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authortoasted-nutbread <toasted-nutbread@users.noreply.github.com>2019-11-08 22:57:20 -0500
committertoasted-nutbread <toasted-nutbread@users.noreply.github.com>2019-11-08 22:57:20 -0500
commitb59a5b8cdb9bf8cdc28701e16c3d581fb96f4ef8 (patch)
treea3ffb997d325a9187faa21598bd761beaff03525 /ext/bg/js
parent4d7940e8e4ceb0b90439fc9726339f796ee23940 (diff)
Add support for some regex functions in handlebars templates
Diffstat (limited to 'ext/bg/js')
-rw-r--r--ext/bg/js/handlebars.js43
1 files changed, 43 insertions, 0 deletions
diff --git a/ext/bg/js/handlebars.js b/ext/bg/js/handlebars.js
index fba437da..d6307e1d 100644
--- a/ext/bg/js/handlebars.js
+++ b/ext/bg/js/handlebars.js
@@ -79,6 +79,47 @@ 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 {
+ 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() {
if (Handlebars.partials !== Handlebars.templates) {
Handlebars.partials = Handlebars.templates;
@@ -88,6 +129,8 @@ function handlebarsRegisterHelpers() {
Handlebars.registerHelper('kanjiLinks', handlebarsKanjiLinks);
Handlebars.registerHelper('multiLine', handlebarsMultiLine);
Handlebars.registerHelper('sanitizeCssClass', handlebarsSanitizeCssClass);
+ Handlebars.registerHelper('regexReplace', handlebarsRegexReplace);
+ Handlebars.registerHelper('regexMatch', handlebarsRegexMatch);
}
}