mirror of
https://gitlab.com/berufsschul-ae/blitzchat.git
synced 2024-12-22 20:37:40 +01:00
129 lines
3.3 KiB
JavaScript
129 lines
3.3 KiB
JavaScript
/**
|
|
* Expose `pathtoRegexp`.
|
|
*/
|
|
|
|
module.exports = pathtoRegexp;
|
|
|
|
/**
|
|
* Match matching groups in a regular expression.
|
|
*/
|
|
var MATCHING_GROUP_REGEXP = /\((?!\?)/g;
|
|
|
|
/**
|
|
* Normalize the given path string,
|
|
* returning a regular expression.
|
|
*
|
|
* An empty array should be passed,
|
|
* which will contain the placeholder
|
|
* key names. For example "/user/:id" will
|
|
* then contain ["id"].
|
|
*
|
|
* @param {String|RegExp|Array} path
|
|
* @param {Array} keys
|
|
* @param {Object} options
|
|
* @return {RegExp}
|
|
* @api private
|
|
*/
|
|
|
|
function pathtoRegexp(path, keys, options) {
|
|
options = options || {};
|
|
keys = keys || [];
|
|
var strict = options.strict;
|
|
var end = options.end !== false;
|
|
var flags = options.sensitive ? '' : 'i';
|
|
var extraOffset = 0;
|
|
var keysOffset = keys.length;
|
|
var i = 0;
|
|
var name = 0;
|
|
var m;
|
|
|
|
if (path instanceof RegExp) {
|
|
while (m = MATCHING_GROUP_REGEXP.exec(path.source)) {
|
|
keys.push({
|
|
name: name++,
|
|
optional: false,
|
|
offset: m.index
|
|
});
|
|
}
|
|
|
|
return path;
|
|
}
|
|
|
|
if (Array.isArray(path)) {
|
|
// Map array parts into regexps and return their source. We also pass
|
|
// the same keys and options instance into every generation to get
|
|
// consistent matching groups before we join the sources together.
|
|
path = path.map(function (value) {
|
|
return pathtoRegexp(value, keys, options).source;
|
|
});
|
|
|
|
return new RegExp('(?:' + path.join('|') + ')', flags);
|
|
}
|
|
|
|
path = ('^' + path + (strict ? '' : path[path.length - 1] === '/' ? '?' : '/?'))
|
|
.replace(/\/\(/g, '/(?:')
|
|
.replace(/([\/\.])/g, '\\$1')
|
|
.replace(/(\\\/)?(\\\.)?:(\w+)(\(.*?\))?(\*)?(\?)?/g, function (match, slash, format, key, capture, star, optional, offset) {
|
|
slash = slash || '';
|
|
format = format || '';
|
|
capture = capture || '([^\\/' + format + ']+?)';
|
|
optional = optional || '';
|
|
|
|
keys.push({
|
|
name: key,
|
|
optional: !!optional,
|
|
offset: offset + extraOffset
|
|
});
|
|
|
|
var result = ''
|
|
+ (optional ? '' : slash)
|
|
+ '(?:'
|
|
+ format + (optional ? slash : '') + capture
|
|
+ (star ? '((?:[\\/' + format + '].+?)?)' : '')
|
|
+ ')'
|
|
+ optional;
|
|
|
|
extraOffset += result.length - match.length;
|
|
|
|
return result;
|
|
})
|
|
.replace(/\*/g, function (star, index) {
|
|
var len = keys.length
|
|
|
|
while (len-- > keysOffset && keys[len].offset > index) {
|
|
keys[len].offset += 3; // Replacement length minus asterisk length.
|
|
}
|
|
|
|
return '(.*)';
|
|
});
|
|
|
|
// This is a workaround for handling unnamed matching groups.
|
|
while (m = MATCHING_GROUP_REGEXP.exec(path)) {
|
|
var escapeCount = 0;
|
|
var index = m.index;
|
|
|
|
while (path.charAt(--index) === '\\') {
|
|
escapeCount++;
|
|
}
|
|
|
|
// It's possible to escape the bracket.
|
|
if (escapeCount % 2 === 1) {
|
|
continue;
|
|
}
|
|
|
|
if (keysOffset + i === keys.length || keys[keysOffset + i].offset > m.index) {
|
|
keys.splice(keysOffset + i, 0, {
|
|
name: name++, // Unnamed matching groups must be consistently linear.
|
|
optional: false,
|
|
offset: m.index
|
|
});
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
// If the path is non-ending, match until the end or a slash.
|
|
path += (end ? '$' : (path[path.length - 1] === '/' ? '' : '(?=\\/|$)'));
|
|
|
|
return new RegExp(path, flags);
|
|
};
|