92 lines
2.5 KiB
C#
92 lines
2.5 KiB
C#
/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy 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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dnSpy 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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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Diagnostics;
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namespace dnSpy.Decompiler.ILSpy.Core.XmlDoc {
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struct SubStringInfo {
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public readonly int Index;
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public readonly int Length;
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public SubStringInfo(int index, int length) {
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Index = index;
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Length = length;
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}
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}
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struct StringLineIterator : IEnumerable<SubStringInfo>, IEnumerator<SubStringInfo> {
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readonly string s;
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int index;
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readonly int end;
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SubStringInfo info;
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bool finished;
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public StringLineIterator(string s, int index, int length) {
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this.s = s;
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this.index = index;
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end = index + length;
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info = default;
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finished = false;
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}
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public StringLineIterator GetEnumerator() => this;
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IEnumerator<SubStringInfo> IEnumerable<SubStringInfo>.GetEnumerator() {
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Debug.Fail("'this' was boxed");
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return GetEnumerator();
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}
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IEnumerator IEnumerable.GetEnumerator() {
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Debug.Fail("'this' was boxed");
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return GetEnumerator();
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}
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public SubStringInfo Current => info;
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object IEnumerator.Current {
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get { Debug.Fail("'this' was boxed"); return info; }
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}
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public void Dispose() { }
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public bool MoveNext() {
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int newLineIndex = s.IndexOfAny(newLineChars, index, end - index);
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if (newLineIndex < 0) {
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if (finished)
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return false;
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info = new SubStringInfo(index, end - index);
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finished = true;
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return true;
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}
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int len = newLineIndex - index;
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info = new SubStringInfo(index, len);
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if (s[newLineIndex] == '\r' && newLineIndex + 1 < s.Length && s[newLineIndex + 1] == '\n')
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newLineIndex++;
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index = newLineIndex + 1;
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return true;
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}
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static readonly char[] newLineChars = new char[] { '\r', '\n', '\u0085', '\u2028', '\u2029' };
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public void Reset() => throw new NotImplementedException();
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}
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}
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