git ssb

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// FROM: https://raw.githubusercontent.com/Matt-Esch/virtual-dom/master/virtual-hyperscript/parse-tag.js
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'use strict'
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var split = require('browser-split')
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var classIdSplit = /([\.#]?[a-zA-Z0-9\u007F-\uFFFF_:-]+)/
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var notClassId = /^\.|#/
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module.exports = parseTag
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function parseTag (tag, attributes, namespace) {
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  if (!tag) {
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    return 'DIV'
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  }
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  var noId = !(attributes.hasOwnProperty('id'))
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  var tagParts = split(tag, classIdSplit)
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  var tagName = null
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  if (notClassId.test(tagParts[1])) {
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    tagName = 'DIV'
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  }
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  var classes, part, type, i, id
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  for (i = 0; i < tagParts.length; i++) {
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    part = tagParts[i]
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    if (!part) {
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      continue
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    }
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    type = part.charAt(0)
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    if (!tagName) {
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      tagName = part
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    } else if (type === '.') {
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      classes = classes || []
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      classes.push(part.substring(1, part.length))
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    } else if (type === '#' && noId) {
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      id = part.substring(1, part.length)
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    }
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  }
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  return {
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    tagName: namespace ? tagName : tagName.toUpperCase(),
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    classes: classes,
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    id: id
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  }
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}
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