macresources/bin/SimpleRez

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#!/usr/bin/env python3
import argparse
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import macresources
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def parse_align(x):
msg = "%r is not 'word', 'longword' or whole number" % x
if x.lower() == 'word':
return 2
elif x.lower() == 'longword':
return 4
try:
y = int(x)
except ValueError:
raise argparse.ArgumentTypeError(msg)
if y < 1:
raise argparse.ArgumentTypeError(msg)
return y
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parser = argparse.ArgumentParser(description='''
Compile legacy Mac resources from a subset of the Rez language. Only
data blocks and $"<hex>" lines are supported. No attempt is made to
output to the native Mac resource fork, but this can be worked
around by appending `/..namedfork/rsrc' to the name of an existing
output file.
''')
parser.add_argument('rezFile', nargs='+', help='resource description files')
parser.add_argument('-o', metavar='outputFile', default='Rez.out', help='default: Rez.out')
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parser.add_argument('-align', metavar='word | longword | n', action='store', type=parse_align, default=1)
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parser.add_argument('-useDF', action='store_true', help='ignored: data fork is always used')
args = parser.parse_args()
resources = []
for in_path in args.rezFile:
with open(in_path, 'rb') as f:
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resources.extend(macresources.parse_rez_code(f.read()))
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with open(args.o, 'wb') as f:
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f.write(macresources.make_file(resources, align=args.align))