Generates line with drawn armPlainLine like: ╰───╸
with repeating this.other character to fit this.armWidth
remarks
During generation first have higher priority then last.
So first will be the only generated character if this.armWidth = 1.
Same way other have lowest priority. And appars only if this.armWidth > 2
remarks
Returning StrictUnicodeLine instead of raw string is to skip
safaty-checks in tree generator/renderer.
Generates line with drawn armPlainLine like:
╰───╸with repeatingthis.othercharacter to fitthis.armWidthDuring generation
firsthave higher priority thenlast. Sofirstwill be the only generated character ifthis.armWidth = 1. Same wayotherhave lowest priority. And appars only ifthis.armWidth > 2Returning StrictUnicodeLine instead of raw string is to skip safaty-checks in tree generator/renderer.
BasicPattern