30 lines
760 B
JavaScript
30 lines
760 B
JavaScript
import Ember from "ember";
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const isArray = Ember.isArray;
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export default function(str, formats) {
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let cachedFormats = formats;
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if (!isArray(cachedFormats) || arguments.length > 2) {
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cachedFormats = new Array(arguments.length - 1);
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for (let i = 1, l = arguments.length; i < l; i++) {
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cachedFormats[i - 1] = arguments[i];
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}
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}
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// first, replace any ORDERED replacements.
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let idx = 0; // the current index for non-numerical replacements
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return str.replace(/%@([0-9]+)?/g, function(s, argIndex) {
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argIndex = argIndex ? parseInt(argIndex, 10) - 1 : idx++;
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s = cachedFormats[argIndex];
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return typeof s === "string"
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? s
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: s === null
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? "(null)"
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: s === undefined
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? ""
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: "" + s;
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});
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}
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