Tizian 「ティツィアーン」
649499be23
Its server, client, app and curator, and the tools that write its assets (maps, Anki fixtures, icons), as they are; paths are fixed in the commits that follow. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
699 lines
25 KiB
Dart
699 lines
25 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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import 'package:archive/archive.dart';
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import 'package:args/args.dart';
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import 'package:halkyon_learn_curator/src/mecab.dart';
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import 'package:halkyon_learn_curator/src/sources/cedict.dart';
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import 'package:halkyon_learn_curator/src/sources/hangul_strokes.dart';
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import 'package:halkyon_learn_curator/src/sources/jlpt.dart';
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import 'package:halkyon_learn_curator/src/sources/jmdict.dart';
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import 'package:halkyon_learn_curator/src/sources/jmdict_xml.dart';
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import 'package:halkyon_learn_curator/src/sources/kanjidic.dart';
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import 'package:halkyon_learn_curator/src/sources/kanjivg.dart';
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import 'package:halkyon_learn_curator/src/sources/krdict.dart';
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import 'package:halkyon_learn_curator/src/sources/makemeahanzi.dart';
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import 'package:halkyon_learn_curator/src/sources/tatoeba.dart';
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import 'package:halkyon_learn_curator/src/sources/unihan.dart';
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import 'package:halkyon_learn_curator/src/sources/wiktionary.dart';
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import 'package:halkyon_learn_curator/src/update.dart';
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import 'package:halkyon_learn_curator/src/wordfreq.dart';
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/// Turns a dictionary download into a dictionary file for the server's
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/// `dictionaries` folder, or KanjiVG into the app's stroke files
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/// (README.md):
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///
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/// dart run halkyon_learn_curator:curate jmdict \
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/// --input JMdict_e_examp.gz --jlpt original_data \
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/// --output jmdict-en.jsonl.gz
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/// dart run halkyon_learn_curator:curate kanjidic \
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/// --input kanjidic2.xml.gz --jlpt kanji.json \
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/// --output kanjidic-en.jsonl.gz
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/// dart run halkyon_learn_curator:curate kanjivg \
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/// --input kanjivg-20260714.xml.gz \
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/// --output ../halkyon_learn_flutter/assets/kanjivg
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///
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/// The Hangul letters' strokes, the curator's own, into the app's stroke
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/// files:
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///
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/// dart run halkyon_learn_curator:curate hangul \
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/// --output ../halkyon_learn_flutter/assets/hangul
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///
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/// Make Me a Hanzi into the app's stroke files of Chinese characters:
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///
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/// dart run halkyon_learn_curator:curate makemeahanzi \
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/// --input graphics.txt --dictionary dictionary.txt \
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/// --output ../halkyon_learn_flutter/assets/makemeahanzi
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///
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/// Wiktionary, as kaikki.org's dump of it, into dictionary files of the
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/// languages named (German and Greek with English meanings, English with
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/// German ones):
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///
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/// dart run halkyon_learn_curator:curate wiktionary \
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/// --input raw-wiktextract-data.jsonl.gz --languages de,el,en \
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/// --output ../halkyon_learn_server/dictionaries
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///
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/// MeCab's compiled IPADIC into the pack the app's devices download (ADR
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/// 0012), from Ubuntu's `mecab-ipadic-utf8` unless another folder is given
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/// (`update` packs it too, where that package is installed):
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///
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/// dart run halkyon_learn_curator:curate ipadic \
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/// [--input /var/lib/mecab/dic/ipadic-utf8] \
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/// --output ../halkyon_learn_server/dictionaries
