SYNTAX

for the source file

refer to src.txt for the syntax.

for the live manipulation

the available commands are:

insert <new node's name>

node name should not contain any space

define <variable name> as <var value>

any space in variable's name or value will be ignored

enter <nodename >

the node must be a descendent of the current node.

undefine

undefine a variable

remove

remove a node and all its descendants

printself

prints the tree from the current node

save

save all the changes to the file

X

terminate the program

How to run

execute driver.java, passing the tree source file as a command line argument. If the tree source file is not specified, it defaults to src.txt.