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// Parse unit value
export const numberAndUnit = /^([+-]?(\d+(\.\d*)?|\.\d+)(e[+-]?\d+)?)([a-z%]*)$/i
// Parse hex value
export const hex = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i
// Parse rgb value
export const rgb = /rgb\((\d+),(\d+),(\d+)\)/
// Parse reference id
export const reference = /(#[a-z_][a-z0-9\-_]*)/i
// splits a transformation chain
export const transforms = /\)\s*,?\s*/
// Whitespace
export const whitespace = /\s/g
// Test hex value
export const isHex = /^#[a-f0-9]{3}$|^#[a-f0-9]{6}$/i
// Test rgb value
export const isRgb = /^rgb\(/
// Test for blank string
export const isBlank = /^(\s+)?$/
// Test for numeric string
export const isNumber = /^[+-]?(\d+(\.\d*)?|\.\d+)(e[+-]?\d+)?$/i
// Test for image url
export const isImage = /\.(jpg|jpeg|png|gif|svg)(\?[^=]+.*)?/i
// split at whitespace and comma
export const delimiter = /[\s,]+/
// Test for path letter
export const isPathLetter = /[MLHVCSQTAZ]/i
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