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///
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/// CC-CEDICT into its two dictionary files, simplified and traditional:
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///
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/// dart run halkyon_learn_curator:curate cedict \
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/// --input cedict_1_0_ts_utf-8_mdbg.txt.gz \
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/// --output ../halkyon_learn_server/dictionaries
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///
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/// Unihan into dictionary files of Chinese characters (simplified and
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/// traditional) and of Korean Hanja, for the languages named, the Hanja's
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/// native readings from a Wiktionary update's `.wiktionary-ko.json.gz`:
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///
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/// dart run halkyon_learn_curator:curate unihan \
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/// --input Unihan.zip --languages ko,zh [--cedict <file>] \
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/// [--korean <file>] \
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/// --output ../halkyon_learn_server/dictionaries
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///
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/// KRDict's JSON export into the dictionary file of Korean words, with
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/// the forms of each a Wiktionary update kept (`.wiktionary-ko.json.gz`):
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///
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/// dart run halkyon_learn_curator:curate krdict \
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/// --input krdict_json_20260919.zip [--korean <file>] \
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/// --output ../halkyon_learn_server/dictionaries
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///
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/// Tatoeba's sentences as examples into a dictionary file of words (its
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/// exports of the dictionary's language, of its meaning language, and of
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/// the links between them, bzip2 or not):
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///
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/// dart run halkyon_learn_curator:curate tatoeba \
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/// --input wiktionary-de-en.jsonl.gz --sentences deu_sentences.tsv.bz2 \
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/// --translations eng_sentences.tsv.bz2 --links deu-eng_links.tsv.bz2 \
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/// --output wiktionary-de-en.jsonl.gz
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///
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/// Or brings a server's dictionaries up to date from EDRDG's files of the
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/// day and, for the languages named, Wiktionary's latest dump and MDBG's
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/// CC-CEDICT of the day (Chinese), once or every so many days:
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///
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/// dart run halkyon_learn_curator:curate update \
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/// --into ../halkyon_learn_server/dictionaries [--every 7] \
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/// [--languages de,el,en,zh]
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Future<void> main(List<String> args) async {
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final parser = ArgParser()
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..addOption(
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'input',
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abbr: 'i',
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help: 'The source file, unpacked or gzipped (.gz).',
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)
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..addOption(
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'jlpt',
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help:
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"jmdict: yomitan-jlpt-vocab's original_data folder (n1.csv … "
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"n5.csv); kanjidic: kanji-data's kanji.json.",
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)
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..addFlag(
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'examples',
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help:
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"The input is JMdict's examples edition (EDRDG's "
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"JMdict_e_examp.gz, jmdict-simplified's jmdict-examples-eng-*.json): "
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'credit Tatoeba for its sentences. On by default for a file named '
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'so.',
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defaultsTo: null,
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)
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..addOption(
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'output',
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abbr: 'o',
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help:
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'The dictionary file to write, gzipped when it ends in .gz; for '
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'kanjivg the folder to write the stroke files into.',
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)
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..addOption('into', help: 'update: the folder of the dictionary files.')
