Created
December 17, 2014 03:38
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Excerpt Helper
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// # Excerpt Helper | |
// Usage: `{{excerpt}}`, `{{excerpt words="50"}}`, `{{excerpt characters="256"}}` | |
// | |
// Attempts to remove all HTML from the string, and then shortens the result according to the provided option. | |
// | |
// Defaults to words="50" | |
var hbs = require('express-hbs'), | |
_ = require('lodash'), | |
downsize = require('downsize'), | |
excerpt; | |
excerpt = function (options) { | |
var truncateOptions = (options || {}).hash || {}, | |
excerpt; | |
truncateOptions = _.pick(truncateOptions, ['words', 'characters']); | |
_.keys(truncateOptions).map(function (key) { | |
truncateOptions[key] = parseInt(truncateOptions[key], 10); | |
}); | |
/*jslint regexp:true */ | |
excerpt = String(this.html).replace(/<\/?[^>]+>/gi, ''); | |
excerpt = excerpt.replace(/(\r\n|\n|\r)+/gm, ' '); | |
/*jslint regexp:false */ | |
if (!truncateOptions.words && !truncateOptions.characters) { | |
truncateOptions.words = 50; | |
} | |
return new hbs.handlebars.SafeString( | |
downsize(excerpt, truncateOptions) | |
); | |
}; | |
module.exports = excerpt; |
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