""" gensuitemodule - Generate an AE suite module from an aete/aeut resource Based on aete.py. Reading and understanding this code is left as an exercise to the reader. """ import MacOS import os import string import sys import types import StringIO import macfs from Res import * def main(): fss, ok = macfs.PromptGetFile('Select file with aeut/aete resource:') if not ok: sys.exit(0) processfile(fss.as_pathname()) def processfile(fullname): """Process all resources in a single file""" cur = CurResFile() print fullname rf = OpenRFPerm(fullname, 0, 1) try: UseResFile(rf) resources = [] for i in range(Count1Resources('aete')): res = Get1IndResource('aete', 1+i) resources.append(res) for i in range(Count1Resources('aeut')): res = Get1IndResource('aeut', 1+i) resources.append(res) print "\nLISTING aete+aeut RESOURCES IN", `fullname` aetelist = [] for res in resources: print "decoding", res.GetResInfo(), "..." data = res.data aete = decode(data) aetelist.append((aete, res.GetResInfo())) finally: if rf <> cur: CloseResFile(rf) UseResFile(cur) # switch back (needed for dialogs in Python) UseResFile(cur) compileaetelist(aetelist, fullname) def compileaetelist(aetelist, fullname): for aete, resinfo in aetelist: compileaete(aete, resinfo, fullname) def decode(data): """Decode a resource into a python data structure""" f = StringIO.StringIO(data) aete = generic(getaete, f) aete = simplify(aete) processed = f.tell() unprocessed = len(f.read()) total = f.tell() if unprocessed: sys.stderr.write("%d processed + %d unprocessed = %d total\n" % (processed, unprocessed, total)) return aete def simplify(item): """Recursively replace singleton tuples by their constituent item""" if type(item) is types.ListType: return map(simplify, item) elif type(item) == types.TupleType and len(item) == 2: return simplify(item[1]) else: return item # Here follows the aete resource decoder. # It is presented bottom-up instead of top-down because there are direct # references to the lower-level part-decoders from the high-level part-decoders. def getbyte(f, *args): c = f.read(1) if not c: raise EOFError, 'in getbyte' + str(args) return ord(c) def getword(f, *args): getalign(f) s = f.read(2) if len(s) < 2: raise EOFError, 'in getword' + str(args) return (ord(s[0])<<8) | ord(s[1]) def getlong(f, *args): getalign(f) s = f.read(4) if len(s) < 4: raise EOFError, 'in getlong' + str(args) return (ord(s[0])<<24) | (ord(s[1])<<16) | (ord(s[2])<<8) | ord(s[3]) def getostype(f, *args): getalign(f) s = f.read(4) if len(s) < 4: raise EOFError, 'in getostype' + str(args) return s def getpstr(f, *args): c = f.read(1) if len(c) < 1: raise EOFError, 'in getpstr[1]' + str(args) nbytes = ord(c) if nbytes == 0: return '' s = f.read(nbytes) if len(s) < nbytes: raise EOFError, 'in getpstr[2]' + str(args) return s def getalign(f): if f.tell() & 1: c = f.read(1) ##if c <> '\0': ## print 'align:', `c` def getlist(f, description, getitem): count = getword(f) list = [] for i in range(count): list.append(generic(getitem, f)) getalign(f) return list def alt_generic(what, f, *args): print "generic", `what`, args res = vageneric(what, f, args) print '->', `res` return res def generic(what, f, *args): if type(what) == types.FunctionType: return apply(what, (f,) + args) if type(what) == types.ListType: record = [] for thing in what: item = apply(generic, thing[:1] + (f,) + thing[1:]) record.append((thing[1], item)) return record return "BAD GENERIC ARGS: %s" % `what` getdata = [ (getostype, "type"), (getpstr, "description"), (getword, "flags") ] getargument = [ (getpstr, "name"), (getostype, "keyword"), (getdata, "what") ] getevent = [ (getpstr, "name"), (getpstr, "description"), (getostype, "suite