flow like the river

VISUALIZACION/node_modules/postcss-normalize-charset/index.js

@@ -0,0 +1,37 @@
+var postcss = require('postcss');
+
+var charset = 'charset';
+
+module.exports = postcss.plugin('postcss-normalize-' + charset, function (opts) {
+    opts = opts || {};
+
+    return function (css) {
+        var charsetRule;
+        var nonAsciiNode;
+        var nonAscii = /[^\x00-\x7F]/;
+
+        css.walk(function (node) {
+            if (node.type === 'atrule' && node.name === charset) {
+                if (!charsetRule) {
+                    charsetRule = node;
+                }
+                node.remove();
+            } else if (!nonAsciiNode && node.parent === css && nonAscii.test(node)) {
+                nonAsciiNode = node;
+            }
+        });
+
+        if (nonAsciiNode) {
+            if (!charsetRule && opts.add !== false) {
+                charsetRule = postcss.atRule({
+                    name: charset,
+                    params: '"utf-8"'
+                });
+            }
+            if (charsetRule) {
+                charsetRule.source = nonAsciiNode.source;
+                css.prepend(charsetRule);
+            }
+        }
+    };
+});