def parseOpts(argStrList):
"""
argStrList :: [str]
argument string list
return :: argparse.Namespace
"""
parser = argparse.ArgumentParser(
description="Map a function to a list of record from an input stream.")
pysows.setVersion(parser)
parser.add_argument('-g', '--groups', metavar='COLUMNS',
dest='group_indexes', default='1',
help=pysows.GROUPS_HELP_MESSAGE)
parser.add_argument('-f', '--mapfunc', metavar='FUNCTION',
dest='map_func', default='lambda *xs:xs',
help='Map function as python code.' + \
' This must return sequence of printable objects.' + \
" (default: 'lambda *xs:xs')")
parser.add_argument('-c', '--constructor', metavar='FUNCTION',
dest='record_constructor',
default='lambda xs,ys:list(xs)+list(ys)',
help='Record constructor.' + \
' This must return sequence of printable objects.' + \
" (default: 'lambda xs,ys:list(xs)+list(ys)')")
parser.add_argument('-l', '--load', metavar='FILE', dest='load_file',
default=None, help='Load python code for -f and -c.')
parser.add_argument("-s", "--separator", metavar='SEP',
dest="separator", default=None,
help="Record separator (default: spaces).")
return parser.parse_args(argStrList)
def parseOpts(args):
"""
args :: [str]
argument string list
return :: arpgarser.Namespace
"""
parser = argparse.ArgumentParser(
description="Sort a list of record as an input stream.")
pysows.setVersion(parser)
parser.add_argument("-g", "--groups", dest="group_indexes",
metavar='COLUMNS', default='0',
help=pysows.GROUPS_HELP_MESSAGE)
parser.add_argument("-k", "--keyfunc", dest="key_func",
metavar='FUNCTION', default="lambda *xs: xs",
help="Key function. (default: 'lambda *args: args')")
parser.add_argument("-c", "--cmpfunc", dest="cmp_func",
metavar='FUNCTION', default=None,
help="(Not supported yet) Compare function. -c is prior to -k option.")
parser.add_argument("-r", "--reverse", action="store_true", dest="reverse",
default=False,
help="Reverse the result of comprations.")
parser.add_argument("-l", "--load", dest="load_file", default=None,
help="Load python code for -k or -c.")
parser.add_argument("-s", "--separator", dest="separator",
metavar='SEP', default=None,
help="Column separator. (default: spaces)")
return parser.parse_args(args)
def parseOpts(argStrs):
"""
argStrs :: [str]
argument string list.
return :: argparse.Namespace
"""
parser = argparse.ArgumentParser(
description="Join two input streams." +
" Left input will be load to memory as hash index." +
" This tool provide inner join. Join key must be unique but need not be sorted.")
pysows.setVersion(parser)
parser.add_argument('-lk', metavar='COLUMNS', dest='left_key', default='1',
help='Left key columns like "1,2,3". (default: 1).')
parser.add_argument('-rk', metavar='COLUMNS', dest='right_key', default='1',
help='Right key columns like "1,2,3". (default: 1).')
parser.add_argument('-jk', metavar='COLUMNS', dest='join_key', default=None,
help='Both -lk and -rk.')
parser.add_argument('-oc', metavar='COLUMNS', dest='out_columns', default='l0,r0',
help='Output columns. prefix "l" means left input, ' +
'"r" means right input. (default: l0,r0)')
parser.add_argument('-li', metavar='INPUT', dest='left_input', default=None, required=True,
type=argparse.FileType('r'),
help='Left input stream. (required)')
parser.add_argument('-ri', metavar='INPUT', dest='right_input', default=sys.stdin,
type=argparse.FileType('r'),
help='Right input stream. (default: stdin)')
parser.add_argument("-s", "--separator", metavar='SEP', dest="separator", default=None,
help="Record separator (default: spaces).")
args = parser.parse_args(argStrs)
return args
def parseOpts(args):
"""
args :: [str]
argument string list
return :: argparse.Namespace
"""
parser = argparse.ArgumentParser(
description="Filter a list of record as an input stream.")
pysows.setVersion(parser)
parser.add_argument("-g", "--groups", dest="group_indexes",
metavar='COLUMNS', default='0',
help=pysows.GROUPS_HELP_MESSAGE)
parser.add_argument("-p", "--predicate", dest="predicate",
metavar='PREDICATE',
default='lambda *xs:True',
help="Predicate as python code." + \
" This must return bool value.")
parser.add_argument("-r", "--regex", dest="regex_list",
nargs='+', metavar='REGEX_PATTERN', default=None,
help="Regular expression." + \
" When both -p and -r options are specified, -r is used.")
parser.add_argument("-l", "--load", dest="load_file",
metavar='FILE', default=None,
help="Load python code for -p.")
parser.add_argument("-s", "--separator", dest="separator",
metavar='SEP', default=None,
help="Record separator. (default: spaces)")
parser.add_argument("-v", "--invert", action="store_true", dest="invert",
default=False,
help="Invert match like grep -v.")
return parser.parse_args(args)
def parseOpts(args):
"""
args :: [str]
Argument string list
return :: argparse.Namespace
"""
parser = argparse.ArgumentParser(
description="Project a record list as an input stream.")
pysows.setVersion(parser)
parser.add_argument("-g", "--groups", dest="group_indexes",
metavar='COLUMNS', default='0',
help="Column index list separated by comma. (default: 0)")
parser.add_argument("-s", "--separator", dest="separator",
metavar='SEP', default=None,
help="Record separator. (default spaces)")
return parser.parse_args(args)
