Parsing fails if Windows style CRLF line endings are used

[Kenneth Pierce]

First off: this is excellent and has saved me a lot of time. Thank you for making it and making it public.

I came across this issue when making the linux equivalent of an existing windows installer.

Works fine after converting the CRLF to LF. This is on Ubuntu 16.04.

My guess is that read only looks for LF and the trailing CR is causing it to fail the section regex test.

Example INI:

[smtp]
host=example.com
port=25
authentication=true
use_tls=true
from_email=[e-mail]
username=ex
password=expass

Save it with CRLF line endings and read_ini setup.ini -p setup -b 0 will fail with

Error: Invalid line:
1: [smtp]

[Mattijs Snepvangers]

possible fix:

dos_ini_file=$ini_file
unset $ini_file
tr -d '\r' < $dos_ini_file > $ini_file