71 lines
1.7 KiB
Python
Executable File
71 lines
1.7 KiB
Python
Executable File
#!/usr/bin/env python3
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import re
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import markdown2
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# https://stackoverflow.com/a/6041965
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RE_URL = re.compile(
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r"(https?://([\w_-]+(?:(?:\.[\w_-]+)+))([\w.,@?^=%&:/~+#-]*[\w@?^=%&/~+#-]))"
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)
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RE_EM = re.compile(r"\*(.*?)\*")
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RE_LIST = re.compile(r"(-|[0-9]\.) .*")
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RE_PLAINURL = re.compile(
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r"([ |\n])(https?://([\w_-]+(?:(?:\.[\w_-]+)+))([\w.,@?^=%&:/~+#-]*[\w@?^=%&/~+#-]))[^\)]"
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)
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def html(text):
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text = RE_PLAINURL.sub(r'\1[\2](\2)', text)
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return markdown2.markdown(text)
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def html_old(text):
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# Replace angle brackets to prevent XSS
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# Also replace ampersands to prevent surprises.
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text = text.replace("&", "&").replace("<", "<").replace(">", ">")
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html = ["<p>"]
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lines = text.split("\n")
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in_code = False
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in_list = False
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for l in lines:
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if l == "":
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in_list = False
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if in_code:
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html.append("</pre>")
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in_code = False
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html.append("</p><p>")
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continue
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if l.startswith(" "):
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in_list = False
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l = l[2:]
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if not in_code:
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html.append("<pre>")
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in_code = True
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html.append(l)
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continue
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if in_code:
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html.append("</pre>")
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in_code = False
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l = RE_EM.sub(r"<em>\1</em>", l)
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l = RE_URL.sub(r'<a href="\1">\1</a>', l)
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if RE_LIST.match(l):
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if in_list:
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html.append("<br>")
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in_list = True
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else:
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in_list = False
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html.append(l)
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if in_code:
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html.append("</pre>")
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html.append("</p>")
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return "\n".join(html)
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if __name__ == "__main__":
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import sys
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print(html_old(sys.stdin.read()))
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