alt-getopt/alt_getopt.lua at master · LuaDist/alt-getopt · GitHub

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-- Copyright (c) 2009 Aleksey Cheusov <vle@gmx.net>
--
-- Permission is hereby granted, free of charge, to any person obtaining
-- a copy of this software and associated documentation files (the
-- "Software"), to deal in the Software without restriction, including
-- without limitation the rights to use, copy, modify, merge, publish,
-- distribute, sublicense, and/or sell copies of the Software, and to
-- permit persons to whom the Software is furnished to do so, subject to
-- the following conditions:
--
-- The above copyright notice and this permission notice shall be
-- included in all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

localtype, pairs, ipairs, io, os=type, pairs, ipairs, io, os

module ("alt_getopt")

localfunctionconvert_short2long (opts)
locali=1
locallen=#opts
localret= {}

forshort_opt, accept_arginopts:gmatch("(%w)(:?)") do
ret[short_opt]=#accept_arg
end

returnret
end

localfunctionexit_with_error (msg, exit_status)
io.stderr:write (msg)
os.exit (exit_status)
end

localfunctionerr_unknown_opt (opt)
exit_with_error ("Unknown option `-" ..
 (#opt>1and"-" or"") ..opt.."'\n", 1)
end

localfunctioncanonize (options, opt)
ifnotoptions [opt] then
err_unknown_opt (opt)
end

whiletype (options [opt]) =="string" do
opt=options [opt]

ifnotoptions [opt] then
err_unknown_opt (opt)
end
end

returnopt
end

functionget_ordered_opts (arg, sh_opts, long_opts)
locali=1
localcount=1
localopts= {}
localoptarg= {}

localoptions=convert_short2long (sh_opts)
fork,vinpairs (long_opts) do
options [k] =v
end

whilei<=#argdo
locala=arg [i]

ifa=="--" then
i=i+1
break

elseifa=="-" then
break

elseifa:sub (1, 2) =="--" then
localpos=a:find ("=", 1, true)

ifposthen
localopt=a:sub (3, pos-1)

opt=canonize (options, opt)

ifoptions [opt] ==0then
exit_with_error ("Bad usage of option `" ..a.."'\n", 1)
end

optarg [count] =a:sub (pos+1)
opts [count] =opt
else
localopt=a:sub (3)

opt=canonize (options, opt)

ifoptions [opt] ==0then
opts [count] =opt
else
ifi==#argthen
exit_with_error ("Missed value for option `" ..a.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
end
end
count=count+1

elseifa:sub (1, 1) =="-" then
localj
forj=2,a:len () do
localopt=canonize (options, a:sub (j, j))

ifoptions [opt] ==0then
opts [count] =opt
count=count+1
elseifa:len () ==jthen
ifi==#argthen
exit_with_error ("Missed value for option `-" ..opt.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
count=count+1
break
else
optarg [count] =a:sub (j+1)
opts [count] =opt
count=count+1
break
end
end
else
break
end

i=i+1
end

returnopts,i,optarg
end

functionget_opts (arg, sh_opts, long_opts)
localret= {}

localopts,optind,optarg=get_ordered_opts (arg, sh_opts, long_opts)
fori,vinipairs (opts) do
ifoptarg [i] then
ret [v] =optarg [i]
else
ret [v] =1
end
end

returnret,optind
end
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-- Copyright (c) 2009 Aleksey Cheusov <vle@gmx.net>
--
-- Permission is hereby granted, free of charge, to any person obtaining
-- a copy of this software and associated documentation files (the
-- "Software"), to deal in the Software without restriction, including
-- without limitation the rights to use, copy, modify, merge, publish,
-- distribute, sublicense, and/or sell copies of the Software, and to
-- permit persons to whom the Software is furnished to do so, subject to
-- the following conditions:
--
-- The above copyright notice and this permission notice shall be
-- included in all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

localtype, pairs, ipairs, io, os=type, pairs, ipairs, io, os

module ("alt_getopt")

localfunctionconvert_short2long (opts)
locali=1
locallen=#opts
localret= {}

forshort_opt, accept_arginopts:gmatch("(%w)(:?)") do
ret[short_opt]=#accept_arg
end

returnret
end

localfunctionexit_with_error (msg, exit_status)
io.stderr:write (msg)
os.exit (exit_status)
end

