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| author | Ben Reynwar <ben@reynwar.net> | 2013-04-02 23:04:08 -0700 |
|---|---|---|
| committer | Ben Reynwar <ben@reynwar.net> | 2013-04-02 23:04:08 -0700 |
| commit | c6dbde23b256a41b3d92cb4ad6b63287095d53c7 (patch) | |
| tree | 71db12ea2e1667770c22568dcdf5e0857d5f1e59 /gnuradio-runtime/python/gnuradio/eng_option.py | |
| parent | 22b70d0889ef3c51e27a31ee18d153093a55cbb8 (diff) | |
| parent | 98758cbfa9a2aff714952d19e773bc370dfa2185 (diff) | |
Merged next into uninstalled import branch.
Diffstat (limited to 'gnuradio-runtime/python/gnuradio/eng_option.py')
| -rw-r--r-- | gnuradio-runtime/python/gnuradio/eng_option.py | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/gnuradio-runtime/python/gnuradio/eng_option.py b/gnuradio-runtime/python/gnuradio/eng_option.py new file mode 100644 index 0000000000..5d8660f0f2 --- /dev/null +++ b/gnuradio-runtime/python/gnuradio/eng_option.py @@ -0,0 +1,63 @@ +# +# Copyright 2004 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +'''Add support for engineering notation to optparse.OptionParser''' + +from copy import copy +from optparse import Option, OptionValueError +import eng_notation + +def check_eng_float (option, opt, value): + try: + return eng_notation.str_to_num(value) + except: + raise OptionValueError ( + "option %s: invalid engineering notation value: %r" % (opt, value)) + +def check_intx (option, opt, value): + try: + return int (value, 0) + except: + raise OptionValueError ( + "option %s: invalid integer value: %r" % (opt, value)) + +def check_subdev (option, opt, value): + """ + Value has the form: (A|B)(:0|1)? + + Returns: + a 2-tuple (0|1, 0|1) + """ + d = { 'A' : (0, 0), 'A:0' : (0, 0), 'A:1' : (0, 1), 'A:2' : (0, 2), + 'B' : (1, 0), 'B:0' : (1, 0), 'B:1' : (1, 1), 'B:2' : (1, 2) } + try: + return d[value.upper()] + except: + raise OptionValueError( + "option %s: invalid subdev: '%r', must be one of %s" % (opt, value, ', '.join(sorted(d.keys())))) + +class eng_option (Option): + TYPES = Option.TYPES + ("eng_float", "intx", "subdev") + TYPE_CHECKER = copy (Option.TYPE_CHECKER) + TYPE_CHECKER["eng_float"] = check_eng_float + TYPE_CHECKER["intx"] = check_intx + TYPE_CHECKER["subdev"] = check_subdev + |