flow like the river

BACK_BACK/node_modules/csso/lib/replace/property/font.js

@@ -0,0 +1,45 @@
+module.exports = function compressFont(node) {
+    var list = node.children;
+
+    list.eachRight(function(node, item) {
+        if (node.type === 'Identifier') {
+            if (node.name === 'bold') {
+                item.data = {
+                    type: 'Number',
+                    loc: node.loc,
+                    value: '700'
+                };
+            } else if (node.name === 'normal') {
+                var prev = item.prev;
+
+                if (prev && prev.data.type === 'Operator' && prev.data.value === '/') {
+                    this.remove(prev);
+                }
+
+                this.remove(item);
+            } else if (node.name === 'medium') {
+                var next = item.next;
+
+                if (!next || next.data.type !== 'Operator') {
+                    this.remove(item);
+                }
+            }
+        }
+    });
+
+    // remove redundant spaces
+    list.each(function(node, item) {
+        if (node.type === 'WhiteSpace') {
+            if (!item.prev || !item.next || item.next.data.type === 'WhiteSpace') {
+                this.remove(item);
+            }
+        }
+    });
+
+    if (list.isEmpty()) {
+        list.insert(list.createItem({
+            type: 'Identifier',
+            name: 'normal'
+        }));
+    }
+};