planning

node_modules/property-information/find.js

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+'use strict'
+
+var normalize = require('./normalize')
+var DefinedInfo = require('./lib/util/defined-info')
+var Info = require('./lib/util/info')
+
+var data = 'data'
+
+module.exports = find
+
+var valid = /^data[-\w.:]+$/i
+var dash = /-[a-z]/g
+var cap = /[A-Z]/g
+
+function find(schema, value) {
+  var normal = normalize(value)
+  var prop = value
+  var Type = Info
+
+  if (normal in schema.normal) {
+    return schema.property[schema.normal[normal]]
+  }
+
+  if (normal.length > 4 && normal.slice(0, 4) === data && valid.test(value)) {
+    // Attribute or property.
+    if (value.charAt(4) === '-') {
+      prop = datasetToProperty(value)
+    } else {
+      value = datasetToAttribute(value)
+    }
+
+    Type = DefinedInfo
+  }
+
+  return new Type(prop, value)
+}
+
+function datasetToProperty(attribute) {
+  var value = attribute.slice(5).replace(dash, camelcase)
+  return data + value.charAt(0).toUpperCase() + value.slice(1)
+}
+
+function datasetToAttribute(property) {
+  var value = property.slice(4)
+
+  if (dash.test(value)) {
+    return property
+  }
+
+  value = value.replace(cap, kebab)
+
+  if (value.charAt(0) !== '-') {
+    value = '-' + value
+  }
+
+  return data + value
+}
+
+function kebab($0) {
+  return '-' + $0.toLowerCase()
+}
+
+function camelcase($0) {
+  return $0.charAt(1).toUpperCase()
+}