feat: introduce overflow in summary

Ref: #46

corpus/body.txt

@@ -191,3 +191,19 @@ BREAKING-CHANGE: also valid
     (breaking_change
       (token)
       (value))))
+
+================================================================================
+Overflowed summary
+================================================================================
+This is a simple subject
+
+This is a simple body 
+This is a simple body with so muche characters that it will overflow the summary limit
+This is a simple body 
+--------------------------------------------------------------------------------
+
+(source
+  (subject)
+  (message
+    (overflow)))
+

grammar.js

@@ -2,6 +2,7 @@ const NEWLINE = /\r?\n/;
 const ANYTHING = /[^\n\r]+/;
 const SUBJECT = /[^\n\r]{1,49}/;
 const NOT_A_COMMENT = /[^#]/;
+const SUMMARY = /[^\n\r]{1,72}/;
 const SCISSORS = /# -+ >8 -+\r?\n/;
 const BRANCH_NAME = /[^\s'”»"“]+/;
 const COMMIT = /[0-9a-f]{7,40}/;
@@ -55,7 +56,8 @@ module.exports = grammar({
     _body_line: ($) =>
       choice($._message, $.breaking_change, $.trailer, $.comment, NEWLINE),
 
-    _message: () => seq(NOT_A_COMMENT, optional(ANYTHING)),
+    _message: ($) =>
+      seq(seq(NOT_A_COMMENT, SUMMARY), optional(alias(ANYTHING, $.overflow))),
 
     trailer: ($) =>
       seq(alias(TRAILER_TOKEN, $.token), alias(TRAILER_VALUE, $.value)),

queries/highlights.scm

@@ -1,34 +1,52 @@
 (comment) @comment
+
 (generated_comment) @comment
-(title) @text.title
-(text) @text
-(branch) @text.reference
+
+(title) @markup.heading
+
+; (text) @none
+(branch) @markup.link
+
 (change) @keyword
-(filepath) @text.uri
+
+(filepath) @string.special.url
+
 (arrow) @punctuation.delimiter
 
-(subject) @text.title
-(subject (overflow) @text)
-(prefix (type) @keyword)
-(prefix (scope) @parameter)
-(prefix [
-    "("
-    ")"
-    ":"
-] @punctuation.delimiter)
-(prefix [
-    "!"
-] @punctuation.special)
+(subject) @markup.heading @spell
 
-(message) @text
+(subject
+  (overflow) @none @spell)
 
-(trailer (token) @keyword)
-(trailer (value) @text)
+(subject
+  (subject_prefix) @function @nospell)
 
-(breaking_change (token) @text.warning)
-(breaking_change (value) @text)
+(prefix
+  (type) @keyword @nospell)
 
-(scissor) @comment
-(subject_prefix) @keyword
+(prefix
+  (scope) @variable.parameter @nospell)
 
-(ERROR) @error
+(prefix
+  [
+   "("
+   ")"
+   ":"
+   ] @punctuation.delimiter)
+
+(prefix
+  "!" @punctuation.special)
+
+(message) @spell
+
+(trailer
+  (token) @label)
+
+; (trailer (value) @none)
+(breaking_change
+  (token) @comment.error)
+
+(breaking_change
+  (value) @none @spell)
+
+(scissor) @comment

queries/injections.scm

@@ -1,8 +1,5 @@
 ((diff) @injection.content
- (#set! injection.combined)
- (#set! injection.language "diff"))
+  (#set! injection.language "diff"))
 
 ((rebase_command) @injection.content
- (#set! injection.combined)
- (#set! injection.language "git_rebase"))
-
+  (#set! injection.language "git_rebase"))

src/grammar.json

@@ -276,15 +276,29 @@
       "type": "SEQ",
       "members": [
         {
-          "type": "PATTERN",
-          "value": "[^#]"
+          "type": "SEQ",
+          "members": [
+            {
+              "type": "PATTERN",
+              "value": "[^#]"
+            },
+            {
+              "type": "PATTERN",
+              "value": "[^\\n\\r]{1,72}"
+            }
+          ]
         },
         {
           "type": "CHOICE",
           "members": [
             {
-              "type": "PATTERN",
-              "value": "[^\\n\\r]+"
+              "type": "ALIAS",
+              "content": {
+                "type": "PATTERN",
+                "value": "[^\\n\\r]+"
+              },
+              "named": true,
+              "value": "overflow"
             },
             {
               "type": "BLANK"

src/node-types.json

@@ -153,6 +153,10 @@
           "type": "comment",
           "named": true
         },
+        {
+          "type": "overflow",
+          "named": true
+        },
         {
           "type": "trailer",
           "named": true