Files
Hippolyzer/pyogp/lib/base/message_template_parser.py
2008-07-17 15:44:39 +00:00

108 lines
3.6 KiB
Python

#standard libraries
import re
import pprint
#local libraries
import message_template
from pyogp.lib.base.data import msg_tmpl
class MessageTemplateParser():
def __init__(self):
self.message_templates = {}
def get_template_list(self):
return self.message_templates.values()
def get_template(self, name):
return self.message_templates[name]
def add_template(self, new_template):
self.message_templates[new_template.get_name()] = new_template
def parse_template_file(self, template_file):
count = 0
template_file.seek(0)
lines = template_file
#results = re.match("^\t([^\t{}]+.+)",line) #gets packet headers
#results = re.match("^\t\t([^{}]+.+)",line) #gets packet blocks
#results = re.match("^\t\t([{}]+.+)",line) #gets block data
current_packet = None
current_block = None
print lines
#we have to go through all the packets and parse them
while(True):
try:
line = lines.next()
#print line
#raw_input()
except StopIteration:
break
#get packet header, starting a new packet
packet_header = re.match("^\t([^\t{}]+.+)",line) #gets packet headers
if packet_header != None:
parts = packet_header.group(1)
parts = parts.split()
current_packet = message_template.MessageTemplate(parts)
self.add_template(current_packet)
block_header = re.match("^\t\t([^{}]+.+)",line) #gets packet block header
if block_header != None:
parts = block_header.group(1)
parts = parts.split()
current_block = message_template.MessageTemplateBlock(parts)
current_packet.add_block(current_block)
block_data = re.match("^\t\t([{}]+.+)",line) #gets block data
if block_data != None:
parts = block_data.group(1)
parts = parts.split()
parts.remove('{')
parts.remove('}')
current_var = message_template.MessageTemplateVariable(parts[0], parts[1])
current_block.add_var(current_var)
def print_packet_list(packet_list):
for packet in packet_list:
print '======================================'
print packet.get_name() + ' ' + packet.get_frequency() + ' ' + \
packet.get_message_number() + ' ' + packet.get_message_trust() + ' ' + \
packet.get_message_encoding() + '' + packet.get_deprecation()
for block in packet.get_blocks():
print '\t' + block.get_name() + ' ' + block.get_block_type() + ' ' + \
str(block.get_block_number())
for variable in block.get_variables():
sz = len(variable.get_name())
print '\t\t' + variable.get_name() + variable.get_type().rjust(30 - sz)
def get_all_types(packet_list):
type_set = set([])
for packet in packet_list:
for block in packet.get_blocks():
for variable in block.get_variables():
type_set.add(variable.get_type())
type_list = list(type_set)
type_list.sort()
return type_list
def main():
parser = MessageTemplateParser()
parser.parse_template_file(msg_tmpl)
templates = parser.get_template_list()
print_packet_list(templates)
p_typelist = get_all_types(templates)
pprint.pprint(p_typelist)
return
if __name__ == "__main__":
main()