Split text into an array of tokens in the same way the UNIX Bourne shell
does.
See the Shellwords module
documentation for an example.
# File lib/shellwords.rb, line 28
def shellwords(line)
line = String.new(line) rescue
raise(ArgumentError, "Argument must be a string")
line.lstrip!
words = []
until line.empty?
field = ''
loop do
if line.sub!(/\A"(([^"\\]|\\.)*)"/, '') then
snippet = $1.gsub(/\\(.)/, '\1')
elsif line =~ /\A"/ then
raise ArgumentError, "Unmatched double quote: #{line}"
elsif line.sub!(/\A'([^']*)'/, '') then
snippet = $1
elsif line =~ /\A'/ then
raise ArgumentError, "Unmatched single quote: #{line}"
elsif line.sub!(/\A\\(.)?/, '') then
snippet = $1 || '\\'
elsif line.sub!(/\A([^\s\\'"]+)/, '') then
snippet = $1
else
line.lstrip!
break
end
field.concat(snippet)
end
words.push(field)
end
words
end