Trim open issues to materialization

doc/manual/souce/language/examples.md

@@ -5,21 +5,19 @@
 ## 基本的な設定スキーマ
 
 ```dcdl
-rec {
-    Host = IPv4Address;
+Host = IPv4Address;
 
-    Port = Int & >= 1 & <= 65535;
-    NarrowedPort = Port & > 443;
+Port = Int & >= 1 & <= 65535;
+NarrowedPort = Port & > 443;
 
-    MyConfig = {
-        host = Host;
-        port = NarrowedPort default 8080;
-        feature_hoge = {
-            enable = Bool default true;
-            fuga = Int default 10;
-        };
+MyConfig = {
+    host = Host;
+    port = NarrowedPort default 8080;
+    feature_hoge = {
+        enable = Bool default true;
+        fuga = Int default 10;
     };
-}
+};
 
 NewConfig = MyConfig & {
     host = "127.0.0.1";
@@ -33,28 +31,20 @@ disabled_config = NewConfig & {
 enabled_config = NewConfig;
 ```
 
-## 関数と文字列生成
+## 関数と制約
 
 ```dcdl
 let
-    maybe_hw = String & /Hello! .*/;
-    part = {
-        greet = String;
-        target = String;
-    };
-    mk_hw = (part: part) =>
-        maybe_hw & "${part.greet}! ${part.target}";
+    Port = Int & >= 1 & <= 65535;
+    add_offset = (base: Port, offset: Int) => base + offset;
 in
-    mk_hw({
-        greet = "Hello";
-        target = "World";
-    })
+    add_offset(8000, 80)
 ```
 
 評価結果:
 
 ```text
-"Hello! World"
+8080
 ```
 
 ## match