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South Asian Languages characters are incorrect in size & spacing #13025

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opened 2026-01-31 03:31:41 +00:00 by claunia · 7 comments
claunia commented 2026-01-31 03:31:41 +00:00
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Originally created by @ghost on GitHub (Mar 14, 2021).

Environment

Windows build number: [Version 10.0.19042.804]
Windows Terminal version : Preview 1.7.572.0

Steps to reproduce

Type or Print any south asian languages characters to the terminal.

Expected behavior

All Characters should be in correct size and correctly spaced.

Actual behavior

in this example, first lang is Bengali , second is Hindi and third is Tamil.

this is how characters should be rendered with correct size and spacing.
Screenshot 2021-03-14 132718

instead terminal prints like this below, some characters are normal , some are too small in size. also their spacing is incorrect too.

Screenshot 2021-03-14 132519

settings.json : 
{
    "$schema": "https://aka.ms/terminal-profiles-schema",
    // Add custom actions and keybindings to this array.
    // To unbind a key combination from your defaults.json, set the command to "unbound".
    // To learn more about actions and keybindings, visit https://aka.ms/terminal-keybindings
    "actions": 
    [
        // Copy and paste are bound to Ctrl+Shift+C and Ctrl+Shift+V in your defaults.json.
        // These two lines additionally bind them to Ctrl+C and Ctrl+V.
        // To learn more about selection, visit https://aka.ms/terminal-selection
        {
            "command": 
            {
                "action": "copy",
                "singleLine": false
            },
            "keys": "ctrl+c"
        },
        {
            "command": "paste",
            "keys": "ctrl+v"
        },
        // Press Ctrl+Shift+F to open the search box
        {
            "command": "find",
            "keys": "ctrl+shift+f"
        },
        // Press Alt+Shift+D to open a new pane.
        // - "split": "auto" makes this pane open in the direction that provides the most surface area.
        // - "splitMode": "duplicate" makes the new pane use the focused pane's profile.
        // To learn more about panes, visit https://aka.ms/terminal-panes
        {
            "command": 
            {
                "action": "splitPane",
                "split": "auto",
                "splitMode": "duplicate"
            },
            "keys": "alt+shift+d"
        }
    ],
    "alwaysOnTop": false,
    "copyFormatting": "none",
    "copyOnSelect": false,
    "defaultProfile": "{574e775e-4f2a-5b96-ac1e-a2962a402336}",
    "experimental.rendering.forceFullRepaint": false,
    "experimental.rendering.software": false,
    "profiles": 
    {
        "defaults": 
        {
            "altGrAliasing": true,
            "antialiasingMode": "grayscale",
            "colorScheme": "Vintage",
            "experimental.retroTerminalEffect": false,
            "fontSize": 12,
            "fontWeight": "normal",
            "useAcrylic": false
        },
        "list": 
        [
            {
                "commandline": "powershell.exe",
                "guid": "{61c54bbd-c2c6-5271-96e7-009a87ff44bf}",
                "hidden": false,
                "name": "Windows PowerShell"
            },
            {
                "commandline": "cmd.exe",
                "guid": "{0caa0dad-35be-5f56-a8ff-afceeeaa6101}",
                "hidden": false,
                "name": "Command Prompt"
            },
            {
                "guid": "{b453ae62-4e3d-5e58-b989-0a998ec441b8}",
                "hidden": false,
                "name": "Azure Cloud Shell",
                "source": "Windows.Terminal.Azure"
            },
            {
                "guid": "{574e775e-4f2a-5b96-ac1e-a2962a402336}",