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..addOption(
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'data',
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help: "update: the curator's data folder (the JLPT lists).",
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defaultsTo: 'data',
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)
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..addOption(
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'every',
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help:
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'update: keep running, and update once the files are this many '
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'days old.',
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)
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..addOption(
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'languages',
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help:
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'wiktionary: the languages to write dictionaries of, by their '
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'BCP 47 tags (de,el,en); update: the languages besides Japanese '
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'to keep current (de,el,en,zh; Chinese from CC-CEDICT, the rest '
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"from Wiktionary's dump), none without.",
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)
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..addOption(
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'sentences',
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help: "tatoeba: Tatoeba's sentences in the dictionary's language.",
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)
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..addOption(
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'translations',
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help: "tatoeba: Tatoeba's sentences in the meaning language.",
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)
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..addOption(
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'links',
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help: "tatoeba: Tatoeba's links between the two languages.",
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)
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..addOption(
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'cedict',
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help:
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'unihan: CC-CEDICT, whose words tell traditional characters in use '
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'and rank the characters.',
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)
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..addOption(
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'dictionary',
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help: "makemeahanzi: its dictionary.txt, for the characters' components.",
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)
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..addOption(
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'korean',
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help:
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'unihan, krdict: what a Wiktionary update kept for Korean '
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"(.wiktionary-ko.json.gz: the Hanja's native readings, the "
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"words' forms).",
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)
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..addOption(
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'version',
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help:
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"wiktionary: the dump's date (2026-10-03); the input file's date "
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'without.',
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);
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final ArgResults options;
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try {
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options = parser.parse(args);
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} on FormatException catch (error) {
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_fail('${error.message}\n${parser.usage}');
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}
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final [source, ...] = options.rest.isEmpty ? [''] : options.rest;
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if (source == 'update') {
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final into = options.option('into');
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final every = options.option('every');
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final days = every == null ? null : int.tryParse(every);
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if (into == null || (every != null && (days == null || days < 1))) {
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_fail(
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'Usage: curate update --into <folder> [--data <folder>] '
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'[--every <days>] [--languages <languages>]\n${parser.usage}',
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);
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}
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await _update(
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Directory(into),
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Directory(options.option('data')!),
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days,
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languages: _languages(options.option('languages')),
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// Without --languages, the files of other languages are left as
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// they are: an operator may keep them up to date otherwise.
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removesOthers: options.option('languages') != null,
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);
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return;
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}
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if (source == 'ipadic') {
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final output = options.option('output');
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if (output == null) {
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_fail(
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'Usage: curate ipadic [--input <compiled IPADIC>] --output <folder>'
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'\n${parser.usage}',
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);
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}
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final packed = await packIpadic(
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Directory(options.option('input') ?? systemIpadic),
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Directory(output),
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licence: File(systemIpadicLicence),
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);
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stdout.writeln(
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packed == null
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? '$ipadicFile in $output is up to date.'
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: 'Wrote ${packed.path}.',
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);
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return;
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}
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if (source == 'tatoeba') {
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final input = options.option('input');
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final output = options.option('output');
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final files = [
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for (final name in ['sentences', 'translations', 'links'])
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options.option(name),
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];
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if (input == null || output == null || files.contains(null)) {
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_fail(
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'Usage: curate tatoeba --input <dictionary> --sentences <file> '
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'--translations <file> --links <file> --output <dictionary>'
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'\n${parser.usage}',
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);
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}
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Stream<String> lines(String path) {
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final bytes = path.endsWith('.bz2')
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? Stream.value(
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BZip2Decoder().decodeBytes(File(path).readAsBytesSync()),
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)
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: File(path).openRead();
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return bytes.transform(utf8.decoder).transform(const LineSplitter());
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}
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final links = await readTatoebaLinks(lines(files[2]!));
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final sentences = await readTatoebaSentences(
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lines(files[0]!),
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wanted: links.containsKey,
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);
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final linked = {for (final ids in links.values) ...ids};
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final translations = await readTatoebaSentences(
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lines(files[1]!),
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wanted: linked.contains,
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);
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final written = File('$output.part');
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final bytes = withTatoebaExamples(
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File(input),
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sentences: sentences,
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translations: translations,
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links: links,
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).transform(utf8.encoder);
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await (output.endsWith('.gz') ? bytes.transform(gzip.encoder) : bytes).pipe(
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written.openWrite(),
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);
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await written.rename(output);
