Mac/Modules/scrap/scrapsupport.py

   1 # This script generates a Python interface for an Apple Macintosh Manager.
   2 # It uses the "bgen" package to generate C code.
   3 # The function specifications are generated by scanning the mamager's header file,
   4 # using the "scantools" package (customized for this particular manager).
   5
   6 # NOTE: the scrap include file is so bad that the bgen output has to be
   7 # massaged by hand.
   8
   9 import string
  10
  11 # Declarations that change for each manager
  12 MACHEADERFILE = 'Scrap.h'               # The Apple header file
  13 MODNAME = 'Scrap'                               # The name of the module
  14
  15 # The following is *usually* unchanged but may still require tuning
  16 MODPREFIX = MODNAME                     # The prefix for module-wide routines
  17 INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
  18 OUTPUTFILE = '@' + MODNAME + "module.c" # The file generated by this program
  19
  20 from macsupport import *
  21
  22 # Create the type objects
  23
  24 includestuff = includestuff + """
  25 #include <%s>""" % MACHEADERFILE + """
  26
  27 /*
  28 ** Generate ScrapInfo records
  29 */
  30 PyObject *SCRRec_New(itself)
  31         ScrapStuff *itself;
  32 {
  33
  34         return Py_BuildValue("lO&hhO&", itself->scrapSize,
  35                 ResObj_New, itself->scrapHandle, itself->scrapCount, itself->scrapState,
  36                 PyMac_BuildStr255, itself->scrapName;
  37 }
  38 """
  39
  40 ScrapStuffPtr = OpaqueType('ScrapStuff', 'SCRRec')
  41 putscrapbuffer = FixedInputBufferType('void *')
  42
  43 # Create the generator groups and link them
  44 module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
  45
  46 # Create the generator classes used to populate the lists
  47 Function = OSErrFunctionGenerator
  48
  49 # Create and populate the lists
  50 functions = []
  51 execfile(INPUTFILE)
  52
  53 # add the populated lists to the generator groups
  54 # (in a different wordl the scan program would generate this)
  55 for f in functions: module.add(f)
  56
  57 # generate output (open the output file as late as possible)
  58 SetOutputFileName(OUTPUTFILE)
  59 module.generate()
  60