                "hidden": false,
                "name": "PowerShell",
                "source": "Windows.Terminal.PowershellCore"
            }
        ]
    },
    "schemes": 
    [
        {
            "background": "#0C0C0C",
            "black": "#0C0C0C",
            "blue": "#0037DA",
            "brightBlack": "#767676",
            "brightBlue": "#3B78FF",
            "brightCyan": "#61D6D6",
            "brightGreen": "#16C60C",
            "brightPurple": "#B4009E",
            "brightRed": "#E74856",
            "brightWhite": "#F2F2F2",
            "brightYellow": "#F9F1A5",
            "cursorColor": "#FFFFFF",
            "cyan": "#3A96DD",
            "foreground": "#CCCCCC",
            "green": "#13A10E",
            "name": "Campbell",
            "purple": "#881798",
            "red": "#C50F1F",
            "selectionBackground": "#FFFFFF",
            "white": "#CCCCCC",
            "yellow": "#C19C00"
        },
        {
            "background": "#012456",
            "black": "#0C0C0C",
            "blue": "#0037DA",
            "brightBlack": "#767676",
            "brightBlue": "#3B78FF",
            "brightCyan": "#61D6D6",
            "brightGreen": "#16C60C",
            "brightPurple": "#B4009E",
            "brightRed": "#E74856",
            "brightWhite": "#F2F2F2",
            "brightYellow": "#F9F1A5",
            "cursorColor": "#FFFFFF",
            "cyan": "#3A96DD",
            "foreground": "#CCCCCC",
            "green": "#13A10E",
            "name": "Campbell Powershell",
            "purple": "#881798",
            "red": "#C50F1F",
            "selectionBackground": "#FFFFFF",
            "white": "#CCCCCC",
            "yellow": "#C19C00"
        },
        {
            "background": "#000000",
            "black": "#0C0C0C",
            "blue": "#0037DA",
            "brightBlack": "#767676",
            "brightBlue": "#3B78FF",
            "brightCyan": "#61D6D6",
            "brightGreen": "#16C60C",
            "brightPurple": "#B4009E",
            "brightRed": "#E74856",
            "brightWhite": "#F2F2F2",
            "brightYellow": "#F9F1A5",
            "cursorColor": "#FFFFFF",
            "cyan": "#3A96DD",
            "foreground": "#FFFFFF",
            "green": "#13A10E",
            "name": "Color Scheme 10",
            "purple": "#881798",
            "red": "#C50F1F",
            "selectionBackground": "#FFFFFF",
            "white": "#CCCCCC",
            "yellow": "#C19C00"
        },
        {
            "background": "#000000",
            "black": "#0C0C0C",
            "blue": "#0037DA",
            "brightBlack": "#767676",
            "brightBlue": "#3B78FF",
            "brightCyan": "#61D6D6",
            "brightGreen": "#16C60C",
            "brightPurple": "#B4009E",
            "brightRed": "#E74856",
            "brightWhite": "#F2F2F2",
            "brightYellow": "#F9F1A5",
            "cursorColor": "#FFFFFF",
            "cyan": "#3A96DD",
            "foreground": "#FFFFFF",
            "green": "#13A10E",
            "name": "Color Scheme 11",
            "purple": "#881798",
            "red": "#C50F1F",
            "selectionBackground": "#FFFFFF",
            "white": "#CCCCCC",
            "yellow": "#C19C00"
        },
        {
            "background": "#000000",
            "black": "#0C0C0C",
            "blue": "#0037DA",
            "brightBlack": "#767676",
            "brightBlue": "#3B78FF",
            "brightCyan": "#61D6D6",
            "brightGreen": "#16C60C",
            "brightPurple": "#B4009E",
            "brightRed": "#E74856",
            "brightWhite": "#F2F2F2",
            "brightYellow": "#F9F1A5",
            "cursorColor": "#FFFFFF",
            "cyan": "#3A96DD",
            "foreground": "#FFFFFF",
            "green": "#13A10E",
            "name": "Color Scheme 12",
