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require 'zlib'
class ReadFile
def initialize fn, encoding='utf-8'
if fn.split('.').last == 'gz'
@f = Zlib::GzipReader.new(File.new(fn, 'rb'), :external_encoding=>encoding)
elsif fn == '-'
@f = STDIN
STDIN.set_encoding encoding
else
@f = File.new fn, 'r'
@f.set_encoding encoding
end
end
def gets
@f.gets { |line| yield line }
end
def rewind
@f.rewind
end
def readlines
@f.readlines
end
def self.readlines fn, encoding='utf-8'
f = ReadFile.new fn, encoding
r = f.readlines
f.close
return r
end
def readlines_strip
self.readlines.map{ |i| i.strip }
end
def self.readlines_strip fn, encoding='utf-8'
f = ReadFile.new fn, encoding
r = f.readlines_strip
f.close
return r
end
def read
@f.read
end
def self.read fn, encoding='utf-8'
f = ReadFile.new fn, encoding
r = f.read
f.close
return r
end
def close
@f.close if @f!=STDIN
end
end
class WriteFile
def initialize fn, encoding='utf-8'
if fn.split('.').last == 'gz'
@f = Zlib::GzipWriter.new(File.new(fn, 'wb+'), :external_encoding=>encoding)
elsif fn == '-'
@f = STDOUT
STDOUT.set_encoding encoding
else
@f = File.new fn, 'w+'
@f.set_encoding encoding
end
end
def write s
@f.write s
end
def self.write s, fn, encoding='utf-8'
f = WriteFile.new fn, encoding
f.write s
f.close
end
def close
@f.close if @f!=STDIN
end
end
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