79 lines
2.4 KiB
JavaScript
79 lines
2.4 KiB
JavaScript
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(function (name, context, definition) {
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if (typeof module !== 'undefined' && module.exports) module.exports = definition();
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else if (typeof define === 'function' && define.amd) define(definition);
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else context[name] = definition();
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})('urljoin', this, function () {
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function normalize (strArray) {
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var resultArray = [];
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if (strArray.length === 0) { return ''; }
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if (typeof strArray[0] !== 'string') {
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throw new TypeError('Url must be a string. Received ' + strArray[0]);
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}
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// If the first part is a plain protocol, we combine it with the next part.
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if (strArray[0].match(/^[^/:]+:\/*$/) && strArray.length > 1) {
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var first = strArray.shift();
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strArray[0] = first + strArray[0];
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}
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// There must be two or three slashes in the file protocol, two slashes in anything else.
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if (strArray[0].match(/^file:\/\/\//)) {
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strArray[0] = strArray[0].replace(/^([^/:]+):\/*/, '$1:///');
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} else {
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strArray[0] = strArray[0].replace(/^([^/:]+):\/*/, '$1://');
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}
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for (var i = 0; i < strArray.length; i++) {
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var component = strArray[i];
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if (typeof component !== 'string') {
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throw new TypeError('Url must be a string. Received ' + component);
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}
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if (component === '') { continue; }
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if (i > 0) {
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// Removing the starting slashes for each component but the first.
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component = component.replace(/^[\/]+/, '');
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}
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if (i < strArray.length - 1) {
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// Removing the ending slashes for each component but the last.
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component = component.replace(/[\/]+$/, '');
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} else {
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// For the last component we will combine multiple slashes to a single one.
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component = component.replace(/[\/]+$/, '/');
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}
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resultArray.push(component);
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}
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var str = resultArray.join('/');
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// Each input component is now separated by a single slash except the possible first plain protocol part.
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// remove trailing slash before parameters or hash
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str = str.replace(/\/(\?|&|#[^!])/g, '$1');
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// replace ? in parameters with &
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var parts = str.split('?');
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str = parts.shift() + (parts.length > 0 ? '?': '') + parts.join('&');
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return str;
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}
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return function () {
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var input;
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if (typeof arguments[0] === 'object') {
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input = arguments[0];
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} else {
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input = [].slice.call(arguments);
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}
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return normalize(input);
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};
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});
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