--- /dev/null
+'''
+AECaptureParser makes a brave attempt to convert the text output
+of the very handy Lasso Capture AE control panel
+into close-enough executable python code.
+
+In a roundabout way AECaptureParser offers the way to write lines of AppleScript
+and convert them to python code. Once Pythonised, the code can be made prettier,
+and it can run without Capture or Script Editor being open.
+
+You need Lasso Capture AE from Blueworld:
+ftp://ftp.blueworld.com/Lasso251/LassoCaptureAE.hqx
+
+Lasso Capture AE prints structured ascii representations in a small window.
+As these transcripts can be very complex, cut and paste to AECaptureParser, it parses and writes
+python code that will, when executed, cause the same events to happen.
+It's been tested with some household variety events, I'm sure there will be tons that
+don't work.
+
+All objects are converted to standard aetypes.ObjectSpecifier instances.
+
+How to use:
+ 1. Start the Capture window
+ 2. Cause the desired appleevent to happen
+ - by writing a line of applescript in Script Editor and running it (!)
+ - by recording some action in Script Editor and running it
+ 3. Find the events in Capture:
+ - make sure you get the appropriate events, cull if necessary
+ - sometimes Capture barfs, just quit and start Capture again, run events again
+ - AECaptureParser can process multiple events - it will just make more code.
+ 4. Copy and paste in this script and execute
+ 5. It will print python code that, when executed recreates the events.
+
+Example:
+ For instance the following line of AppleScript in Script Editor
+ tell application "Finder"
+ return application processes
+ end tell
+ will result in the following transcript:
+ [event: target="Finder", class=core, id=getd]
+ '----':obj {form:indx, want:type(pcap), seld:abso(«616C6C20»), from:'null'()}
+ [/event]
+ Feed a string with this (and perhaps more) events to AECaptureParser
+
+Some mysteries:
+ * what is '&subj' - it is sent in an activate event: &subj:'null'()
+ The activate event works when this is left out. A possibility?
+ * needs to deal with embedded aliasses
+
+
+'''
+__version__ = '0.002'
+__author__ = 'evb'
+
+
+import string
+
+opentag = '{'
+closetag = '}'
+
+
+
+import aetools
+import aetypes
+
+class eventtalker(aetools.TalkTo):
+ pass
+
+def processes():
+ '''Helper function to get the list of current processes and their creators
+ This code was mostly written by AECaptureParser! It ain't pretty, but that's not python's fault!'''
+ talker = eventtalker('MACS')
+ _arguments = {}
+ _attributes = {}
+ p = []
+ names = []
+ creators = []
+ results = []
+ # first get the list of process names
+ _arguments['----'] = aetypes.ObjectSpecifier(want=aetypes.Type('pcap'),
+ form="indx", seld=aetypes.Unknown('abso', "all "), fr=None)
+ _reply, _arguments, _attributes = talker.send('core', 'getd', _arguments, _attributes)
+ if _arguments.has_key('errn'):
+ raise aetools.Error, aetools.decodeerror(_arguments)
+ if _arguments.has_key('----'):
+ p = _arguments['----']
+ for proc in p:
+ names.append(proc.seld)
+ # then get the list of process creators
+ _arguments = {}
+ _attributes = {}
+ AEobject_00 = aetypes.ObjectSpecifier(want=aetypes.Type('pcap'), form="indx", seld=aetypes.Unknown('abso', "all "), fr=None)
+ AEobject_01 = aetypes.ObjectSpecifier(want=aetypes.Type('prop'), form="prop", seld=aetypes.Type('fcrt'), fr=AEobject_00)
+ _arguments['----'] = AEobject_01
+ _reply, _arguments, _attributes = talker.send('core', 'getd', _arguments, _attributes)
+ if _arguments.has_key('errn'):
+ raise aetools.Error, aetools.decodeerror(_arguments)
+ if _arguments.has_key('----'):
+ p = _arguments['----']
+ for proc in p:
+ creators.append(proc.type)
+ # then put the lists together
+ for i in range(len(names)):
+ results.append((names[i], creators[i]))
+ return results
+
+
+class AECaptureParser:
+ '''convert a captured appleevent-description into executable python code'''
+ def __init__(self, aetext):
+ self.aetext = aetext
+ self.events = []
+ self.arguments = {}
+ self.objectindex = 0
+ self.varindex = 0
+ self.currentevent = {'variables':{}, 'arguments':{}, 'objects':{}}
+ self.parse()
+
+ def parse(self):
+ self.lines = string.split(self.aetext, '\n')
+ for l in self.lines:
+ if l[:7] == '[event:':
+ self.eventheader(l)
+ elif l[:7] == '[/event':
+ if len(self.currentevent)<>0:
+ self.events.append(self.currentevent)
+ self.currentevent = {'variables':{}, 'arguments':{}, 'objects':{}}
+ self.objectindex = 0
+ else:
+ self.line(l)
+
+ def line(self, value):
+ '''interpret literals, variables, lists etc.'''
