38 lines
1.1 KiB
JavaScript
Executable File
38 lines
1.1 KiB
JavaScript
Executable File
module.exports = Negotiator;
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Negotiator.Negotiator = Negotiator;
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function Negotiator(request) {
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if (!(this instanceof Negotiator)) return new Negotiator(request);
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this.request = request;
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}
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var set = { charset: 'accept-charset',
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encoding: 'accept-encoding',
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language: 'accept-language',
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mediaType: 'accept' };
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function capitalize(string){
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return string.charAt(0).toUpperCase() + string.slice(1);
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}
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Object.keys(set).forEach(function (k) {
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var header = set[k],
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method = require('./'+k+'.js'),
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singular = k,
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plural = k + 's';
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Negotiator.prototype[plural] = function (available) {
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return method(this.request.headers[header], available);
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};
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Negotiator.prototype[singular] = function(available) {
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var set = this[plural](available);
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if (set) return set[0];
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};
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// Keep preferred* methods for legacy compatibility
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Negotiator.prototype['preferred'+capitalize(plural)] = Negotiator.prototype[plural];
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Negotiator.prototype['preferred'+capitalize(singular)] = Negotiator.prototype[singular];
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})
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