Feature #5129
Updated by nobu (Nobuyoshi Nakada) over 6 years ago
I suggest to create a class "`FileArray`" "FileArray" whose instance behaves just like `ARGF` ARGF do. And I think `ARGF` ARGF should be an instance of `FileArray`. FileArray. Now when I "`p ARGF.class`", "p ARGF.class", I get "`ARGF.class`", "ARGF.class", so `ARGF` ARGF is an instance of `ARGF.class`, ARGF.class, how meaningless it is. FileArray methods: ```ruby # create an instance fa = FileArray.new('a.txt','b.txt','c.txt') # take many methods from IO # most methods from ARGF should be instance methods of ARGF fa.each {|line| puts line } fa.realines fa.filename # current file # but "argv" not p fa.file_list # in ARGF, its ARGF.argv, but #argv is not a proper name for FileArray # ARGV array can be modified, adding new file into it, all replace to a new file list. # FileArray should add some methods to modify the inner file list. fa.insert(3,"d.txt") fa.delete('a.txt') ``` With `FileArray`, FileArray, You can create multiple `ARGF`-like ARGF-like file arrays simultaneously. For example, I want to mix two *groups* of files, not two files: ```ruby a_files = FileArray.new(*Dir.glob('a*.txt')) b_files = FileArray.new(*Dir.glob('b*.txt')) enum_a = a_files.each enum_b = b_files.each loop do puts enum_a.next puts enum_b.next end ```