comparison vendor/gems/rubytree-0.5.2/.svn/text-base/README.svn-base @ 0:513646585e45

* Import Redmine trunk SVN rev 3859
author Chris Cannam
date Fri, 23 Jul 2010 15:52:44 +0100
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8
9 (c) 2006, 2007 Anupam Sengupta
10 http://rubytree.rubyforge.org
11
12 Rubytree is a simple implementation of the generic Tree data structure. This
13 implementation is node-centric, where the individual nodes on the tree are the
14 primary objects and drive the structure.
15
16 == INSTALL:
17
18 Rubytree is an open source project and is hosted at:
19
20 http://rubytree.rubyforge.org
21
22 Rubytree can be downloaded as a Rubygem or as a tar/zip file from:
23
24 http://rubyforge.org/frs/?group_id=1215&release_id=8817
25
26 The file-name is one of:
27
28 rubytree-<VERSION>.gem - The Rubygem
29 rubytree-<VERSION>.tgz - GZipped source files
30 rubytree-<VERSION>.zip - Zipped source files
31
32 Download the appropriate file-type for your system.
33
34 It is recommended to install Rubytree as a Ruby Gem, as this is an easy way to
35 keep the version updated, and keep multiple versions of the library available on
36 your system.
37
38 === Installing the Gem
39
40 To Install the Gem, from a Terminal/CLI command prompt, issue the command:
41
42 gem install rubytree
43
44 This should install the gem file for Rubytree. Note that you may need to be a
45 super-user (root) to successfully install the gem.
46
47 === Installing from the tgz/zip file
48
49 Extract the archive file (tgz or zip) and run the following command from the
50 top-level source directory:
51
52 ruby ./setup.rb
53
54 You may need administrator/super-user privileges to complete the setup using
55 this method.
56
57 == DOCUMENTATION:
58
59 The primary class for this implementation is Tree::TreeNode. See the
60 class documentation for an usage example.
61
62 From a command line/terminal prompt, you can issue the following command to view
63 the text mode ri documentation:
64
65 ri Tree::TreeNode
66
67 Documentation on the web is available at:
68
69 http://rubytree.rubyforge.org/rdoc
70
71 == EXAMPLE:
72
73 The following code-snippet implements this tree structure:
74
75 +------------+
76 | ROOT |
77 +-----+------+
78 +-------------+------------+
79 | |
80 +-------+-------+ +-------+-------+
81 | CHILD 1 | | CHILD 2 |
82 +-------+-------+ +---------------+
83 |
84 |
85 +-------+-------+
86 | GRANDCHILD 1 |
87 +---------------+
88
89 require 'tree'
90
91 myTreeRoot = Tree::TreeNode.new("ROOT", "Root Content")
92
93 myTreeRoot << Tree::TreeNode.new("CHILD1", "Child1 Content") << Tree::TreeNode.new("GRANDCHILD1", "GrandChild1 Content")
94
95 myTreeRoot << Tree::TreeNode.new("CHILD2", "Child2 Content")
96
97 myTreeRoot.printTree
98
99 child1 = myTreeRoot["CHILD1"]
100
101 grandChild1 = myTreeRoot["CHILD1"]["GRANDCHILD1"]
102
103 siblingsOfChild1Array = child1.siblings
104
105 immediateChildrenArray = myTreeRoot.children
106
107 # Process all nodes
108
109 myTreeRoot.each { |node| node.content.reverse }
110
111 myTreeRoot.remove!(child1) # Remove the child
112
113 == LICENSE:
114
115 Rubytree is licensed under BSD license.
116
117 Copyright (c) 2006, 2007 Anupam Sengupta
118
119 All rights reserved.
120
121 Redistribution and use in source and binary forms, with or without modification,
122 are permitted provided that the following conditions are met:
123
124 - Redistributions of source code must retain the above copyright notice, this
125 list of conditions and the following disclaimer.
126
127 - Redistributions in binary form must reproduce the above copyright notice, this
128 list of conditions and the following disclaimer in the documentation and/or
129 other materials provided with the distribution.
130
131 - Neither the name of the organization nor the names of its contributors may
132 be used to endorse or promote products derived from this software without
133 specific prior written permission.
134
135 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
136 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
137 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
138 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
139 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
140 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
141 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
142 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
144 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145
146
147 (Document Revision: $Revision: 1.16 $ by $Author: anupamsg $)