package.dist.cjs.styled-system.css-var.cjs Maven / Gradle / Ivy

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Responsive and accessible React UI components built with React and Emotion

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"use strict";
'use strict';

const escRegex = /[^a-zA-Z0-9_\u0081-\uffff-]/g;
function esc(string) {
  return `${string}`.replace(escRegex, (s) => `\\${s}`);
}
const dashCaseRegex = /[A-Z]/g;
function dashCase(string) {
  return string.replace(dashCaseRegex, (match) => `-${match.toLowerCase()}`);
}
function cssVar(name, options = {}) {
  const { fallback = "", prefix = "" } = options;
  const variable = dashCase(["-", prefix, esc(name)].filter(Boolean).join("-"));
  return {
    var: variable,
    ref: `var(${variable}${fallback ? `, ${fallback}` : ""})`
  };
}

exports.cssVar = cssVar;