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#
# getopts.rb -
# $Release Version: $
# $Revision$
# $Date$
# by Yasuo OHBA(SHL Japan Inc. Technology Dept.)
#
# --
# this is obsolete; use getoptlong
#
# 2000-03-21
# modified by Minero Aoki <[email protected]>
#
$RCS_ID=%q$Header$
def getopts( single_opts, *options )
single_opts_exp = (single_opts && !single_opts.empty?) ?
/[#{single_opts}]/ : nil
single_colon_exp = nil
single_colon = nil
opt = arg = val = nil
boolopts = {}
valopts = {}
argv = ARGV
newargv = []
#
# set default
#
if single_opts then
single_opts.each_byte do |byte|
boolopts[ byte.chr ] = false
end
end
unless options.empty? then
single_colon = ''
options.each do |opt|
m = /\A([^:]+):(.*)\z/.match( opt )
if m then
valopts[ m[1] ] = m[2].empty? ? 0 : m[2]
else
boolopts[ opt ] = false
end
end
valopts.each do |opt, dflt|
if opt.size == 1 then
single_colon << opt
end
end
if single_colon.empty? then
single_colon = single_colon_exp = nil
else
single_colon_exp = /[#{single_colon}]/
end
end
#
# scan
#
c = 0
arg = argv.shift
while arg do
case arg
when /\A--?\z/ # xinit -- -bpp 24
newargv.concat argv
break
when /\A--(.*)/
opt = $1
if valopts.key? opt then # imclean --src +trash
return nil if argv.empty?
valopts[ opt ] = argv.shift
elsif boolopts.key? opt then # ruby --verbose
boolopts[ opt ] = true
else
return nil
end
c += 1
when /\A-(.+)/
arg = $1
0.upto( arg.size - 1 ) do |idx|
opt = arg[idx, 1]
if single_opts and single_opts_exp === opt then
boolopts[ opt ] = true # ruby -h
c += 1
elsif single_colon and single_colon_exp === opt then
val = arg[ (idx+1)..-1 ]
if val.empty? then # ruby -e 'p $:'
return nil if argv.empty?
valopts[ opt ] = argv.shift
else # cc -ohello ...
valopts[ opt ] = val
end
c += 1
break
else
return nil
end
end
else # ruby test.rb
newargv.push arg
end
arg = argv.shift
end
#
# set
#
boolopts.each do |opt, val|
eval "$OPT_#{opt} = val"
end
valopts.each do |opt, val|
eval "$OPT_#{opt} = #{val == 0 ? 'nil' : 'val'}"
end
argv.replace newargv
c
end
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