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@arton arton/grep.bat
Last active Dec 16, 2015

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Grep for CP932, utf-8 and utf-16 as batch file
@echo off
c:\progra~2\RUBY-2~1.0\bin\ruby -x "%~f0" %*
@goto endofruby
#!C:/PROGRA~2/RUBY-2~1.0/bin/ruby
# coding: utf-8
if ARGV.size < 2
exit 1
end
def find_pattern(fn, enc, pattern)
r = ''
File.open(fn, "rb:#{enc}") do |f|
r = f.read
end
if enc != 'cp932'
if enc == 'utf-8' && r[0] == "\uFEFF"
r = r[1..-1]
end
r = r.encode('cp932')
end
disp = nil
$cline = 0
r.each_line do |line|
$cline += 1
line.rstrip!
if line =~ pattern
puts("File: #{fn}") unless disp
disp = true
puts(line)
end
end
end
icase = false
recursive = false
loop do
if ARGV[0] == '-i'
icase = true
elsif ARGV[0] == '-r'
recursive = true
elsif ARGV[0] == '-n'
# ignore
else
break
end
ARGV.shift
end
if icase
pattern = /#{ARGV[0]}/i
else
pattern = /#{ARGV[0]}/
end
ARGV.shift
ARGV.each do |fn|
['cp932', 'utf-8', 'utf-16'].each do |enc|
begin
find_pattern(fn, enc, pattern)
break
rescue ArgumentError => e
if $DBG
$stderr.puts e.message + ' while reading: ' + fn
$stderr.puts 'line: ' + $cline.to_s
$stderr.puts e.backtrace
end
rescue Encoding::InvalidByteSequenceError => e
if $DBG
$stderr.puts e.message + ' while reading: ' + fn
$stderr.puts 'line: ' + $cline.to_s
$stderr.puts e.backtrace
end
end
end
end
__END__
:endofruby
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