            "purple": "#881798",
            "red": "#C50F1F",
            "selectionBackground": "#FFFFFF",
            "white": "#CCCCCC",
            "yellow": "#C19C00"
        },
        {
            "background": "#282C34",
            "black": "#282C34",
            "blue": "#61AFEF",
            "brightBlack": "#5A6374",
            "brightBlue": "#61AFEF",
            "brightCyan": "#56B6C2",
            "brightGreen": "#98C379",
            "brightPurple": "#C678DD",
            "brightRed": "#E06C75",
            "brightWhite": "#DCDFE4",
            "brightYellow": "#E5C07B",
            "cursorColor": "#FFFFFF",
            "cyan": "#56B6C2",
            "foreground": "#DCDFE4",
            "green": "#98C379",
            "name": "One Half Dark",
            "purple": "#C678DD",
            "red": "#E06C75",
            "selectionBackground": "#FFFFFF",
            "white": "#DCDFE4",
            "yellow": "#E5C07B"
        },
        {
            "background": "#FAFAFA",
            "black": "#383A42",
            "blue": "#0184BC",
            "brightBlack": "#4F525D",
            "brightBlue": "#61AFEF",
            "brightCyan": "#56B5C1",
            "brightGreen": "#98C379",
            "brightPurple": "#C577DD",
            "brightRed": "#DF6C75",
            "brightWhite": "#FFFFFF",
            "brightYellow": "#E4C07A",
            "cursorColor": "#4F525D",
            "cyan": "#0997B3",
            "foreground": "#383A42",
            "green": "#50A14F",
            "name": "One Half Light",
            "purple": "#A626A4",
            "red": "#E45649",
            "selectionBackground": "#FFFFFF",
            "white": "#FAFAFA",
            "yellow": "#C18301"
        },
        {
            "background": "#002B36",
            "black": "#002B36",
            "blue": "#268BD2",
            "brightBlack": "#073642",
            "brightBlue": "#839496",
            "brightCyan": "#93A1A1",
            "brightGreen": "#586E75",
            "brightPurple": "#6C71C4",
            "brightRed": "#CB4B16",
            "brightWhite": "#FDF6E3",
            "brightYellow": "#657B83",
            "cursorColor": "#FFFFFF",
            "cyan": "#2AA198",
            "foreground": "#839496",
            "green": "#859900",
            "name": "Solarized Dark",
            "purple": "#D33682",
            "red": "#DC322F",
            "selectionBackground": "#FFFFFF",
            "white": "#EEE8D5",
            "yellow": "#B58900"
        },
        {
            "background": "#FDF6E3",
            "black": "#002B36",
            "blue": "#268BD2",
            "brightBlack": "#073642",
            "brightBlue": "#839496",
            "brightCyan": "#93A1A1",
            "brightGreen": "#586E75",
            "brightPurple": "#6C71C4",
            "brightRed": "#CB4B16",
            "brightWhite": "#FDF6E3",
            "brightYellow": "#657B83",
            "cursorColor": "#002B36",
            "cyan": "#2AA198",
            "foreground": "#657B83",
            "green": "#859900",
            "name": "Solarized Light",
            "purple": "#D33682",
            "red": "#DC322F",
            "selectionBackground": "#FFFFFF",
            "white": "#EEE8D5",
            "yellow": "#B58900"
        },
        {
            "background": "#000000",
            "black": "#000000",
            "blue": "#3465A4",
            "brightBlack": "#555753",
            "brightBlue": "#729FCF",
            "brightCyan": "#34E2E2",
            "brightGreen": "#8AE234",
            "brightPurple": "#AD7FA8",
            "brightRed": "#EF2929",
            "brightWhite": "#EEEEEC",
            "brightYellow": "#FCE94F",
            "cursorColor": "#FFFFFF",
            "cyan": "#06989A",
            "foreground": "#D3D7CF",
            "green": "#4E9A06",
            "name": "Tango Dark",
            "purple": "#75507B",
