re = /(?is)<input(?![^>]+type=)[^>]+>/
str = '<input name="a" type="button" />
<input name="b">
<input type="button" name="c">
<input type="button" name="d">
<input name="e">
<input name="f" type="button">
<input name="g">'
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html