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require 'gli/command_line_token.rb'
module GLI
# Defines a command line switch
class Switch < CommandLineToken
def initialize(names,description,long_desc=nil)
super(names,description,long_desc)
end
# Given the argument list, scans it looking for this switch
# returning true if it's in the argumennt list (and removing it from the argument list)
def get_value!(args)
idx = -1
args.each_index do |i|
result = find_me(args[i])
if result[0]
if result[1]
args[i] = result[1]
else
args.delete_at i
end
return result[0]
end
end
false
end
# Finds the switch in the given arg, returning the arg to keep.
# Returns an array of size 2:
# [0] true or false if the arg was found
# [1] the remaining arg to keep in the command line or nil to remove it
def find_me(arg)
if @names[arg]
return [true,nil]
end
@names.keys.each() do |name|
if name =~ /^-(\w)$/
match_string = "^\\-(\\w*)#{$1}(\\w*)$"
match_data = arg.match(match_string)
if match_data
# Note that if [1] and [2] were both empty
# we'd have returned above
return [true, "-" + match_data[1] + match_data[2]]
end
end
end
[false]
end
def self.name_as_string(name)
string = name.to_s
string.length == 1 ? "-#{string}" : "--#{string}"
end
end
end
Version data entries
16 entries across 16 versions & 3 rubygems