            "red": "#CC0000",
            "selectionBackground": "#FFFFFF",
            "white": "#D3D7CF",
            "yellow": "#C4A000"
        },
        {
            "background": "#FFFFFF",
            "black": "#000000",
            "blue": "#3465A4",
            "brightBlack": "#555753",
            "brightBlue": "#729FCF",
            "brightCyan": "#34E2E2",
            "brightGreen": "#8AE234",
            "brightPurple": "#AD7FA8",
            "brightRed": "#EF2929",
            "brightWhite": "#EEEEEC",
            "brightYellow": "#FCE94F",
            "cursorColor": "#000000",
            "cyan": "#06989A",
            "foreground": "#555753",
            "green": "#4E9A06",
            "name": "Tango Light",
            "purple": "#75507B",
            "red": "#CC0000",
            "selectionBackground": "#FFFFFF",
            "white": "#D3D7CF",
            "yellow": "#C4A000"
        },
        {
            "background": "#000000",
            "black": "#000000",
            "blue": "#000080",
            "brightBlack": "#808080",
            "brightBlue": "#0000FF",
            "brightCyan": "#00FFFF",
            "brightGreen": "#00FF00",
            "brightPurple": "#FF00FF",
            "brightRed": "#FF0000",
            "brightWhite": "#FFFFFF",
            "brightYellow": "#FFFF00",
            "cursorColor": "#FFFFFF",
            "cyan": "#008080",
            "foreground": "#C0C0C0",
            "green": "#008000",
            "name": "Vintage",
            "purple": "#800080",
            "red": "#800000",
            "selectionBackground": "#FFFFFF",
            "white": "#C0C0C0",
            "yellow": "#808000"
        }
    ],
    "tabWidthMode": "compact",
    "theme": "dark"
}
Originally created by @ghost on GitHub (Mar 14, 2021). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> <!-- This bug tracker is monitored by Windows Terminal development team and other technical folks. **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue. If this is an application crash, please also provide a Feedback Hub submission link so we can find your diagnostic data on the backend. Use the category "Apps > Windows Terminal (Preview)" and choose "Share My Feedback" after submission to get the link. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> # Environment ``` Windows build number: [Version 10.0.19042.804] Windows Terminal version : Preview 1.7.572.0 ``` # Steps to reproduce Type or Print any south asian languages characters to the terminal. # Expected behavior All Characters should be in correct size and correctly spaced. # Actual behavior **_in this example, first lang is Bengali , second is Hindi and third is Tamil._** this is how characters should be rendered with correct size and spacing. ![Screenshot 2021-03-14 132718](https://user-images.githubusercontent.com/74822870/111060989-19bd5c80-84cb-11eb-9147-dca0d0752dc3.png) **instead terminal prints like this below, some characters are normal , some are too small in size. also their spacing is incorrect too.** ![Screenshot 2021-03-14 132519](https://user-images.githubusercontent.com/74822870/111061316-e2e84600-84cc-11eb-8516-6efccbcb4786.png) ``` settings.json : { "$schema": "https://aka.ms/terminal-profiles-schema", // Add custom actions and keybindings to this array. // To unbind a key combination from your defaults.json, set the command to "unbound". // To learn more about actions and keybindings, visit https://aka.ms/terminal-keybindings "actions": [ // Copy and paste are bound to Ctrl+Shift+C and Ctrl+Shift+V in your defaults.json. // These two lines additionally bind them to Ctrl+C and Ctrl+V. // To learn more about selection, visit https://aka.ms/terminal-selection { "command": { "action": "copy", "singleLine": false }, "keys": "ctrl+c" }, { "command": "paste", "keys": "ctrl+v" }, // Press Ctrl+Shift+F to open