import { postcss } from "https://deno.land/x/fed_dev@0.9.0/deps.ts";
const { Input } = postcss;
Reads the input source map and returns a symbol position in the input source (e.g., in a Sass file that was compiled to CSS before being passed to PostCSS). Optionally takes an end position, exclusive.
root.source.input.origin(1, 1) //=> { file: 'a.css', line: 3, column: 1 }
root.source.input.origin(1, 1, 1, 4)
//=> { file: 'a.css', line: 3, column: 1, endLine: 3, endColumn: 4 }