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stdout.writeln(
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'Wrote $output with ${sentences.length} sentences of Tatoeba to '
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'choose from.',
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);
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return;
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}
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if (source == 'cedict') {
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final input = options.option('input');
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final output = options.option('output');
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if (input == null || output == null) {
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_fail(
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'Usage: curate cedict --input <file> --output <folder> '
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'[--data <folder>]\n${parser.usage}',
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);
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}
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final read = File(input).openRead();
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final text =
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await (input.endsWith('.gz') ? read.transform(gzip.decoder) : read)
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.transform(utf8.decoder)
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.join();
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final data = options.option('data')!;
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final hsk = await readHskLevels(hskFile(Directory(data)));
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final frequencies = File('$data/wordfreq/small_zh.msgpack.gz');
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final words = frequencies.existsSync()
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? await WordFrequencies.read(frequencies)
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: WordFrequencies.none;
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final folder = await Directory(output).create(recursive: true);
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for (final traditional in [false, true]) {
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await Stream.fromIterable(
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cedictDictionary(
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text,
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traditional: traditional,
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hsk: hsk,
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frequencies: words,
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),
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)
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.transform(utf8.encoder)
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.transform(gzip.encoder)
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.pipe(
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File('${folder.path}/${cedictFileName(traditional: traditional)}')
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.openWrite(),
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);
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}
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stdout.writeln(
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'Wrote ${cedictFileName(traditional: false)} and '
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'${cedictFileName(traditional: true)} to $output.',
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);
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return;
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}
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if (source == 'krdict') {
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final input = options.option('input');
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final output = options.option('output');
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if (input == null || output == null) {
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_fail(
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'Usage: curate krdict --input <zip> --output <folder> '
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'[--korean <file>] [--data <folder>]\n${parser.usage}',
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);
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}
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final korean = options.option('korean');
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final frequencies = File(
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'${options.option('data')}/wordfreq/small_ko.msgpack.gz',
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);
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final folder = await Directory(output).create(recursive: true);
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final (:version, :entries) = krdictExport(await File(input).readAsBytes());
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await krdictDictionary(
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entries,
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sourceVersion: version,
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frequencies: frequencies.existsSync()
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? await WordFrequencies.read(frequencies)
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: null,
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korean: korean == null
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? null
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: WiktionaryKorean.fromJson(
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utf8.decode(gzip.decode(await File(korean).readAsBytes())),
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),
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)
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.transform(utf8.encoder)
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.transform(gzip.encoder)
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.pipe(File('${folder.path}/$krdictFileName').openWrite());
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stdout.writeln('Wrote $krdictFileName to $output.');
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return;
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}
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if (source == 'unihan') {
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final input = options.option('input');
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final output = options.option('output');
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final languages = _languages(options.option('languages'));
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if (input == null || output == null || languages.isEmpty) {
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_fail(
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'Usage: curate unihan --input <Unihan.zip> --languages <languages> '
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'--output <folder> [--cedict <file>] [--korean <file>] '
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'[--data <folder>]'
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'\n${parser.usage}',
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);
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}
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final korean = options.option('korean');
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final cedict = options.option('cedict');
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final written = await unihanDictionaries(
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await File(input).readAsBytes(),
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into: await Directory(output).create(recursive: true),
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languages: languages,
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data: Directory(options.option('data')!),
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cedict: cedict == null
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? null
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: await (cedict.endsWith('.gz')
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? File(cedict).openRead().transform(gzip.decoder)
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: File(cedict).openRead())
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.transform(utf8.decoder)
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.join(),
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eumhun: korean == null
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? const {}
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: WiktionaryKorean.fromJson(
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utf8.decode(gzip.decode(await File(korean).readAsBytes())),
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).hanja,
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);
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stdout.writeln(
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'Wrote ${[for (final file in written) file.uri.pathSegments.last].join(', ')} '
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'to $output.',
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);
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return;
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}
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if (source == 'wiktionary') {
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final input = options.option('input');
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final output = options.option('output');
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final languages = _languages(options.option('languages'));
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if (input == null || output == null || languages.isEmpty) {
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_fail(
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'Usage: curate wiktionary --input <file> --languages <languages> '
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'--output <folder> [--version <date>] [--data <folder>]'
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'\n${parser.usage}',
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);
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}
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final read = File(input).openRead();
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final outputs = wiktionaryOutputs(languages);
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final data = options.option('data')!;
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final written = await wiktionaryDictionaries(
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(input.endsWith('.gz') ? read.transform(gzip.decoder) : read)
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.transform(utf8.decoder)
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.transform(const LineSplitter()),
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into: Directory(output),
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sourceVersion:
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options.option('version') ??
