116 lines
2.6 KiB
Python
116 lines
2.6 KiB
Python
"""Util functions."""
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import re
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import urllib
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from typing import Any
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# util functions that don't access the network
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namespaces = {
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ns.casefold()
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for ns in (
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"Special",
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"Media",
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"Talk",
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"Template",
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"Portal",
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"Portal talk",
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"Book",
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"Book talk",
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"Template talk",
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"Draft",
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"Draft talk",
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"Help",
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"Help talk",
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"Category",
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"Category talk",
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"User",
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"Gadget",
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"Gadget talk",
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"Gadget definition",
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"Gadget definition talk",
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"Topic",
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"User talk",
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"Wikipedia",
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"Education Program",
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"Education Program talk",
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"Wikipedia talk",
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"File",
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"File talk",
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"TimedText",
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"TimedText talk",
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"MediaWiki",
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"Module",
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"Module talk",
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"MediaWiki talk",
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)
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}
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re_space_or_dash = re.compile("[ -]")
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def is_title_case(phrase: str) -> bool:
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"""Is a given phrase is in Title Case."""
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return all(
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term[0].isupper() and term[1:].islower()
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for term in re_space_or_dash.split(phrase)
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if term and term[0].isalpha()
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)
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def urlquote(value: str) -> str:
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"""Prepare string for use in URL param."""
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return urllib.parse.quote_plus(value.encode("utf-8"))
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def strip_parens(q: str) -> str:
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"""Remove a word in parenthesis from the end of a string."""
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m = re.search(r" \(.*?\)$", q)
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return q[: m.start()] if m else q
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def starts_with_namespace(title: str) -> bool:
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"""Check if a title starts with a namespace."""
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return ":" in title and title.split(":", 1)[0].casefold() in namespaces
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def is_disambig(doc: dict[str, Any]) -> bool:
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"""Is a this a disambiguation page."""
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return any(
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"disambig" in t
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or t.endswith("dis")
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or "given name" in t
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or t == "template:surname"
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for t in (t["title"].lower() for t in doc.get("templates", []))
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)
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def norm(s: str) -> str:
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"""Normalise string."""
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s = re.sub(r"\W", "", s).lower()
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return s[:-1] if s and s[-1] == "s" else s
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def case_flip(s: str) -> str:
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"""Switch case of character."""
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if s.islower():
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return s.upper()
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if s.isupper():
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return s.lower()
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return s
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def case_flip_first(s: str) -> str:
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"""Switch case of first character in string."""
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return case_flip(s[0]) + s[1:]
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def lc_alpha(s: str) -> str:
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"""Lower case alphabetic characters in string."""
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return "".join(c.lower() for c in s if c.isalpha())
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def wiki_space_norm(s: str) -> str:
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"""Normalise article title."""
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return s.replace("_", " ").strip()
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