the search box { "command": "find", "keys": "ctrl+shift+f" }, // Press Alt+Shift+D to open a new pane. // - "split": "auto" makes this pane open in the direction that provides the most surface area. // - "splitMode": "duplicate" makes the new pane use the focused pane's profile. // To learn more about panes, visit https://aka.ms/terminal-panes { "command": { "action": "splitPane", "split": "auto", "splitMode": "duplicate" }, "keys": "alt+shift+d" } ], "alwaysOnTop": false, "copyFormatting": "none", "copyOnSelect": false, "defaultProfile": "{574e775e-4f2a-5b96-ac1e-a2962a402336}", "experimental.rendering.forceFullRepaint": false, "experimental.rendering.software": false, "profiles": { "defaults": { "altGrAliasing": true, "antialiasingMode": "grayscale", "colorScheme": "Vintage", "experimental.retroTerminalEffect": false, "fontSize": 12, "fontWeight": "normal", "useAcrylic": false }, "list": [ { "commandline": "powershell.exe", "guid": "{61c54bbd-c2c6-5271-96e7-009a87ff44bf}", "hidden": false, "name": "Windows PowerShell" }, { "commandline": "cmd.exe", "guid": "{0caa0dad-35be-5f56-a8ff-afceeeaa6101}", "hidden": false, "name": "Command Prompt" }, { "guid": "{b453ae62-4e3d-5e58-b989-0a998ec441b8}", "hidden": false, "name": "Azure Cloud Shell", "source": "Windows.Terminal.Azure" }, { "guid": "{574e775e-4f2a-5b96-ac1e-a2962a402336}", "hidden": false, "name": "PowerShell", "source": "Windows.Terminal.PowershellCore" } ] }, "schemes": [ { "background": "#0C0C0C", "black": "#0C0C0C", "blue": "#0037DA", "brightBlack": "#767676", "brightBlue": "#3B78FF", "brightCyan": "#61D6D6", "brightGreen": "#16C60C", "brightPurple": "#B4009E", "brightRed": "#E74856", "brightWhite": "#F2F2F2", "brightYellow": "#F9F1A5", "cursorColor": "#FFFFFF", "cyan": "#3A96DD", "foreground": "#CCCCCC", "green": "#13A10E", "name": "Campbell", "purple": "#881798", "red": "#C50F1F", "selectionBackground": "#FFFFFF", "white": "#CCCCCC", "yellow": "#C19C00" }, { "background": "#012456", "black": "#0C0C0C", "blue": "#0037DA", "brightBlack": "#767676", "brightBlue": "#3B78FF", "brightCyan": "#61D6D6", "brightGreen": "#16C60C", "brightPurple": "#B4009E", "brightRed": "#E74856", "brightWhite": "#F2F2F2", "brightYellow": "#F9F1A5", "cursorColor": "#FFFFFF", "cyan": "#3A96DD", "foreground": "#CCCCCC", "green": "#13A10E", "name": "Campbell Powershell", "purple": "#881798", "red": "#C50F1F", "selectionBackground": "#FFFFFF", "white": "#CCCCCC", "yellow": "#C19C00" }, { "background": "#000000", "black": "#0C0C0C", "blue": "#0037DA", "brightBlack": "#767676", "brightBlue": "#3B78FF", "brightCyan": "#61D6D6", "brightGreen": "#16C60C", "brightPurple": "#B4009E", "brightRed": "#E74856", "brightWhite": "#F2F2F2", "brightYellow": "#F9F1A5", "cursorColor": "#FFFFFF", "cyan": "#3A96DD", "foreground": "#FFFFFF", "green": "#13A10E", "name": "Color Scheme 10", "purple": "#881798", "red": "#C50F1F", "selectionBackground": "#FFFFFF", "white": "#CCCCCC", "yellow": "#C19C00" }, { "background": "#000000", "black": "#0C0C0C", "blue": "#0037DA", "brightBlack": "#767676", "brightBlue": "#3B78FF", "brightCyan": "#61D6D6", "brightGreen": "#16C60C", "brightPurple": "#B4009E", "brightRed": "#E74856", "brightWhite": "#F2F2F2", "brightYellow": "#F9F1A5", "cursorColor": "#FFFFFF", "cyan": "#3A96DD", "foreground": "#FFFFFF", "green": "#13A10E", "name": "Color Scheme 11", "purple": "#881798", "red": "#C50F1F", "selectionBackground": "#FFFFFF", "white": "#CCCCCC", "yellow": "#C19C00" }, { "background": "#000000", "black": "#0C0C0C", "blue": "#0037DA", "brightBlack": "#767676", "brightBlue": "#3B78FF", "brightCyan": "#61D6D6", "brightGreen": "#16C60C", "brightPurple": "#B4009E", "brightRed": "#E74856", "brightWhite": "#F2F2F2", "brightYellow": "#F9F1A5", "cursorColor": "#FFFFFF", "cyan": "#3A96DD", "foreground": "#FFFFFF", "green": "#13A10E", "name": "Color Scheme 