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40
|
1 local Luan = require "luan:Luan.luan"
|
|
|
2 local error = Luan.error
|
|
|
3 local pairs = Luan.pairs or error()
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|
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4 local Io = require "luan:Io.luan"
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5 local Http = require "luan:http/Http.luan"
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6 local Shared = require "site:/lib/Shared.luan"
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7 local head = Shared.head or error()
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8 local header = Shared.header or error()
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9
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10
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11 local content = {
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12 intro = {
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45
|
13 title = [[Introduction]]
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40
|
14 content = function()
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15 %>
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87
|
16 <p><a href="https://beanshell.github.io/">BeanShell</a> is a <a href="https://en.wikipedia.org/wiki/Scripting_language">scripting language</a> based on Java which looks a lot like Java. It is much friendlier for beginners than Java is. If you learn BeanShell then learning Java will be much easier.</p>
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40
|
17 <%
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18 end
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19 }
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45
|
20 access = {
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87
|
21 title = [[Running BeanShell]]
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40
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22 content = function()
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23 %>
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87
|
24 <p><a href="https://beanshell.github.io/download.html">Download bsh-xx.jar</a> and put it in your working directory.</p>
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25
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26 <code block>
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27 ~/beanshell $ ls -F
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88
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28 bsh-2.0b4.jar bsh_console.sh*
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29 ~/beanshell $ cat bsh_console.sh
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87
|
30 #!/bin/bash
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31
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32 export CLASSPATH=bsh-2.0b4.jar
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33 java bsh.Console &
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34 ~/beanshell $
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35 </code>
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36
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88
|
37 <p>Copy my <code>bsh_console.sh</code> into your working directory. A <code>jar</code> file contains compiled Java code. The <code>CLASSPATH</code> tells the <code>java</code> command where to find compiled Java code.</p>
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87
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38
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39 <p>Now you can run BeanShell:</p>
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40
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41 <code block>
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88
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42 ~/beanshell $ ./bsh_console.sh
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87
|
43 ~/beanshell $
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44 </code>
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45
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46 <p>You should see a new window that lets you interact with BeanShell. From now on I will mostly refer interactions in that window.</p>
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47
|
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40
|
48 <%
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49 end
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50 }
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45
|
51 start = {
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52 title = [[Getting Started]]
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41
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53 content = function()
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54 %>
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87
|
55 <p>From the window:</p>
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46
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56
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57 <code block>
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87
|
58 bsh % pwd();
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59 /Users/fschmidt/beanshell
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60 bsh % print("Hello world!");
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61 Hello world!
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62 bsh % print(1+1);
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63 2
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|
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64 bsh %
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46
|
65 </code>
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66
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87
|
67 <p>The BeanShell <code>pwd</code> command is like the Bash <code>pwd</code> command, and the BeanShell <code>print</code> command is somewhat like the Bash <code>echo</code> command. But the syntax is different. BeanShell and Java have syntax like most programming languages. While Bash does <code>command arg1 arg2 arg3</code>, most programming languages do <code>command(arg1,arg2,arg3)</code>. In addition, Java requires a <code>;</code> at the end of a statement (command line).</p>
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46
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68
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87
|
69 <p>Also note that Java has the standard arithmetic operators.</p>
|
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46
|
70
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71 <%
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72 end
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73 }
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74 vars = {
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75 title = [[Variables]]
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76 content = function()
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77 %>
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|
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78
|
|
|
79 <code block>
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87
|
80 bsh % String message = "Hello world!";
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81 bsh % print(message);
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82 Hello world!
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|
83 bsh % int i = 2;
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|
84 bsh % print(i);
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|
|
85 2
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|
86 bsh % print(i+1);
|
|
|
87 3
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|
88 bsh % i = i + 5;
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|
|
89 bsh % print(i);
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|
90 7
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|
|
91 bsh %
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47
|
92 </code>
|
|
|
93
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87
|
94 <p>Variables hold values. In Java (but not BeanShell), variables must be declared with a type. The type <code>String</code> is for text, and <code>int</code> is for integers.</p>
|
|
47
|
95
|
|
87
|
96 <p>The <code>=</code> command assigns a value to a variable.</p>
|
|
47
|
97
|
|
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98 <%
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99 end
|
|
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100 }
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87
|
101 objects = {
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102 title = [[Objects and Strings]]
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49
|
103 content = function()
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|
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104 %>
|
|
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105
|
|
|
106 <code block>
|
|
87
|
107 bsh % print( message.toUpperCase() );
