sanitize removes brackets that it should not

[wenottingham]

Describe the problem

When the ANSI sequence is directly wrapped in brackets the brackets are removed from the output.

Steps to reproduce the problem

require 'strings-ansi'

str1 = "[\e[1;34mINFO\e[m] Scanning for projects..."
str2 = "[ \e[1;34mINFO\e[m ] Scanning for projects..."
puts str1
puts str2
puts Strings::ANSI.sanitize(str1)
puts Strings::ANSI.sanitize(str2)

Actual behaviour

[INFO] Scanning for projects...
[ INFO ] Scanning for projects...
INFO Scanning for projects...
[ INFO ] Scanning for projects...

Expected behaviour

[INFO] Scanning for projects...
[ INFO ] Scanning for projects...
[INFO] Scanning for projects...
[ INFO ] Scanning for projects...

Describe your environment

• OS version: Linux (Fedora 38)
• Ruby version: 3.1.4
• strings (0.2.1)
• strings-ansi (0.2.0)