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Wrapper around the standard getopt module that provides the following
additional features:
* short and long options are tied together
* options have help strings, so fancy_getopt could potentially
create a complete usage summary
* options set attributes of a passed-in object
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d d d d Z d d Z d d d Z d d d d Z d S) FancyGetopta Wrapper around the standard 'getopt()' module that provides some
handy extra functionality:
* short and long options are tied together
* options have help strings, and help text can be assembled
from them
* options set attributes of a passed-in object
* boolean options can have "negative aliases" -- eg. if
--quiet is the "negative alias" of --verbose, then "--quiet"
on the command line sets 'verbose' to false
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zFancyGetopt.__init__c C s6 | j j x" | j D] } | | j | d <q Wd S)Nr )r clearr )r optionr r r r Q s
zFancyGetopt._build_indexc C s | | _ | j d S)N)r r )r r r r r set_option_tableV s z FancyGetopt.set_option_tablec C sR | | j k r" t d | n, | | | f } | j j | | | j | <d S)Nz'option conflict: already an option '%s')r DistutilsGetoptErrorr append)r long_optionZ short_optionZ help_stringr r r r
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in the option table.znegative aliasN)r# r
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d | | j | | j | <| r2 | j j | | | j | d <q2 Wd S)zPopulate the various data structures that keep tabs on the
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| | j j | | f q W| r| | f S| Sd S) a Parse command-line options in args. Store as attributes on object.
If 'args' is None or not supplied, uses 'sys.argv[1:]'. If
'object' is None or not supplied, creates a new OptionDummy
object, stores option values there, and returns a tuple (args,
object). If 'object' is supplied, it is modified in place and
'getopt()' just returns 'args'; in both cases, the returned
'args' is a modified copy of the passed-in 'args' list, which
is left untouched.
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zFancyGetopt.getoptc C s) | j d k r t d n | j Sd S)zReturns the list of (option, value) tuples processed by the
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Nz!'getopt()' hasn't been called yet)r RuntimeError)r r r r get_option_order s z FancyGetopt.get_option_orderc C s d } xs | j D]h } | d } | d } t | } | d d k rP | d } | d k rf | d } | | k r | } q W| d d d } d } | | } d | }
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| qWq W| S)zGenerate help text (a list of strings, one per suggested line of
output) from the option table for this FancyGetopt object.
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=Pq W| rX| d k r=| j | d d | | d | d | d <| d d d k rX| d =| j d j | qr W| S) zwrap_text(text : string, width : int) -> [string]
Split 'text' into multiple lines of no more than 'width' characters
each, and return the list of strings that results.
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changing "-" to "_".
)r r )r" r r r translate_longopt s rh c @ s% e Z d Z d Z g d d Z d S)r< z_Dummy class just used as a place to hold command-line option
values as instance attributes.c C s% x | D] } t | | d q Wd S)zkCreate a new OptionDummy instance. The attributes listed in
'options' will be initialized to None.N)rA )r r[ r" r r r r s
zOptionDummy.__init__N)rW rX rY rZ r r r r r r< s r< __main__zTra-la-la, supercalifragilisticexpialidocious.
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say, "How should I know?"].)
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