Add support for some regex functions in handlebars templates

This commit is contained in:
toasted-nutbread 2019-11-08 22:57:20 -05:00
parent 4d7940e8e4
commit b59a5b8cdb

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@ -79,6 +79,47 @@ function handlebarsSanitizeCssClass(options) {
return options.fn(this).replace(/[^_a-z0-9\u00a0-\uffff]/ig, '_'); 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 {
let 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() { function handlebarsRegisterHelpers() {
if (Handlebars.partials !== Handlebars.templates) { if (Handlebars.partials !== Handlebars.templates) {
Handlebars.partials = Handlebars.templates; Handlebars.partials = Handlebars.templates;
@ -88,6 +129,8 @@ function handlebarsRegisterHelpers() {
Handlebars.registerHelper('kanjiLinks', handlebarsKanjiLinks); Handlebars.registerHelper('kanjiLinks', handlebarsKanjiLinks);
Handlebars.registerHelper('multiLine', handlebarsMultiLine); Handlebars.registerHelper('multiLine', handlebarsMultiLine);
Handlebars.registerHelper('sanitizeCssClass', handlebarsSanitizeCssClass); Handlebars.registerHelper('sanitizeCssClass', handlebarsSanitizeCssClass);
Handlebars.registerHelper('regexReplace', handlebarsRegexReplace);
Handlebars.registerHelper('regexMatch', handlebarsRegexMatch);
} }
} }