opus_history_strin_parser.py

filter_not_zero = lambda x : list(filter(None,x))

def extract_history(opusdata, histkey=None):
    if histkey is None:
        histkey='History'

    history = filter_not_zero([s for s in opusdata['History'].split('COMMAND_LINE')])
    
    return [extract_single_history(h) for h in history]
    

def extract_single_history(stri):

    stri_dict = {}
    
    def tryEval(s):
      try:
        return eval(s, {}, {})
      except:
        return s

    if ';' in stri :

        stri_spl = stri.split(';')

        stri_dict['comment'] = stri_spl[1].replace('\x00','')
        # if Operation in comment
        if 'Operation' in stri_dict['comment']:

            tmp_stri_dict_comment = []

            tmp_stri_dict_comment.append( stri_dict['comment'].split('Operation:')[0].replace('\t','') )
            operation_dict = {}
            operation_list = iter(filter_not_zero(stri_dict['comment'].split('Operation:')[1].split('\t')))

            operation_dict['Operation'] = next(operation_list)

            for el in operation_list:
                key, val = el.split(':')
                operation_dict[key.strip()] = val[1:-1] if "'" in val else tryEval(val)
            tmp_stri_dict_comment.append(operation_dict)

            stri_dict['comment'] = tmp_stri_dict_comment
        else:
            stri_dict['comment'] = stri_dict['comment'].replace('\t','')            

        di = {}
        di['Preamble'] = stri_spl[0].split('(')[1][:-1].split('{')[0]

        import re
        # extract text in [] and split to list 
        di['Preamble'] = re.search(r'\[(.*?)\]',di['Preamble']).group(1).split(',')

        s = stri_spl[0].split('(')[1][:-1].split('{')[1][:-1]
        if len(s) != 0 : 
            for el in s.split(','):
                key, val = el.split('=')
                di[key.strip()] = val[1:-1] if "'" in val else tryEval(val)

            # dict title = COMMAND_LINE argument
            stri_dict[stri_spl[0].split('(')[0].strip()] = di
        else:
            stri_dict[stri_spl[0].split('(')[0].strip()] = {}
        return stri_dict
    
    else :        
        return filter_not_zero(initial_history.split('\t'))


opus_data_history = extract_history(opus_data)