Base UI

node_modules/lightningcss/node/browserslistToTargets.js

@@ -0,0 +1,48 @@
+const BROWSER_MAPPING = {
+  and_chr: 'chrome',
+  and_ff: 'firefox',
+  ie_mob: 'ie',
+  op_mob: 'opera',
+  and_qq: null,
+  and_uc: null,
+  baidu: null,
+  bb: null,
+  kaios: null,
+  op_mini: null,
+};
+
+function browserslistToTargets(browserslist) {
+  let targets = {};
+  for (let browser of browserslist) {
+    let [name, v] = browser.split(' ');
+    if (BROWSER_MAPPING[name] === null) {
+      continue;
+    }
+
+    let version = parseVersion(v);
+    if (version == null) {
+      continue;
+    }
+
+    if (targets[name] == null || version < targets[name]) {
+      targets[name] = version;
+    }
+  }
+
+  return targets;
+}
+
+function parseVersion(version) {
+  let [major, minor = 0, patch = 0] = version
+    .split('-')[0]
+    .split('.')
+    .map(v => parseInt(v, 10));
+
+  if (isNaN(major) || isNaN(minor) || isNaN(patch)) {
+    return null;
+  }
+
+  return (major << 16) | (minor << 8) | patch;
+}
+
+module.exports = browserslistToTargets;