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Merge pull request #894 from PowerShell/shifttab

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Add Shift-Tab for reverse traversal
This commit is contained in:
Andy Schwartzmeyer
2016-04-22 10:10:54 -07:00
parent ed331bde7f c623e3be0e
commit ed47027fef
1 changed files with 26 additions and 13 deletions
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src/Microsoft.PowerShell.CoreConsoleHost/readline.cs
+26 -13
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@@ -339,7 +339,7 @@ namespace Microsoft.PowerShell.CoreConsoleHost
this.OnEnd();
break;
case ConsoleKey.Tab:
this.OnTab();
this.OnTab(!key.Modifiers.HasFlag(ConsoleModifiers.Shift));
break;
case ConsoleKey.UpArrow:
this.OnUpArrow(nested);
@@ -412,7 +412,7 @@ namespace Microsoft.PowerShell.CoreConsoleHost
/// <summary>
/// The Tab key was entered
/// </summary>
private void OnTab()
private void OnTab(bool forward)
{
//if the prompt is empty simply return
if (String.IsNullOrWhiteSpace(this.buffer.ToString()) || this.buffer.Length == 0){
@@ -420,20 +420,35 @@ namespace Microsoft.PowerShell.CoreConsoleHost
}
//if the buffer has been modified in any way, get the new command completion
if (previousKeyPress.Key != ConsoleKey.Tab)
if (previousKeyPress.Key == ConsoleKey.Tab)
{
if (cmdCompleteOpt.CompletionMatches.Count == 0)
{
return;
}
if (forward)
{
tabCompletionPos = (tabCompletionPos < cmdCompleteOpt.CompletionMatches.Count - 1)
? tabCompletionPos + 1 : 0;
}
else
{
tabCompletionPos = (tabCompletionPos > 0)
? tabCompletionPos - 1 : cmdCompleteOpt.CompletionMatches.Count -1;
}
}
else
{
this.preTabBuffer = this.buffer.ToString();
cmdCompleteOpt = CommandCompletion.CompleteInput(this.preTabBuffer, this.current, options, powershell);
}
if (cmdCompleteOpt.CompletionMatches.Count == 0)
{
return;
}
if (cmdCompleteOpt.CompletionMatches.Count == 0)
{
return;
}
if (tabCompletionPos >= cmdCompleteOpt.CompletionMatches.Count)
{
tabCompletionPos = 0;
tabCompletionPos = forward ? 0 : cmdCompleteOpt.CompletionMatches.Count -1;
}
string tabResult = cmdCompleteOpt.CompletionMatches[tabCompletionPos].CompletionText;
@@ -445,8 +460,6 @@ namespace Microsoft.PowerShell.CoreConsoleHost
tabResult = GetReplacementTextForDirectory(tabResult, ref moveLeftOneSpace);
}
tabCompletionPos++;
//if there is a command for the user before the uncompleted option
if (!String.IsNullOrEmpty(tabResult))
{