@thi.ng/hiccup/normalize.js

HTML/SVG/XML serialization of nested data structures, iterables & closures

import { isPlainObject } from "@thi.ng/checks/is-plain-object";
import { isString } from "@thi.ng/checks/is-string";
import { illegalArgs } from "@thi.ng/errors/illegal-arguments";
import { RE_TAG } from "./api.js";
import { mergeEmmetAttribs } from "./attribs.js";
const normalize = (tag) => {
  let name = tag[0];
  let match;
  const hasAttribs = isPlainObject(tag[1]);
  const attribs = hasAttribs ? { ...tag[1] } : {};
  if (!isString(name) || !(match = RE_TAG.exec(name))) {
    illegalArgs(`"${name}" is not a valid tag name`);
  }
  name = match[1];
  mergeEmmetAttribs(attribs, match[2], match[3]);
  if (tag.length > 1) {
    tag = tag.slice(hasAttribs ? 2 : 1).filter((x) => x != null);
    if (tag.length > 0) {
      return [name, attribs, tag];
    }
  }
  return [name, attribs];
};
export {
  normalize
};