@accelint/constants

A collection of commonly used constant values for Accelint projects.

Installation

pnpm add @accelint/constants

Usage

Import from the main package or specific subpaths:

// Import all constants
import { DEFAULT_COORDINATE, HEX_REGEX } from '@accelint/constants';

// Import from subpaths
import { CSS_RGBA_LEGACY_REGEX, CSS_RGBA_MODERN_REGEX, HEX_REGEX } from '@accelint/constants/color';
import { DEFAULT_COORDINATE } from '@accelint/constants/coordinates';

Constants

Color

Regex patterns for parsing color strings in various formats.

HEX_REGEX

Matches hex color formats with or without the # prefix.

Supported formats:

• 3-character: #RGB or RGB
• 4-character: #RGBA or RGBA
• 6-character: #RRGGBB or RRGGBB
• 8-character: #RRGGBBAA or RRGGBBAA

import { HEX_REGEX } from '@accelint/constants/color';

HEX_REGEX.test('#FF8040');     // true
HEX_REGEX.test('FF8040');      // true
HEX_REGEX.test('#F84');        // true
HEX_REGEX.test('#FF804080');   // true

CSS_RGBA_LEGACY_REGEX

Matches legacy comma-separated CSS color syntax (CSS Color Module Level 3).

Supported formats:

• rgb(r, g, b)
• rgba(r, g, b, a)
• Supports integers and percentages for RGB values
• Supports decimals and percentages for alpha

import { CSS_RGBA_LEGACY_REGEX } from '@accelint/constants/color';

CSS_RGBA_LEGACY_REGEX.test('rgb(255, 128, 64)');        // true
CSS_RGBA_LEGACY_REGEX.test('rgba(255, 128, 64, 0.5)'); // true
CSS_RGBA_LEGACY_REGEX.test('rgb(100%, 50%, 25%)');     // true

CSS_RGBA_MODERN_REGEX

Matches modern space-separated CSS color syntax (CSS Color Module Level 4).

Supported formats:

• rgb(r g b)
• rgb(r g b / a)
• Supports integers and percentages for RGB values
• Supports decimals and percentages for alpha

import { CSS_RGBA_MODERN_REGEX } from '@accelint/constants/color';

CSS_RGBA_MODERN_REGEX.test('rgb(255 128 64)');          // true
CSS_RGBA_MODERN_REGEX.test('rgb(255 128 64 / 0.5)');   // true
CSS_RGBA_MODERN_REGEX.test('rgb(100% 50% 25%)');       // true

Coordinates

DEFAULT_COORDINATE

Default empty coordinate value [NaN, NaN].

Using [0, 0] as a default is incorrect because it represents a real location in the Atlantic Ocean known as "Null Island" (where the prime meridian meets the equator in the Gulf of Guinea).

import { DEFAULT_COORDINATE } from '@accelint/constants/coordinates';

const userLocation = coordinates ?? DEFAULT_COORDINATE;

License

Apache-2.0