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# This file is part of python-markups module
# License: 3-clause BSD, see LICENSE file
# Copyright: (C) Dave Kuhlman, 2022
import importlib
import warnings
from io import StringIO
import markups.common as common
from markups.abstract import AbstractMarkup, ConvertedMarkup
class AsciiDocMarkup(AbstractMarkup):
"""Markup class for AsciiDoc language.
Inherits :class:`~markups.abstract.AbstractMarkup`.
"""
name = "asciidoc"
attributes = {
common.LANGUAGE_HOME_PAGE: "https://asciidoc.org",
common.MODULE_HOME_PAGE: "https://asciidoc-py.github.io",
common.SYNTAX_DOCUMENTATION: "https://asciidoc-py.github.io/userguide.html",
}
file_extensions = (".adoc", ".asciidoc")
default_extension = ".adoc"
@staticmethod
def available() -> bool:
try:
importlib.import_module("asciidoc")
importlib.import_module("lxml")
except ImportError:
return False
return True
def convert(self, text: str) -> ConvertedMarkup:
import asciidoc
from lxml import etree
outfile = StringIO()
infile = StringIO(text)
opts = [
("--backend", "html5"),
("--attribute", r"newline=\n"),
("--attribute", "footer-style=none"),
("--out-file", outfile),
]
try:
asciidoc.execute(None, opts, [infile])
except SystemExit as ex:
warnings.warn(str(ex.__context__), SyntaxWarning)
pass
result = outfile.getvalue()
parser = etree.HTMLParser()
root_element = etree.fromstring(result, parser)
head_element = root_element.xpath("./head")[0]
title_element = root_element.xpath("./head/title")[0]
style_elements = root_element.xpath("./head/style")
javascript_elements = root_element.xpath("./head/script")
body_element = root_element.xpath("./body")[0]
head = ""
for child in head_element.getchildren():
head += etree.tostring(
child,
encoding="unicode",
method="html",
)
body = ""
for child in body_element.getchildren():
body += etree.tostring(
child,
encoding="unicode",
method="html",
)
title = title_element.text
stylesheet = ""
for style_element in style_elements:
stylesheet += style_element.text
javascript = ""
for javascript_element in javascript_elements:
javascript += etree.tostring(
javascript_element,
encoding="unicode",
method="html",
)
return ConvertedMarkup(body, title, stylesheet, javascript)
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