feat: add support for hotlinks and options

Author: vigoux

corpus/hotlink.txt

@@ -0,0 +1,27 @@
+================================================================================
+Hotlink alone
+================================================================================
+
+|world|
+
+--------------------------------------------------------------------------------
+
+(help_file
+  (line
+    (hotlink
+      (word))))
+
+================================================================================
+Hotlink in text
+================================================================================
+
+Hello |world| hello
+
+--------------------------------------------------------------------------------
+
+(help_file
+  (line
+    (word)
+    (hotlink
+      (word))
+    (word)))

corpus/option.txt

@@ -0,0 +1,27 @@
+================================================================================
+Option alone
+================================================================================
+
+'hello'
+
+--------------------------------------------------------------------------------
+
+(help_file
+  (line
+    (option
+      (word))))
+
+================================================================================
+Option in text
+================================================================================
+
+world 'hello' world
+
+--------------------------------------------------------------------------------
+
+(help_file
+  (line
+    (word)
+    (option
+      (word))
+    (word)))

grammar.js

@@ -18,7 +18,7 @@ module.exports = grammar({
       ),
     line: ($) => prec.right(seq(repeat1($._atom), optional('\n'))),
 
-    _atom: ($) => choice($.word, $.tag, $.code_block),
+    _atom: ($) => choice($.word, $.tag, $.code_block, $.tag, $.option, $.hotlink),
 
     uppercase_name: ($) => repeat1(/[A-Z]+/),
     column_name: ($) => repeat1($.word),

src/grammar.json

@@ -113,6 +113,18 @@
         {
           "type": "SYMBOL",
           "name": "code_block"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "tag"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "option"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "hotlink"
         }
       ]
     },

src/node-types.json

@@ -86,6 +86,22 @@
       ]
     }
   },
+  {
+    "type": "hotlink",
+    "named": true,
+    "fields": {
+      "destination": {
+        "multiple": false,
+        "required": true,
+        "types": [
+          {
+            "type": "word",
+            "named": true
+          }
+        ]
+      }
+    }
+  },
   {
     "type": "line",
     "named": true,
@@ -98,6 +114,14 @@
           "type": "code_block",
           "named": true
         },
+        {
+          "type": "hotlink",
+          "named": true
+        },
+        {
+          "type": "option",
+          "named": true
+        },
         {
           "type": "tag",
           "named": true
@@ -109,6 +133,22 @@
       ]
     }
   },
+  {
+    "type": "option",
+    "named": true,
+    "fields": {
+      "name": {
+        "multiple": false,
+        "required": true,
+        "types": [
+          {
+            "type": "word",
+            "named": true
+          }
+        ]
+      }
+    }
+  },
   {
     "type": "tag",
     "named": true,