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File(input).lastModifiedSync().toIso8601String().substring(0, 10),
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languages: outputs.languages,
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translatedInto: outputs.translatedInto,
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frequencies: {
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for (final language in {...languages, 'en'})
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if (File('$data/wordfreq/small_$language.msgpack.gz') case final file
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when file.existsSync())
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language: await WordFrequencies.read(file),
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},
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);
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stdout.writeln(
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'Wrote ${[for (final file in written) file.uri.pathSegments.last].join(', ')} '
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'to $output.',
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);
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return;
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}
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if (source == 'hangul') {
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final output = options.option('output');
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if (output == null) {
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_fail('Usage: curate hangul --output <folder>\n${parser.usage}');
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}
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final strokes = hangulStrokes();
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final folder = await Directory(output).create(recursive: true);
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final files = strokeFiles(strokes);
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for (final MapEntry(key: name, value: characters) in files.entries) {
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await File('${folder.path}/$name.json.gz')
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.writeAsBytes(gzip.encode(utf8.encode(jsonEncode(characters))));
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}
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stdout.writeln(
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'Wrote the strokes of ${strokes.length} Hangul letters to $output.',
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);
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return;
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}
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if (source == 'makemeahanzi') {
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final input = options.option('input');
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final dictionary = options.option('dictionary');
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final output = options.option('output');
|
|
if (input == null || output == null) {
|
|
_fail(
|
|
'Usage: curate makemeahanzi --input graphics.txt '
|
|
'[--dictionary dictionary.txt] --output <folder>\n${parser.usage}',
|
|
);
|
|
}
|
|
final strokes = makemeahanziStrokes(
|
|
await File(input).readAsLines(),
|
|
dictionary: dictionary == null
|
|
? const []
|
|
: await File(dictionary).readAsLines(),
|
|
);
|
|
final folder = await Directory(output).create(recursive: true);
|
|
final files = strokeFiles(
|
|
strokes,
|
|
notice: makemeahanziNotice(
|
|
DateTime.now().toUtc().toIso8601String().substring(0, 10),
|
|
),
|
|
);
|
|
for (final MapEntry(key: name, value: characters) in files.entries) {
|
|
await File('${folder.path}/$name.json.gz')
|
|
.writeAsBytes(gzip.encode(utf8.encode(jsonEncode(characters))));
|
|
}
|
|
stdout.writeln(
|
|
'Wrote the strokes of ${strokes.length} characters to '
|
|
'${files.length} files in $output.',
|
|
);
|
|
return;
|
|
}
|
|
final input = options.option('input');
|
|
final output = options.option('output');
|
|
if (!['jmdict', 'kanjidic', 'kanjivg'].contains(source) ||
|
|
input == null ||
|
|
output == null) {
|
|
_fail(
|
|
'Usage: curate jmdict|kanjidic|kanjivg --input <file> [--jlpt <path>] '
|
|
'--output <path>\n${parser.usage}',
|
|
);
|
|
}
|
|
final read = File(input).openRead();
|
|
final text = (input.endsWith('.gz') ? read.transform(gzip.decoder) : read)
|
|
.transform(utf8.decoder);
|
|
final jlptPath = options.option('jlpt');
|
|
|
|
if (source == 'kanjivg') {
|
|
final strokes = kanjivgStrokes(await text.join());
|
|
final folder = await Directory(output).create(recursive: true);
|
|
final files = strokeFiles(strokes);
|
|
for (final MapEntry(key: name, value: characters) in files.entries) {
|
|
await File('${folder.path}/$name.json.gz')
|
|
.writeAsBytes(gzip.encode(utf8.encode(jsonEncode(characters))));
|
|
}
|
|
stdout.writeln(
|
|
'Wrote the strokes of ${strokes.length} characters to '
|
|
'${files.length} files in $output.',
|
|
);
|
|
return;
|
|
}
|
|
|
|
final Stream<String> lines;
|
|
final int withLevel;
|
|
if (source == 'kanjidic') {
|
|
final jlpt = jlptPath == null
|
|
? const <String, int>{}
|
|
: await readKanjiJlpt(File(jlptPath));
|
|
lines = Stream.fromIterable(
|
|
kanjidicDictionary(await text.join(), jlpt: jlpt),
|
|
);
|
|
withLevel = jlpt.length;
|
|
} else {
|
|
final jlpt = jlptPath == null
|
|
? const <String, JlptLevel>{}
|
|
: await readJlptLevels(Directory(jlptPath));
|
|
final name = File(input).uri.pathSegments.last;
|
|
final examples = options.wasParsed('examples')
|
|
? options.flag('examples')
|
|
: name.contains('examp');
|
|
// jmdict-simplified's JSON (`jmdict-eng-….json`), else EDRDG's XML.