code"), (getostype, "event code"), (getdata, "returns"), (getdata, "accepts"), (getlist, "optional arguments", getargument) ] getproperty = [ (getpstr, "name"), (getostype, "code"), (getdata, "what") ] getelement = [ (getostype, "type"), (getlist, "keyform", getostype) ] getclass = [ (getpstr, "name"), (getostype, "class code"), (getpstr, "description"), (getlist, "properties", getproperty), (getlist, "elements", getelement) ] getcomparison = [ (getpstr, "operator name"), (getostype, "operator ID"), (getpstr, "operator comment"), ] getenumerator = [ (getpstr, "enumerator name"), (getostype, "enumerator ID"), (getpstr, "enumerator comment") ] getenumeration = [ (getostype, "enumeration ID"), (getlist, "enumerator", getenumerator) ] getsuite = [ (getpstr, "suite name"), (getpstr, "suite description"), (getostype, "suite ID"), (getword, "suite level"), (getword, "suite version"), (getlist, "events", getevent), (getlist, "classes", getclass), (getlist, "comparisons", getcomparison), (getlist, "enumerations", getenumeration) ] getaete = [ (getword, "major/minor version in BCD"), (getword, "language code"), (getword, "script code"), (getlist, "suites", getsuite) ] def compileaete(aete, resinfo, fname): """Generate code for a full aete resource. fname passed for doc purposes""" [version, language, script, suites] = aete major, minor = divmod(version, 256) fss = macfs.FSSpec(fname) creatorsignature, dummy = fss.GetCreatorType() packagename = identify(os.path.basename(fname)) if language: packagename = packagename+'_lang%d'%language if script: packagename = packagename+'_script%d'%script if len(packagename) > 27: packagename = packagename[:27] macfs.SetFolder(os.path.join(sys.prefix, ':Mac:Lib:lib-scriptpackages')) fss, ok = macfs.GetDirectory('Package folder for %s'%packagename) if not ok: return pathname = fss.as_pathname() packagename = os.path.split(os.path.normpath(pathname))[1] fss, ok = macfs.GetDirectory('Package folder for base suite (usually StdSuites)') if ok: dirname, basepkgname = os.path.split(os.path.normpath(fss.as_pathname())) if not dirname in sys.path: sys.path.insert(0, dirname) basepackage = __import__(basepkgname) else: basepackage = None macfs.SetFolder(pathname) suitelist = [] allprecompinfo = [] allsuites = [] for suite in suites: code, suite, fss, modname, precompinfo = precompilesuite(suite, basepackage) if not code: continue allprecompinfo = allprecompinfo + precompinfo suiteinfo = suite, fss, modname suitelist.append((code, modname)) allsuites.append(suiteinfo) for suiteinfo in allsuites: compilesuite(suiteinfo, major, minor, language, script, fname, basepackage, allprecompinfo) fss, ok = macfs.StandardPutFile('Package module', '__init__.py') if not ok: return fp = open(fss.as_pathname(), 'w') fss.SetCreatorType('Pyth', 'TEXT') fp.write('"""\n') fp.write("Package generated from %s\n"%fname) fp.write("Resource %s resid %d %s\n"%(resinfo[1], resinfo[0], resinfo[2])) fp.write('"""\n') fp.write('import aetools\n') fp.write('Error = aetools.Error\n') for code, modname in suitelist: fp.write("import %s\n" % modname) fp.write("\n\n_code_to_module = {\n") for code, modname in suitelist: fp.write("\t'%s' : %s,\n"%(code, modname)) fp.write("}\n\n") fp.write("\n\n_code_to_fullname = {\n") for code, modname in suitelist: fp.write("\t'%s' : ('%s.