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authortoasted-nutbread <toasted-nutbread@users.noreply.github.com>2021-02-14 11:19:54 -0500
committerGitHub <noreply@github.com>2021-02-14 11:19:54 -0500
commite419a418f6f03ef0a24330b67e7b76c5e3a7c22d (patch)
treea4c27bdfabc9280d9f6262d93d5152a58de8bc15 /ext/js/templates/template-patcher.js
parent43d1457ebfe23196348649c245dfb942a0f00a1a (diff)
Move bg/js (#1387)
* Move bg/js/anki.js to js/comm/anki.js * Move bg/js/mecab.js to js/comm/mecab.js * Move bg/js/search-main.js to js/display/search-main.js * Move bg/js/template-patcher.js to js/templates/template-patcher.js * Move bg/js/template-renderer-frame-api.js to js/templates/template-renderer-frame-api.js * Move bg/js/template-renderer-frame-main.js to js/templates/template-renderer-frame-main.js * Move bg/js/template-renderer-proxy.js to js/templates/template-renderer-proxy.js * Move bg/js/template-renderer.js to js/templates/template-renderer.js * Move bg/js/media-utility.js to js/media/media-utility.js * Move bg/js/native-simple-dom-parser.js to js/dom/native-simple-dom-parser.js * Move bg/js/simple-dom-parser.js to js/dom/simple-dom-parser.js * Move bg/js/audio-downloader.js to js/media/audio-downloader.js * Move bg/js/deinflector.js to js/language/deinflector.js * Move bg/js/backend.js to js/background/backend.js * Move bg/js/translator.js to js/language/translator.js * Move bg/js/search-display-controller.js to js/display/search-display-controller.js * Move bg/js/request-builder.js to js/background/request-builder.js * Move bg/js/text-source-map.js to js/general/text-source-map.js * Move bg/js/clipboard-reader.js to js/comm/clipboard-reader.js * Move bg/js/clipboard-monitor.js to js/comm/clipboard-monitor.js * Move bg/js/query-parser.js to js/display/query-parser.js * Move bg/js/profile-conditions.js to js/background/profile-conditions.js * Move bg/js/dictionary-database.js to js/language/dictionary-database.js * Move bg/js/dictionary-importer.js to js/language/dictionary-importer.js * Move bg/js/anki-note-builder.js to js/data/anki-note-builder.js * Move bg/js/anki-note-data.js to js/data/anki-note-data.js * Move bg/js/database.js to js/data/database.js * Move bg/js/json-schema.js to js/data/json-schema.js * Move bg/js/options.js to js/data/options-util.js * Move bg/js/background-main.js to js/background/background-main.js * Move bg/js/permissions-util.js to js/data/permissions-util.js * Move bg/js/context-main.js to js/pages/action-popup-main.js * Move bg/js/generic-page-main.js to js/pages/generic-page-main.js * Move bg/js/info-main.js to js/pages/info-main.js * Move bg/js/permissions-main.js to js/pages/permissions-main.js * Move bg/js/welcome-main.js to js/pages/welcome-main.js
Diffstat (limited to 'ext/js/templates/template-patcher.js')
-rw-r--r--ext/js/templates/template-patcher.js92
1 files changed, 92 insertions, 0 deletions
diff --git a/ext/js/templates/template-patcher.js b/ext/js/templates/template-patcher.js
new file mode 100644
index 00000000..57178957
--- /dev/null
+++ b/ext/js/templates/template-patcher.js
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2021 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 TemplatePatcher {
+ constructor() {
+ this._diffPattern1 = /\n?\{\{<<<<<<<\}\}\n/g;
+ this._diffPattern2 = /\n\{\{=======\}\}\n/g;
+ this._diffPattern3 = /\n\{\{>>>>>>>\}\}\n*/g;
+ this._lookupMarkerPattern = /[ \t]*\{\{~?>\s*\(\s*lookup\s*\.\s*"marker"\s*\)\s*~?\}\}/g;
+ }
+
+ parsePatch(content) {
+ const diffPattern1 = this._diffPattern1;
+ const diffPattern2 = this._diffPattern2;
+ const diffPattern3 = this._diffPattern3;
+ const modifications = [];
+ let index = 0;
+
+ while (true) {
+ // Find modification boundaries
+ diffPattern1.lastIndex = index;
+ const m1 = diffPattern1.exec(content);
+ if (m1 === null) { break; }
+
+ diffPattern2.lastIndex = m1.index + m1[0].length;
+ const m2 = diffPattern2.exec(content);
+ if (m2 === null) { break; }
+
+ diffPattern3.lastIndex = m2.index + m2[0].length;
+ const m3 = diffPattern3.exec(content);
+ if (m3 === null) { break; }
+
+ // Construct
+ const current = content.substring(m1.index + m1[0].length, m2.index);
+ const replacement = content.substring(m2.index + m2[0].length, m3.index);
+
+ if (current.length > 0) {
+ modifications.push({current, replacement});
+ }
+
+ // Update
+ content = content.substring(0, m1.index) + content.substring(m3.index + m3[0].length);
+ index = m1.index;
+ }
+
+ return {addition: content, modifications};
+ }
+
+ applyPatch(template, patch) {
+ for (const {current, replacement} of patch.modifications) {
+ let fromIndex = 0;
+ while (true) {
+ const index = template.indexOf(current, fromIndex);
+ if (index < 0) { break; }
+ template = template.substring(0, index) + replacement + template.substring(index + current.length);
+ fromIndex = index + replacement.length;
+ }
+ }
+ template = this._addFieldTemplatesBeforeEnd(template, patch.addition);
+ return template;
+ }
+
+ // Private
+
+ _addFieldTemplatesBeforeEnd(template, addition) {
+ const newline = '\n';
+ let replaced = false;
+ template = template.replace(this._lookupMarkerPattern, (g0) => {
+ replaced = true;
+ return `${addition}${newline}${g0}`;
+ });
+ if (!replaced) {
+ template += newline;
+ template += addition;
+ }
+ return template;
+ }
+}