|
|
lines = name.contains('.json')
|
|
? jmdictDictionary(text, jlpt: jlpt, examples: examples)
|
|
: jmdictXmlDictionary(text, jlpt: jlpt, examples: examples);
|
|
withLevel = jlpt.length;
|
|
}
|
|
var entries = -1;
|
|
final bytes = lines
|
|
.map((line) {
|
|
entries++;
|
|
return line;
|
|
})
|
|
.transform(utf8.encoder);
|
|
await (output.endsWith('.gz') ? bytes.transform(gzip.encoder) : bytes).pipe(
|
|
File(output).openWrite(),
|
|
);
|
|
stdout.writeln(
|
|
'Wrote $entries entries to $output'
|
|
'${withLevel == 0 ? '' : ' ($withLevel with a JLPT level)'}.',
|
|
);
|
|
}
|
|
|
|
/// Updates the dictionaries in [into]; with [every], keeps running and
|
|
/// updates them whenever they are that many days old (as the files' dates
|
|
/// say, so a restart doesn't download them again), trying again after six
|
|
/// hours when an update fails. Of [languages], Chinese comes from
|
|
/// CC-CEDICT as often as EDRDG's files, and its characters from Unihan;
|
|
/// Korean from KRDict, looked at each time it wakes and converted again
|
|
/// only when it offers another export, and its Hanja from Unihan; the rest
|
|
/// from Wiktionary, looked at each time it wakes and converted again only
|
|
/// when the dump is newer (Korean's forms and the Hanja's readings come
|
|
/// from it too); Greek's alphabet with the characters. Files of languages
|
|
/// no longer kept go.
|
|
Future<void> _update(
|
|
Directory into,
|
|
Directory data,
|
|
int? every, {
|
|
Set<String> languages = const {},
|
|
bool removesOthers = true,
|
|
}) async {
|
|
final (:wiktionary, :chinese, :korean, :greek) = dictionarySources(languages);
|
|
void say(String message) =>
|
|
stdout.writeln('${DateTime.now().toUtc().toIso8601String()} $message');
|
|
void written(List<File> files) {
|
|
if (files.isNotEmpty) {
|
|
say(
|
|
'Updated ${[for (final file in files) file.uri.pathSegments.last].join(', ')}.',
|
|
);
|
|
}
|
|
}
|
|
|
|
/// Runs [step], saying what it wrote; false when it failed.
|
|
Future<bool> attempt(String name, Future<List<File>> Function() step) async {
|
|
try {
|
|
written(await step());
|
|
return true;
|
|
} on Object catch (error) {
|
|
say('Updating $name failed: $error');
|
|
return false;
|
|
}
|
|
}
|
|
|
|
Future<bool> once() => attempt(
|
|
'the dictionaries',
|
|
() => updateDictionaries(into: into, data: data),
|
|
);
|
|
|
|
// Files as old as EDRDG's may be: CC-CEDICT's, and the characters'.
