Bug 54557 - invalid cursor left
Summary: invalid cursor left
Status: CONFIRMED
Alias: None
Product: Class Libraries
Classification: Mono
Component: System (show other bugs)
Version: unspecified
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2017-04-06 07:38 UTC by s2quake
Modified: 2017-06-26 14:27 UTC (History)
2 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.


Please create a new report for Bug 54557 on GitHub or Developer Community if you have new information to add and do not yet see a matching new report.

If the latest results still closely match this report, you can use the original description:

  • Export the original title and description: GitHub Markdown or Developer Community HTML
  • Copy the title and description into the new report. Adjust them to be up-to-date if needed.
  • Add your new information.

In special cases on GitHub you might also want the comments: GitHub Markdown with public comments

Related Links:
Status:
CONFIRMED

Description s2quake 2017-04-06 07:38:58 UTC
i want implement terminal as getline.cs  (https://github.com/mono/mono/blob/0bcbe39b148bb498742fc68416f8293ccd350fb6/mcs/tools/csharp/getline.cs) in runtime

problem is that Console.CursorLeft does not work on write korean character or etc

examples.

Console.Out.Write("최");
Console.CursorLeft == 2;

it does work

but 

var c = Console.TreatControlCAsInput;
Console.Out.Write("최");

Console.CursorLeft is not 2


using (var stream = Console.OpenStandardOutput())
using (var writer = new StreamWriter(stream))
{
    writer.Write("최");
}
Console.CursorLeft is 2

but

var c = Console.TreatControlCAsInput;
using (var stream = Console.OpenStandardOutput())
using (var writer = new StreamWriter(stream))
{
    writer.Write("최");
}

Console.CursorLeft is not 2
Comment 1 John Miller [MSFT] 2017-06-26 14:27:55 UTC
I was able to reproduce a difference using the code above when running on Mono 5.0 (Mac) vs on Windows with .NET. 

On Windows, using .NET, CursorLeft is not 2 for either value of Console.TreatControlCAsInput. With Mono, CursorLeft is true when Console.TreatControlCAsInput is false. Otherwise, it's 1.