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|
|
108 HELLO WORLD!
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|
|
109 bsh % print( message.length() );
|
|
|
110 12
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|
|
111 bsh % print( message.getClass() );
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|
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112 class java.lang.String
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|
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113 bsh %
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49
|
114 </code>
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|
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115
|
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88
|
116 <p>Java is an object-oriented language which means that it mostly deals with objects. I will explain with real-world examples. To show a dog or a toaster, I would do something like <code>show(dog)</code> or <code>show(toaster)</code>. Showing is something I do to these objects, it is not built into the objects. In contrast, to have a dog run I would do <code>dog.run()</code>, and to have a toaster toast bread I would do <code>toaster.toast(bread)</code>. Running is a function built into dogs, while toasting is built into toasters. Functions that are built into objects are called "member functions".</p>
|
|
49
|
117
|
|
87
|
118 <p>But actually this goes deeper. Dogs are a type of canine and all canines can run. So the ability of dogs to run actually comes from them being canines. In Java, we would call dogs, canines, and toasters "classes", and we would say that dogs are a subclass of canines, and that canines are a superclass of dogs.</p>
|
|
49
|
119
|
|
87
|
120 <p>Back to programming. The class of <code>message</code> (a String) is <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html">java.lang.String</a>. Click that link and see all the things that strings can do. For example, they can <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#toUpperCase--">toUpperCase</a> and <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#length--">length</a>. These functions return values. Strings can also <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--">getClass</a> but this functionality comes from the superclass <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html">java.lang.Object</a>. Objects are the base class of everything. Look again at the top of <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html">java.lang.String</a> and you will see the class hierarchy and see that String is a subclass of Object.</p>
|
|
49
|
121
|
|
|
122 <%
|
|
|
123 end
|
|
|
124 }
|
|
87
|
125 interfaces = {
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|
|
126 title = [[Interfaces and Lists]]
|
|
49
|
127 content = function()
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|
|
128 %>
|
|
|
129
|
|
|
130 <code block>
|
|
87
|
131 bsh % List list = new ArrayList();
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|
|
132 bsh % print( list );
|
|
|
133 []
|
|
|
134 bsh % print( list.size() );
|
|
|
135 0
|
|
|
136 bsh % list.add("a");
|
|
|
137 bsh % print( list );
|
|
|
138 [a]
|
|
|
139 bsh % print( list.size() );
|
|
|
140 1
|
|
|
141 bsh % list.add("b");
|
|
|
142 bsh % list.add("c");
|
|
|
143 bsh % print( list );
|
|
|
144 [a, b, c]
|
|
|
145 bsh % print( list.size() );
|
|
|
146 3
|
|
|
147 bsh % print( list.get(0) );
|
|
|
148 a
|
|
|
149 bsh % print( list.get(1) );
|
|
|
150 b
|
|
|
151 bsh % print( list.getClass() );
|
|
|
152 class java.util.ArrayList
|
|
|
153 bsh %
|
|
49
|
154 </code>
|
|
|
155
|
|
88
|
156 <p><a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html">java.util.ArrayList</a> is a class. To make a new object of a class, we use the <code>new</code> operator. If you look at the top of the ArrayList page, you will see "All Implemented Interfaces:" which includes "List" and clicking that takes you to <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html">java.util.List</a>. List is an interface which you can think of as a purely abstract class. An interface only specifies what an object does, not how. A concrete class like ArrayList specifies how objects do what they do (the implementation) so that the object can actually do these actions. Note that an interface can be implemented/subclassed by multiple classes that implement the interface in different ways. You can see this in <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html">java.util.List</a> under "All Known Implementing Classes:".</p>
|
|
49
|
157
|
|
87
|
158 <p>Note that the first index of a list is 0 not 1. So the last index of a list is <code>list.size() - 1</code>.</p>
|
|
49
|
159
|
|
87
|
160 <p>Java organizes classes into packages. The package of List and ArrayList is <a href="https://docs.oracle.com/javase/8/docs/api/java/util/package-summary.html">java.util</a>. It is full of useful classes. Java has a huge number of standard classes, and I am not going to go over any more classes than needed to convey the core concepts of Java. You can learn the classes you need on your own.</p>
