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Support .psv parsing in CsvViewer

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This commit is contained in:
ema
2026-02-10 02:18:01 +08:00
parent 0661c230a4
commit f542fb1107
2 changed files with 47 additions and 26 deletions
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66
QuickLook.Plugin/QuickLook.Plugin.CsvViewer/CsvViewerPanel.xaml.cs
View File

@@ -48,35 +48,51 @@ public partial class CsvViewerPanel : UserControl
var encoding = CharsetDetector.DetectFromFile(path).Detected?.Encoding ??
Encoding.Default;
using (var sr = new StreamReader(new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), encoding))
using var sr = new StreamReader(new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), encoding);
// Use fixed delimiters for known extensions to avoid mis-detection on small samples.
var extension = Path.GetExtension(path);
var delimiter = extension.Equals(".tsv", StringComparison.OrdinalIgnoreCase)
? "\t"
: extension.Equals(".psv", StringComparison.OrdinalIgnoreCase)
? "|"
: null;
var conf = new CsvConfiguration(CultureInfo.CurrentUICulture)
{
var conf = new CsvConfiguration(CultureInfo.CurrentUICulture) { MissingFieldFound = null, BadDataFound = null, DetectDelimiter = true };
MissingFieldFound = null,
BadDataFound = null,
DetectDelimiter = delimiter == null,
};
using (var parser = new CsvParser(sr, conf))
if (delimiter != null)
{
// Force delimiter for TSV/PSV so CsvHelper doesn't auto-detect incorrectly.
conf.Delimiter = delimiter;
}
using var parser = new CsvParser(sr, conf);
var i = 0;
while (parser.Read())
{
var row = parser.Record;
if (row == null)
break;
row = Concat([$"{i++ + 1}".PadLeft(6)], row);
if (!binded)
{
var i = 0;
while (parser.Read())
{
var row = parser.Record;
if (row == null)
break;
row = Concat([$"{i++ + 1}".PadLeft(6)], row);
if (!binded)
{
SetupColumnBinding(row.Length);
binded = true;
}
if (i > limit)
{
Rows.Add(Enumerable.Repeat("...", row.Length).ToArray());
break;
}
Rows.Add(row);
}
SetupColumnBinding(row.Length);
binded = true;
}
if (i > limit)
{
Rows.Add([.. Enumerable.Repeat("...", row.Length)]);
break;
}
Rows.Add(row);
}
}

7
QuickLook.Plugin/QuickLook.Plugin.CsvViewer/Plugin.cs
View File

@@ -34,7 +34,12 @@ public sealed class Plugin : IViewer
public bool CanHandle(string path)
{
return !Directory.Exists(path) && (path.ToLower().EndsWith(".csv") || path.ToLower().EndsWith(".tsv"));
if (Directory.Exists(path))
return false;
return path.EndsWith(".csv", StringComparison.OrdinalIgnoreCase)
|| path.EndsWith(".tsv", StringComparison.OrdinalIgnoreCase)
|| path.EndsWith(".psv", StringComparison.OrdinalIgnoreCase);
}
public void Prepare(string path, ContextObject context)