| 1 | n/a | # Parse Makefiles and Python Setup(.in) files. | 
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| 2 | n/a |  | 
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| 3 | n/a | import re | 
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| 4 | n/a |  | 
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| 5 | n/a |  | 
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| 6 | n/a | # Extract variable definitions from a Makefile. | 
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| 7 | n/a | # Return a dictionary mapping names to values. | 
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| 8 | n/a | # May raise IOError. | 
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| 9 | n/a |  | 
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| 10 | n/a | makevardef = re.compile('^([a-zA-Z0-9_]+)[ \t]*=(.*)') | 
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| 11 | n/a |  | 
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| 12 | n/a | def getmakevars(filename): | 
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| 13 | n/a | variables = {} | 
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| 14 | n/a | fp = open(filename) | 
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| 15 | n/a | pendingline = "" | 
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| 16 | n/a | try: | 
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| 17 | n/a | while 1: | 
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| 18 | n/a | line = fp.readline() | 
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| 19 | n/a | if pendingline: | 
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| 20 | n/a | line = pendingline + line | 
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| 21 | n/a | pendingline = "" | 
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| 22 | n/a | if not line: | 
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| 23 | n/a | break | 
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| 24 | n/a | if line.endswith('\\\n'): | 
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| 25 | n/a | pendingline = line[:-2] | 
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| 26 | n/a | matchobj = makevardef.match(line) | 
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| 27 | n/a | if not matchobj: | 
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| 28 | n/a | continue | 
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| 29 | n/a | (name, value) = matchobj.group(1, 2) | 
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| 30 | n/a | # Strip trailing comment | 
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| 31 | n/a | i = value.find('#') | 
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| 32 | n/a | if i >= 0: | 
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| 33 | n/a | value = value[:i] | 
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| 34 | n/a | value = value.strip() | 
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| 35 | n/a | variables[name] = value | 
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| 36 | n/a | finally: | 
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| 37 | n/a | fp.close() | 
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| 38 | n/a | return variables | 
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| 39 | n/a |  | 
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| 40 | n/a |  | 
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| 41 | n/a | # Parse a Python Setup(.in) file. | 
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| 42 | n/a | # Return two dictionaries, the first mapping modules to their | 
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| 43 | n/a | # definitions, the second mapping variable names to their values. | 
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| 44 | n/a | # May raise IOError. | 
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| 45 | n/a |  | 
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| 46 | n/a | setupvardef = re.compile('^([a-zA-Z0-9_]+)=(.*)') | 
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| 47 | n/a |  | 
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| 48 | n/a | def getsetupinfo(filename): | 
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| 49 | n/a | modules = {} | 
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| 50 | n/a | variables = {} | 
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| 51 | n/a | fp = open(filename) | 
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| 52 | n/a | pendingline = "" | 
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| 53 | n/a | try: | 
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| 54 | n/a | while 1: | 
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| 55 | n/a | line = fp.readline() | 
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| 56 | n/a | if pendingline: | 
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| 57 | n/a | line = pendingline + line | 
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| 58 | n/a | pendingline = "" | 
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| 59 | n/a | if not line: | 
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| 60 | n/a | break | 
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| 61 | n/a | # Strip comments | 
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| 62 | n/a | i = line.find('#') | 
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| 63 | n/a | if i >= 0: | 
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| 64 | n/a | line = line[:i] | 
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| 65 | n/a | if line.endswith('\\\n'): | 
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| 66 | n/a | pendingline = line[:-2] | 
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| 67 | n/a | continue | 
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| 68 | n/a | matchobj = setupvardef.match(line) | 
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| 69 | n/a | if matchobj: | 
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| 70 | n/a | (name, value) = matchobj.group(1, 2) | 
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| 71 | n/a | variables[name] = value.strip() | 
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| 72 | n/a | else: | 
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| 73 | n/a | words = line.split() | 
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| 74 | n/a | if words: | 
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| 75 | n/a | modules[words[0]] = words[1:] | 
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| 76 | n/a | finally: | 
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| 77 | n/a | fp.close() | 
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| 78 | n/a | return modules, variables | 
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| 79 | n/a |  | 
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| 80 | n/a |  | 
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| 81 | n/a | # Test the above functions. | 
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| 82 | n/a |  | 
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| 83 | n/a | def test(): | 
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| 84 | n/a | import sys | 
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| 85 | n/a | import os | 
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| 86 | n/a | if not sys.argv[1:]: | 
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| 87 | n/a | print('usage: python parsesetup.py Makefile*|Setup* ...') | 
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| 88 | n/a | sys.exit(2) | 
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| 89 | n/a | for arg in sys.argv[1:]: | 
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| 90 | n/a | base = os.path.basename(arg) | 
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| 91 | n/a | if base[:8] == 'Makefile': | 
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| 92 | n/a | print('Make style parsing:', arg) | 
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| 93 | n/a | v = getmakevars(arg) | 
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| 94 | n/a | prdict(v) | 
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| 95 | n/a | elif base[:5] == 'Setup': | 
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| 96 | n/a | print('Setup style parsing:', arg) | 
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| 97 | n/a | m, v = getsetupinfo(arg) | 
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| 98 | n/a | prdict(m) | 
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| 99 | n/a | prdict(v) | 
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| 100 | n/a | else: | 
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| 101 | n/a | print(arg, 'is neither a Makefile nor a Setup file') | 
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| 102 | n/a | print('(name must begin with "Makefile" or "Setup")') | 
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| 103 | n/a |  | 
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| 104 | n/a | def prdict(d): | 
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| 105 | n/a | keys = sorted(d.keys()) | 
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| 106 | n/a | for key in keys: | 
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| 107 | n/a | value = d[key] | 
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| 108 | n/a | print("%-15s" % key, str(value)) | 
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| 109 | n/a |  | 
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| 110 | n/a | if __name__ == '__main__': | 
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| 111 | n/a | test() | 
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