|
|
|
161
|
|
|
162
|
|
41
|
163 <%
|
|
|
164 end
|
|
|
165 }
|
|
88
|
166 boolean = {
|
|
|
167 title = [[Boolean Values and Equality]]
|
|
|
168 content = function()
|
|
|
169 %>
|
|
|
170
|
|
|
171 <code block>
|
|
|
172 bsh % print( 3 > 4 );
|
|
|
173 false
|
|
|
174 bsh % print( 3 >= 4 );
|
|
|
175 false
|
|
|
176 bsh % print( 3 < 4 );
|
|
|
177 true
|
|
|
178 bsh % print( 3 <= 4 );
|
|
|
179 true
|
|
|
180 bsh % print( 3 == 4 );
|
|
|
181 false
|
|
|
182 bsh % print( 3 != 4 );
|
|
|
183 true
|
|
|
184 bsh % print( 3 < 4 && 3 > 4 );
|
|
|
185 false
|
|
|
186 bsh % print( 3 < 4 || 3 > 4 );
|
|
|
187 true
|
|
|
188 bsh % boolean b = 3 < 4;
|
|
|
189 bsh % print(b);
|
|
|
190 true
|
|
|
191 bsh % print( b == true );
|
|
|
192 true
|
|
|
193 bsh %
|
|
|
194 </code>
|
|
|
195
|
|
|
196 <p><code>==</code> checks for equality, <code>!=</code> checks for inequality, <code>&&</code> is for "and", and <code>||</code> is for "or". These are boolean operators that return boolean values, unlike something like <code>+</code> which is an arithmetic operator. <code>boolean</code> is a type than can have the values <code>true</code> or <code>false</code>.</p>
|
|
|
197
|
|
|
198 <code block>
|
|
|
199 bsh % String s1 = new String("hi");
|
|
|
200 bsh % String s2 = new String("hi");
|
|
|
201 bsh % print( s1 == s2 );
|
|
|
202 false
|
|
|
203 bsh % print( s1.equals(s2) );
|
|
|
204 true
|
|
|
205 bsh % String s3 = s1;
|
|
|
206 bsh % print( s1 == s3 );
|
|
|
207 true
|
|
|
208 bsh %
|
|
|
209 </code>
|
|
|
210
|
|
|
211 <p>If you have two objects in the physical world that are identical, then they are not the same object but they are equivalent objects. In Java, <code>object1 == object2</code> checks whether object1 and object2 refer to the same object. Object variables refer to objects, they don't contain the object's value. <code>object1.equals(object2)</code> checks for object equivalence.</p>
|
|
|
212
|
|
|
213 <p>The types <code>int</code> and <code>boolean</code> are primitive types. They are not objects. Primitive type variables contain primitive values, so they don't refer to anything. So in this case, <code>==</code> checks for equal values.</p>
|
|
|
214
|
|
|
215 <%
|
|
|
216 end
|
|
|
217 }
|
|
|
218 file = {
|
|
|
219 title = [[Run File and Comment]]
|
|
|
220 content = function()
|
|
|
221 %>
|
|
|
222
|
|
|
223 <p>Now I will return to the Bash command line.</p>
|
|
|
224
|
|
|
225 <code block>
|
|
|
226 ~/beanshell $ ls -F
|
|
|
227 bsh-2.0b4.jar bsh.sh* bsh_console.sh* code.bsh
|
|
|
228 ~/beanshell $ cat bsh.sh
|
|
|
229 #!/bin/bash
|
|
|
230
|
|
|
231 export CLASSPATH=bsh-2.0b4.jar
|
|
|
232 java bsh.Interpreter $*
|
|
|
233 ~/beanshell $ cat code.bsh
|
|
|
234 /* This is a comment */
|
|
|
235 // This is also a comment
|
|
|
236
|
|
|
237 print("Hi");
|
|
|
238 print("Bye");
|
|
|
239
|
|
|
240 ~/beanshell $ ./bsh.sh code.bsh
|
|
|
241 Hi
|
|
|
242 Bye
|
|
|
243 ~/beanshell $
|
|
|
244 </code>
|
|
|
245
|
|
|
246 <p><code>bsh.sh</code> runs a BeanShell file from the command line. I will keep modifying <code>code.bsh</code> to show my examples.</p>
|
|
|
247
|
|
|
248 <p> In Java, comments are between <code>/*</code> and <code>*/</code> or between <code>//</code> and the end of the line. Comments are ignored.</p>
|
|
|
249 <%
|
|
|
250 end
|
|
|
251 }
|
|
|
252 ifs = {
|
|
|
253 title = [[If Statements]]
|
|
|
254 content = function()
|
|
|
255 %>
|
|
|
256
|
|
|
257 <code block>
|
|
|
258 ~/beanshell $ cat code.bsh
|
|
|
259 int x = 5;
|
|
|
260
|
|
|
261 print("first if");
|
|
|
262 if( x == 5 ) {
|
|
|
263 print("x == 5");
|
|
|
264 }
|
|
|
265
|
|
|
266 print("second if");
|
|
|
267 if( x > 5 ) {
|
|
|
268 print("x > 5");
|
|
|
269 } else {
|
|
|
270 print("x <= 5");
|
|
|
271 }
|
|
|
272
|
|
|
273 print("third if");
|
|
|
274 if( x > 5 ) {
|
|
|
275 print("x > 5");
|
|
|
276 } else if( x < 5 ) {
|
|
|
277 print("x < 5");
|
|
|
278 } else {
|
|
|
279 print("x == 5");
|
|
|
280 }
|
|
|
281
|
|
|
282 ~/beanshell $ ./bsh.sh code.bsh
|
|
|
283 first if
|
|
|
284 x == 5
|
|
|
285 second if
|
|
|
286 x <= 5
|
|
|
287 third if
|
|
|
288 x == 5
|
|
|
289 ~/beanshell $
|
|
|
290 </code>
|
|
|
291
|
|
|
292 <p><code>if</code> statements take a boolean argument.</p>
|
|
|
293
|
|
|
294 <%
|
|
|
295 end
|
|
|
296 }
|
|
|
297 loops = {
|
|
|
298 title = [[Loops]]
|
|
|
299 content = function()
|
|
|
300 %>
|
|
|
301
|
|
|
302 <code block>
|
|
|
303 ~/beanshell $ cat code.bsh
|
|
|
304 ~/beanshell $ cat code.bsh
|
|
|
305 print("first loop");
|
|
|
306 int i = 1;
|
|
|
307 while( i <= 3 ) {
|
|
|
308 print(i);
|
|
|
309 i = i + 1;
|
|
|
310 }
|
|
|
311
|
|
|
312 print("second loop");
|
|
|
313 for( int i = 1; i <= 3; i = i + 1 ) {
|
|
|
314 print(i);
|
|
|
315 }
|
|
|
316
|
|
|
317 List list = new ArrayList();
|
|
|
318 list.add("a");
|
|
|
319 list.add("b");
|
|
|
320 list.add("c");
|
|
|
321
|
|
|
322 print("third loop");
|
|
|
