129 lines
3.8 KiB
C#
129 lines
3.8 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.Generic;
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using System.Diagnostics;
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using System.Text;
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using dnSpy.Contracts.DnSpy.Properties;
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using Microsoft.VisualStudio.Text;
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namespace dnSpy.Contracts.ToolWindows.Search {
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sealed class SearchMatcher {
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const StringComparison stringComparison = StringComparison.CurrentCultureIgnoreCase;
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readonly List<Span> spans;
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readonly SearchColumnDefinition[] definitions;
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readonly SearchColumnCommandParser parser;
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SearchCommand[] searchCommands;
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public SearchMatcher(SearchColumnDefinition[] definitions) {
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this.definitions = definitions ?? throw new ArgumentNullException(nameof(definitions));
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spans = new List<Span>();
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parser = new SearchColumnCommandParser(definitions);
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searchCommands = Array.Empty<SearchCommand>();
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}
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public string GetHelpText() {
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var sb = new StringBuilder();
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foreach (var def in definitions) {
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sb.Append("-" + def.ShortOptionName);
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sb.Append(" <text> ");
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sb.Append(string.Format(dnSpy_Contracts_DnSpy_Resources.Search_SearchColumnHelpText, def.LocalizedName));
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sb.AppendLine();
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}
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Debug.Assert(definitions.Length > 0);
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if (definitions.Length > 0) {
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sb.AppendLine();
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var def = definitions[0];
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sb.AppendLine(string.Format(dnSpy_Contracts_DnSpy_Resources.Search_SearchColumnInvertMatchHelpText, "-option!", "-" + def.ShortOptionName + "! <text>"));
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}
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return sb.ToString();
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}
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public void SetSearchText(string searchText) => searchCommands = parser.GetSearchCommands(searchText);
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public bool IsMatchAll(string[] columnText) {
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if (columnText.Length != definitions.Length)
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throw new InvalidOperationException();
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foreach (var cmd in searchCommands) {
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if (cmd.ColumnId is null) {
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bool match = false;
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foreach (var text in columnText) {
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bool b = text.IndexOf(cmd.SearchText, stringComparison) >= 0;
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if (cmd.Negate)
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b = !b;
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if (b) {
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match = true;
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break;
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}
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}
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if (!match)
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return false;
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}
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else {
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int index = GetColumnIndex(cmd.ColumnId);
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Debug.Assert(index >= 0);
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if (index < 0)
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return false;
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bool b = columnText[index].IndexOf(cmd.SearchText, stringComparison) >= 0;
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if (cmd.Negate)
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b = !b;
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if (!b)
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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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int GetColumnIndex(string id) {
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for (int i = 0; i < definitions.Length; i++) {
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if (definitions[i].Id == id)
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return i;
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}
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return -1;
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}
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public List<Span> GetMatchSpans(string columnId, string text) {
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spans.Clear();
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if (searchCommands.Length == 0 || string.IsNullOrEmpty(text))
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return spans;
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foreach (var cmd in searchCommands) {
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if (cmd.ColumnId is not null && cmd.ColumnId != columnId)
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continue;
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if (cmd.Negate)
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continue;
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int searchLength = cmd.SearchText.Length;
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if (searchLength == 0)
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continue;
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for (int index = 0; index < text.Length;) {
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index = text.IndexOf(cmd.SearchText, index, stringComparison);
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if (index < 0)
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break;
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spans.Add(new Span(index, searchLength));
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// "aa" should match "aaa" at index 0 and 1
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index++;
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}
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}
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return spans;
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}
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}
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}
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