Enjoy 3.2 release ^_^

src/main/java/com/jfinal/template/ext/directive/StringDirective.java

@@ -0,0 +1,97 @@
+/**
+ * Copyright (c) 2011-2017, James Zhan 詹波 (jfinal@126.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jfinal.template.ext.directive;
+
+import java.io.Writer;
+import com.jfinal.template.Directive;
+import com.jfinal.template.Env;
+import com.jfinal.template.FastStringWriter;
+import com.jfinal.template.expr.ast.Const;
+import com.jfinal.template.expr.ast.Expr;
+import com.jfinal.template.expr.ast.ExprList;
+import com.jfinal.template.expr.ast.Id;
+import com.jfinal.template.stat.ParseException;
+import com.jfinal.template.stat.Scope;
+
+/**
+ * #string 指令方便定义大量的多行文本变量，这个是 java 语言中极为需要的功能
+ * 
+ * 定义：
+ * #string(name)
+ *    在此是大量的字符串
+ * #end
+ * 
+ * 使用：
+ * #(name)
+ */
+public class StringDirective extends Directive {
+	
+	private String name;
+	private boolean isLocalAssignment = false;
+	
+	public void setExprList(ExprList exprList) {
+		Expr[] exprArray = exprList.getExprArray();
+		if (exprArray.length == 0) {
+			throw new ParseException("#string directive parameter cant not be null", location);
+		}
+		if (exprArray.length > 2) {
+			throw new ParseException("wrong number of #string directive parameter, two parameters allowed at most", location);
+		}
+		
+		if (!(exprArray[0] instanceof Id)) {
+			throw new ParseException("#string first parameter must be identifier", location);
+		}
+		this.name = ((Id)exprArray[0]).getId();
+		if (exprArray.length == 2) {
+			if (exprArray[1] instanceof Const) {
+				if (((Const)exprArray[1]).isBoolean()) {
+					this.isLocalAssignment = ((Const)exprArray[1]).getBoolean();
+				} else {
+					throw new ParseException("#string sencond parameter must be boolean", location);
+				}
+			}
+		}
+	}
+	
+	public void exec(Env env, Scope scope, Writer writer) {
+		FastStringWriter fsw = new FastStringWriter();
+		stat.exec(env, scope, fsw);
+		
+		if (this.isLocalAssignment) {
+			scope.setLocal(name, fsw.toString());
+		} else {
+			scope.set(name, fsw.toString());
+		}
+	}
+	
+	/**
+	 * hasEnd() 方法返回 true 时，表示该指令拥有指令体以及 #end 结束块
+	 * 模板引擎在解析时会将 "指令体" 赋值到 stat 属性中，在 exec(...) 方法中
+	 * 可通过 stat.exec(...) 执行 "指令体" 内部的所有指令
+	 */
+	public boolean hasEnd() {
+		return true;
+	}
+}
+
+
+
+
+
+
+
+