%s', '%s'),\n"%(code, packagename, modname, modname)) fp.write("}\n\n") for code, modname in suitelist: fp.write("from %s import *\n"%modname) if suitelist: fp.write("\n\nclass %s(%s_Events"%(packagename, suitelist[0][1])) for code, modname in suitelist[1:]: fp.write(",\n\t\t%s_Events"%modname) fp.write(",\n\t\taetools.TalkTo):\n") fp.write("\t_signature = '%s'\n\n"%creatorsignature) fp.close() def precompilesuite(suite, basepackage=None): """Parse a single suite without generating the output. This step is needed so we can resolve recursive references by suites to enums/comps/etc declared in other suites""" [name, desc, code, level, version, events, classes, comps, enums] = suite modname = identify(name) if len(modname) > 28: modname = modname[:27] fss, ok = macfs.StandardPutFile('Python output file', modname+'.py') if not ok: return None, None, None, None, None pathname = fss.as_pathname() modname = os.path.splitext(os.path.split(pathname)[1])[0] if basepackage and basepackage._code_to_module.has_key(code): # We are an extension of a baseclass (usually an application extending # Standard_Suite or so). Import everything from our base module basemodule = basepackage._code_to_module[code] else: # We are not an extension. basemodule = None enumsneeded = {} for event in events: findenumsinevent(event, enumsneeded) objc = ObjectCompiler(None, basemodule) for cls in classes: objc.compileclass(cls) for cls in classes: objc.fillclasspropsandelems(cls) for comp in comps: objc.compilecomparison(comp) for enum in enums: objc.compileenumeration(enum) for enum in enumsneeded.keys(): objc.checkforenum(enum) objc.dumpindex() precompinfo = objc.getprecompinfo(modname) return code, suite, fss, modname, precompinfo def compilesuite((suite, fss, modname), major, minor, language, script, fname, basepackage, precompinfo): """Generate code for a single suite""" [name, desc, code, level, version, events, classes, comps, enums] = suite pathname = fss.as_pathname() fp = open(fss.as_pathname(), 'w') fss.SetCreatorType('Pyth', 'TEXT') fp.write('"""Suite %s: %s\n' % (name, desc)) fp.write("Level %d, version %d\n\n" % (level, version)) fp.write("Generated from %s\n"%fname) fp.write("AETE/AEUT resource version %d/%d, language %d, script %d\n" % \ (major, minor, language, script)) fp.write('"""\n\n') fp.write('import aetools\n') fp.write('import MacOS\n\n') fp.write("_code = %s\n\n"% `code`) if basepackage and basepackage._code_to_module.has_key(code): # We are an extension of a baseclass (usually an application extending # Standard_Suite or so). Import everything from our base module fp.write('from %s import *\n'%basepackage._code_to_fullname[code][0]) basemodule = basepackage._code_to_module[code] else: # We are not an extension. basemodule = None compileclassheader(fp, modname, basemodule) enumsneeded = {} if events: for event in events: compileevent(fp, event, enumsneeded) else: fp.write("\tpass\n\n") objc = ObjectCompiler(fp, basemodule, precompinfo) for cls in classes: objc.compileclass(cls) for cls in classes: objc.fillclasspropsandelems(cls) for comp in comps: objc.compilecomparison(comp) for enum in enums: objc.compileenumeration(enum) for enum in enumsneeded.keys(): objc.checkforenum(enum) objc.dumpindex() return code, modname def compileclassheader(fp, name, module=None): """Generate class boilerplate""" classname = '%s_Events'%name if module: modshortname = string.split(module.__name__, '.')[-1] baseclassname = '%s_Events'%modshortname fp.write("class %s(%s):\n\n"%(classname, baseclassname)) else: fp.write("class %s:\n\n"%classname) def compileevent(fp, event, enumsneeded): """Generate code for a single event""" [name, desc, code, subcode, returns, accepts, arguments] = event funcname = identify(name) # # generate name->keyword map # if arguments: fp.write("\t_argmap_%s = {\n"%funcname) for a in arguments: fp.write("\t\t%s : %s,\n"%(`identify(a[0])`, `a[1]`)) fp.write("\t}\n\n") # # Generate function header # has_arg = (not is_null(accepts)) opt_arg = (has_arg and is_optional(accepts)) fp.write("\tdef %s(self, "%funcname) if