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var SYMBOLS = [

'[', ']', '!', '"', '\'', '#',

'$', '%', '&', '(', ')', '*', '+', ',', '.', '/', ':', ';', '<', '=',

'>', '?', '@', '', '', '^', '_', '`', '{', '|', '}', '~',

'©', '∑', '®', '†', '“', '”', '‘', '’', '∂', 'ƒ', '™', '℠', '…',

'œ', 'Œ','˚', 'º', 'ª', '•', '∆', '∞', '♥', '&', '|'

];

function slug(content, separator) {

separator = separator || '-';

var re = new RegExp('[\\'+SYMBOLS.join('\\')+']+', 'g');

var s = content

.replace(re, '')

.replace(/ /g, separator)

.toLowerCase();

if (s[0] == separator) s = s.slice(1);

return s;

}

module.exports = slug;