323 for( int i = 0; i < list.size(); i = i + 1 ) {
|
|
|
324 String s = list.get(i);
|
|
|
325 print(s);
|
|
|
326 }
|
|
|
327
|
|
|
328 print("fourth loop");
|
|
|
329 Iterator iter = list.iterator();
|
|
|
330 while( iter.hasNext() ) {
|
|
|
331 String s = iter.next();
|
|
|
332 print(s);
|
|
|
333 }
|
|
|
334
|
|
|
335 print("fifth loop");
|
|
|
336 for( String s : list ) {
|
|
|
337 print(s);
|
|
|
338 }
|
|
|
339
|
|
|
340 ~/beanshell $ ./bsh.sh code.bsh
|
|
|
341 first loop
|
|
|
342 1
|
|
|
343 2
|
|
|
344 3
|
|
|
345 second loop
|
|
|
346 1
|
|
|
347 2
|
|
|
348 3
|
|
|
349 third loop
|
|
|
350 a
|
|
|
351 b
|
|
|
352 c
|
|
|
353 fourth loop
|
|
|
354 a
|
|
|
355 b
|
|
|
356 c
|
|
|
357 fifth loop
|
|
|
358 a
|
|
|
359 b
|
|
|
360 c
|
|
|
361 ~/beanshell $
|
|
|
362 </code>
|
|
|
363
|
|
|
364 <p>The first form of the <code>for</code> loop has three elements: an initialization statement, a loop condition, and a statement that is run after each iteration of the loop. The second form of the <code>for</code> loop iterates through anything that is iterable, returning values in sequence. For the fourth loop, see <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html#iterator--">List.iterator()</a>.</p>
|
|
|
365
|
|
|
366 <%
|
|
|
367 end
|
|
|
368 }
|
|
|
369 blocks = {
|
|
|
370 title = [[Blocks]]
|
|
|
371 content = function()
|
|
|
372 %>
|
|
|
373
|
|
|
374 <code block>
|
|
|
375 ~/beanshell $ cat code.bsh
|
|
|
376 {
|
|
|
377 String s = "ok";
|
|
|
378 print( "first " + s );
|
|
|
379 }
|
|
|
380 print( "second " + s );
|
|
|
381
|
|
|
382 ~/beanshell $ ./bsh.sh code.bsh
|
|
|
383 first ok
|
|
|
384 second void
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385 ~/beanshell $
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386 </code>
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387
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388 <p>Code between the braces <code>{</code> and <code>}</code> is a block. When braces are part of a statement like a <code>for</code> statement, the block extends to include the whole statement. Variables declared inside a block only exist within that block.</p>
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389
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390 <p>In BeanShell an undefined variable is <code>void</code> but in Java you would get a compile error.</p>
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391
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392 <p>Note that besides being an arithmetic operator, <code>+</code> also concatenates strings.</p>
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393 <%
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394 end
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395 }
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396 arrays = {
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397 title = [[Arrays and null]]
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398 content = function()
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399 %>
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400 <code block>
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401 ~/beanshell $ cat code.bsh
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402 String[] array = { "a", "b", "c", "d", "e" };
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403 print( "array = " + Arrays.asList(array) );
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404 print( "length = " + array.length );
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405 print( "array[1] = " + array[1] );
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406 array[1] = "bb";
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407 print( "modified array = " + Arrays.asList(array) );
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408 print("loop");
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409 for( String s : array ) {
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410 print(s);
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411 }
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412
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413 array = new String[3];
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414 print( "new array = " + Arrays.asList(array) );
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415 array[2] = "two";
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416 print( "modified new array = " + Arrays.asList(array) );
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417
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418 ~/beanshell $ ./bsh.sh code.bsh
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419 array = [a, b, c, d, e]
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420 length = 5
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421 array[1] = b
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422 modified array = [a, bb, c, d, e]
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423 loop
