93 lines
1.8 KiB
Ruby
Executable File
93 lines
1.8 KiB
Ruby
Executable File
class DenCli
|
|
class UsageError < ::RuntimeError
|
|
end
|
|
class UnknownCommand < UsageError
|
|
end
|
|
|
|
require_relative 'dencli/cmd'
|
|
require_relative 'dencli/sub'
|
|
require_relative 'dencli/interactive'
|
|
require_relative 'dencli/version'
|
|
|
|
class <<self
|
|
# Helper Function for generate Regular Expressions of string,
|
|
# which matches all strings which has parts fron beginning of the given string.
|
|
# `n("abc")` would produce: `/(?:a|ab|abc)/`
|
|
# You can define a minimum length to match:
|
|
# `n("abcdef",4)` => `/abcd(?:|e|ef)/`
|
|
def n s, min = nil
|
|
min ||= 1
|
|
/#{s.length <= min ?
|
|
Regexp.quote(s) :
|
|
"#{Regexp.quote s[0...min]}#{
|
|
s[min...-1].
|
|
reverse.
|
|
each_char.
|
|
reduce( "#{Regexp.quote s[-1]}?") {|f,n|
|
|
"(?:#{Regexp.quote n}#{f})?"
|
|
}
|
|
}"
|
|
}/
|
|
end
|
|
|
|
# Wraps `n(s,min=)` in a full matching RegExp with ending `\0`:
|
|
# `r("abc")` would produce: `/\A(?:a|ab|abc)\0\z/`
|
|
# You can define a minimum length to match:
|
|
# `r("abcdef",4)` => `/\aabcd(?:|e|ef)\0\z/`
|
|
def r s, min = nil
|
|
/\A#{n s, min}\0\z/
|
|
end
|
|
|
|
# Generates a list of aliases for given `cmd`:
|
|
# `g(:abc)` => `["a", "ab", "abc"]`
|
|
# `g(:abcdef, 4)` => `["abcd", "abcde", "abcdef"]`
|
|
def gen_aliases cmd, min = nil
|
|
r = ((min||1)-1).upto cmd.length-1
|
|
if block_given?
|
|
r.each {|i| yield cmd[0..i] }
|
|
else
|
|
r.map {|i| cmd[0..i] }
|
|
end
|
|
end
|
|
alias g gen_aliases
|
|
end
|
|
|
|
attr_reader :subs
|
|
|
|
def initialize progname, desc
|
|
@subs = Sub.new self, progname, desc
|
|
end
|
|
|
|
def full_cmd
|
|
[]
|
|
end
|
|
|
|
def _full_cmd post
|
|
post
|
|
end
|
|
|
|
def sub *a, &exe
|
|
@subs.sub *a, &exe
|
|
end
|
|
|
|
def cmd *a, &exe
|
|
@subs.cmd *a, &exe
|
|
end
|
|
|
|
def call *a
|
|
@subs.call *a
|
|
end
|
|
|
|
def help *args
|
|
@subs.help *args
|
|
end
|
|
|
|
def [] k
|
|
@subs[k]
|
|
end
|
|
|
|
def interactive *args, **opts
|
|
Interactive.new self, *args, **opts
|
|
end
|
|
end
|