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9009cc7a7b
Add a Select2 drop-down to `add-shows` and `edit-show`. The Select2 enables displaying inline language flag images, this feature deprecated by the native `select` drop-down element on some browsers. Change run existing TVInfo source language lists through validation (removes ~4 bad items), de-dupe list, get the native names, English names, and three letter abbr. Change remove marisa-trie requirement from language_data/names.py because nothing in SG calls a function that requires it. Change update some flags.
112 lines
3.8 KiB
Python
112 lines
3.8 KiB
Python
# import marisa_trie
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import warnings
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from language_data.util import data_filename
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TRIES = {}
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# This is something we could hypothetically discover from XML files, but
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# we end up learning that most languages separate things with commas, with
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# a few exceptions. We'll just put those exceptions here.
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DISPLAY_SEPARATORS = {
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'am': '፣',
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'ar': '، ',
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'brx': ',',
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'fa': '، ',
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'ja': '、',
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'my': '၊ ',
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'ug': '، ',
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'und': ', ',
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'ur': '، ',
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'yue': '，',
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'zh': '，',
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}
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def normalize_name(name):
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"""
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When looking up a language-code component by name, we would rather ignore
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distinctions of case and certain punctuation. "Chinese (Traditional)"
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should be matched by "Chinese Traditional" and "chinese traditional".
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"""
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name = name.casefold()
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name = name.replace("’", "'")
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name = name.replace("-", " ")
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name = name.replace("(", "")
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name = name.replace(")", "")
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name = name.replace(",", "")
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return name.strip()
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# def load_trie(filename):
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# """
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# Load a BytesTrie from the marisa_trie on-disk format.
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# """
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# trie = marisa_trie.BytesTrie()
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# # marisa_trie raises warnings that make no sense. Ignore them.
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# with warnings.catch_warnings():
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# warnings.simplefilter("ignore")
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# trie.load(filename)
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# return trie
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def get_trie_value(trie, key):
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"""
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Get the value that a BytesTrie stores for a particular key, decoded
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as Unicode. Raises a KeyError if there is no value for that key.
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"""
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return trie[key][0].decode("utf-8")
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def name_to_code(category, name, language: str = "und"):
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"""
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Get a language, script, or territory by its name in some language.
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The language here must be a string representing a language subtag only.
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The `Language.find` method can handle other representations of a language
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and normalize them to this form.
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The default language, "und", will allow matching names in any language,
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so you can get the code 'fr' by looking up "French", "Français", or
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"francés".
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A small amount of fuzzy matching is supported: if the name can be
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shortened or lengthened to match a single language name, you get that
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language. This allows, for example, "Hakka Chinese" to match "Hakka".
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Occasionally, names are ambiguous in a way that can be resolved by
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specifying what name the language is supposed to be in. For example,
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there is a language named 'Malayo' in English, but it's different from
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the language named 'Malayo' in Spanish (which is Malay). Specifying the
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language will look up the name in a trie that is only in that language.
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"""
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assert "/" not in language, "Language codes cannot contain slashes"
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assert "-" not in language, "This code should be reduced to a language subtag only"
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trie_name = "{}/name_to_{}".format(language, category)
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if trie_name not in TRIES:
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TRIES[trie_name] = load_trie(data_filename("trie/{}.marisa".format(trie_name)))
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trie = TRIES[trie_name]
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lookup = normalize_name(name)
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if lookup in trie:
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return get_trie_value(trie, lookup)
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else:
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# Is this a language name plus extra verbiage? Maybe it has "...isch",
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# "... language", or "... Chinese" attached to it, for example. Look
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# for a matching prefix of the desired name with at least 4 characters.
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prefixes = trie.prefixes(lookup)
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if prefixes and len(prefixes[-1]) >= 4:
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return get_trie_value(trie, prefixes[-1])
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else:
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return None
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def code_to_names(code):
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"""
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Given the code for a language, script, or territory, get a dictionary of its
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names in various languages.
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"""
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# late import to save memory when possible
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import language_data.name_data
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return language_data.name_data.CODE_TO_NAMES.get(code, {})
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