respect-validation/docs/validators/Xdigit.md
Alexandre Gomes Gaigalas 16148e9593 Standardize and improve validation message templates
- Remove redundant "valid" prefix:
   Date, DateTime, DateTimeDiff, Domain, Email, Iban, Imei, Ip, Isbn, Json, LanguageCode, LeapDate, LeapYear, Luhn, MacAddress, NfeAccessKey, Nif, Nip, Pesel, Phone, Pis, PolishIdCard, PostalCode, Roman, Slug, Tld, Url, Uuid, Version.

 - Remove redundant "value" suffix
   ArrayVal, BoolVal, Countable, FloatVal, IntVal, IterableVal, NumericVal, ScalarVal, StringVal.

 - Standardize "consist only of" phrasing
   Alnum, Alpha, Cntrl, Consonant, Digit, Graph, Lowercase, Printable, Punct, Space, Spaced, Uppercase, Vowel, Xdigit.

 - Improve file accessibility messages
   Directory, Executable, File, Image, Readable, SymbolicLink, Writable.

 - Improve grammar and article usage
   CreditCard, Extension, Mimetype, Regex, Size.
2026-02-03 19:58:55 +00:00

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SPDX-License-Identifier: MIT
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# Xdigit
- `Xdigit()`
- `Xdigit(string ...$additionalChars)`
Validates whether the input is an hexadecimal number or not.
```php
v::xdigit()->assert('abc123');
// Validation passes successfully
```
Notice, however, that it doesn't accept strings starting with 0x:
```php
v::xdigit()->assert('0x1f');
// → "0x1f" must consist only of hexadecimal digits
```
## Templates
### `Xdigit::TEMPLATE_STANDARD`
| Mode | Template |
| ---------: | :------------------------------------------------------ |
| `default` | {{subject}} must consist only of hexadecimal digits |
| `inverted` | {{subject}} must not consist only of hexadecimal digits |
### `Xdigit::TEMPLATE_EXTRA`
| Mode | Template |
| ---------: | :----------------------------------------------------------------------------- |
| `default` | {{subject}} must consist only of hexadecimal digits or {{additionalChars}} |
| `inverted` | {{subject}} must not consist only of hexadecimal digits or {{additionalChars}} |
## Template placeholders
| Placeholder | Description |
| ----------------- | ---------------------------------------------------------------- |
| `additionalChars` | Additional characters that are considered valid. |
| `subject` | The validated input or the custom validator name (if specified). |
## Categorization
- Strings
## Changelog
| Version | Description |
| ------: | :---------------- |
| 3.0.0 | Templates changed |
| 0.5.0 | Created |
## See Also
- [Alnum](Alnum.md)
- [Decimal](Decimal.md)
- [Digit](Digit.md)
- [HexRgbColor](HexRgbColor.md)