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424 a
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425 bb
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426 c
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427 d
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428 e
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429 new array = [null, null, null]
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430 modified new array = [null, null, two]
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431 ~/beanshell $
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432 </code>
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433
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434 <p>Arrays are an anomaly - neither primitive type nor object. Arrays don't do anything that lists can't do. The reason that Java has arrays is because arrays are a fundamental low-level programming concept, and Java is a low-level language.</p>
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435
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436 <p>Arrays are declared with the type that they will hold, and then they can only hold that type. Arrays cannot change size.</p>
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437
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438 <p>Since arrays don't know how become strings, I used <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html#asList-T...-">Arrays.asList()</a> which converts an array into a list so that it can be displayed properly. Note that this is a <code>static</code> function which means that it isn't part of an object, but rather is a general function that is associated with a class.</p>
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439
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440 <p>In the second part of the code, I assign <code>array</code> to a new array of length 3 with no values. Java uses the special value <code>null</code> to mean no value.</p>
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441 <%
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442 end
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443 }
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444 fns = {
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445 title = [[Functions]]
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446 content = function()
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447 %>
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448 <code block>
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449 ~/beanshell $ cat code.bsh
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450 int add(int x,int y) {
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451 return x + y;
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452 }
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453
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454 void addAndShow(int x,int y) {
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455 int sum = x + y;
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456 print( x + " + " + y + " = " + sum );
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457 }
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458
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459 void sayBye() {
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460 print("Bye");
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461 }
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462
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463 print( "add(2,3) = " + add(2,3) );
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464 addAndShow(2,3);
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465 sayBye();
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466
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467 ~/beanshell $ ./bsh.sh code.bsh
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468 add(2,3) = 5
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469 2 + 3 = 5
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470 Bye
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471 ~/beanshell $
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472 </code>
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473
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474 <p>Functions make possible reusable code, and are the core concept of programming. In Java, function definitions start with the return type, then the function name, then the function parameters with types, and then a block that implements the function. A return type of <code>void</code> means nothing is returned.</p>
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475 <%
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476 end
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477 }
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478 impl = {
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479 title = [[Implementing Interfaces]]
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480 content = function()
