Set a mask with Cyrillic characters in InputMask

[Thr0TT1e]

Greetings.

Could you please advise how to enable Cyrillic in the InputMask component, if the mask attribute accepts the string.

I need the pattern to be `[А-Я]{4}.99999-99''.

Stack: Vue 3, PrimeVue.

[magicoff]

I can confirm this issue. The InputMask component doesn't support Cyrillic (or any non-Latin) characters because the built-in definitions only accept Latin letters:

// InputMask.vue — line ~370
this.defs = {
    9: '[0-9]',
    a: '[A-Za-z]',
    '*': '[A-Za-z0-9]'
};

The a symbol uses [A-Za-z] regex, which excludes Cyrillic, Arabic, Chinese, and all other non-Latin scripts.

Workaround

I created a custom component based on the original InputMask source with extended definitions:

// CyrillicInputMask.vue
this.defs = {
    9: '[0-9]',
    a: '[A-Za-z]',           // Latin only
    ы: '[А-Яа-яЁё]',         // Cyrillic only (custom symbol)
    '*': '[A-Za-zА-Яа-яЁё0-9]'  // Latin + Cyrillic + digits
};

Usage example:

<CyrillicInputMask 
    v-model="ingotNumber" 
    mask="ы{9}.99999-99" 
    placeholder="ы{_}._____-__" 
    slotChar="_" 
/>

Suggestion

It would be great if the core InputMask could support Unicode letters out of the box, perhaps by using \p{L} (Unicode property escape) instead of [A-Za-z]:

// Proposed improvement
this.defs = {
    9: '[0-9]',
    a: '\\p{L}',              // Any Unicode letter (Latin, Cyrillic, Arabic, etc.)
    '*': '[\\p{L}0-9]'        // Any Unicode letter + digits
};

Note: \p{L} requires the u flag on the RegExp: new RegExp('\\p{L}', 'u').

This would make InputMask truly international without needing custom symbols for each language.

[magicoff]

use 'ы' instead ы