class IO
Public Class Methods
binread(file, length = nil, offset = 0)
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# File lib/backports/1.9.1/io/binread.rb, line 4 def IO.binread(file, length = nil, offset = 0) File.open(Backports.convert_path(file),"rb") do |f| f.seek(offset) f.read(length) end end
binwrite(name, string, offset = nil, options = Backports::Undefined)
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# File lib/backports/1.9.3/io/binwrite.rb, line 4 def IO.binwrite(name, string, offset = nil, options = Backports::Undefined) Backports.write(true, name, string, offset, options) end
open_with_options_hash(*args) { |f| ... }
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# File lib/backports/1.9.1/io/open.rb, line 9 def open_with_options_hash(*args) if args.size > 2 || args[1].respond_to?(:to_hash) fd, mode, options = (args << Backports::Undefined) args = [fd, Backports.combine_mode_and_option(mode, options)] end if block_given? open_without_options_hash(*args){|f| yield f} else open_without_options_hash(*args) end end
try_convert(obj)
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# File lib/backports/1.9.1/io/try_convert.rb, line 4 def IO.try_convert(obj) Backports.try_convert(obj, IO, :to_io) end
write(name, string, offset = nil, options = Backports::Undefined)
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# File lib/backports/1.9.3/io/write.rb, line 4 def IO.write(name, string, offset = nil, options = Backports::Undefined) Backports.write(false, name, string, offset, options) end
Public Instance Methods
advise(advice, offset=0, len=0)
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# File lib/backports/1.9.3/io/advise.rb, line 5 def advise(advice, offset=0, len=0) raise RangeError if Backports.coerce_to_int(offset) >= 1<<31 raise RangeError if Backports.coerce_to_int(len) >= 1<<31 raise IOError if closed? case advice when :normal, :sequential, :random, :willneed, :dontneed, :noreuse return nil when Symbol raise NotImplementedError, "Unsupported advice #{advice}" else raise TypeError, "advice must be a Symbol" end end
each_char() { |c| ... }
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# File lib/backports/1.8.7/io/each_char.rb, line 5 def each_char return to_enum(:each_char) unless block_given? if $KCODE == "UTF-8" lookup = 7.downto(4) while c = read(1) do n = c[0] leftmost_zero_bit = lookup.find{|i| n[i].zero? } case leftmost_zero_bit when 7 # ASCII yield c when 6 # UTF 8 complementary characters next # Encoding error, ignore else more = read(6-leftmost_zero_bit) break unless more yield c+more end end else while s = read(1) yield s end end self end
Also aliased as: chars