localfunctionerr_unknown_opt (opt)
exit_with_error ("Unknown option `-" ..
 (#opt>1and"-" or"") ..opt.."'\n", 1)
end

localfunctioncanonize (options, opt)
ifnotoptions [opt] then
err_unknown_opt (opt)
end

whiletype (options [opt]) =="string" do
opt=options [opt]

ifnotoptions [opt] then
err_unknown_opt (opt)
end
end

returnopt
end

functionget_ordered_opts (arg, sh_opts, long_opts)
locali=1
localcount=1
localopts= {}
localoptarg= {}

localoptions=convert_short2long (sh_opts)
fork,vinpairs (long_opts) do
options [k] =v
end

whilei<=#argdo
locala=arg [i]

ifa=="--" then
i=i+1
break

elseifa=="-" then
break

elseifa:sub (1, 2) =="--" then
localpos=a:find ("=", 1, true)

ifposthen
localopt=a:sub (3, pos-1)

opt=canonize (options, opt)

ifoptions [opt] ==0then
exit_with_error ("Bad usage of option `" ..a.."'\n", 1)
end

optarg [count] =a:sub (pos+1)
opts [count] =opt
else
localopt=a:sub (3)

opt=canonize (options, opt)

ifoptions [opt] ==0then
opts [count] =opt
else
ifi==#argthen
exit_with_error ("Missed value for option `" ..a.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
end
end
count=count+1

elseifa:sub (1, 1) =="-" then
localj
forj=2,a:len () do
localopt=canonize (options, a:sub (j, j))

ifoptions [opt] ==0then
opts [count] =opt
count=count+1
elseifa:len () ==jthen
ifi==#argthen
exit_with_error ("Missed value for option `-" ..opt.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
count=count+1
break
else
optarg [count] =a:sub (j+1)
opts [count] =opt
count=count+1
break
end
end
else
break
end

i=i+1
end

returnopts,i,optarg
end

functionget_opts (arg, sh_opts, long_opts)
localret= {}

localopts,optind,optarg=get_ordered_opts (arg, sh_opts, long_opts)
fori,vinipairs (opts) do
ifoptarg [i] then
ret [v] =optarg [i]
else
ret [v] =1
end
end

returnret,optind
end
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-- Copyright (c) 2009 Aleksey Cheusov <vle@gmx.net>
--
-- Permission is hereby granted, free of charge, to any person obtaining
-- a copy of this software and associated documentation files (the
-- "Software"), to deal in the Software without restriction, including
-- without limitation the rights to use, copy, modify, merge, publish,
-- distribute, sublicense, and/or sell copies of the Software, and to
-- permit persons to whom the Software is furnished to do so, subject to
-- the following conditions:
--
-- The above copyright notice and this permission notice shall be
-- included in all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

localtype, pairs, ipairs, io, os=type, pairs, ipairs, io, os

module ("alt_getopt")

localfunctionconvert_short2long (opts)
locali=1
locallen=#opts
localret= {}

forshort_opt, accept_arginopts:gmatch("(%w)(:?)") do
ret[short_opt]=#accept_arg
end

returnret
end

localfunctionexit_with_error (msg, exit_status)
io.stderr:write (msg)
os.exit (exit_status)
end

localfunctionerr_unknown_opt (opt)
exit_with_error ("Unknown option `-" ..
 (#opt>1and"-" or"") ..opt.."'\n", 1)
end

localfunctioncanonize (options, opt)
ifnotoptions [opt] then
err_unknown_opt (opt)
end

whiletype (options [opt]) =="string" do
opt=options [opt]

ifnotoptions [opt] then
err_unknown_opt (opt)
end
end

returnopt
end

functionget_ordered_opts (arg, sh_opts, long_opts)
locali=1
localcount=1
localopts= {}
localoptarg= {}

localoptions=convert_short2long (sh_opts)
fork,vinpairs (long_opts) do
options [k] =v
end

whilei<=#argdo
locala=arg [i]

ifa=="--" then
i=i+1
break

elseifa=="-" then
break

elseifa:sub (1, 2) =="--" then
localpos=a:find ("=", 1, true)

ifposthen
localopt=a:sub (3, pos-1)

opt=canonize (options, opt)

ifoptions [opt] ==0then
exit_with_error ("Bad usage of option `" ..a.."'\n", 1)
end

