"
+            },
+            {
+              "type": "SYMBOL",
+              "name": "newline"
+            }
+          ]
+        }
+      ]
+    },
     "unquoted_argument": {
       "type": "REPEAT1",
       "content": {

src/node-types.json

@@ -11,6 +11,10 @@
           "type": "bracket_argument",
           "named": true
         },
+        {
+          "type": "quoted_argument",
+          "named": true
+        },
         {
           "type": "unquoted_argument",
           "named": true
@@ -89,6 +93,25 @@
       ]
     }
   },
+  {
+    "type": "quoted_argument",
+    "named": true,
+    "fields": {},
+    "children": {
+      "multiple": true,
+      "required": false,
+      "types": [
+        {
+          "type": "escape_sequence",
+          "named": true
+        },
+        {
+          "type": "newline",
+          "named": true
+        }
+      ]
+    }
+  },
   {
     "type": "seperation",
     "named": true,
@@ -138,6 +161,10 @@
       ]
     }
   },
+  {
+    "type": "\"",
+    "named": false
+  },
   {
     "type": "(",
     "named": false
@@ -154,6 +181,10 @@
     "type": "[",
     "named": false
   },
+  {
+    "type": "\\",
+    "named": false
+  },
   {
     "type": "\\n",
     "named": false