【Bug】Some special symbols cannot be processed

[sdwdjzhy]

Information

• OS: Win
• Version: 0.49.1
• Terminal: cmd

Describe the bug

Some special characters cannot be counted as 2, like ℃、℉

To Reproduce

using Spectre.Console;

var table = new Spectre.Console.Table();
table.AddColumns("Name", "Value", "Description");
table.AddRow("test", "中文", "中文 mix English");
table.AddRow("test", "中文", "使用特殊字符℃");
table.AddRow("test", "中文", "使用特殊字符℉");
table.AddRow("test", "中文", "使用特殊字符");

AnsiConsole.Write(table);

Expected behavior Table alignment

Screenshots

Additional context Add any other context about the problem here.

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Please upvote :+1: this issue if you are interested in it.

[sdwdjzhy]

This is not an urgent issue, I'll wait for Nuget to release it

I am wondering if I need to provide an event to correct the width, pass in the current character, return whether it has been processed, and customize the width

class Arg
{
    public bool Handle { get; set; }
    public int? Width { get; set; }
}

// the event like

void Fun(char c, Arg e)
{
    if(e.Handle) return;
    if (c == '℃')
    {
        e.handle = true;
        e.Width = 2;
    }

    // Other, handle by default
    // e.Handle = false;
    // e.Width = null;
}

[patriksvensson]

Moving this issue over to the wcwidth repository, since it's a bug there.

[sdwdjzhy]

i see the pull request will be automatically merged. Do you need to review it?

[patriksvensson]

@sdwdjzhy You haven't created a pull request for this issue, so not sure what will be merged.

[patriksvensson]

It looks like this has something to do with your terminal font, because ℃ and ℉ are not considered to be wide characters.

Maybe ℃ and ℉ aren't available in your terminal font, and the terminal falls back to another font with a different width?

I've tested this using 6 terminals on 3 different OSes and cannot reproduce what you're seeing.