TTY::Box.frame with a static width fails if the text joins multiple Pastel styled strings

[adamstegman]

Describe the problem

This sounds a lot like #5, but the error is different. When I frame a box with a static width and pass a string containing two pastel strings as the content, an IndexError is raised.

Steps to reproduce the problem

require "pastel"
require "tty-box"

pastel = Pastel.new
box = TTY::Box

print box.frame(
  "#{pastel.italic("TEXT TEXT TEXT TEXT")}; #{pastel.italic("TEXT TEXT TEXT TEXT")}",
  width: 40,
)

Actual behaviour

Error raised

/Users/adam/.gem/ruby/3.0.3/gems/strings-0.2.1/lib/strings/wrap.rb:158:in `insert': index 20 out of string (IndexError)
	from /Users/adam/.gem/ruby/3.0.3/gems/strings-0.2.1/lib/strings/wrap.rb:158:in `block in insert_ansi'
	from /Users/adam/.gem/ruby/3.0.3/gems/strings-0.2.1/lib/strings/wrap.rb:142:in `reverse_each'
	from /Users/adam/.gem/ruby/3.0.3/gems/strings-0.2.1/lib/strings/wrap.rb:142:in `insert_ansi'
	from /Users/adam/.gem/ruby/3.0.3/gems/strings-0.2.1/lib/strings/wrap.rb:111:in `format_line'
	from /Users/adam/.gem/ruby/3.0.3/gems/strings-0.2.1/lib/strings/wrap.rb:30:in `block in wrap'
	from /Users/adam/.gem/ruby/3.0.3/gems/strings-0.2.1/lib/strings/wrap.rb:29:in `map'
	from /Users/adam/.gem/ruby/3.0.3/gems/strings-0.2.1/lib/strings/wrap.rb:29:in `wrap'
	from /Users/adam/.gem/ruby/3.0.3/gems/tty-box-0.7.0/lib/tty/box.rb:337:in `block in format'
	from /Users/adam/.gem/ruby/3.0.3/gems/tty-box-0.7.0/lib/tty/box.rb:336:in `each'
	from /Users/adam/.gem/ruby/3.0.3/gems/tty-box-0.7.0/lib/tty/box.rb:336:in `each_with_object'
	from /Users/adam/.gem/ruby/3.0.3/gems/tty-box-0.7.0/lib/tty/box.rb:336:in `format'
	from /Users/adam/.gem/ruby/3.0.3/gems/tty-box-0.7.0/lib/tty/box.rb:219:in `frame'
	from test.rb:7:in `<main>'

Expected behaviour

The too-long string is wrapped inside the box, like an unstyled string

Describe your environment

• OS version: macOS 13.3.1 (a)
• Ruby version: 3.0.3p157
• TTY::Box version: 0.7.0