Telethon/telethon_generator/parser/tl_parser.py
2017-11-30 13:34:55 +01:00

52 lines
1.8 KiB
Python

import re
from .tl_object import TLObject
class TLParser:
"""Class used to parse .tl files"""
@staticmethod
def parse_file(file_path, ignore_core=False):
"""This method yields TLObjects from a given .tl file"""
with open(file_path, encoding='utf-8') as file:
# Start by assuming that the next found line won't
# be a function (and will hence be a type)
is_function = False
# Read all the lines from the .tl file
for line in file:
# Strip comments from the line
comment_index = line.find('//')
if comment_index != -1:
line = line[:comment_index]
line = line.strip()
if line:
# Check whether the line is a type change
# (types <-> functions) or not
match = re.match('---(\w+)---', line)
if match:
following_types = match.group(1)
is_function = following_types == 'functions'
else:
try:
result = TLObject.from_tl(line, is_function)
if not ignore_core or not result.is_core_type():
yield result
except ValueError as e:
if 'vector#1cb5c415' not in str(e):
raise
@staticmethod
def find_layer(file_path):
"""Finds the layer used on the specified scheme.tl file"""
layer_regex = re.compile(r'^//\s*LAYER\s*(\d+)$')
with open(file_path, encoding='utf-8') as file:
for line in file:
match = layer_regex.match(line)
if match:
return int(match.group(1))