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Diffstat (limited to 'ext/bg/js/template-patcher.js')
-rw-r--r-- | ext/bg/js/template-patcher.js | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/ext/bg/js/template-patcher.js b/ext/bg/js/template-patcher.js deleted file mode 100644 index 57178957..00000000 --- a/ext/bg/js/template-patcher.js +++ /dev/null @@ -1,92 +0,0 @@ -/* - * 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; - } -} |