has_arg: if not opt_arg: fp.write("_object, ") # Include direct object, if it has one else: fp.write("_object=None, ") # Also include if it is optional else: fp.write("_no_object=None, ") # For argument checking fp.write("_attributes={}, **_arguments):\n") # include attribute dict and args # # Generate doc string (important, since it may be the only # available documentation, due to our name-remaping) # fp.write('\t\t"""%s: %s\n'%(name, desc)) if has_arg: fp.write("\t\tRequired argument: %s\n"%getdatadoc(accepts)) elif opt_arg: fp.write("\t\tOptional argument: %s\n"%getdatadoc(accepts)) for arg in arguments: fp.write("\t\tKeyword argument %s: %s\n"%(identify(arg[0]), getdatadoc(arg[2]))) fp.write("\t\tKeyword argument _attributes: AppleEvent attribute dictionary\n") if not is_null(returns): fp.write("\t\tReturns: %s\n"%getdatadoc(returns)) fp.write('\t\t"""\n') # # Fiddle the args so everything ends up in 'arguments' dictionary # fp.write("\t\t_code = %s\n"% `code`) fp.write("\t\t_subcode = %s\n\n"% `subcode`) # # Do keyword name substitution # if arguments: fp.write("\t\taetools.keysubst(_arguments, self._argmap_%s)\n"%funcname) else: fp.write("\t\tif _arguments: raise TypeError, 'No optional args expected'\n") # # Stuff required arg (if there is one) into arguments # if has_arg: fp.write("\t\t_arguments['----'] = _object\n") elif opt_arg: fp.write("\t\tif _object:\n") fp.write("\t\t\t_arguments['----'] = _object\n") else: fp.write("\t\tif _no_object != None: raise TypeError, 'No direct arg expected'\n") fp.write("\n") # # Do enum-name substitution # for a in arguments: if is_enum(a[2]): kname = a[1] ename = a[2][0] if ename <> '****': fp.write("\t\taetools.enumsubst(_arguments, %s, _Enum_%s)\n" % (`kname`, identify(ename))) enumsneeded[ename] = 1 fp.write("\n") # # Do the transaction # fp.write("\t\t_reply, _arguments, _attributes = self.send(_code, _subcode,\n") fp.write("\t\t\t\t_arguments, _attributes)\n") # # Error handling # fp.write("\t\tif _arguments.has_key('errn'):\n") fp.write("\t\t\traise aetools.Error, aetools.decodeerror(_arguments)\n") fp.write("\t\t# XXXX Optionally decode result\n") # # Decode result # fp.write("\t\tif _arguments.has_key('----'):\n") if is_enum(returns): fp.write("\t\t\t# XXXX Should do enum remapping here...\n") fp.write("\t\t\treturn _arguments['----']\n") fp.write("\n") # print "\n# Command %s -- %s (%s, %s)" % (`name`, `desc`, `code`, `subcode`) # print "# returns", compiledata(returns) # print "# accepts", compiledata(accepts) # for arg in arguments: # compileargument(arg) def compileargument(arg): [name, keyword, what] = arg print "# %s (%s)" % (name, `keyword`), compiledata(what) def findenumsinevent(event, enumsneeded): """Find all enums for a single event""" [name, desc, code, subcode, returns, accepts, arguments] = event for a in arguments: if is_enum(a[2]): ename = a[2][0] if ename <> '****': enumsneeded[ename] = 1 # # This class stores the code<->name translations for a single module. It is used # to keep the information while we're compiling the module, but we also keep these objects # around so if one suite refers to, say, an enum in another suite we know where to # find it. Finally, if we really can't find a code, the user can add modules by # hand. # class CodeNameMapper: def __init__(self): self.code2name = { "property" : {}, "class" : {}, "enum" : {}, "comparison" : {}, } self.name2code = { "property" : {}, "class" : {}, "enum" : {}, "comparison" : {}, } self.modulename = None self.star_imported = 0 def addnamecode(self, type, name, code): self.name2code[type][name] = code if not self.code2name[type].has_key(code): self.code2name[type][code] = name def hasname(self, type, name): return self.name2code[type].has_key(name) def hascode(self, type, code): return self.code2name[type].has_key(code) def findcodename(self, type, code): if not self.hascode(type, code): return None, None, None name = self.code2name[type][code] if self.modulename and not self.star_imported: qualname = '%s.