forked from hkc/mastoposter
94 lines
2.5 KiB
Python
94 lines
2.5 KiB
Python
|
"""
|
||
|
|
mastoposter - configurable reposter from Mastodon-compatible Fediverse servers
|
||
|
|
Copyright (C) 2022-2023 hatkidchan <hatkidchan@gmail.com>
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 3 of the License, or
|
||
|
|
(at your option) any later version.
|
||
|
|
|
||
|
|
This program is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License for more details.
|
||
|
|
"""
|
||
|
|
from typing import Callable, Iterable, Literal, Optional
|
||
|
|
from bs4.element import Tag, PageElement
|
||
|
|
from html import escape
|
||
|
|
|
||
|
|
VALID_OUTPUT_TYPES = Literal["plain", "html", "markdown"]
|
||
|
|
BULLET = "\u2022"
|
||
|
|
STRIPE = "\u258d"
|
||
|
|
|
||
|
|
|
||
|
|
def md_escape(text: str) -> str:
|
||
|
|
return (
|
||
|
|
text.replace("\\", "\\\\")
|
||
|
|
.replace("*", "\\*")
|
||
|
|
.replace("[", "\\[")
|
||
|
|
.replace("]", "\\]")
|
||
|
|
.replace("_", "\\_")
|
||
|
|
.replace("~", "\\~")
|
||
|
|
.replace("|", "\\|")
|
||
|
|
.replace("`", "\\`")
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
node_processors: dict[
|
||
|
|
tuple[VALID_OUTPUT_TYPES, str],
|
||
|
|
list[
|
||
|
|
Callable[
|
||
|
|
[
|
||
|
|
Tag,
|
||
|
|
],
|
||
|
|
Optional[str],
|
||
|
|
]
|
||
|
|
],
|
||
|
|
] = {}
|
||
|
|
|
||
|
|
|
||
|
|
def register_converter(tag: str, output_type: VALID_OUTPUT_TYPES = "plain"):
|
||
|
|
def decorate(function):
|
||
|
|
node_processors[output_type, tag].append(function)
|
||
|
|
return function
|
||
|
|
|
||
|
|
return decorate
|
||
|
|
|
||
|
|
|
||
|
|
def register_fmt_converter(
|
||
|
|
format: str,
|
||
|
|
tag: str,
|
||
|
|
output_type: VALID_OUTPUT_TYPES = "plain",
|
||
|
|
separator: str = "",
|
||
|
|
):
|
||
|
|
def fmt_tag(el: Tag) -> str:
|
||
|
|
if "%s" in format:
|
||
|
|
return format % nodes_process(el.children, output_type, separator)
|
||
|
|
return format
|
||
|
|
|
||
|
|
register_converter(tag, output_type)(fmt_tag)
|
||
|
|
|
||
|
|
|
||
|
|
def node_process(el: PageElement, type_: VALID_OUTPUT_TYPES) -> str:
|
||
|
|
if isinstance(el, Tag):
|
||
|
|
for func in node_processors[type_, el.name]:
|
||
|
|
result = func(el) # XXX: could use walrus, but it's py3.8+ only
|
||
|
|
if result:
|
||
|
|
return result
|
||
|
|
return escape(str(el))
|
||
|
|
|
||
|
|
|
||
|
|
def nodes_process(
|
||
|
|
els: Iterable[PageElement],
|
||
|
|
type_: VALID_OUTPUT_TYPES = "plain",
|
||
|
|
separator: str = "",
|
||
|
|
) -> str:
|
||
|
|
return str.join(separator, (node_process(el, type_) for el in els))
|
||
|
|
|
||
|
|
|
||
|
|
__all__ = ["node_process", "nodes_process", "md_escape", "BULLET", "STRIPE"]
|
||
|
|
|
||
|
|
import mastoposter.text.html # noqa F401
|
||
|
|
import mastoposter.text.markdown # noqa F401
|
||
|
|
import mastoposter.text.plain # noqa F401
|