Translate #define's into Python assignments，,'''PYTHON SO

Translate #define's into Python assignments，,'''PYTHON SO

'''PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2--------------------------------------------1. This LICENSE AGREEMENT is between the Python Software Foundation('PSF'), and the Individual or Organization ('Licensee') accessing andotherwise using this software ('Python') in source or binary form andits associated documentation.2. Subject to the terms and conditions of this License Agreement, PSFhereby grants Licensee a nonexclusive, royalty-free, world-widelicense to reproduce, analyze, test, perform and/or display publicly,prepare derivative works, distribute, and otherwise use Pythonalone or in any derivative version, provided, however, that PSF'sLicense Agreement and PSF's notice of copyright, i.e., 'Copyright (c)2001, 2002, 2003, 2004 Python Software Foundation; All Rights Reserved'are retained in Python alone or in any derivative version preparedby Licensee.3. In the event Licensee prepares a derivative work that is based onor incorporates Python or any part thereof, and wants to makethe derivative work available to others as provided herein, thenLicensee hereby agrees to include in any such work a brief summary ofthe changes made to Python.4. PSF is making Python available to Licensee on an 'AS IS'basis.  PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS ORIMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO ANDDISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESSFOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOTINFRINGE ANY THIRD PARTY RIGHTS.5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHONFOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS ASA RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.6. This License Agreement will automatically terminate upon a materialbreach of its terms and conditions.7. Nothing in this License Agreement shall be deemed to create anyrelationship of agency, partnership, or joint venture between PSF andLicensee.  This License Agreement does not grant permission to use PSFtrademarks or trade name in a trademark sense to endorse or promoteproducts or services of Licensee, or any third party.8. By copying, installing or otherwise using Python, Licenseeagrees to be bound by the terms and conditions of this LicenseAgreement.'''#! /usr/bin/env python# Read #define's and translate to Python code.# Handle #include statements.# Handle #define macros with one argument.# Anything that isn't recognized or doesn't translate into valid# Python is ignored.# Without filename arguments, acts as a filter.# If one or more filenames are given, output is written to corresponding# filenames in the local directory, translated to all uppercase, with# the extension replaced by '.py'.# By passing one or more options of the form '-i regular_expression'# you can specify additional strings to be ignored.  This is useful# e.g. to ignore casts to u_long: simply specify '-i '(u_long)''.# XXX To do:# - turn trailing C comments into Python comments# - turn C Boolean operators '&& || !' into Python 'and or not'# - what to do about #if(def)?# - what to do about macros with multiple parameters?import sys, re, getopt, osp_define = re.compile('^[\t ]*#[\t ]*define[\t ]+([a-zA-Z0-9_]+)[\t ]+')p_macro = re.compile(  '^[\t ]*#[\t ]*define[\t ]+'  '([a-zA-Z0-9_]+)\(([_a-zA-Z][_a-zA-Z0-9]*)\)[\t ]+')p_include = re.compile('^[\t ]*#[\t ]*include[\t ]+<([a-zA-Z0-9_/\.]+)')p_comment = re.compile(r'/\*([^*]+|\*+[^/])*(\*+/)?')p_cpp_comment = re.compile('//.*')ignores = [p_comment, p_cpp_comment]p_char = re.compile(r''(\\.[^\\]*|[^\\])'')p_hex = re.compile(r'0x([0-9a-fA-F]+)L?')filedict = {}importable = {}try:    searchdirs=os.environ['include'].split(';')except KeyError:    try:        searchdirs=os.environ['INCLUDE'].split(';')    except KeyError:        try:            if  sys.platform.find('beos') == 0:                searchdirs=os.environ['BEINCLUDES'].split(';')            elif sys.platform.startswith('atheos'):                searchdirs=os.environ['C_INCLUDE_PATH'].split(':')            else:                raise KeyError        except KeyError:            searchdirs=['/usr/include']def main():    global filedict    opts, args = getopt.getopt(sys.argv[1:], 'i:')    for o, a in opts:        if o == '-i':            ignores.append(re.compile(a))    if not args:        args = ['-']    for filename in args:        if filename == '-':            sys.stdout.write('# Generated by h2py from stdin\n')            process(sys.stdin, sys.stdout)        else:            fp = open(filename, 'r')            outfile = os.path.basename(filename)            i = outfile.rfind('.')            if i > 0: outfile = outfile[:i]            modname = outfile.upper()            outfile = modname + '.py'            outfp = open(outfile, 'w')            outfp.write('# Generated by h2py from %s\n' % filename)            filedict = {}            for dir in searchdirs:                if filename[:len(dir)] == dir:                    filedict[filename[len(dir)+1:]] = None  # no '/' trailing                    importable[filename[len(dir)+1:]] = modname                    break            process(fp, outfp)            outfp.close()            fp.close()def pytify(body):    # replace ignored patterns by spaces    for p in ignores:        body = p.sub(' ', body)    # replace char literals by ord(...)    body = p_char.sub('ord(\\0)', body)    # Compute negative hexadecimal constants    start = 0    UMAX = 2*(sys.maxint+1)    while 1:        m = p_hex.search(body, start)        if not m: break        s,e = m.span()        val = long(body[slice(*m.span(1))], 16)        if val > sys.maxint:            val -= UMAX            body = body[:s] + '(' + str(val) + ')' + body[e:]        start = s + 1    return bodydef process(fp, outfp, env = {}):    lineno = 0    while 1:        line = fp.readline()        if not line: break        lineno = lineno + 1        match = p_define.match(line)        if match:            # gobble up continuation lines            while line[-2:] == '\\\n':                nextline = fp.readline()                if not nextline: break                lineno = lineno + 1                line = line + nextline            name = match.group(1)            body = line[match.end():]            body = pytify(body)            ok = 0            stmt = '%s = %s\n' % (name, body.strip())            try:                exec stmt in env            except:                sys.stderr.write('Skipping: %s' % stmt)            else:                outfp.write(stmt)        match = p_macro.match(line)        if match:            macro, arg = match.group(1, 2)            body = line[match.end():]            body = pytify(body)            stmt = 'def %s(%s): return %s\n' % (macro, arg, body)            try:                exec stmt in env            except:                sys.stderr.write('Skipping: %s' % stmt)            else:                outfp.write(stmt)        match = p_include.match(line)        if match:            regs = match.regs            a, b = regs[1]            filename = line[a:b]            if importable.has_key(filename):                outfp.write('from %s import *\n' % importable[filename])            elif not filedict.has_key(filename):                filedict[filename] = None                inclfp = None                for dir in searchdirs:                    try:                        inclfp = open(dir + '/' + filename)                        break                    except IOError:                        pass                if inclfp:                    outfp.write(                            '\n# Included from %s\n' % filename)                    process(inclfp, outfp, env)                else:                    sys.stderr.write('Warning - could not find file %s\n' %                                     filename)if __name__ == '__main__':    main()