summaryrefslogtreecommitdiff
path: root/ext/mixed/js/dictionary-data-util.js
diff options
context:
space:
mode:
Diffstat (limited to 'ext/mixed/js/dictionary-data-util.js')
-rw-r--r--ext/mixed/js/dictionary-data-util.js101
1 files changed, 101 insertions, 0 deletions
diff --git a/ext/mixed/js/dictionary-data-util.js b/ext/mixed/js/dictionary-data-util.js
new file mode 100644
index 00000000..65ad51a1
--- /dev/null
+++ b/ext/mixed/js/dictionary-data-util.js
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2020 Yomichan Authors
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+
+class DictionaryDataUtil {
+ static getPitchAccentInfos(definition) {
+ const results = new Map();
+ const allExpressions = new Set();
+ const allReadings = new Set();
+ const expressions = definition.expressions;
+ const sources = Array.isArray(expressions) ? expressions : [definition];
+
+ for (const {pitches: expressionPitches, expression} of sources) {
+ allExpressions.add(expression);
+
+ for (const {reading, pitches, dictionary} of expressionPitches) {
+ allReadings.add(reading);
+
+ let dictionaryResults = results.get(dictionary);
+ if (typeof dictionaryResults === 'undefined') {
+ dictionaryResults = [];
+ results.set(dictionary, dictionaryResults);
+ }
+
+ for (const {position, tags} of pitches) {
+ let pitchAccentInfo = this._findExistingPitchAccentInfo(reading, position, tags, dictionaryResults);
+ if (pitchAccentInfo === null) {
+ pitchAccentInfo = {expressions: new Set(), reading, position, tags};
+ dictionaryResults.push(pitchAccentInfo);
+ }
+ pitchAccentInfo.expressions.add(expression);
+ }
+ }
+ }
+
+ const multipleReadings = (allReadings.size > 1);
+ for (const dictionaryResults of results.values()) {
+ for (const result of dictionaryResults) {
+ const exclusiveExpressions = [];
+ const exclusiveReadings = [];
+ const resultExpressions = result.expressions;
+ if (!areSetsEqual(resultExpressions, allExpressions)) {
+ exclusiveExpressions.push(...getSetIntersection(resultExpressions, allExpressions));
+ }
+ if (multipleReadings) {
+ exclusiveReadings.push(result.reading);
+ }
+ result.expressions = [...resultExpressions];
+ result.exclusiveExpressions = exclusiveExpressions;
+ result.exclusiveReadings = exclusiveReadings;
+ }
+ }
+
+ const results2 = [];
+ for (const [dictionary, pitches] of results.entries()) {
+ results2.push({dictionary, pitches});
+ }
+ return results2;
+ }
+
+ static _findExistingPitchAccentInfo(reading, position, tags, pitchAccentInfoList) {
+ for (const pitchInfo of pitchAccentInfoList) {
+ if (
+ pitchInfo.reading === reading &&
+ pitchInfo.position === position &&
+ this._areTagListsEqual(pitchInfo.tags, tags)
+ ) {
+ return pitchInfo;
+ }
+ }
+ return null;
+ }
+
+ static _areTagListsEqual(tagList1, tagList2) {
+ const ii = tagList1.length;
+ if (tagList2.length !== ii) { return false; }
+
+ for (let i = 0; i < ii; ++i) {
+ const tag1 = tagList1[i];
+ const tag2 = tagList2[i];
+ if (tag1.name !== tag2.name || tag1.dictionary !== tag2.dictionary) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+}