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49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
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#! /usr/local/python
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# Wrapper around Python to emulate the Perl -ae options:
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# (1) first argument is a Python command
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# (2) rest of arguments are input to the command in an implied loop
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# (3) each line is put into the string L with trailing '\n' stripped
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# (4) the fields of the line are put in the list F
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# (5) also: FILE: full filename; LINE: full line; FP: open file object
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# The command line option "-f FS" sets the field separator;
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# this is available to the program as FS.
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import sys
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import string
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import getopt
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FS = ''
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optlist, args = getopt.getopt(sys.argv[1:], 'f:')
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for option, optarg in optlist:
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if option == '-f': FS = optarg
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command = args[0]
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if not args[1:]: args.append('-')
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prologue = [ \
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'for FILE in args[1:]:', \
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'\tif FILE == \'-\':', \
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'\t\tFP = sys.stdin', \
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'\telse:', \
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'\t\tFP = open(FILE, \'r\')', \
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'\twhile 1:', \
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'\t\tLINE = FP.readline()', \
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'\t\tif not LINE: break', \
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'\t\tL = LINE[:-1]', \
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'\t\tif FS: F = string.splitfields(L, FS)', \
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'\t\telse: F = string.split(L)' \
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]
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# Note that we indent using tabs only, so that any indentation style
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# used in 'command' will come out right after re-indentation.
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program = string.joinfields(prologue, '\n')
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for line in string.splitfields(command, '\n'):
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program = program + ('\n\t\t' + line)
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program = program + '\n'
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exec(program)
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