@csstools/postcss-rewrite-url/dist/index.mjs

Rewrite url values in CSS

import{tokenize as r,isTokenString as e}from"@csstools/css-tokenizer";import{parseCommaSeparatedListOfComponentValues as t,replaceComponentValues as o,isFunctionNode as s,isWhiteSpaceOrCommentNode as i,isTokenNode as a,parseListOfComponentValues as l,stringify as n}from"@csstools/css-parser-algorithms";function serializeString(r){let e="";for(const t of r){const r=t.codePointAt(0);if(void 0!==r)switch(r){case 0:e+=String.fromCodePoint(65533);break;case 127:e+=`\\${r.toString(16)}`;break;case 34:case 39:case 92:e+=`\\${t}`;break;default:if(1<=r&&r<=31){e+=`\\${r.toString(16)} `;break}e+=t}else e+=String.fromCodePoint(65533)}return e}const u=/rewrite-url\(/i,c=/^rewrite-url$/i,creator=r=>{const e=r?.rewriter??(r=>r);return{postcssPlugin:"postcss-rewrite-url",Once(r,{result:t}){r.walkDecls((r=>{rewriteDeclaration(r,t,e)})),r.walkAtRules((r=>{rewriteAtRule(r,t,e)}))},Declaration(r,{result:t}){rewriteDeclaration(r,t,e)},AtRule(r,{result:t}){rewriteAtRule(r,t,e)}}};function rewriteDeclaration(r,e,t){if(!u.test(r.value))return;const o={type:"declaration-value",rootFrom:e.opts.from,from:r.source?.input.from,property:r.prop},s=rewrite(t,r.value,o);s!==r.value&&(r.value=s)}function rewriteAtRule(r,e,t){if(!u.test(r.params))return;const o={type:"at-rule-prelude",rootFrom:e.opts.from,from:r.source?.input.from,atRuleName:r.name},s=rewrite(t,r.params,o);s!==r.params&&(r.params=s)}function rewrite(u,f,m){const p=t(r({css:f})),w=o(p,(t=>{if(!s(t)||!c.test(t.getName()))return;const o=t.value.filter((r=>!i(r)));for(let s=0;s<o.length;s++){const i=o[s];if(a(i)&&e(i.value)){const e=i.value[4].value.trim(),a=o.slice(s+1),n=u({url:e,urlModifiers:a.map((r=>r.toString()))},m);if(!1===n)return;const c=l(r({css:[`"${serializeString(n.url)}"`,...n.urlModifiers??a].join(" ")}));return t.value=c,t.name[1]="url(",t.name[4].value="url",t}return}}));return n(w)}creator.postcss=!0;export{creator as default};