BUG: Dead keys with spurious character

[Cosmic Chaos]

Hi there! My name is Leonardo Alvaro from Mexico, and I've been a Vim user for almost a year now... I started my journey with Vim 8.2 for Windows 10 and it was quite a struggle to get everything working as I wanted, so after I had some basic understanding I moved to NeoVim. That's when I started learning vimscript and more advanced stuff. After I heard about the 9.0 release of Vim I wondered if it would have solved some issues I had back then, and to my surprise it actually did. So I decided to give Vim 9.0 a try.

Now, here's where the problems come again. I have found this bug when I was trying to type normally with the Spanish keyboard layout. I was so disconcerted by this that I decided it would be a fairly worthwhile bug report.

Also, in my search to overcome this issue I discovered the 'keymap' functionality and I found that the spanish-qwerty layout was missing, so I made one that matches precisely the behavior of the standard Latin American keyboard layout. I attached that file to this email.

And now, here's the little report I wrote for the bug. I hope everything's clear enough.

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BUG: Dead keys with spurious character

NOTES:

    * MS-Windows 64-bit console version exclusive issue

    * It has been tested with the following keyboard layouts:

        - Latin American

DESCRIPTION:

    An additional spurious character is added when a dead key

    combination is tried.

    With the Latin American keyboard layout:

    Dead keys: [´¨]

    Spurious characters: [;:]

    For the sake of an example, here's the contrast between the

    expected and the obtained output when typing 'linguistics' in

    Spanish:

    Expected: lingüística

    Obtained: ling:ü;ística

    To make it even clearer here's a table contrasting the keyboard

    input, the obtained output, and the expected output:

    KEYBOAD INPUT   OBTAINED      EXPECTED

    --------------- ------------- ---------

    ´<Space>        ;´            ´

    ´´              ;´´           ´´

    ´a´e´i´o´u´     ;á;é;í;ó;ú    áéíóú

    ´A´E´I´O´U´     ;Á;É;Í;Ó;Ú    ÁÉÍÓÚ

    ¨<Space>        :¨            ¨

    ¨¨              :¨¨           ¨¨

    ¨u¨U            :ü:Ü          üÜ

    * Even though it may seem so, they are not composite characters,

    they all form part of the extended ASCII.

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In fact, I have more bugs to report, and even a typo in the documentation, but I don't want to bloat this email with a bunch of unrelated issues.