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bat2unix.bat
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bat2unix.bat
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@rem -*- mode:Ruby; tab-width:4; coding:UTF-8; -*-
@rem vi:set ft=ruby ts=4 fenc=UTF-8 :
@ruby -x -- "%~dpn0.bat" %*
@goto :eof
[option]
arg = -x -- "${MY_ININAME}"${ARG}
use_path
[exec]
ruby
[end]
#----------------------------------------------------------------
#! /usr/bin/ruby
# coding: UTF-8
#----------------------------------------------------------------
# Windows向けのバッチファイルでもあるスクリプトからUNIX向けスクリプトを作成する
#
# 2011/03/29 opa
#----------------------------------------------------------------
ProgName = 'bat2unix'
Version = '1.00'
#=====dpk===== determine_encode
require 'kconv'
# nilなら別の値を返す
def nz(a, b)
return (a.nil?) ? b : a
end
# エンコーディングを忘れ去って単なるバイト列とする
class String
def verbatim
self.force_encoding(Encoding::BINARY)
end
end
# エンコードを判定(推測)する
def determine_encode(filename)
# zwnbsp = "\ufeff"
# 先頭部分を読み込み
data = nz(File.read(filename, 2000, 0), "").verbatim
# coding指定があればそれを信じる
if data =~ /coding[:=]\s*([\w.-]+)/
coding = $1
case coding.upcase
when "UTF-32BE"
return "BOM|UTF-32BE" if data[0..3] == "\x00\x00\xFE\xFF".verbatim
when "UTF-32LE"
return "BOM|UTF-32LE" if data[0..3] == "\xFF\xFE\x00\x00".verbatim
when "UTF-8"
return "BOM|UTF-8" if data[0..2] == "\xEF\xBB\xBF".verbatim
when "UTF-16BE"
return "BOM|UTF-16BE" if data[0..1] == "\xFE\xFF".verbatim
when "UTF-16LE"
return "BOM|UTF-16LE" if data[0..1] == "\xFF\xFE".verbatim
end
return coding
end
# BOMがあればそれを信じる
return "BOM|UTF-32BE" if data[0..3] == "\x00\x00\xFE\xFF".verbatim
return "BOM|UTF-32LE" if data[0..3] == "\xFF\xFE\x00\x00".verbatim
return "BOM|UTF-8" if data[0..2] == "\xEF\xBB\xBF".verbatim
return "BOM|UTF-16BE" if data[0..1] == "\xFE\xFF".verbatim
return "BOM|UTF-16LE" if data[0..1] == "\xFF\xFE".verbatim
# いずれもなければKconvで推測する
return Kconv.guess(data).to_s
end
#=====dpk=====
def bat2unix(filename)
# ファイルが存在しなければこのファイルの処理をスキップ
if !File.exist?(filename)
printf("%s: Not exist: %s\n", ProgName, filename)
return
end
# 拡張子がない場合はこのファイルの処理をスキップ
if File.extname(filename).empty?
printf("%s: No extname: skip: %s\n", ProgName, filename)
return
end
encode = determine_encode(filename)
infile = []
File.open(filename, "r:#{encode}:internal") do |it|
infile = it.readlines
end
# #!行を探す
start_line = nil
line = 0
infile.each do |aline|
line += 1
if aline =~ /^#!/
start_line = line
break
end
end
# #!行がない場合はこのファイルの処理をスキップ
if start_line.nil?
printf("%s: No shbang: skip: %s\n", ProgName, filename)
return
end
# #!行までをスキップして出力
infile.shift(start_line - 1)
File.open(File.basename(filename, ".*"), "wb") do |it|
it.write(infile.join)
end
end
def main()
if ARGV.empty?
printf("usage: %s [filename...]\n", ProgName)
else
ARGV.each do |it|
bat2unix(it)
end
end
return 0
end
exit main