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143 lines
3.1 KiB
Markdown
143 lines
3.1 KiB
Markdown
---
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id: 6994cff2290543b3aec9f50f
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title: "Challenge 210: HSL Validator"
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challengeType: 29
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dashedName: challenge-210
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---
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# --description--
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Given a string, determine whether it is a valid CSS `hsl()` color value.
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- A valid HSL value must be in the format `"hsl(h, s%, l%)"`, where:
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- `h` (hue) must be a number between 0 and 360 (inclusive).
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- `s` (saturation) must be a percentage between 0% and 100%.
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- `l` (lightness) must be a percentage between 0% and 100%.
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- Spaces are only allowed:
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- After the opening parenthesis
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- Before and/or after the commas
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- Before and/or after closing parenthesis
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- Optionally, the value can end with a semi-colon (`";"`).
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For example, `"hsl(240, 50%, 50%)"` is a valid HSL value.
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# --hints--
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`is_valid_hsl("hsl(240, 50%, 50%)")` should return `True`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertIs(is_valid_hsl("hsl(240, 50%, 50%)"), True)`)
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}})
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```
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`is_valid_hsl("hsl( 200 , 50% , 75% )")` should return `True`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertIs(is_valid_hsl("hsl( 200 , 50% , 75% )"), True)`)
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}})
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```
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`is_valid_hsl("hsl(99,60%,80%);")` should return `True`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertIs(is_valid_hsl("hsl(99,60%,80%);"), True)`)
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}})
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```
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`is_valid_hsl("hsl(0, 0%, 0%) ;")` should return `True`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertIs(is_valid_hsl("hsl(0, 0%, 0%) ;"), True)`)
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}})
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```
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`is_valid_hsl("hsl( 10 , 20% , 30% ) ;")` should return `True`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertIs(is_valid_hsl("hsl( 10 , 20% , 30% ) ;"), True)`)
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}})
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```
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`is_valid_hsl("hsl(361, 50%, 80%)")` should return `False`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertIs(is_valid_hsl("hsl(361, 50%, 80%)"), False)`)
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}})
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```
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`is_valid_hsl("hsl(300, 101%, 70%)")` should return `False`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertIs(is_valid_hsl("hsl(300, 101%, 70%)"), False)`)
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}})
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```
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`is_valid_hsl("hsl(200, 55%, 75)")` should return `False`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertIs(is_valid_hsl("hsl(200, 55%, 75)"), False)`)
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}})
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```
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`is_valid_hsl("hsl (80, 20%, 10%)")` should return `False`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertIs(is_valid_hsl("hsl (80, 20%, 10%)"), False)`)
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}})
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```
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# --seed--
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## --seed-contents--
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```py
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def is_valid_hsl(hsl):
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return hsl
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```
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# --solutions--
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```py
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import re
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def is_valid_hsl(hsl):
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pattern = r"^hsl\(\s*(\d{1,3})\s*,\s*(\d{1,3})%\s*,\s*(\d{1,3})%\s*\)\s*;?$"
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match = re.match(pattern, hsl)
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if not match:
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return False
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hue = int(match.group(1))
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sat = int(match.group(2))
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light = int(match.group(3))
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if not (0 <= hue <= 360):
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return False
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if not (0 <= sat <= 100):
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return False
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if not (0 <= light <= 100):
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return False
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return True
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```
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