How to match full words and not substrings in Ruby

Question

This is my code

stopwordlist = \"a|an|all\"
File.open(\'0_9.txt\').each do |line|
line.downcase!
line.gsub!( /\\b#{stopwordlist}\\b/,\'\')
File.open(\'0_9_2.         


        

Answer 1

\ba\b|\ban\b|\ball\b

try this.this will look for word boundaries.