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#! /usr/local/bin/ruby
module ParseDate
MONTHS = {
'jan' => 1, 'feb' => 2, 'mar' => 3, 'apr' => 4,
'may' => 5, 'jun' => 6, 'jul' => 7, 'aug' => 8,
'sep' => 9, 'oct' =>10, 'nov' =>11, 'dec' =>12 }
MONTHPAT = MONTHS.keys.join('|')
DAYPAT = 'mon|tue|wed|thu|fri|sat|sun'
def parsedate(date)
if date.sub(/(#{DAYPAT})/i, ' ')
dayofweek = $1
end
if date.sub(/\s+(\d+:\d+(:\d+)?)/, ' ')
time = $1
end
if date =~ /19(\d\d)/
year = $1
end
if date.sub(/\s*(\d+)\s+(#{MONTHPAT})\S*\s+/i, ' ')
dayofmonth = $1
monthname = $2
elsif date.sub(/\s*(#{MONTHPAT})\S*\s+(\d+)\s+/i, ' ')
monthname = $1
dayofmonth = $2
elsif date.sub(/\s*(#{MONTHPAT})\S*\s+(\d+)\D+/i, ' ')
monthname = $1
dayofmonth = $2
elsif date.sub(/\s*(\d\d?)\/(\d\d?)/, ' ')
month = $1
dayofmonth = $2
end
if monthname
month = MONTHS[monthname.tolower]
end
if ! year && date =~ /\d\d/
year = $&
end
return year, month, dayofmonth
end
end
include ParseDate
def decode64(str)
e = -1;
c = ","
for line in str.split("\n")
line.tr 'A-Za-z0-9+/', "\000-\377"
line.each_byte { |ch|
e+=1
if e==0
c = ch << 2
elsif e==1
c |= ch >>4
string += [c].pack('c')
c = ch << 4
elsif e == 2
c |= ch >> 2
string += [c].pack('c');
c = ch << 6
elsif e==3
c |= ch
string += [c].pack('c')
e = -1;
end
}
end
return string;
end
def j2e(str)
while str =~ /\033\$B([^\033]*)\033\(B/
s = $1
pre, post = $`, $'
s.gsub(/./) { |ch|
(ch[0]|0x80).chr
}
str = pre + s + post
end
str
end
def decode_b(str)
while str =~ /=\?ISO-2022-JP\?B\?(.*)=\?=/
pre, post = $`, $'
s = decode64($1)
str = pre + s + post
end
j2e(str)
end
if $ARGV[0] == '-w'
wait = TRUE
$ARGV.shift
end
class Mail
def Mail.new(f)
if !f.is_kind_of(IO)
f = open(f, "r")
me = super
f.close
else
me = super
end
return me
end
def initialize(f)
@header = {}
@body = []
while f.gets()
$_.chop
continue if /^From / # skip From-line
break if /^[ \t]*$/ # end of header
if /^(\S+):\s*(.*)/
@header[attr = $1.capitalize] = $2
elsif attr
sub(/^\s*/, '')
@header[attr] += "\n" + $_
end
end
return if ! $_
while f.gets()
break if /^From /
@body.push($_)
end
end
def header
return @header
end
def body
return @body
end
end
$ARGV[0] = '/usr/spool/mail/' + ENV['USER'] if $ARGV.length == 0
$outcount = 0;
def fromout(date, from, subj)
return if !date
y = m = d = 0
y, m, d = parsedate(date) if date
from = "sombody@somewhere" if ! from
subj = "(nil)" if ! subj
from = decode_b(from)
subj = decode_b(subj)
printf "%-02d/%02d/%02d [%-28.28s] %-40.40s\n", y, m, d, from, subj
$outcount += 1
end
for file in $ARGV
continue if !File.exists(file)
f = open(file, "r")
while !f.eof
mail = Mail.new(f)
fromout mail.header['Date'], mail.header['From'], mail.header['Subject']
end
f.close
end
if $outcount == 0
print "You have no mail.\n"
sleep 2 if wait
elsif wait
system "stty cbreak -echo"
getc()
system "stty cooked echo"
end
|
