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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. |
| 4 |
| 5 library custom_element.src.custom_tag_name; |
| 6 |
| 7 /** |
| 8 * Returns true if this is a valid custom element name. See: |
| 9 * <https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/custom/index.html#dfn
-custom-element-name> |
| 10 */ |
| 11 bool isCustomTag(String name) { |
| 12 if (!name.contains('-')) return false; |
| 13 |
| 14 // These names have meaning in SVG or MathML, so they aren't allowed as custom |
| 15 // tags. |
| 16 var invalidNames = const { |
| 17 'annotation-xml': '', |
| 18 'color-profile': '', |
| 19 'font-face': '', |
| 20 'font-face-src': '', |
| 21 'font-face-uri': '', |
| 22 'font-face-format': '', |
| 23 'font-face-name': '', |
| 24 'missing-glyph': '', |
| 25 }; |
| 26 return !invalidNames.containsKey(name); |
| 27 } |
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