85 lines
2.7 KiB
VB.net
85 lines
2.7 KiB
VB.net
#Region "Microsoft.VisualBasic::7a456276eee8e217239f3c469b74caf0, Microsoft.VisualBasic.Core\Text\Xml\XmlEntity.vb"
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' Author:
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'
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' asuka (amethyst.asuka@gcmodeller.org)
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' xie (genetics@smrucc.org)
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' xieguigang (xie.guigang@live.com)
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'
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' Copyright (c) 2018 GPL3 Licensed
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'
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'
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' GNU GENERAL PUBLIC LICENSE (GPL3)
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'
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'
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' This program is free software: you can redistribute it and/or modify
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' it under the terms of the GNU General Public License as published by
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' the Free Software Foundation, either version 3 of the License, or
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' (at your option) any later version.
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'
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' This program is distributed in the hope that it will be useful,
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' but WITHOUT ANY WARRANTY; without even the implied warranty of
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' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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' GNU General Public License for more details.
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'
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' You should have received a copy of the GNU General Public License
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' along with this program. If not, see <http://www.gnu.org/licenses/>.
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' /********************************************************************************/
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' Summaries:
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' Module XmlEntity
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'
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' Function: EscapingXmlEntity, UnescapeHTML, UnescapingXmlEntity
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'
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'
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' /********************************************************************************/
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#End Region
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Imports System.IO
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Imports System.Runtime.CompilerServices
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Imports System.Text
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Imports System.Web
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Namespace Text.Xml
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''' <summary>
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''' https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references
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''' </summary>
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Public Module XmlEntity
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Public Function EscapingXmlEntity(str As String) As String
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Return New StringBuilder(str) _
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.Replace("&", "&") _
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.Replace("""", """) _
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.Replace("'", "'") _
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.Replace("<", "<") _
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.Replace(">", ">") _
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.ToString
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End Function
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Public Function UnescapingXmlEntity(str As String) As String
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Return New StringBuilder(str) _
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.Replace(""", """") _
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.Replace("'", "'") _
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.Replace("<", "<") _
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.Replace(">", ">") _
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.Replace("&", "&") _
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.ToString
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End Function
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<Extension>
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Public Function UnescapeHTML(html As String) As String
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Using writer As New StringWriter()
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' Decode the encoded string.
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HttpUtility.HtmlDecode(html, writer)
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Return writer.ToString()
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End Using
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End Function
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End Module
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End Namespace
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