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/*
* Copyright (C) 2016-2020 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 handlebarsEscape(text) {
return Handlebars.Utils.escapeExpression(text);
}
function handlebarsDumpObject(options) {
const dump = JSON.stringify(options.fn(this), null, 4);
return handlebarsEscape(dump);
}
function handlebarsFurigana(options) {
const definition = options.fn(this);
const segs = jpDistributeFurigana(definition.expression, definition.reading);
let result = '';
for (const seg of segs) {
if (seg.furigana) {
result += `<ruby>${seg.text}<rt>${seg.furigana}</rt></ruby>`;
} else {
result += seg.text;
}
}
return result;
}
function handlebarsFuriganaPlain(options) {
const definition = options.fn(this);
const segs = jpDistributeFurigana(definition.expression, definition.reading);
let result = '';
for (const seg of segs) {
if (seg.furigana) {
result += ` ${seg.text}[${seg.furigana}]`;
} else {
result += seg.text;
}
}
return result.trimLeft();
}
function handlebarsKanjiLinks(options) {
let result = '';
for (const c of options.fn(this)) {
if (jpIsKanji(c)) {
result += `<a href="#" class="kanji-link">${c}</a>`;
} else {
result += c;
}
}
return result;
}
function handlebarsMultiLine(options) {
return options.fn(this).split('\n').join('<br>');
}
function handlebarsSanitizeCssClass(options) {
return options.fn(this).replace(/[^_a-z0-9\u00a0-\uffff]/ig, '_');
}
function handlebarsRegexReplace(...args) {
// Usage:
// {{#regexReplace regex string [flags]}}content{{/regexReplace}}
// regex: regular expression string
// string: string to replace
// flags: optional flags for regular expression
// e.g. "i" for case-insensitive, "g" for replace all
let value = args[args.length - 1].fn(this);
if (args.length >= 3) {
try {
const flags = args.length > 3 ? args[2] : 'g';
const regex = new RegExp(args[0], flags);
value = value.replace(regex, args[1]);
} catch (e) {
return `${e}`;
}
}
return value;
}
function handlebarsRegexMatch(...args) {
// Usage:
// {{#regexMatch regex [flags]}}content{{/regexMatch}}
// regex: regular expression string
// flags: optional flags for regular expression
// e.g. "i" for case-insensitive, "g" for match all
let value = args[args.length - 1].fn(this);
if (args.length >= 2) {
try {
const flags = args.length > 2 ? args[1] : '';
const regex = new RegExp(args[0], flags);
const parts = [];
value.replace(regex, (g0) => parts.push(g0));
value = parts.join('');
} catch (e) {
return `${e}`;
}
}
return value;
}
function handlebarsRegisterHelpers() {
if (Handlebars.partials !== Handlebars.templates) {
Handlebars.partials = Handlebars.templates;
Handlebars.registerHelper('dumpObject', handlebarsDumpObject);
Handlebars.registerHelper('furigana', handlebarsFurigana);
Handlebars.registerHelper('furiganaPlain', handlebarsFuriganaPlain);
Handlebars.registerHelper('kanjiLinks', handlebarsKanjiLinks);
Handlebars.registerHelper('multiLine', handlebarsMultiLine);
Handlebars.registerHelper('sanitizeCssClass', handlebarsSanitizeCssClass);
Handlebars.registerHelper('regexReplace', handlebarsRegexReplace);
Handlebars.registerHelper('regexMatch', handlebarsRegexMatch);
}
}
function handlebarsRenderStatic(name, data) {
handlebarsRegisterHelpers();
return Handlebars.templates[name](data).trim();
}
function handlebarsRenderDynamic(template, data) {
handlebarsRegisterHelpers();
const cache = handlebarsRenderDynamic._cache;
let instance = cache.get(template);
if (typeof instance === 'undefined') {
instance = Handlebars.compile(template);
cache.set(template, instance);
}
return instance(data).trim();
}
handlebarsRenderDynamic._cache = new Map();
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