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105 lines
2.5 KiB
C#
105 lines
2.5 KiB
C#
//
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// Commons.Xml.Relaxng.General.cs
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//
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// Author:
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// Atsushi Enomoto <ginga@kit.hi-ho.ne.jp>
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//
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// 2003 Atsushi Enomoto "No rights reserved."
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//
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// Copyright (c) 2004 Novell Inc.
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// All rights reserved
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.IO;
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using System.Text;
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using System.Xml;
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using Commons.Xml.Relaxng.Derivative;
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namespace Commons.Xml.Relaxng
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{
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internal class Util
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{
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public static string NormalizeWhitespace (string s)
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{
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if (s.Length == 0)
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return s;
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StringBuilder sb = null;
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int noSpaceIndex = 0;
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bool inSpace = false;
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for (int i = 0; i < s.Length; i++) {
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switch (s [i]) {
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case ' ':
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case '\r':
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case '\t':
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case '\n':
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if (inSpace)
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continue;
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if (sb == null)
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sb = new StringBuilder (s.Length);
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if (noSpaceIndex < i) {
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if (sb.Length > 0)
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sb.Append (' ');
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sb.Append (s, noSpaceIndex, i - noSpaceIndex);
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}
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inSpace = true;
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break;
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default:
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if (inSpace) {
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noSpaceIndex = i;
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inSpace = false;
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}
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break;
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}
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}
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if (sb == null)
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return s;
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if (!inSpace && noSpaceIndex < s.Length) {
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sb.Append (' ');
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sb.Append (s, noSpaceIndex, s.Length - noSpaceIndex);
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}
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return sb.ToString ();
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}
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public static bool IsWhitespace (string s)
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{
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for (int i = 0; i < s.Length; i++) {
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switch (s [i]) {
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case ' ':
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case '\t':
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case '\n':
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case '\r':
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continue;
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default:
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return false;
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}
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}
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return true;
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}
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}
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}
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