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// localizes `string`, removing instances of `%%string%%` with
// `lang("string")` and so forth
function localize_string(string) {
let parts = string.split("%%");
// basic checks to make sure `string` has lang strings
if (parts.length == 0
|| string.trim() == "" || ! string.match("%%")) {
return string;
}
for (let i = 0; i < parts.length; i++) {
// simply checks to make sure it is actually a lang string.
if (parts[i][0] != " " &&
parts[i][parts[i].length - 1] != " ") {
// get string
let lang_str = lang(parts[i]);
// make sure we got a string back, and if not, do nothing
if (typeof lang_str !== "string") {
continue;
}
// replace this part with the lang string
parts[i] = lang_str;
}
}
// return finalized formatted string
return parts.join("");
}
// runs `localize_string()` on `el`'s attributes, text nodes and children
function localize_el(el) {
// we don't want to mess with script tags
if (el.tagName == "SCRIPT") {return}
let attributes = el.getAttributeNames();
// run through child nodes
for (let i = 0; i < el.childNodes.length; i++) {
// if the node isn't a text node, we do nothing
if (el.childNodes[i].nodeType != Node.TEXT_NODE) {
continue;
}
// the node is a text node, so we set its `.textContent` by
// running `format_string()` on it
el.childNodes[i].textContent =
localize_string(el.childNodes[i].textContent)
}
// run through attributes and run `format_string()` on their values
for (let i = 0; i < attributes.length; i++) {
let attr = el.getAttribute(attributes[i]);
el.setAttribute(attributes[i], localize_string(attr))
}
// run `replace_in_el()` on `el`'s children
for (let i = 0; i < el.children.length; i++) {
localize_el(el.children[i]);
}
}
// localizes lang strings on (almost) all the elements inside `<body>`
module.exports = () => {
localize_el(document.body);
}
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