optarg [count] =a:sub (pos+1)
opts [count] =opt
else
localopt=a:sub (3)

opt=canonize (options, opt)

ifoptions [opt] ==0then
opts [count] =opt
else
ifi==#argthen
exit_with_error ("Missed value for option `" ..a.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
end
end
count=count+1

elseifa:sub (1, 1) =="-" then
localj
forj=2,a:len () do
localopt=canonize (options, a:sub (j, j))

ifoptions [opt] ==0then
opts [count] =opt
count=count+1
elseifa:len () ==jthen
ifi==#argthen
exit_with_error ("Missed value for option `-" ..opt.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
count=count+1
break
else
optarg [count] =a:sub (j+1)
opts [count] =opt
count=count+1
break
end
end
else
break
end

i=i+1
end

returnopts,i,optarg
end

functionget_opts (arg, sh_opts, long_opts)
localret= {}

localopts,optind,optarg=get_ordered_opts (arg, sh_opts, long_opts)
fori,vinipairs (opts) do
ifoptarg [i] then
ret [v] =optarg [i]
else
ret [v] =1
end
end

returnret,optind
end
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-- Copyright (c) 2009 Aleksey Cheusov <vle@gmx.net>
--
-- Permission is hereby granted, free of charge, to any person obtaining
-- a copy of this software and associated documentation files (the
-- "Software"), to deal in the Software without restriction, including
-- without limitation the rights to use, copy, modify, merge, publish,
-- distribute, sublicense, and/or sell copies of the Software, and to
-- permit persons to whom the Software is furnished to do so, subject to
-- the following conditions:
--
-- The above copyright notice and this permission notice shall be
-- included in all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

localtype, pairs, ipairs, io, os=type, pairs, ipairs, io, os

module ("alt_getopt")

localfunctionconvert_short2long (opts)
locali=1
locallen=#opts
localret= {}

forshort_opt, accept_arginopts:gmatch("(%w)(:?)") do
ret[short_opt]=#accept_arg
end

returnret
end

localfunctionexit_with_error (msg, exit_status)
io.stderr:write (msg)
os.exit (exit_status)
end

localfunctionerr_unknown_opt (opt)
exit_with_error ("Unknown option `-" ..
 (#opt>1and"-" or"") ..opt.."'\n", 1)
end

localfunctioncanonize (options, opt)
ifnotoptions [opt] then
err_unknown_opt (opt)
end

whiletype (options [opt]) =="string" do
opt=options [opt]

ifnotoptions [opt] then
err_unknown_opt (opt)
end
end

returnopt
end

functionget_ordered_opts (arg, sh_opts, long_opts)
locali=1
localcount=1
localopts= {}
localoptarg= {}

localoptions=convert_short2long (sh_opts)
fork,vinpairs (long_opts) do
options [k] =v
end

whilei<=#argdo
locala=arg [i]

ifa=="--" then
i=i+1
break

elseifa=="-" then
break

elseifa:sub (1, 2) =="--" then
localpos=a:find ("=", 1, true)

ifposthen
localopt=a:sub (3, pos-1)

opt=canonize (options, opt)

ifoptions [opt] ==0then
exit_with_error ("Bad usage of option `" ..a.."'\n", 1)
end

optarg [count] =a:sub (pos+1)
opts [count] =opt
else
localopt=a:sub (3)

opt=canonize (options, opt)

ifoptions [opt] ==0then
opts [count] =opt
else
ifi==#argthen
exit_with_error ("Missed value for option `" ..a.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
end
end
count=count+1

elseifa:sub (1, 1) =="-" then
localj
forj=2,a:len () do
localopt=canonize (options, a:sub (j, j))

ifoptions [opt] ==0then
opts [count] =opt
count=count+1
elseifa:len () ==jthen
ifi==#argthen
exit_with_error ("Missed value for option `-" ..opt.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
count=count+1
break
else
optarg [count] =a:sub (j+1)
opts [count] =opt
count=count+1
break
end
end
else
break
end

i=i+1
end

returnopts,i,optarg
end

functionget_opts (arg, sh_opts, long_opts)
localret= {}

localopts,optind,optarg=get_ordered_opts (arg, sh_opts, long_opts)
fori,vinipairs (opts) do
ifoptarg [i] then
ret [v] =optarg [i]
else
ret [v] =1
end
end

