postcss,(plugins): nanocss, postcss-preset-env

1 files changed, 71 insertions, 0 deletions

diff --git a/node_modules/postcss-normalize-display-values/src/index.js b/node_modules/postcss-normalize-display-values/src/index.js
new file mode 100644
index 00000000..7495e578
--- /dev/null
+++ b/node_modules/postcss-normalize-display-values/src/index.js
@@ -0,0 +1,71 @@
+'use strict';
+const valueParser = require('postcss-value-parser');
+const mappings = require('./lib/map.js');
+
+/**
+ * @param {string} value
+ * @return {string}
+ */
+function transform(value) {
+  const { nodes } = valueParser(value);
+
+  if (nodes.length === 1) {
+    return value;
+  }
+
+  const values = nodes
+    .filter((list, index) => index % 2 === 0)
+    .filter((node) => node.type === 'word')
+    .map((n) => n.value.toLowerCase());
+
+  if (values.length === 0) {
+    return value;
+  }
+
+  const match = mappings.get(values.toString());
+
+  if (!match) {
+    return value;
+  }
+
+  return match;
+}
+
+/**
+ * @type {import('postcss').PluginCreator<void>}
+ * @return {import('postcss').Plugin}
+ */
+function pluginCreator() {
+  return {
+    postcssPlugin: 'postcss-normalize-display-values',
+
+    prepare() {
+      const cache = new Map();
+      return {
+        OnceExit(css) {
+          css.walkDecls(/^display$/i, (decl) => {
+            const value = decl.value;
+
+            if (!value) {
+              return;
+            }
+
+            if (cache.has(value)) {
+              decl.value = cache.get(value);
+
+              return;
+            }
+
+            const result = transform(value);
+
+            decl.value = result;
+            cache.set(value, result);
+          });
+        },
+      };
+    },
+  };
+}
+
+pluginCreator.postcss = true;
+module.exports = pluginCreator;