// node_modules/ol/css.js
var CLASS_HIDDEN = "ol-hidden";
var CLASS_SELECTABLE = "ol-selectable";
var CLASS_UNSELECTABLE = "ol-unselectable";
var CLASS_UNSUPPORTED = "ol-unsupported";
var CLASS_CONTROL = "ol-control";
var CLASS_COLLAPSED = "ol-collapsed";
var fontRegEx = new RegExp(
  [
    "^\\s*(?=(?:(?:[-a-z]+\\s*){0,2}(italic|oblique))?)",
    "(?=(?:(?:[-a-z]+\\s*){0,2}(small-caps))?)",
    "(?=(?:(?:[-a-z]+\\s*){0,2}(bold(?:er)?|lighter|[1-9]00 ))?)",
    "(?:(?:normal|\\1|\\2|\\3)\\s*){0,3}((?:xx?-)?",
    "(?:small|large)|medium|smaller|larger|[\\.\\d]+(?:\\%|in|[cem]m|ex|p[ctx]))",
    "(?:\\s*\\/\\s*(normal|[\\.\\d]+(?:\\%|in|[cem]m|ex|p[ctx])?))",
    `?\\s*([-,\\"\\'\\sa-z0-9]+?)\\s*$`
  ].join(""),
  "i"
);
var fontRegExMatchIndex = [
  "style",
  "variant",
  "weight",
  "size",
  "lineHeight",
  "family"
];
var fontWeights = {
  normal: 400,
  bold: 700
};
var getFontParameters = function(fontSpec) {
  const match = fontSpec.match(fontRegEx);
  if (!match) {
    return null;
  }
  const style = (
    /** @type {FontParameters} */
    {
      lineHeight: "normal",
      size: "1.2em",
      style: "normal",
      weight: "400",
      variant: "normal"
    }
  );
  for (let i = 0, ii = fontRegExMatchIndex.length; i < ii; ++i) {
    const value = match[i + 1];
    if (value !== void 0) {
      style[fontRegExMatchIndex[i]] = typeof value === "string" ? value.trim() : value;
    }
  }
  if (isNaN(Number(style.weight)) && style.weight in fontWeights) {
    style.weight = fontWeights[style.weight];
  }
  style.families = style.family.split(/,\s?/).map((f) => f.trim().replace(/^['"]|['"]$/g, ""));
  return style;
};

export {
  CLASS_HIDDEN,
  CLASS_SELECTABLE,
  CLASS_UNSELECTABLE,
  CLASS_UNSUPPORTED,
  CLASS_CONTROL,
  CLASS_COLLAPSED,
  fontWeights,
  getFontParameters
};
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