+ # stuff in [ ], l ists
+ varstart = string.find(value, '[')
+ varstop = string.find(value, ']')
+ if varstart <> -1 and varstop <> -1 and varstop>varstart:
+ variable = value[varstart:varstop+1]
+ name = 'aevar_'+string.zfill(self.varindex, 2)
+ self.currentevent['variables'][name] = variable
+ value = value[:varstart]+name+value[varstop+1:]
+ self.varindex = self.varindex + 1
+ # stuff in « »
+ # these are 'ordinal' descriptors of 4 letter codes, so translate
+ varstart = string.find(value, '«')
+ varstop = string.find(value, '»')
+ if varstart <> -1 and varstop <> -1 and varstop>varstart:
+ variable = value[varstart+1:varstop]
+ t = ''
+ for i in range(0, len(variable), 2):
+ c = eval('0x'+variable[i : i+2])
+ t = t + chr(c)
+
+ name = 'aevar_'+string.zfill(self.varindex, 2)
+ self.currentevent['variables'][name] = '"' + t + '"'
+ value = value[:varstart]+name+value[varstop+1:]
+ self.varindex = self.varindex + 1
+ pos = string.find(value, ':')
+ if pos==-1:return
+ ok = 1
+ while ok <> None:
+ value, ok = self.parseobject(value)
+ self.currentevent['arguments'].update(self.splitparts(value, ':'))
+
+ # remove the &subj argument?
+ if self.currentevent['arguments'].has_key('&subj'):
+ del self.currentevent['arguments']['&subj']
+
+ # check for arguments len(a) < 4, and pad with spaces
+ for k in self.currentevent['arguments'].keys():
+ if len(k)<4:
+ newk = k + (4-len(k))*' '
+ self.currentevent['arguments'][newk] = self.currentevent['arguments'][k]
+ del self.currentevent['arguments'][k]
+
+ def parseobject(self, obj):
+ a, b = self.findtag(obj)
+ stuff = None
+ if a<>None and b<>None:
+ stuff = obj[a:b]
+ name = 'AEobject_'+string.zfill(self.objectindex, 2)
+ self.currentevent['objects'][name] = self.splitparts(stuff, ':')
+ obj = obj[:a-5] + name + obj[b+1:]
+ self.objectindex = self.objectindex +1
+ return obj, stuff
+
+ def nextopen(self, pos, text):
+ return string.find(text, opentag, pos)
+
+ def nextclosed(self, pos, text):
+ return string.find(text, closetag, pos)
+
+ def nexttag(self, pos, text):
+ start = self.nextopen(pos, text)
+ stop = self.nextclosed(pos, text)
+ if start == -1:
+ if stop == -1:
+ return -1, -1
+ return 0, stop
+ if start < stop and start<>-1:
+ return 1, start
+ else:
+ return 0, stop
+
+ def findtag(self, text):
+ p = -1
+ last = None,None
+ while 1:
+ kind, p = self.nexttag(p+1, text)
+ if last[0]==1 and kind==0:
+ return last[1]+len(opentag), p
+ if (kind, p) == (-1, -1):
+ break
+ last=kind, p
+ return None, None
+
+ def splitparts(self, txt, splitter):
+ res = {}
+ parts = string.split(txt, ', ')
+ for p in parts:
+ pos = string.find(p, splitter)
+ key = string.strip(p[:pos])
+ value = string.strip(p[pos+1:])
+ res[key] = self.map(value)
+ return res
+
+ def eventheader(self, hdr):
+ self.currentevent['event'] = self.splitparts(hdr[7:-1], '=')
+
+ def printobject(self, d):
+ '''print one object as python code'''
+ t = []
+ obj = {}
+ obj.update(d)
+ t.append("aetypes.ObjectSpecifier(")
+ if obj.has_key('want'):
+ t.append('want=' + self.map(obj['want']))
+ del obj['want']
+ t.append(', ')
+ if obj.has_key('form'):
+ t.append('form=' + addquotes(self.map(obj['form'])))
+ del obj['form']
+ t.append(', ')
+ if obj.has_key('seld'):
+ t.append('seld=' + self.map(obj['seld']))
+ del obj['seld']
+ t.append(', ')
+ if obj.has_key('from'):
+ t.append('fr=' + self.map(obj['from']))
+ del obj['from']
+ if len(obj.keys()) > 0:
+ print '# ', `obj`
+ t.append(")")
+ return string.join(t, '')
+
+ def map(self, t):
+ '''map some Capture syntax to python
+ matchstring : [(old, new), ... ]
+ '''
+ m = {
+ 'type(': [('type(', "aetypes.Type('"), (')', "')")],
+ "'null'()": [("'null'()", "None")],
+ 'abso(': [('abso(', "aetypes.Unknown('abso', ")],
+ '³': [('³', '"')],
+ '²': [('²', '"')],
+ '[': [('[', '('), (', ', ',')],
+ ']': [(']', ')')],
+ '«': [('«', "«")],
+ '»': [('»', "»")],
+
+ }
+ for k in m.keys():
+ if string.find(t, k) <> -1:
+ for old, new in m[k]:
+ p = string.split(t, old)
+ t = string.join(p, new)
+ return t
+
+ def printevent(self, i):
+ '''print the entire captured sequence as python'''
+ evt = self.events[i]
+ code = []
+ code.append('\n# start event ' + `i` + ', talking to ' + evt['event']['target'])
+ # get the signature for the target application
+ code.append('talker = eventtalker("'+self.gettarget(evt['event']['target'])+'")')
+ code.append("_arguments = {}")
+ code.append("_attributes = {}")
+ # write the variables
+ for key, value in evt['variables'].items():
+ value = evt['variables'][key]
+ code.append(key + ' = ' + value)
+ # write the object in the right order
+ objkeys = evt['objects'].keys()
+ objkeys.sort()
+ for key in objkeys:
+ value = evt['objects'][key]
+ code.append(key + ' = ' + self.printobject(value))
+ # then write the arguments
+ for key, value in evt['arguments'].items():
+ code.append("_arguments[" + addquotes(key) + "] = " + value )
+ code.append('_reply, _arguments, _attributes = talker.send("'+
+ evt['event']['class']+'", "'+evt['event']['id']+'", _arguments, _attributes)')
+ code.append("if _arguments.has_key('errn'):")
+ code.append('\traise aetools.Error, aetools.decodeerror(_arguments)')
+ code.append("if _arguments.has_key('----'):")
+ code.append("\tprint _arguments['----']")
+ code.append('# end event ' + `i`)
+ return string.join(code, '\n')
+
+ def gettarget(self, target):
+ '''get the signature for the target application'''
+ target = target[1:-1]
+ if target == 'Finder':
+ return "MACS"
+ apps = processes()
+ for name, creator in apps:
+ if name == target:
+ return creator
+ return '****'
+
+ def makecode(self):
+ code = []
+ code.append("\n\n")
+ code.append("# code generated by AECaptureParser v " + __version__)
+ code.append("# imports, definitions for all events")
+ code.append("import aetools")
+ code.append("import aetypes")
+ code.append("class eventtalker(aetools.TalkTo):")
+ code.append("\tpass")
+ code.append("# the events")
+ # print the events
+ for i in range(len(self.events)):
+ code.append(self.printevent(i))
+ code.append("# end code")
+ return string.join(code, '\n')
+
+def addquotes(txt):
+ quotes = ['"', "'"]
+ if not txt[0] in quotes and not txt[-1] in quotes:
+ return '"'+txt+'"'
+ return txt
+
+
+
+
+
+
+# ------------------------------------------
+# the factory
+# ------------------------------------------
+
+# for instance, this event was captured from the Script Editor asking the Finder for a list of active processes.
+
+eventreceptacle = """
+
+[event: target="Finder", class=core, id=setd]
+'----':obj {form:prop, want:type(prop), seld:type(posn), from:obj {form:name, want:type(cfol), seld:³MoPar:Data:DevDev:Python:Python 1.5.2c1:Extensions², from:'null'()}}, data:[100, 10]
+[/event]
+
+"""
+
+aet = AECaptureParser(eventreceptacle)
+print aet.makecode()
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