%s'%(self.modulename, name) else: qualname = name return name, qualname, self.modulename def getall(self, type): return self.code2name[type].items() def addmodule(self, module, name, star_imported): self.modulename = name self.star_imported = star_imported for code, name in module._propdeclarations.items(): self.addnamecode('property', name, code) for code, name in module._classdeclarations.items(): self.addnamecode('class', name, code) for code in module._enumdeclarations.keys(): self.addnamecode('enum', '_Enum_'+identify(code), code) for code, name in module._compdeclarations.items(): self.addnamecode('comparison', name, code) def prepareforexport(self, name=None): if not self.modulename: self.modulename = name return self class ObjectCompiler: def __init__(self, fp, basesuite=None, othernamemappers=None): self.fp = fp self.basesuite = basesuite self.namemappers = [CodeNameMapper()] if othernamemappers: self.othernamemappers = othernamemappers[:] else: self.othernamemappers = [] if basesuite: basemapper = CodeNameMapper() basemapper.addmodule(basesuite, '', 1) self.namemappers.append(basemapper) def getprecompinfo(self, modname): list = [] for mapper in self.namemappers: emapper = mapper.prepareforexport(modname) if emapper: list.append(emapper) return list def findcodename(self, type, code): while 1: # First try: check whether we already know about this code. for mapper in self.namemappers: if mapper.hascode(type, code): return mapper.findcodename(type, code) # Second try: maybe one of the other modules knows about it. for mapper in self.othernamemappers: if mapper.hascode(type, code): self.othernamemappers.remove(mapper) self.namemappers.append(mapper) if self.fp: self.fp.write("import %s\n"%mapper.modulename) break else: # If all this has failed we ask the user for a guess on where it could # be and retry. if self.fp: m = self.askdefinitionmodule(type, code) else: m = None if not m: return None, None, None mapper = CodeNameMapper() mapper.addmodule(m, m.__name__, 0) self.namemappers.append(mapper) def askdefinitionmodule(self, type, code): fss, ok = macfs.PromptGetFile('Where is %s %s declared?'%(type, code)) if not ok: return path, file = os.path.split(fss.as_pathname()) modname = os.path.splitext(file)[0] if not path in sys.path: sys.path.insert(0, path) m = __import__(modname) self.fp.write("import %s\n"%modname) return m def compileclass(self, cls): [name, code, desc, properties, elements] = cls pname = identify(name) if self.namemappers[0].hascode('class', code): # plural forms and such othername, dummy, dummy = self.namemappers[0].findcodename('class', code) if self.fp: self.fp.write("\n%s = %s\n"%(pname, othername)) else: if self.fp: self.fp.write('\nclass %s(aetools.ComponentItem):\n' % pname) self.fp.write('\t"""%s - %s """\n' % (name, desc)) self.fp.write('\twant = %s\n' % `code`) self.namemappers[0].addnamecode('class', pname, code) for prop in properties: self.compileproperty(prop) for elem in elements: self.compileelement(elem) def compileproperty(self, prop): [name, code, what] = prop if code == 'c@#!': # Something silly with plurals. Skip it. return pname = identify(name) if self.namemappers[0].hascode('property', code): # plural forms and such othername, dummy, dummy = self.namemappers[0].findcodename('property', code) if self.fp: self.fp.write("\n%s = %s\n"%(pname, othername)) else: if self.fp: self.fp.write("class %s(aetools.NProperty):\n" % pname) self.fp.write('\t"""%s - %s """\n' % (name, what[1])) self.fp.write("\twhich = %s\n" % `code`) self.fp.write("\twant = %s\n" % `what[0]`) self.namemappers[0].addnamecode('property', pname, code) def compileelement(self, elem): [code, keyform] = elem if self.fp: self.fp.write("# element %s as %s\n" % (`code`, keyform)) def fillclasspropsandelems(self, cls): [name, code, desc, properties, elements] = cls cname = identify(name) if self.namemappers[0].hascode('class', code) and \ self.namemappers[0].findcodename('class', code)[0] != cname: # This is an other name (plural or so) for something else. Skip. return plist = [] elist = [] for prop in properties: [pname, pcode, what] = prop if pcode == 'c@#!': continue pname = identify(pname) plist.append(pname) for elem in elements: [ecode, keyform] = elem if ecode == 'c@#!': continue name, ename, module = self.findcodename('class', ecode) if not name: if self.fp: self.fp.write("# XXXX %s element %s not found!!\n"%(cname, `ecode`)) else: elist.append((name, ename)) if self.fp: self.fp.write("%s._propdict = {\n"%cname) for n in plist: self.fp.write("\t'%s' : %s,\n"%(n, n)) self.fp.write("}\n") self.fp.write("%s._elemdict = {\n"%cname) for n, fulln in elist: self.fp.write("\t'%s' : %s,\n"%(n, fulln)) self.fp.write("}\n") def compilecomparison(self, comp): [name, code, comment] = comp iname = identify(name) self.namemappers[0].addnamecode('comparison', iname, code) if self.fp: self.fp.write("class %s(aetools.NComparison):\n" % iname) self.fp.write('\t"""%s - %s """\n' % (name, comment)) def compileenumeration(self, enum): [code, items] = enum name = "_Enum_%s" % identify(code) if self.fp: self.fp.write("%s = {\n" % name) for item in items: self.compileenumerator(item) self.fp.write("}\n\n") self.namemappers[0].addnamecode('enum', name, code) return code def compileenumerator(self, item): [name, code, desc] = item self.fp.write("\t%s : %s,\t# %s\n" % (`name`, `code`, desc)) def checkforenum(self, enum): """This enum code is used by an event. Make sure it's available""" name, fullname, module = self.findcodename('enum', enum) if not name: if self.fp: self.fp.write("_Enum_%s = None # XXXX enum %s not found!!\n"%(identify(enum), enum)) return if module: if self.fp: self.fp.write("from %s import %s\n"%(module, name)) def dumpindex(self): if not self.fp: return self.fp.write("\n#\n# Indices of types declared in this module\n#\n") self.fp.write("_classdeclarations = {\n") for k, v in self.namemappers[0].getall('class'): self.fp.write("\t%s : %s,\n" % (`k`, v)) self.fp.write("}\n") self.fp.write("\n_propdeclarations = {\n") for k, v in self.namemappers[0].getall('property'): self.fp.write("\t%s : %s,\n" % (`k`, v)) self.fp.write("}\n") self.fp.write("\n_compdeclarations = {\n") for k, v in self.namemappers[0].getall('comparison'): self.fp.write("\t%s : %s,\n" % (`k`, v)) self.fp.write("}\n") self.fp.write("\n_enumdeclarations = {\n") for k, v in self.namemappers[0].getall('enum'): self.fp.write("\t%s : %s,\n" % (`k`, v)) self.fp.write("}\n") def compiledata(data): [type, description, flags] = data return "%s -- %s %s" % (`type`, `description`, compiledataflags(flags)) def is_null(data): return data[0] == 'null' def is_optional(data): return (data[2] & 0x8000) def is_enum(data): return (data[2] & 0x2000) def getdatadoc(data): [type, descr, flags] = data if descr: return descr if type == '****': return 'anything' if type == 'obj ': return 'an AE object reference' return "undocumented, typecode %s"%`type` dataflagdict = {15: "optional", 14: "list", 13: "enum", 12: "mutable"} def compiledataflags(flags): bits = [] for i in range(16): if flags & (1<