12", "purple": "#881798", "red": "#C50F1F", "selectionBackground": "#FFFFFF", "white": "#CCCCCC", "yellow": "#C19C00" }, { "background": "#282C34", "black": "#282C34", "blue": "#61AFEF", "brightBlack": "#5A6374", "brightBlue": "#61AFEF", "brightCyan": "#56B6C2", "brightGreen": "#98C379", "brightPurple": "#C678DD", "brightRed": "#E06C75", "brightWhite": "#DCDFE4", "brightYellow": "#E5C07B", "cursorColor": "#FFFFFF", "cyan": "#56B6C2", "foreground": "#DCDFE4", "green": "#98C379", "name": "One Half Dark", "purple": "#C678DD", "red": "#E06C75", "selectionBackground": "#FFFFFF", "white": "#DCDFE4", "yellow": "#E5C07B" }, { "background": "#FAFAFA", "black": "#383A42", "blue": "#0184BC", "brightBlack": "#4F525D", "brightBlue": "#61AFEF", "brightCyan": "#56B5C1", "brightGreen": "#98C379", "brightPurple": "#C577DD", "brightRed": "#DF6C75", "brightWhite": "#FFFFFF", "brightYellow": "#E4C07A", "cursorColor": "#4F525D", "cyan": "#0997B3", "foreground": "#383A42", "green": "#50A14F", "name": "One Half Light", "purple": "#A626A4", "red": "#E45649", "selectionBackground": "#FFFFFF", "white": "#FAFAFA", "yellow": "#C18301" }, { "background": "#002B36", "black": "#002B36", "blue": "#268BD2", "brightBlack": "#073642", "brightBlue": "#839496", "brightCyan": "#93A1A1", "brightGreen": "#586E75", "brightPurple": "#6C71C4", "brightRed": "#CB4B16", "brightWhite": "#FDF6E3", "brightYellow": "#657B83", "cursorColor": "#FFFFFF", "cyan": "#2AA198", "foreground": "#839496", "green": "#859900", "name": "Solarized Dark", "purple": "#D33682", "red": "#DC322F", "selectionBackground": "#FFFFFF", "white": "#EEE8D5", "yellow": "#B58900" }, { "background": "#FDF6E3", "black": "#002B36", "blue": "#268BD2", "brightBlack": "#073642", "brightBlue": "#839496", "brightCyan": "#93A1A1", "brightGreen": "#586E75", "brightPurple": "#6C71C4", "brightRed": "#CB4B16", "brightWhite": "#FDF6E3", "brightYellow": "#657B83", "cursorColor": "#002B36", "cyan": "#2AA198", "foreground": "#657B83", "green": "#859900", "name": "Solarized Light", "purple": "#D33682", "red": "#DC322F", "selectionBackground": "#FFFFFF", "white": "#EEE8D5", "yellow": "#B58900" }, { "background": "#000000", "black": "#000000", "blue": "#3465A4", "brightBlack": "#555753", "brightBlue": "#729FCF", "brightCyan": "#34E2E2", "brightGreen": "#8AE234", "brightPurple": "#AD7FA8", "brightRed": "#EF2929", "brightWhite": "#EEEEEC", "brightYellow": "#FCE94F", "cursorColor": "#FFFFFF", "cyan": "#06989A", "foreground": "#D3D7CF", "green": "#4E9A06", "name": "Tango Dark", "purple": "#75507B", "red": "#CC0000", "selectionBackground": "#FFFFFF", "white": "#D3D7CF", "yellow": "#C4A000" }, { "background": "#FFFFFF", "black": "#000000", "blue": "#3465A4", "brightBlack": "#555753", "brightBlue": "#729FCF", "brightCyan": "#34E2E2", "brightGreen": "#8AE234", "brightPurple": "#AD7FA8", "brightRed": "#EF2929", "brightWhite": "#EEEEEC", "brightYellow": "#FCE94F", "cursorColor": "#000000", "cyan": "#06989A", "foreground": "#555753", "green": "#4E9A06", "name": "Tango Light", "purple": "#75507B", "red": "#CC0000", "selectionBackground": "#FFFFFF", "white": "#D3D7CF", "yellow": "#C4A000" }, { "background": "#000000", "black": "#000000", "blue": "#000080", "brightBlack": "#808080", "brightBlue": "#0000FF", "brightCyan": "#00FFFF", "brightGreen": "#00FF00", "brightPurple": "#FF00FF", "brightRed": "#FF0000", "brightWhite": "#FFFFFF", "brightYellow": "#FFFF00", "cursorColor": "#FFFFFF", "cyan": "#008080", "foreground": "#C0C0C0", "green": "#008000", "name": "Vintage", "purple": "#800080", "red": "#800000", "selectionBackground": "#FFFFFF", "white": "#C0C0C0", "yellow": "#808000" } ], "tabWidthMode": "compact", "theme": "dark" } ```
claunia added the Resolution-Duplicate label 2026-01-31 03:31:41 +00:00
claunia commented 2026-01-31 03:31:42 +00:00
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@skyline75489 commented on GitHub (Mar 14, 2021):

