Added feature isHSL

README.md

@@ -106,6 +106,7 @@ Validator                               | Description
 **isHash(str, algorithm)**              | check if the string is a hash of type algorithm.<br/><br/>Algorithm is one of `['md4', 'md5', 'sha1', 'sha256', 'sha384', 'sha512', 'ripemd128', 'ripemd160', 'tiger128', 'tiger160', 'tiger192', 'crc32', 'crc32b']`
 **isHexadecimal(str)**                  | check if the string is a hexadecimal number.
 **isHexColor(str)**                     | check if the string is a hexadecimal color.
+**isHSL(str)**                          | check if the string is an HSL (hue, saturation, lightness) color.
 **isIdentityCard(str [, locale])**      | check if the string is a valid identity card code.<br/><br/>`locale` is one of `['ES', 'zh-TW', 'he-IL']` OR `'any'`. If 'any' is used, function will check if any of the locals match.<br/><br/>Defaults to 'any'.
 **isIn(str, values)**                   | check if the string is in a array of allowed values.
 **isInt(str [, options])**              | check if the string is an integer.<br/><br/>`options` is an object which can contain the keys `min` and/or `max` to check the integer is within boundaries (e.g. `{ min: 10, max: 99 }`). `options` can also contain the key `allow_leading_zeroes`, which when set to false will disallow integer values with leading zeroes (e.g. `{ allow_leading_zeroes: false }`). Finally, `options` can contain the keys `gt` and/or `lt` which will enforce integers being greater than or less than, respectively, the value provided (e.g. `{gt: 1, lt: 4}` for a number between 1 and 4).

src/index.js

@@ -37,6 +37,7 @@ import isOctal from './lib/isOctal';
 import isDivisibleBy from './lib/isDivisibleBy';
 
 import isHexColor from './lib/isHexColor';
+import isHSL from './lib/isHSL';
 
 import isISRC from './lib/isISRC';
 
@@ -141,6 +142,7 @@ const validator = {
   isOctal,
   isDivisibleBy,
   isHexColor,
+  isHSL,
   isISRC,
   isMD5,
   isHash,

src/lib/isHSL.js

@@ -0,0 +1,8 @@
+import assertString from './util/assertString';
+
+const hsl = /^(hsl)\(\s*(\+|\-)?0*[0-9]+\s*,\s*0*(0?[0-9]?[0-9]|100)%\s*,\s*0*(0?[0-9]?[0-9]|100)%\s*\)$/i;
+
+export default function isHSL(str) {
+  assertString(str);
+  return hsl.test(str);
+}

test/validators.js

@@ -2599,6 +2599,33 @@ describe('Validators', () => {
     });
   });
 
+  it('should validate HSL color strings', () => {
+    test({
+      validator: 'isHSL',
+      valid: [
+        'hsl(360,0000000000100%,000000100%)',
+        'hsl(000010, 00000000001%, 00000040%)',
+        'HSL(00000,0000000000100%,000000100%)',
+        'hsL(0, 0%, 0%)',
+        'hSl(  360  , 100%  , 100%   )',
+        'Hsl(  00150  , 000099%  , 01%   )',
+        'hsl(01080, 03%, 4%)',
+        'hsl(-540, 03%, 4%)',
+        'hsl(+540, 03%, 4%)',
+      ],
+      invalid: [
+        'hsl (360,0000000000100%,000000100%)',
+        'hsl(0260, 101%, 100%)',
+        'hsl(0160, 100%, 101%)',
+        'hsl(0160, -100%, 101%)',
+        'hsl(-0160, 100$, 100%)',
+        'hsl(-0160, 100%, 100a)',
+        'hsl(-0160, 1000%, 101%)',
+        'hsl(-0160, 100%, -101%)',
+      ],
+    });
+  });
+
   it('should validate ISRC code strings', () => {
     test({
       validator: 'isISRC',