pytex/package_formatter.py

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2021-10-06 17:08:53 +02:00
import datetime
import re
from pathlib import Path
from typing import Dict
from datetime import *
from config import DEFAULT_DESCRIPTION, DEFAULT_AUTHOR
from enums import Attributes, Args
class PackageFormatter:
def __init__(self, package_name: str, description: str = DEFAULT_DESCRIPTION, author: str = DEFAULT_AUTHOR):
self.package_name_raw = package_name
self.description = description
self.author = author
author_parts = self.author.lower().replace('ß', 'ss').split(' ')
self.author_acronym = author_parts[0][0] + author_parts[-1]
self.package_name = r'{prefix}-{name}'.format(prefix=self.author_acronym,
name=self.package_name_raw.lower().strip().replace(' ', '-'))
self.package_prefix = self.package_name.replace('-', '@') + '@'
self.file_name = self.package_name + '.sty'
self.date = datetime.now().strftime('%Y/%m/%d')
self.replace_dict: Dict = {}
self.arg_replace_dict: Dict = {}
@staticmethod
def command_name2keyword(keyword: str):
return '__' + keyword.upper().strip().replace(' ', '_') + '__'
def parse_replacement_args(self, *user_args, **user_kwargs):
new_args = []
for arg in user_args:
if type(arg) == Attributes:
new_args.append(getattr(self, arg.value))
elif type(arg) == Args:
new_args.append('{}') # Do *not* format this entry in the string
elif type(arg) == str:
new_args.append(arg)
else:
new_args += 'ERROR'
new_args = tuple(new_args)
new_kwargs = {}
for kw in user_kwargs:
if type(user_kwargs[kw]) == Attributes:
new_kwargs[kw] = getattr(self, user_kwargs[kw].value)
elif type(user_kwargs[kw]) == Args:
new_kwargs[kw] = '{{{}}}'.format(kw) # Do *not* format this entry in the string
elif type(user_kwargs[kw]) == str:
new_kwargs[kw] = user_kwargs[kw]
else:
new_kwargs[kw] = 'ERROR'
return new_args, new_kwargs
@staticmethod
def filter_replacement_args(*user_args, **user_kwargs):
new_args = []
for arg in user_args:
if type(arg) == Args:
new_args.append(arg)
new_args = tuple(new_args)
new_kwargs = {}
for kw in user_kwargs:
if type(user_kwargs[kw]) == Args:
new_kwargs[kw] = user_kwargs[kw]
return new_args, new_kwargs
def add_replacement(self, keyword: str, replacement: str, *args, **kwargs) -> bool:
if keyword in self.replace_dict.keys():
return False
args, kwargs = self.parse_replacement_args(*args, **kwargs)
self.replace_dict[self.command_name2keyword(keyword)] = replacement.format(*args, **kwargs)
return True
@staticmethod
def parse_replacement_args2(match_groups, *user_args, **user_kwargs):
new_args = []
for arg in user_args:
if type(arg) == Args:
new_args.append(match_groups[arg.value])
new_args += 'ERROR'
new_args = tuple(new_args)
new_kwargs = {}
for kw in user_kwargs:
if type(user_kwargs[kw]) == Args:
new_kwargs[kw] = match_groups[user_kwargs[kw].value]
else:
new_kwargs[kw] = 'ERROR'
return new_args, new_kwargs
def add_arg_replacement(self, num_args: int, keyword: str, replacement: str, *args, **kwargs):
if keyword in self.arg_replace_dict.keys():
return False
format_args, format_kwargs = self.parse_replacement_args(*args, **kwargs)
filtered_args, filtered_kwargs = self.filter_replacement_args(*args, **kwargs)
self.arg_replace_dict[self.command_name2keyword(keyword)] = {
'num_args': num_args,
'replacement': replacement.format(*format_args, **format_kwargs),
'format_args': filtered_args,
'format_kwargs': filtered_kwargs
}
return True
def format(self, contents: str) -> str:
for key in self.replace_dict.keys():
contents = contents.replace(key, self.replace_dict[key])
return contents
def format_with_arg(self, contents: str) -> str:
for command in self.arg_replace_dict.keys():
search_regex = re.compile(r'{keyword}\({arguments}\)'.format(
keyword=command,
arguments=','.join(['(.*)'] * self.arg_replace_dict[command]['num_args'])
))
match = re.search(search_regex, contents)
while match is not None:
format_args, format_kwargs = self.parse_replacement_args2(
match.groups(),
*self.arg_replace_dict[command]['format_args'],
**self.arg_replace_dict[command]['format_kwargs']
)
contents = contents.replace(
match.group(),
self.arg_replace_dict[command]['replacement'].format(*format_args, **format_kwargs)
)
match = re.search(search_regex, contents)
return contents
def format_package(self, input_path: Path, output_dir: Path = None):
input_file = input_path.open()
lines = input_file.readlines()
newlines = []
for line in lines:
newlines += self.format_with_arg(self.format(line))
if output_dir is None:
output_dir = input_path.parent
(output_dir / self.file_name).write_text(''.join(newlines))