Hi, guys. I have one question:
I need to search for a string in a file, and then extract another string from the file and assign it to a variable.
For example:
the contents of the file (group) is below:
...
ftp:x:23:
mail:x:34
...
testing:x:2001
sales:x:2002
development:x:2003
...... (6 Replies)
Hi,
There's an xml file produced from a front-end tool as shown below:
<INPUT DATABASE ="ORACLE" DBNAME ="UNIX" NAME ="FACT_TABLE" OWNERNAME ="DIPS">
<INPUTFIELD DATATYPE ="double" DEFAULTVALUE ="" DESCRIPTION ="" NAME ="STORE_KEY" PICTURETEXT ="" PORTTYPE ="INPUT" PRECISION ="15" SCALE... (6 Replies)
Hi,
I wish to grep for the first instance of <listen-address> value between the first <server></server> tag in an xml file.
Sample xml:
.........
<timeout-seconds>1500</timeout-seconds>
</jta>
<server>
<name>Adminserver_DEV</name>
... (9 Replies)
i need to extract the string between two tags,
input file is
<PersonInfoShipTo AddressID="446311709" AddressLine1="" AddressLine2="" AddressLine3="" AddressLine4="" AddressLine5="" AddressLine6="" AlternateEmailID="" Beeper="" City="" Company="" Country="" DayFaxNo="" DayPhone="" Department=""... (5 Replies)
Need Assistance in shell programming... I have a huge file which has multiple stations and i wanted to search particular station and extract few lines from it and the rest is not needed
Bold letters are the stations . The whole file has multiple stations .
Below example i wanted to search... (4 Replies)
Hello All,
I have an input sample data like below (In actual I have many columns and few million rows).
Column1,Column2
4,2
1,5
Hello,4
1,4
Hello,2
3,5
Hello,8
4,5
Need the output (using awk and/or sed preferably) like below. Here I need all the lines between 2 matching... (1 Reply)
Hi everyone,
So i'm struggling with an xml (log file) where we get information about some devices, so the logfile is filled with multiple "blocks" like that.
Based on the <devId> i want to extract this part of the xml file. If possible I want it to have an script for this, cause we'll use... (5 Replies)
Discussion started by: Pouky
5 Replies
LEARN ABOUT DEBIAN
tree::simple::visitor::preordertraversal
Tree::Simple::Visitor::PreOrderTraversal(3pm) User Contributed Perl Documentation Tree::Simple::Visitor::PreOrderTraversal(3pm)NAME
Tree::Simple::Visitor::PreOrderTraversal - A Visitor for pre-order traversal a Tree::Simple hierarchy
SYNOPSIS
use Tree::Simple::Visitor::PreOrderTraversal;
# create an visitor
my $visitor = Tree::Simple::Visitor::PreOrderTraversal->new();
# pass our visitor to the tree
$tree->accept($visitor);
# print our results
print join ", " => $visitor->getResults();
# this will print this:
# 1 1.1 1.1.1 1.2 2 2.1 3 3.1
# assuming your tree is like this:
# 1
# 1.1
# 1.1.1
# 1.2
# 2
# 2.1
# 3
# 3.1
DESCRIPTION
Pre-order traversal is a depth-first traversal method in which the sub-tree's are processed after the parent. It is essentially a wrapper
around the base Tree::Simple::Visitor class, and is a separate module here for completeness. (If you have a post-order, you should have a
pre-order too).
METHODS
new There are no arguments to the constructor the object will be in its default state. You can use the "setNodeFilter" method to customize
its behavior.
includeTrunk ($boolean)
Based upon the value of $boolean, this will tell the visitor to include the trunk of the tree in the traversal as well.
setNodeFilter ($filter_function)
This method accepts a CODE reference as its $filter_function argument and throws an exception if it is not a code reference. This code
reference is used to filter the tree nodes as they are collected. This can be used to customize output, or to gather specific
information from a more complex tree node. The filter function should accept a single argument, which is the current Tree::Simple
object.
visit ($tree)
This is the method that is used by Tree::Simple's "accept" method. It can also be used on its own, it requires the $tree argument to be
a Tree::Simple object (or derived from a Tree::Simple object), and will throw and exception otherwise.
getResults
This method returns the accumulated results of the application of the node filter to the tree.
BUGS
None that I am aware of. Of course, if you find a bug, let me know, and I will be sure to fix it.
CODE COVERAGE
See the CODE COVERAGE section in Tree::Simple::VisitorFactory for more inforamtion.
SEE ALSO
These Visitor classes are all subclasses of Tree::Simple::Visitor, which can be found in the Tree::Simple module, you should refer to that
module for more information.
AUTHOR
stevan little, <stevan@iinteractive.com>
COPYRIGHT AND LICENSE
Copyright 2004, 2005 by Infinity Interactive, Inc.
<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.10.1 2010-02-18 Tree::Simple::Visitor::PreOrderTraversal(3pm)