returnret,optind
end
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-- Copyright (c) 2009 Aleksey Cheusov <vle@gmx.net>
--
-- Permission is hereby granted, free of charge, to any person obtaining
-- a copy of this software and associated documentation files (the
-- "Software"), to deal in the Software without restriction, including
-- without limitation the rights to use, copy, modify, merge, publish,
-- distribute, sublicense, and/or sell copies of the Software, and to
-- permit persons to whom the Software is furnished to do so, subject to
-- the following conditions:
--
-- The above copyright notice and this permission notice shall be
-- included in all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

localtype, pairs, ipairs, io, os=type, pairs, ipairs, io, os

module ("alt_getopt")

localfunctionconvert_short2long (opts)
locali=1
locallen=#opts
localret= {}

forshort_opt, accept_arginopts:gmatch("(%w)(:?)") do
ret[short_opt]=#accept_arg
end

returnret
end

localfunctionexit_with_error (msg, exit_status)
io.stderr:write (msg)
os.exit (exit_status)
end

localfunctionerr_unknown_opt (opt)
exit_with_error ("Unknown option `-" ..
 (#opt>1and"-" or"") ..opt.."'\n", 1)
end

localfunctioncanonize (options, opt)
ifnotoptions [opt] then
err_unknown_opt (opt)
end

whiletype (options [opt]) =="string" do
opt=options [opt]

ifnotoptions [opt] then
err_unknown_opt (opt)
end
end

returnopt
end

functionget_ordered_opts (arg, sh_opts, long_opts)
locali=1
localcount=1
localopts= {}
localoptarg= {}

localoptions=convert_short2long (sh_opts)
fork,vinpairs (long_opts) do
options [k] =v
end

whilei<=#argdo
locala=arg [i]

ifa=="--" then
i=i+1
break

elseifa=="-" then
break

elseifa:sub (1, 2) =="--" then
localpos=a:find ("=", 1, true)

ifposthen
localopt=a:sub (3, pos-1)

opt=canonize (options, opt)

ifoptions [opt] ==0then
exit_with_error ("Bad usage of option `" ..a.."'\n", 1)
end

optarg [count] =a:sub (pos+1)
opts [count] =opt
else
localopt=a:sub (3)

opt=canonize (options, opt)

ifoptions [opt] ==0then
opts [count] =opt
else
ifi==#argthen
exit_with_error ("Missed value for option `" ..a.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
end
end
count=count+1

elseifa:sub (1, 1) =="-" then
localj
forj=2,a:len () do
localopt=canonize (options, a:sub (j, j))

ifoptions [opt] ==0then
opts [count] =opt
count=count+1
elseifa:len () ==jthen
ifi==#argthen
exit_with_error ("Missed value for option `-" ..opt.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
count=count+1
break
else
optarg [count] =a:sub (j+1)
opts [count] =opt
count=count+1
break
end
end
else
break
end

i=i+1
end

returnopts,i,optarg
end

functionget_opts (arg, sh_opts, long_opts)
localret= {}

localopts,optind,optarg=get_ordered_opts (arg, sh_opts, long_opts)
fori,vinipairs (opts) do
ifoptarg [i] then
ret [v] =optarg [i]
else
ret [v] =1
end
end

returnret,optind
end
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-- Copyright (c) 2009 Aleksey Cheusov <vle@gmx.net>
--
-- Permission is hereby granted, free of charge, to any person obtaining
-- a copy of this software and associated documentation files (the
-- "Software"), to deal in the Software without restriction, including
-- without limitation the rights to use, copy, modify, merge, publish,
-- distribute, sublicense, and/or sell copies of the Software, and to
-- permit persons to whom the Software is furnished to do so, subject to
-- the following conditions:
--
-- The above copyright notice and this permission notice shall be
-- included in all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

localtype, pairs, ipairs, io, os=type, pairs, ipairs, io, os

module ("alt_getopt")

localfunctionconvert_short2long (opts)
locali=1
locallen=#opts
localret= {}

forshort_opt, accept_arginopts:gmatch("(%w)(:?)") do
ret[short_opt]=#accept_arg
end

returnret
end

localfunctionexit_with_error (msg, exit_status)
io.stderr:write (msg)
os.exit (exit_status)
end

localfunctionerr_unknown_opt (opt)
exit_with_error ("Unknown option `-" ..
 (#opt>1and"-" or"") ..opt.."'\n", 1)
end

