var nargs = /\{([0-9a-zA-Z]+)\}/g
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var slice = Array.prototype.slice
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module.exports = template
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function template(string) {
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var args
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if (arguments.length === 2 && typeof arguments[1] === "object") {
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args = arguments[1]
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} else {
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args = slice.call(arguments, 1)
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}
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if (!args || !args.hasOwnProperty) {
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args = {}
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}
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return string.replace(nargs, function replaceArg(match, i, index) {
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var result
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if (string[index - 1] === "{" &&
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string[index + match.length] === "}") {
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return i
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} else {
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result = args.hasOwnProperty(i) ? args[i] : null
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if (result === null || result === undefined) {
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return ""
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}
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return result
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}
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})
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}
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