index.mjs

import s from"@csstools/postcss-progressive-custom-properties";import{hasFallback as o,hasSupportsAtRuleAncestor as r}from"@csstools/utilities";import{tokenize as t}from"@csstools/css-tokenizer";import{replaceComponentValues as e,parseCommaSeparatedListOfComponentValues as c,isFunctionNode as n,stringify as i}from"@csstools/css-parser-algorithms";import{color as p,SyntaxFlag as l,serializeRGB as a}from"@csstools/css-color-parser";const u=/\bcontrast-color\(/i,m=/^contrast-color$/i,basePlugin=s=>({postcssPlugin:"postcss-contrast-color-function",prepare:()=>({postcssPlugin:"postcss-contrast-color-function",Declaration(f){const g=f.value;if(!u.test(g))return;if(o(f))return;if(r(f,u))return;const v=t({css:g}),P=e(c(v),(s=>{if(!n(s)||!m.test(s.getName()))return;const o=p(s);return o&&!o.syntaxFlags.has(l.HasNoneKeywords)?a(o):void 0})),b=i(P);b!==g&&(f.cloneBefore({value:b}),s?.preserve||f.remove())}})});basePlugin.postcss=!0;const postcssPlugin=o=>{const r=Object.assign({enableProgressiveCustomProperties:!0,preserve:!0},o);return r.enableProgressiveCustomProperties&&r.preserve?{postcssPlugin:"postcss-contrast-color-function",plugins:[s(),basePlugin(r)]}:basePlugin(r)};postcssPlugin.postcss=!0;export{postcssPlugin as default};