51 lines
1.4 KiB
Plaintext
51 lines
1.4 KiB
Plaintext
/**
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* The code in this file is copied from https://github.com/lukeed/clsx and modified to suit the needs of tailwind-merge better.
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*
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* Specifically:
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* - Runtime code from https://github.com/lukeed/clsx/blob/v1.2.1/src/index.js
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* - TypeScript types from https://github.com/lukeed/clsx/blob/v1.2.1/clsx.d.ts
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*
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* Original code has MIT license: Copyright (c) Luke Edwards <luke.edwards05@gmail.com> (lukeed.com)
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*/
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export type ClassNameValue = ClassNameArray | string | null | undefined | 0 | 0n | false
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type ClassNameArray = ClassNameValue[]
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export const twJoin = (...classLists: ClassNameValue[]): string => {
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let index = 0
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let argument: ClassNameValue
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let resolvedValue: string
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let string = ''
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while (index < classLists.length) {
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if ((argument = classLists[index++])) {
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if ((resolvedValue = toValue(argument))) {
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string && (string += ' ')
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string += resolvedValue
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}
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}
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}
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return string
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}
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const toValue = (mix: ClassNameArray | string): string => {
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// Fast path for strings
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if (typeof mix === 'string') {
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return mix
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}
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let resolvedValue: string
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let string = ''
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for (let k = 0; k < mix.length; k++) {
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if (mix[k]) {
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if ((resolvedValue = toValue(mix[k] as ClassNameArray | string))) {
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string && (string += ' ')
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string += resolvedValue
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}
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}
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}
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return string
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}
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