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diff --git a/ext/bg/js/dictionary.js b/ext/bg/js/dictionary.js
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+/*
+ * Copyright (C) 2016 Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+function dictEnabledSet(options) {
+ const dictionaries = {};
+ for (const title in options.dictionaries) {
+ const dictionary = options.dictionaries[title];
+ if (dictionary.enabled) {
+ dictionaries[title] = dictionary;
+ }
+ }
+
+ return dictionaries;
+}
+
+function dictConfigured(options) {
+ for (const title in options.dictionaries) {
+ if (options.dictionaries[title].enabled) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+function dictRowsSort(rows, options) {
+ return rows.sort((ra, rb) => {
+ const pa = (options.dictionaries[ra.title] || {}).priority || 0;
+ const pb = (options.dictionaries[rb.title] || {}).priority || 0;
+ if (pa > pb) {
+ return -1;
+ } else if (pa < pb) {
+ return 1;
+ } else {
+ return 0;
+ }
+ });
+}
+
+function dictTermsSort(definitions, dictionaries=null) {
+ return definitions.sort((v1, v2) => {
+ const sl1 = v1.source.length;
+ const sl2 = v2.source.length;
+ if (sl1 > sl2) {
+ return -1;
+ } else if (sl1 < sl2) {
+ return 1;
+ }
+
+ if (dictionaries !== null) {
+ const p1 = (dictionaries[v1.dictionary] || {}).priority || 0;
+ const p2 = (dictionaries[v2.dictionary] || {}).priority || 0;
+ if (p1 > p2) {
+ return -1;
+ } else if (p1 < p2) {
+ return 1;
+ }
+ }
+
+ const s1 = v1.score;
+ const s2 = v2.score;
+ if (s1 > s2) {
+ return -1;
+ } else if (s1 < s2) {
+ return 1;
+ }
+
+ const rl1 = v1.reasons.length;
+ const rl2 = v2.reasons.length;
+ if (rl1 < rl2) {
+ return -1;
+ } else if (rl1 > rl2) {
+ return 1;
+ }
+
+ return v2.expression.localeCompare(v1.expression);
+ });
+}
+
+function dictTermsUndupe(definitions) {
+ const definitionGroups = {};
+ for (const definition of definitions) {
+ const definitionExisting = definitionGroups[definition.id];
+ if (!definitionGroups.hasOwnProperty(definition.id) || definition.expression.length > definitionExisting.expression.length) {
+ definitionGroups[definition.id] = definition;
+ }
+ }
+
+ const definitionsUnique = [];
+ for (const key in definitionGroups) {
+ definitionsUnique.push(definitionGroups[key]);
+ }
+
+ return definitionsUnique;
+}
+
+function dictTermsGroup(definitions, dictionaries) {
+ const groups = {};
+ for (const definition of definitions) {
+ const key = [definition.source, definition.expression].concat(definition.reasons);
+ if (definition.reading) {
+ key.push(definition.reading);
+ }
+
+ const group = groups[key];
+ if (group) {
+ group.push(definition);
+ } else {
+ groups[key] = [definition];
+ }
+ }
+
+ const results = [];
+ for (const key in groups) {
+ const groupDefs = groups[key];
+ const firstDef = groupDefs[0];
+ dictTermsSort(groupDefs, dictionaries);
+ results.push({
+ definitions: groupDefs,
+ expression: firstDef.expression,
+ reading: firstDef.reading,
+ reasons: firstDef.reasons,
+ score: groupDefs.reduce((p, v) => v.score > p ? v.score : p, Number.MIN_SAFE_INTEGER),
+ source: firstDef.source
+ });
+ }
+
+ return dictTermsSort(results);
+}
+
+function dictTagBuildSource(name) {
+ return dictTagSanitize({name, category: 'dictionary', order: 100});
+}
+
+function dictTagBuild(name, meta) {
+ const tag = {name};
+ const symbol = name.split(':')[0];
+ for (const prop in meta[symbol] || {}) {
+ tag[prop] = meta[symbol][prop];
+ }
+
+ return dictTagSanitize(tag);
+}
+
+function dictTagSanitize(tag) {
+ tag.name = tag.name || 'untitled';
+ tag.category = tag.category || 'default';
+ tag.notes = tag.notes || '';
+ tag.order = tag.order || 0;
+ return tag;
+}
+
+function dictTagsSort(tags) {
+ return tags.sort((v1, v2) => {
+ const order1 = v1.order;
+ const order2 = v2.order;
+ if (order1 < order2) {
+ return -1;
+ } else if (order1 > order2) {
+ return 1;
+ }
+
+ const name1 = v1.name;
+ const name2 = v2.name;
+ if (name1 < name2) {
+ return -1;
+ } else if (name1 > name2) {
+ return 1;
+ }
+
+ return 0;
+ });
+}
+
+function dictFieldSplit(field) {
+ return field.length === 0 ? [] : field.split(' ');
+}
+
+function dictFieldFormat(field, definition, mode, options) {
+ const markers = [
+ 'audio',
+ 'character',
+ 'cloze-body',
+ 'cloze-prefix',
+ 'cloze-suffix',
+ 'dictionary',
+ 'expression',
+ 'furigana',
+ 'glossary',
+ 'glossary-brief',
+ 'kunyomi',
+ 'onyomi',
+ 'reading',
+ 'sentence',
+ 'tags',
+ 'url'
+ ];
+
+ for (const marker of markers) {
+ const data = {
+ marker,
+ definition,
+ group: options.general.groupResults,
+ html: options.anki.htmlCards,
+ modeTermKanji: mode === 'term-kanji',
+ modeTermKana: mode === 'term-kana',
+ modeKanji: mode === 'kanji'
+ };
+
+ field = field.replace(
+ `{${marker}}`,
+ Handlebars.templates['fields.html'](data).trim()
+ );
+ }
+
+ return field;
+}