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481 %>
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482 <code block>
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483 ~/beanshell $ cat code.bsh
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484 Iterator iter = new Iterator() {
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485 int i = 0;
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486 boolean hasNext() {
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487 return i < 10;
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488 }
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489 int next() {
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490 i = i + 1;
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491 return i;
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492 }
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493 };
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494
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495 while( iter.hasNext() ) {
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496 print( iter.next() );
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|
497 }
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498
|
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499 ~/beanshell $ ./bsh.sh code.bsh
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|
500 1
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501 2
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502 3
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503 4
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504 5
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|
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505 6
|
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506 7
|
|
|
507 8
|
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508 9
|
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509 10
|
|
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510 ~/beanshell $
|
|
|
511 </code>
|
|
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512
|
|
|
513 <p>BeanShell doesn't let you implement new classes, you must use Java for that. But BeanShell does let you implement interfaces which is similar to implementing a new class. In this case, I implement <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html">Iterator</a> which defines two member functions which must be implemented. Typically an implementation will include both member functions and member data/variables. The member data describes the state of the object, and the member functions often modify that state. This iterator counts from 1 to 10, and the member variable <code>i</code> keeps track of the current count.</p>
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|
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514
|
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|
515 <p>This example is just to give a taste of object-oriented programming. When you learn Java, you will learn much more about this.</p>
|
|
|
516 <%
|
|
|
517 end
|
|
|
518 }
|
|
|
519 conclusion = {
|
|
|
520 title = [[Conclusion]]
|
|
|
521 content = function()
|
|
|
522 %>
|
|
|
523 <p>The purpose of this tutorial is to introduce basic Java concepts that will make learning Java easier. I avoided details and involved examples.</p>
|
|
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524
|
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|
525 <p>When you are learning Java, I still think BeanShell is a useful tool for experimentation. You can quickly test things in BeanShell that would take longer to test in Java.</p>
|
|
|
526 <%
|
|
|
527 end
|
|
|
528 }
|
|
40
|
529 }
|
|
|
530
|
|
|
531
|
|
|
532 local function show_toc(content)
|
|
|
533 %>
|
|
|
534 <ul>
|
|
|
535 <%
|
|
|
536 for id, info in pairs(content) do
|
|
|
537 %>
|
|
|
538 <li><a id="c_<%=id%>" href="#<%=id%>"><%=info.title%></a></li>
|
|
|
539 <%
|
|
|
540 end
|
|
|
541 %>
|
|
|
542 </ul>
|
|
|
543 <%
|
|
|
544 end
|
|
|
545
|
|
|
546 local function show_content(content,h)
|
|
|
547 for id, info in pairs(content) do
|
|
|
548 %>
|
|
|
549 <div heading>
|
|
|
550 <h<%=h%>><a id="<%=id%>" href="#<%=id%>"><%=info.title%></a></h<%=h%>>
|
|
|
551 <a href="#c_<%=id%>">contents</a>
|
|
|
552 </div>
|
|
|
553 <%
|
|
|
554 info.content()
|
|
|
555 end
|
|
|
556 end
|
|
|
557
|
|
|
558 return function()
|
|
|
559 Io.stdout = Http.response.text_writer()
|
|
|
560 %>
|
|
|
561 <!doctype html>
|
|
|
562 <html>
|
|
|
563 <head>
|
|
|
564 <% head() %>
|
|
87
|
565 <title>Reactionary BeanShell Tutorial</title>
|
|
40
|
566 </head>
|
|
|
567 <body>
|
|
|
568 <% header() %>
|
|
|
569 <div content>
|
|
87
|
570 <h1><a href="beanshell.html">Reactionary BeanShell Tutorial</a></h1>
|
|
40
|
571 <hr>
|
|
|
572 <h2>Contents</h2>
|
|
|
573 <div toc>
|
|
|
574 <% show_toc(content) %>
|
|
|
575 </div>
|
|
|
576 <hr>
|
|
|
577 <% show_content(content,2) %>
|
|
|
578 </div>
|
|
|
579 </body>
|
|
|
580 </html>
|
|
|
581 <%
|
|
|
582 end
|
