fix(#206): TagNode.create now with null content argument by default (#233)

* fix: TagNode.create with null content by default

* Create five-meals-sing.md

* fix: tests

* fix(preset): types inference

* fix: preset types

* fix: preset types

* fix: lock file, parser and utils

* refactor: move types to separate package

* fix(preset): add @bbob/core to dev deps

* fix(preset): lock file

* test(preset-vue): create tags

* test(preset-vue): tests

* chore(nx): fix nx cover deps

* chore: changesets

packages/bbob-parser/src/utils.ts

@@ -35,6 +35,10 @@ export class CharGrabber {
   }
 
   getCurr() {
+    if (typeof this.s[this.c.pos] === 'undefined') {
+      return ''
+    }
+
     return this.s[this.c.pos]
   }
 
@@ -51,7 +55,11 @@ export class CharGrabber {
   getPrev() {
     const prevPos = this.c.pos - 1;
 
-    return typeof this.s[prevPos] !== 'undefined' ? this.s[prevPos] : null;
+    if (typeof this.s[prevPos] === 'undefined') {
+      return null
+    }
+
+    return this.s[prevPos];
   }
 
   isLast() {