bug #44967 [Validator] Multi decimal to alpha for CssColor validator (tilimac)

This PR was squashed before being merged into the 5.4 branch.

Discussion
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[Validator] Multi decimal to alpha for CssColor validator

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix #44966
| License       | MIT
| Doc PR        | symfony/symfony-docs#... <!-- required for new features -->

Add multi decimal to alpha value (rgba and hsla) for CssColor validator

Commits
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b6e8cf7739 [Validator] Multi decimal to alpha for CssColor validator

Author: fabpot

Constraints/CssColorValidator.php

@@ -33,9 +33,9 @@ class CssColorValidator extends ConstraintValidator
     private const PATTERN_SYSTEM_COLORS = '/^(Canvas|CanvasText|LinkText|VisitedText|ActiveText|ButtonFace|ButtonText|ButtonBorder|Field|FieldText|Highlight|HighlightText|SelectedItem|SelectedItemText|Mark|MarkText|GrayText)$/i';
     private const PATTERN_KEYWORDS = '/^(transparent|currentColor)$/i';
     private const PATTERN_RGB = '/^rgb\(\s*(0|255|25[0-4]|2[0-4]\d|1\d\d|0?\d?\d),\s*(0|255|25[0-4]|2[0-4]\d|1\d\d|0?\d?\d),\s*(0|255|25[0-4]|2[0-4]\d|1\d\d|0?\d?\d)\s*\)$/i';
-    private const PATTERN_RGBA = '/^rgba\(\s*(0|255|25[0-4]|2[0-4]\d|1\d\d|0?\d?\d),\s*(0|255|25[0-4]|2[0-4]\d|1\d\d|0?\d?\d),\s*(0|255|25[0-4]|2[0-4]\d|1\d\d|0?\d?\d),\s*(0|0?\.\d|1(\.0)?)\s*\)$/i';
+    private const PATTERN_RGBA = '/^rgba\(\s*(0|255|25[0-4]|2[0-4]\d|1\d\d|0?\d?\d),\s*(0|255|25[0-4]|2[0-4]\d|1\d\d|0?\d?\d),\s*(0|255|25[0-4]|2[0-4]\d|1\d\d|0?\d?\d),\s*(0|0?\.\d+|1(\.0)?)\s*\)$/i';
     private const PATTERN_HSL = '/^hsl\(\s*(0|360|35\d|3[0-4]\d|[12]\d\d|0?\d?\d),\s*(0|100|\d{1,2})%,\s*(0|100|\d{1,2})%\s*\)$/i';
-    private const PATTERN_HSLA = '/^hsla\(\s*(0|360|35\d|3[0-4]\d|[12]\d\d|0?\d?\d),\s*(0|100|\d{1,2})%,\s*(0|100|\d{1,2})%,\s*(0?\.\d|1(\.0)?)\s*\)$/i';
+    private const PATTERN_HSLA = '/^hsla\(\s*(0|360|35\d|3[0-4]\d|[12]\d\d|0?\d?\d),\s*(0|100|\d{1,2})%,\s*(0|100|\d{1,2})%,\s*(0|0?\.\d+|1(\.0)?)\s*\)$/i';
 
     private const COLOR_PATTERNS = [
         CssColor::HEX_LONG => self::PATTERN_HEX_LONG,

Tests/Constraints/CssColorValidatorTest.php

@@ -225,6 +225,7 @@ public function getValidRGBA(): array
             ['rgba(   255,      255,     255,    0.3         )'], ['rgba(255,      255,     255,    0.3)'], ['rgba(255,      255,     255,    .3)'],
             ['rgba(255, 255, 255, 0.3)'], ['rgba(0, 0, 0, 0.3)'], ['rgba(0, 0, 255, 0.3)'], ['rgba(255, 0, 0, 0.3)'], ['rgba(122, 122, 122, 0.3)'], ['rgba(66, 66, 66, 0.3)'],
             ['rgba(255,255,255,0.3)'], ['rgba(0,0,0,0.3)'], ['rgba(0,0,255,0.3)'], ['rgba(255,0,0,0.3)'], ['rgba(122,122,122,0.3)'], ['rgba(66,66,66,0.3)'],
+            ['rgba(255,255,255,1)'], ['rgba(0,0,0,0)'], ['rgba(0,0,255,1.0)'], ['rgba(255,0,0,0.3)'], ['rgba(122,122,122,.35)'], ['rgba(66,66,66,0.355)'],
         ];
     }
 
@@ -261,6 +262,7 @@ public function getValidHSLA(): array
             ['hsla(   0,    0%,     20%,   0.4     )'], ['hsla(0,    0%,     20%,   0.4)'], ['hsla(0,    0%,     20%,   .4)'],
             ['hsla(0, 0%, 20%, 0.4)'], ['hsla(0, 100%, 50%, 0.4)'], ['hsla(147, 50%, 47%, 0.4)'], ['hsla(46, 100%, 0%, 0.4)'],
             ['hsla(0,0%,20%,0.4)'], ['hsla(0,100%,50%,0.4)'], ['hsla(147,50%,47%,0.4)'], ['hsla(46,100%,0%,0.4)'],
+            ['hsla(0,0%,20%,1)'], ['hsla(0,100%,50%,0)'], ['hsla(147,50%,47%,1.0)'], ['hsla(46,100%,0%,.34)'], ['hsla(46,100%,0%,0.355)'],
         ];
     }