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osr-discourse-src/app/assets/javascripts/discourse/lib/text-direction.js
2020-03-12 13:29:55 -04:00

32 lines
860 B
JavaScript

const ltrChars =
"A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02B8\u0300-\u0590\u0800-\u1FFF\u2C00-\uFB1C\uFDFE-\uFE6F\uFEFD-\uFFFF";
const rtlChars = "\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC";
const rtlDirCheck = new RegExp("^[^" + ltrChars + "]*[" + rtlChars + "]");
const ltrDirCheck = new RegExp("^[^" + rtlChars + "]*[" + ltrChars + "]");
let _siteDir;
export function isRTL(text) {
return rtlDirCheck.test(text);
}
export function isLTR(text) {
return ltrDirCheck.test(text);
}
export function setTextDirections($elem) {
$elem.find("*").each((i, e) => {
let $e = $(e),
textContent = $e.text();
if (textContent) {
isRTL(textContent) ? $e.attr("dir", "rtl") : $e.attr("dir", "ltr");
}
});
}
export function siteDir() {
if (!_siteDir) {
_siteDir = $("html").hasClass("rtl") ? "rtl" : "ltr";
}
return _siteDir;
}