This isn't the first issue about complex scripting in Unicode. Maybe /dup #8000 ?

@skyline75489 commented on GitHub (Mar 14, 2021): This isn't the first issue about complex scripting in Unicode. Maybe /dup #8000 ?
claunia commented 2026-01-31 03:31:42 +00:00
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@jdebp commented on GitHub (Mar 14, 2021):

That might address it in the long term, but in the shorter term it is probably worth investigating why these characters have different widths, which is what appears to be the problem here.

@jdebp commented on GitHub (Mar 14, 2021): That might address it in the long term, but in the shorter term it is probably worth investigating why these characters have different widths, which is what appears to be the problem here.
claunia commented 2026-01-31 03:31:42 +00:00
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@j4james commented on GitHub (Mar 14, 2021):

I believe these scripts are all abugidas, so many of the glyphs are probably made up of a combination of characters. So for example you can have two code points rendering as a single glyph, and thus occupying two screen cells, so that's probably what we're seeing here. You can get the same effect with latin text using combining diacritics. For example if you write out an e following by a combining acute accent (U+0301), you'll get the glyph é occupying two cells.

The point of issue #8000, as skyline75489 mentioned, is to improve the rendering of theses sorts of things. I think the problem is going to be in getting that to work in a way that is compatible with wcwidth, and I have my doubts about that being feasible. Personally I would have preferred these writing systems were handled with a separate mode, the same way some of the DEC terminals worked, but it's not something I feel strongly about .

@j4james commented on GitHub (Mar 14, 2021): I believe these scripts are all abugidas, so many of the glyphs are probably made up of a combination of characters. So for example you can have two code points rendering as a single glyph, and thus occupying two screen cells, so that's probably what we're seeing here. You can get the same effect with latin text using combining diacritics. For example if you write out an `e` following by a combining acute accent (U+0301), you'll get the glyph `é` occupying two cells. The point of issue #8000, as skyline75489 mentioned, is to improve the rendering of theses sorts of things. I think the problem is going to be in getting that to work in a way that is compatible with wcwidth, and I have my doubts about that being feasible. Personally I would have preferred these writing systems were handled with a separate mode, the same way some of the DEC terminals worked, but it's not something I feel strongly about .
claunia commented 2026-01-31 03:31:42 +00:00
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@DHowett commented on GitHub (Mar 15, 2021):

Yeah -- this is an unfortunate outcome of us summing up the number of cells covered by the codepoints comprising a character and then trying to render its glyph in those cells. #8000 will be a crack at making us support glyphs that take more than 2 cells. Measurement is left for a future workitem. That future workitem is #1472, which tracks getting us capable of properly measuring the space occupied by a stream of codepoints and rendering it.

I too wish that there were a separate mode for letting the Terminal figure out how wide things are without having to disagree on wcwidth/wcswidth, but I think that ship's sailed. ☹️

/dup #1472

@DHowett commented on GitHub (Mar 15, 2021): Yeah -- this is an unfortunate outcome of us summing up the number of cells covered by the codepoints comprising a character and then trying to render its glyph _in those cells_. #8000 will be a crack at making us _support glyphs that take more than 2 cells_. Measurement is left for a future workitem. That future workitem is #1472, which tracks getting us capable of properly measuring the space occupied by a stream of codepoints and rendering it. I too wish that there were a separate mode for letting the Terminal figure out how wide things are without having to disagree on wcwidth/wcswidth, but I think that ship's sailed. ☹️ /dup #1472
claunia commented 2026-01-31 03:31:43 +00:00
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@ghost commented on GitHub (Mar 15, 2021):

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!

@ghost commented on GitHub (Mar 15, 2021): Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!
claunia commented 2026-01-31 03:31:43 +00:00
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@SmartManoj commented on GitHub (Dec 17, 2024):

Still persists in Version: 1.21.3231.0; Microsoft Windows [Version 10.0.22631.4541]

Text: மது

Image

@SmartManoj commented on GitHub (Dec 17, 2024): Still persists in Version: 1.21.3231.0; Microsoft Windows [Version 10.0.22631.4541] Text: மது ![Image](https://github.com/user-attachments/assets/cea466f7-78fb-457b-a86b-dc716f9fda53)
claunia commented 2026-01-31 03:31:44 +00:00
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@lhecker commented on GitHub (Dec 17, 2024):

The issue is that we rely on the "East Asian With" spec by Unicode, like pretty much all terminals: https://www.unicode.org/reports/tr11/
As the name suggests, for southeastern languages it just says, "no designated width", which we by convention have to assume is 1 column wide. If you can find >1 terminal that solve this issue (= which we could use as reference), please let us know by opening a new issue for it. 🙂

@lhecker commented on GitHub (Dec 17, 2024): The issue is that we rely on the "East Asian With" spec by Unicode, like pretty much all terminals: https://www.unicode.org/reports/tr11/ As the name suggests, for southeastern languages it just says, "no designated width", which we by convention have to assume is 1 column wide. If you can find >1 terminal that solve this issue (= which we could use as reference), please let us know by opening a new issue for it. 🙂
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