Question

help me please with regular expression in ruby.

I have a text like

1. Hello, World\n
2.\n
Good Morning\n

I expect a two strings, but in original it has a three strings with bad ‘new line – \n’ character

Question how to replace ‘bad’ \n after ‘2.’ and before ‘Good Morning\n’
I have a trouble with thousands mistakes like this

Answer 1

you could remove the ‘bad’ newline character like this

string = "1. Hello, World\n 2.\n Good Morning\n"
new_string = string.gsub(/(\d+\.)\n/, '\1') #=> "1. Hello, World\n 2. Good Morning\n"

This removes a newline character after one or more digits followed by a dot.