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/** | |
* Outputs a new function with interpolated object property values. | |
* Use like so: | |
* var fn = makeInterpolator('some/url/{param1}/{param2}'); | |
* fn({ param1: 123, param2: 456 }); // => 'some/url/123/456' | |
*/ | |
var makeInterpolator = (function() { | |
var rc = { | |
'\n': '\\n', '\"': '\\\"', | |
'\u2028': '\\u2028', '\u2029': '\\u2029' | |
}; | |
return function makeInterpolator(str) { | |
return new Function( | |
'o', | |
'return "' + ( | |
str | |
.replace(/["\n\r\u2028\u2029]/g, function($0) { | |
return rc[$0]; | |
}) | |
.replace(/\{([\s\S]+?)\}/g, '" + o["$1"] + "') | |
) + '";' | |
); | |
}; | |
}()); | |
var url = makeInterpolator('http://something.com/{param}/{foo}?x={n}'); | |
url({ | |
param: '123', | |
foo: '456', | |
n: 789 | |
}); |
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