Adds new documentation for Alpha validator

docs/book/validators.md

@@ -57,67 +57,3 @@ languages therefore are unsupported with regards to the `Alnum` validator.
 
 When using the `Alnum` validator with these languages, the input will be validated
 using the English alphabet.
-
-## Alpha
-
-`Laminas\I18n\Validator\Alpha` allows you to validate if a given value contains
-only alphabetical characters. There is no length limitation for the input you
-want to validate. This validator is identical to the `Laminas\I18n\Validator\Alnum`
-validator with the exception that it does not accept digits.
-
-### Supported options
-
-The following options are supported for `Laminas\I18n\Validator\Alpha`:
-
-- `allowWhiteSpace`: Whether or not whitespace characters are allowed. This
-  option defaults to `FALSE`.
-
-### Basic usage
-
-```php
-$validator = new Laminas\I18n\Validator\Alpha();
-if ($validator->isValid('Abcd')) {
-    // value contains only allowed chars
-} else {
-    // false
-}
-```
-
-### Using whitespace
-
-By default, whitespace is not accepted as it is not part of the alphabet.
-However, if you want to validate complete sentences or phrases, you may need to
-allow whitespace; this can be done via the `allowWhiteSpace` option, either at
-instantiation or afterwards via the `setAllowWhiteSpace()` method.
-
-To get the current state of the flag, use the `getAllowWhiteSpace()` method.
-
-```php
-$validator = new Laminas\I18n\Validator\Alpha(['allowWhiteSpace' => true]);
-
-// or set it via method call:
-$validator->setAllowWhiteSpace(true);
-
-if ($validator->isValid('Abcd and efg')) {
-    // value contains only allowed chars
-} else {
-    // false
-}
-```
-
-### Using different languages
-
-When using `Laminas\I18n\Validator\Alpha`, the language provided by the user's
-browser will be used to set the allowed characters. For locales outside of
-English, this means that additional alphabetic characters may be used
-— such as `ä`, `ö` and `ü` from the German alphabet.
-
-Which characters are allowed depends completely on the language, as every
-language defines its own set of characters.
-
-Three languages supported by ext/intl, however, define multibyte characters,
-which cannot be matched as alphabetic characters using normal string or regular
-expression options. These include *Korean*, *Japanese*, and *Chinese*.
-
-As a result, when using the `Alpha` validator with these languages, the input
-will be validated using the English alphabet.

docs/book/validators/alpha.md

@@ -0,0 +1,73 @@
+# Alpha
+
+`Laminas\I18n\Validator\Alpha` allows you to validate if a given value
+**contains only alphabetical characters**. This validator is identical to the
+[`Laminas\I18n\Validator\Alnum` validator](alnum.md) with the exception that it
+does not accept digits.
+
+## Basic Usage
+
+```php
+$validator = new Laminas\I18n\Validator\Alpha();
+
+if ($validator->isValid('Abcd')) {
+    // Value contains only allowed chars
+}
+```
+
+## Using Whitespace
+
+By default, whitespace is not accepted as it is not part of the alphabet.
+However, if you want to validate complete sentences or phrases, you may need to
+allow whitespace; this can be done via the `allowWhiteSpace` option, either at
+instantiation or afterwards via the `setAllowWhiteSpace()` method.
+
+```php fct_label="Constructor Usage"
+$validator = new Laminas\I18n\Validator\Alpha(['allowWhiteSpace' => true]);
+
+if ($validator->isValid('Abcd and efg')) {
+    // Value contains only allowed chars
+}
+```
+
+```php fct_label="Setter Usage"
+$validator = new Laminas\I18n\Validator\Alpha();
+$validator->setAllowWhiteSpace(true);
+
+if ($validator->isValid('Abcd and efg')) {
+    // Value contains only allowed chars
+}
+```
+
+### Get Current Value
+
+To get the current value of this option, use the `getAllowWhiteSpace()` method.
+
+```php
+$validator = new Laminas\I18n\Validator\Alpha(['allowWhiteSpace' => true]);
+
+$result = $validator->getAllowWhiteSpace(); // true
+```
+
+### Default Value
+
+The default value of this option is `false` that means whitespace characters are
+not allowed.
+
+## Using different Languages
+
+When using `Laminas\I18n\Validator\Alpha`, the language provided by the user's
+browser will be used to set the allowed characters. For locales outside of
+English, this means that additional alphabetic characters may be used
+— such as `ä`, `ö` and `ü` from the German alphabet.
+
+Which characters are allowed depends completely on the language, as every
+language defines its own set of characters.
+
+Three languages supported by PHP's internationalization extension (`ext/intl`),
+however, define multibyte characters, which cannot be matched as alphabetic
+characters using normal string or regular expression options. These include
+*Korean*, *Japanese*, and *Chinese*.
+
+As a result, when using the `Alpha` validator with these languages, the input
+will be validated using the English alphabet.

mkdocs.yml

@@ -9,6 +9,7 @@ nav:
         - Filters: filters.md
         - Validators:
             - 'Standard Validators': validators.md
+            - Alpha: validators/alpha.md
             - DateTime: validators/date-time.md
             - IsFloat: validators/is-float.md
             - IsInt: validators/is-int.md