Created
October 4, 2020 21:06
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| const add = (list) => (rule) => list.push(rule) && ""; | |
| const cssBlock = /([^}{;]*){([^}{]+)}/; | |
| function parse(css) { | |
| let blocks = []; | |
| let current; | |
| while(current = css.match(cssBlock)){ | |
| const [fragment,selector,content] = current; | |
| const [spaces] = selector.match(/^ */); | |
| const { index: start } = current; | |
| const { length } = fragment; | |
| const end = fragment.length+start; | |
| const children = []; | |
| const block = {selector:selector.trim(),content:content.trim(),start:start+spaces.length,end,children}; | |
| blocks = blocks.reduce((blocks,b)=>{ | |
| (block.start < b.start && b.end < block.end ? children : blocks).push(b); | |
| return blocks; | |
| },[]) | |
| block.children = children; | |
| blocks.push(block) | |
| css = css.slice(0,start)+" ".repeat(length)+css.slice(end); | |
| } | |
| return blocks; | |
| } |
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