CocoaLogViewer からコードを拝借

Covid19Radar/Tests/Covid19Radar.UnitTests/Services/Logs/LoggerServiceTests.cs

@@ -3,8 +3,10 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 using System;
+using System.Collections.Generic;
 using System.IO;
-using System.Text.RegularExpressions;
+using System.Linq;
+using System.Text;
 using System.Threading.Tasks;
 using Covid19Radar.Services;
 using Covid19Radar.Services.Logs;
@@ -753,10 +755,82 @@ private void RecreateLogsFile()
 
  private string[] ParseLogRow(string logRow)
  {
- var pattern = new Regex(",(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)");
- return pattern.Split(logRow);
+ return ParseCsv(logRow, false)
+ .Select(s => $"\"{s}\"")
+ .ToArray();
  }
 
  #endregion
+
+ #region CocoaLogViewer Code
+
+ // このコードは CocoaLogViewer からコピーしました。MITライセンスに基づいて配布されています。
+ // This source code is copied from CocoaLogViewer and distributed under the MIT License.
+ // https://github.com/YigtyORG/CocoaLogViewer/blob/00862602b739d3c4f6c9c129e9fe0a6ad32cbeed/src/Covid19Radar.LogViewer/Models/LogFileModel.cs#L64-L123
+ // Copyright (C) 2020-2021 Yigty.ORG; all rights reserved.
+ // Copyright (C) 2020-2021 Takym.
+
+ private static List<string> ParseCsv(string line, bool allowEscape)
+ {
+ var result = new List<string>();
+ var sb = new StringBuilder(); // This line was modified.
+ int i = 0;
+ bool dq = false;
+ while (i < line.Length) {
+ char ch = line[i];
+ switch (ch) {
+ case '\"':
+ ++i;
+ if (i < line.Length && line[i] == '\"') {
+ ++i;
+ sb.Append('\"');
+ } else {
+ dq = !dq;
+ }
+ break;
+ case '\\' when allowEscape:
+ ++i;
+ if (i < line.Length) {
+ ch = line[i];
+ ++i;
+ sb.Append(ch switch {
+ 't' => '\t',
+ 'v' => '\v',
+ 'r' => '\r',
+ 'n' => '\n',
+ _ => ch
+ });
+ } else {
+ sb.Append('\\');
+ }
+ break;
+ case ',':
+ ++i;
+ if (dq) {
+ sb.Append(',');
+ } else {
+ result.Add(sb.ToString());
+ sb.Clear();
+ }
+ break;
+ case ' ': case '\0': case '\t': case '\v': case '\r': case '\n':
+ ++i;
+ if (dq) {
+ sb.Append(ch);
+ }
+ break;
+ default:
+ ++i;
+ sb.Append(ch);
+ break;
+ }
+ }
+ if (sb.Length > 0) {
+ result.Add(sb.ToString());
+ }
+ return result;
+ }
+
+ #endregion
  }
 }