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TheEmeraldStarr 2021-08-08 14:55:47 -07:00
parent af2ca7e034
commit 6bd7e10c4d
31 changed files with 34771 additions and 1 deletions
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67
src/Corrosion/lib/css.js Normal file
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const csstree = require('css-tree');
class CSSRewriter {
constructor(ctx) {
this.ctx = ctx;
};
process(source, config = {}) {
const ast = csstree.parse(source, {
context: config.context || 'stylesheet',
parseCustomProperty: true,
});
const urls = csstree.findAll(ast, node =>
node.type == 'Url'
);
const imports = csstree.findAll(ast, node =>
node.type == 'Atrule' && node.name == 'import' && node.prelude && node.prelude.type == 'AtrulePrelude' && node.prelude.children.head.data.type == 'String'
);
urls.forEach(({ value }) => {
switch(value.type) {
case 'String':
const quote = value.value.substring(0, 1);
value.value = quote + this.ctx.url.wrap(value.value.slice(1).slice(0, -1), config) + quote;
break;
case 'Raw':
value.value = this.ctx.url.wrap(value.value, config);
break;
};
});
imports.forEach(({ prelude }) => {
const { data } = prelude.children.head;
const quote = data.value.substring(0, 1);
data.value = quote + this.ctx.url.wrap(data.value.slice(1).slice(0, -1), config) + quote;
});
return csstree.generate(ast);
};
source(processed, config = {}) {
const ast = csstree.parse(processed, {
context: config.context || 'stylesheet',
parseCustomProperty: true,
});
const urls = csstree.findAll(ast, node =>
node.type == 'Url'
);
const imports = csstree.findAll(ast, node =>
node.type == 'Atrule' && node.name == 'import' && node.prelude && node.prelude.type == 'AtrulePrelude' && node.prelude.children.head.data.type == 'String'
);
urls.forEach(({ value }) => {
switch(value.type) {
case 'String':
const quote = value.value.substring(0, 1);
value.value = quote + this.ctx.url.unwrap(value.value.slice(1).slice(0, -1), config) + quote;
break;
case 'Raw':
value.value = this.ctx.url.unwrap(value.value, config);
break;
};
});
imports.forEach(({ prelude }) => {
const { data } = prelude.children.head;
const quote = data.value.substring(0, 1);
data.value = quote + this.ctx.url.unwrap(data.value.slice(1).slice(0, -1), config) + quote;
});
return csstree.generate(ast);
};
};
module.exports = CSSRewriter;