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module Methadone #:nodoc:
# Assists with parsing strings in the same way that ARGV might.
# This is *not* used to parse the command-line, but used to
# parse config files/environment variables so they can be placed into ARGV and properly interpretted by
# OptionParser
module ARGVParser #:nodoc:
private
# Parses +string+, returning an array that can be placed into ARGV or given to OptionParser
def parse_string_for_argv(string) #:nodoc:
return [] if string.nil?
args = [] # return value we are building up
current = 0 # pointer to where we are in +string+
next_arg = '' # the next arg we are building up to ultimatley put into args
inside_quote = nil # quote character we are "inside" of
last_char = nil # the last character we saw
while current < string.length
char = string.chars.to_a[current]
case char
when /["']/
if inside_quote.nil? # eat the quote, but remember we are now "inside" one
inside_quote = char
elsif inside_quote == char # we closed the quote we were "inside"
inside_quote = nil
else # we got a different quote, so it goes in literally
next_arg << char
end
when /\s/
if last_char == "\\" # we have an escaped space, replace the escape char
next_arg[-1] = char
elsif inside_quote # we are inside a quote so keep the space
next_arg << char
else # new argument
args << next_arg
next_arg = ''
end
else
next_arg << char
end
current += 1
last_char = char
end
args << next_arg unless next_arg == ''
args
end
end
end
Version data entries
26 entries across 26 versions & 2 rubygems