|
|
bool due(DateTime? updated) =>
|
|
updated == null ||
|
|
DateTime.now().difference(updated) >= Duration(days: every ?? 1);
|
|
Future<bool> chineseOnce() async =>
|
|
!chinese ||
|
|
!due(cedictUpdated(into)) ||
|
|
await attempt('CC-CEDICT', () => updateCedict(into: into, data: data));
|
|
Future<bool> wiktionaryOnce() => attempt(
|
|
'Wiktionary',
|
|
() => updateWiktionary(
|
|
into: into,
|
|
data: data,
|
|
languages: wiktionary,
|
|
korean: korean,
|
|
),
|
|
);
|
|
Future<bool> koreanOnce() async =>
|
|
!korean ||
|
|
await attempt('KRDict', () => updateKrdict(into: into, data: data));
|
|
Future<bool> charactersOnce() async =>
|
|
!due(
|
|
charactersUpdated(into, chinese: chinese, korean: korean, greek: greek),
|
|
) ||
|
|
await attempt(
|
|
'the characters',
|
|
() => updateCharacters(
|
|
into: into,
|
|
data: data,
|
|
chinese: chinese,
|
|
korean: korean,
|
|
greek: greek,
|
|
),
|
|
);
|
|
// MeCab's IPADIC for the devices, where the image installed it; packed
|
|
// again only when it changed.
|
|
Future<bool> ipadicOnce() async =>
|
|
!Directory(systemIpadic).existsSync() ||
|
|
await attempt('IPADIC', () async {
|
|
final packed = await packIpadic(
|
|
Directory(systemIpadic),
|
|
into,
|
|
licence: File(systemIpadicLicence),
|
|
);
|
|
return [?packed];
|
|
});
|
|
// In this order: Korean's words and Hanja take what Wiktionary kept.
|
|
// What is no longer wanted goes last, once what replaces it is there.
|
|
Future<bool> languagesOnce() async {
|
|
final done =
|
|
!(!await chineseOnce() |
|
|
!await wiktionaryOnce() |
|
|
!await koreanOnce() |
|
|
!await charactersOnce() |
|
|
!await ipadicOnce());
|
|
final removed = removesOthers
|
|
? removeUnwanted(into, languages)
|
|
: const <File>[];
|
|
if (removed.isNotEmpty) {
|
|
say(
|
|
'Removed ${[for (final file in removed) file.uri.pathSegments.last].join(', ')}.',
|
|
);
|
|
}
|
|
return done;
|
|
}
|
|
|
|
if (every == null) {
|
|
if (!await once() || !await languagesOnce()) {
|
|
exit(1);
|
|
}
|
|
return;
|
|
}
|
|
for (;;) {
|
|
final due = lastUpdated(into)?.add(Duration(days: every));
|
|
final now = DateTime.now();
|
|
if (due == null || !now.isBefore(due)) {
|
|
if (!await once()) {
|
|
await Future<void>.delayed(const Duration(hours: 6));
|
|
}
|
|
continue;
|
|
}
|
|
final retry = !await languagesOnce();
|
|
final next = retry && due.difference(now) > const Duration(hours: 6)
|
|
? DateTime.now().add(const Duration(hours: 6))
|
|
: due;
|
|
say('Up to date; the next look ${next.toUtc().toIso8601String()}.');
|
|
await Future<void>.delayed(next.difference(DateTime.now()));
|
|
}
|
|
}
|
|
|
|
/// The languages a comma-separated list names (`de,el,en`).
|
|
Set<String> _languages(String? list) => {
|
|
for (final language in (list ?? '').split(','))
|
|
if (language.trim().isNotEmpty) language.trim(),
|
|
};
|
|
|
|
Never _fail(String message) {
|
|
stderr.writeln(message);
|
|
exit(64);
|
|
}
|