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-rw-r--r--ext/bg/js/options.js40
-rw-r--r--ext/bg/js/template-patcher.js92
2 files changed, 108 insertions, 24 deletions
diff --git a/ext/bg/js/options.js b/ext/bg/js/options.js
index 02caa5a2..9e0e9cf0 100644
--- a/ext/bg/js/options.js
+++ b/ext/bg/js/options.js
@@ -17,11 +17,13 @@
/* global
* JsonSchemaValidator
+ * TemplatePatcher
*/
class OptionsUtil {
constructor() {
this._schemaValidator = new JsonSchemaValidator();
+ this._templatePatcher = null;
this._optionsSchema = null;
}
@@ -381,32 +383,22 @@ class OptionsUtil {
// Private
- async _addFieldTemplatesToOptions(options, additionSourceUrl) {
- let addition = null;
+ async _applyAnkiFieldTemplatesPatch(options, modificationsUrl) {
+ let patch = null;
for (const {options: profileOptions} of options.profiles) {
const fieldTemplates = profileOptions.anki.fieldTemplates;
- if (fieldTemplates !== null) {
- if (addition === null) {
- addition = await this._fetchAsset(additionSourceUrl);
+ if (fieldTemplates === null) { continue; }
+
+ if (patch === null) {
+ const content = await this._fetchAsset(modificationsUrl);
+ if (this._templatePatcher === null) {
+ this._templatePatcher = new TemplatePatcher();
}
- profileOptions.anki.fieldTemplates = this._addFieldTemplatesBeforeEnd(fieldTemplates, addition);
+ patch = this._templatePatcher.parsePatch(content);
}
- }
- }
- _addFieldTemplatesBeforeEnd(fieldTemplates, addition) {
- const pattern = /[ \t]*\{\{~?>\s*\(\s*lookup\s*\.\s*"marker"\s*\)\s*~?\}\}/g;
- const newline = '\n';
- let replaced = false;
- fieldTemplates = fieldTemplates.replace(pattern, (g0) => {
- replaced = true;
- return `${addition}${newline}${g0}`;
- });
- if (!replaced) {
- fieldTemplates += newline;
- fieldTemplates += addition;
+ profileOptions.anki.fieldTemplates = this._templatePatcher.applyPatch(fieldTemplates, patch);
}
- return fieldTemplates;
}
async _fetchAsset(url, json=false) {
@@ -495,7 +487,7 @@ class OptionsUtil {
async _updateVersion3(options) {
// Version 3 changes:
// Pitch accent Anki field templates added.
- await this._addFieldTemplatesToOptions(options, '/bg/data/anki-field-templates-upgrade-v2.handlebars');
+ await this._applyAnkiFieldTemplatesPatch(options, '/bg/data/anki-field-templates-upgrade-v2.handlebars');
return options;
}
@@ -580,7 +572,7 @@ class OptionsUtil {
});
profileOptions.scanning.inputs = scanningInputs;
}
- await this._addFieldTemplatesToOptions(options, '/bg/data/anki-field-templates-upgrade-v4.handlebars');
+ await this._applyAnkiFieldTemplatesPatch(options, '/bg/data/anki-field-templates-upgrade-v4.handlebars');
return options;
}
@@ -600,7 +592,7 @@ class OptionsUtil {
// Added global option useSettingsV2.
// Added anki.checkForDuplicates.
// Added general.glossaryLayoutMode; removed general.compactGlossaries.
- await this._addFieldTemplatesToOptions(options, '/bg/data/anki-field-templates-upgrade-v6.handlebars');
+ await this._applyAnkiFieldTemplatesPatch(options, '/bg/data/anki-field-templates-upgrade-v6.handlebars');
options.global.showPopupPreview = false;
options.global.useSettingsV2 = false;
for (const profile of options.profiles) {
@@ -673,7 +665,7 @@ class OptionsUtil {
// Moved general.enableClipboardMonitor => clipboard.enableSearchPageMonitor. Forced value to false due to a bug which caused its value to not be read.
// Moved general.maximumClipboardSearchLength => clipboard.maximumSearchLength.
// Added clipboard.autoSearchContent.
- await this._addFieldTemplatesToOptions(options, '/bg/data/anki-field-templates-upgrade-v8.handlebars');
+ await this._applyAnkiFieldTemplatesPatch(options, '/bg/data/anki-field-templates-upgrade-v8.handlebars');
options.global.useSettingsV2 = true;
for (const profile of options.profiles) {
profile.options.translation.textReplacements = {
diff --git a/ext/bg/js/template-patcher.js b/ext/bg/js/template-patcher.js
new file mode 100644
index 00000000..57178957
--- /dev/null
+++ b/ext/bg/js/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;
+ }
+}