localfunctioncanonize (options, opt)
ifnotoptions [opt] then
err_unknown_opt (opt)
end

whiletype (options [opt]) =="string" do
opt=options [opt]

ifnotoptions [opt] then
err_unknown_opt (opt)
end
end

returnopt
end

functionget_ordered_opts (arg, sh_opts, long_opts)
locali=1
localcount=1
localopts= {}
localoptarg= {}

localoptions=convert_short2long (sh_opts)
fork,vinpairs (long_opts) do
options [k] =v
end

whilei<=#argdo
locala=arg [i]

ifa=="--" then
i=i+1
break

elseifa=="-" then
break

elseifa:sub (1, 2) =="--" then
localpos=a:find ("=", 1, true)

ifposthen
localopt=a:sub (3, pos-1)

opt=canonize (options, opt)

ifoptions [opt] ==0then
exit_with_error ("Bad usage of option `" ..a.."'\n", 1)
end

optarg [count] =a:sub (pos+1)
opts [count] =opt
else
localopt=a:sub (3)

opt=canonize (options, opt)

ifoptions [opt] ==0then
opts [count] =opt
else
ifi==#argthen
exit_with_error ("Missed value for option `" ..a.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
end
end
count=count+1

elseifa:sub (1, 1) =="-" then
localj
forj=2,a:len () do
localopt=canonize (options, a:sub (j, j))

ifoptions [opt] ==0then
opts [count] =opt
count=count+1
elseifa:len () ==jthen
ifi==#argthen
exit_with_error ("Missed value for option `-" ..opt.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
count=count+1
break
else
optarg [count] =a:sub (j+1)
opts [count] =opt
count=count+1
break
end
end
else
break
end

i=i+1
end

returnopts,i,optarg
end

functionget_opts (arg, sh_opts, long_opts)
localret= {}

localopts,optind,optarg=get_ordered_opts (arg, sh_opts, long_opts)
fori,vinipairs (opts) do
ifoptarg [i] then
ret [v] =optarg [i]
else
ret [v] =1
end
end

returnret,optind
end
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-- Copyright (c) 2009 Aleksey Cheusov <vle@gmx.net>
--
-- Permission is hereby granted, free of charge, to any person obtaining
-- a copy of this software and associated documentation files (the
-- "Software"), to deal in the Software without restriction, including
-- without limitation the rights to use, copy, modify, merge, publish,
-- distribute, sublicense, and/or sell copies of the Software, and to
-- permit persons to whom the Software is furnished to do so, subject to
-- the following conditions:
--
-- The above copyright notice and this permission notice shall be
-- included in all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

localtype, pairs, ipairs, io, os=type, pairs, ipairs, io, os

module ("alt_getopt")

localfunctionconvert_short2long (opts)
locali=1
locallen=#opts
localret= {}

forshort_opt, accept_arginopts:gmatch("(%w)(:?)") do
ret[short_opt]=#accept_arg
end

returnret
end

localfunctionexit_with_error (msg, exit_status)
io.stderr:write (msg)
os.exit (exit_status)
end

localfunctionerr_unknown_opt (opt)
exit_with_error ("Unknown option `-" ..
 (#opt>1and"-" or"") ..opt.."'\n", 1)
end

localfunctioncanonize (options, opt)
ifnotoptions [opt] then
err_unknown_opt (opt)
end

whiletype (options [opt]) =="string" do
opt=options [opt]

ifnotoptions [opt] then
err_unknown_opt (opt)
end
end

returnopt
end

functionget_ordered_opts (arg, sh_opts, long_opts)
locali=1
localcount=1
localopts= {}
localoptarg= {}

localoptions=convert_short2long (sh_opts)
fork,vinpairs (long_opts) do
options [k] =v
end

whilei<=#argdo
locala=arg [i]

ifa=="--" then
i=i+1
break

elseifa=="-" then
break

elseifa:sub (1, 2) =="--" then
localpos=a:find ("=", 1, true)

ifposthen
localopt=a:sub (3, pos-1)

opt=canonize (options, opt)

ifoptions [opt] ==0then
exit_with_error ("Bad usage of option `" ..a.."'\n", 1)
end

optarg [count] =a:sub (pos+1)
opts [count] =opt
else
localopt=a:sub (3)

opt=canonize (options, opt)

ifoptions [opt] ==0then
opts [count] =opt
else
ifi==#argthen
exit_with_error ("Missed value for option `" ..a.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
end
end
count=count+1

elseifa:sub (1, 1) =="-" then
localj
forj=2,a:len () do
localopt=canonize (options, a:sub (j, j))

ifoptions [opt] ==0then
opts [count] =opt
count=count+1
elseifa:len () ==jthen
ifi==#argthen
exit_with_error ("Missed value for option `-" ..opt.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
count=count+1
break
else
optarg [count] =a:sub (j+1)
opts [count] =opt
count=count+1
break
end
end
else
break
end

i=i+1
end

returnopts,i,optarg
end

functionget_opts (arg, sh_opts, long_opts)
localret= {}

localopts,optind,optarg=get_ordered_opts (arg, sh_opts, long_opts)
fori,vinipairs (opts) do
ifoptarg [i] then
ret [v] =optarg [i]
else
ret [v] =1
end
end

returnret,optind
end
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-- Copyright (c) 2009 Aleksey Cheusov <vle@gmx.net>
--
-- Permission is hereby granted, free of charge, to any person obtaining
-- a copy of this software and associated documentation files (the
-- "Software"), to deal in the Software without restriction, including
-- without limitation the rights to use, copy, modify, merge, publish,
-- distribute, sublicense, and/or sell copies of the Software, and to
-- permit persons to whom the Software is furnished to do so, subject to
-- the following conditions:
--
-- The above copyright notice and this permission notice shall be
-- included in all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

localtype, pairs, ipairs, io, os=type, pairs, ipairs, io, os

module ("alt_getopt")

localfunctionconvert_short2long (opts)
locali=1
locallen=#opts
localret= {}

forshort_opt, accept_arginopts:gmatch("(%w)(:?)") do
ret[short_opt]=#accept_arg
end

returnret
end

localfunctionexit_with_error (msg, exit_status)
io.stderr:write (msg)
os.exit (exit_status)
end

localfunctionerr_unknown_opt (opt)
exit_with_error ("Unknown option `-" ..
 (#opt>1and"-" or"") ..opt.."'\n", 1)
end

localfunctioncanonize (options, opt)
ifnotoptions [opt] then
err_unknown_opt (opt)
end

whiletype (options [opt]) =="string" do
opt=options [opt]

ifnotoptions [opt] then
err_unknown_opt (opt)
end
end

returnopt
end

functionget_ordered_opts (arg, sh_opts, long_opts)
locali=1
localcount=1
localopts= {}
localoptarg= {}

localoptions=convert_short2long (sh_opts)
fork,vinpairs (long_opts) do
options [k] =v
end

whilei<=#argdo
locala=arg [i]

ifa=="--" then
i=i+1
break

elseifa=="-" then
break

elseifa:sub (1, 2) =="--" then
localpos=a:find ("=", 1, true)

ifposthen
localopt=a:sub (3, pos-1)

opt=canonize (options, opt)

ifoptions [opt] ==0then
exit_with_error ("Bad usage of option `" ..a.."'\n", 1)
end

optarg [count] =a:sub (pos+1)
opts [count] =opt
else
localopt=a:sub (3)

opt=canonize (options, opt)

ifoptions [opt] ==0then
opts [count] =opt
else
ifi==#argthen
exit_with_error ("Missed value for option `" ..a.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
end
end
count=count+1

elseifa:sub (1, 1) =="-" then
localj
forj=2,a:len () do
localopt=canonize (options, a:sub (j, j))

ifoptions [opt] ==0then
opts [count] =opt
count=count+1
elseifa:len () ==jthen
ifi==#argthen
exit_with_error ("Missed value for option `-" ..opt.."'\n", 1)
end

optarg [count] =arg [i+1]
opts [count] =opt
i=i+1
count=count+1
break
else
optarg [count] =a:sub (j+1)
opts [count] =opt
count=count+1
break
end
end
else
break
end

i=i+1
end

returnopts,i,optarg
end

functionget_opts (arg, sh_opts, long_opts)
localret= {}

localopts,optind,optarg=get_ordered_opts (arg, sh_opts, long_opts)
fori,vinipairs (opts) do
ifoptarg [i] then
ret [v] =optarg [i]
else
ret [v] =1
end
end

returnret,optind
end