It would have been better to show what you had tried so we can see your preferred style/tools etc. That way we would find a solution that you could understand better when you come back to the code in a few years time for any reason.
Do you have a plan for how you would achieve this with processes you already know? We could help adapt them.
In any case, another option (and there will be plenty more:-
This will find any rows with 5 commas, however rows with more commas are also collected because the search for 5 is contained within them.
If you want to find rows with fewer that 4 delimiters, try this variation:-
This will find any rows with four commas and then the -v flag will exclude them, so you get anything less than four reported.
my input file(.txt) has the information like
-------------------------------------
WS=123hi4
wd=WAST,RDP
------------------------------------
i need out like
----------------------------------
"where WS='123hi4' and wd in ('WAST','RDP')" (2 Replies)
Hi,
I am trying to truncate word after comma in a file ONLY if there are already 2 words BEFORE comma. If there is one word or 3 or more words BEFORE comma, then I have to leave the data AS IS. See below for example.
Input File :
John Smith, Manager
Smith, John Frank
J F K... (2 Replies)
without using conventional file searching commands like find etc, is it possible to locate a file if i just know that the file that i'm searching for contains a particular text like "Hello world" or something? (5 Replies)
Hi
Can any one pls tell me how to grep this line
POPULATION,69691,20120509
I want the number 69691 from the above line.
How to grep from the first comma till the next comma.
Thank You.:confused: (8 Replies)
Hi,
I'm dealing with an issue and losing a lot of hours figuring out how i would solve this.
I have an input file which looks like this:
('BLABLA +200-GRS','Serviço ','TarifaçãoServiço','wap.bla.us.0000000121',2985,0,55,' de conversão em escada','Dia','Domingos')
('BLABLA +200-GRR','Serviço... (6 Replies)
Hello there,
I have a comma separated csv , and all the text field is wrapped by double quote. Issue is some text field contain comma as well inside double quote. so it is difficult to process.
Input in the csv file is ,
1,234,"abc,12,gh","GH234TY",34
I need output like below,... (8 Replies)
I,
I have a file and i need to replace comma and blank space with comma and 0.
cat file.txt
a,5
b,1
c,
d,
e,4
I need the output as
cat file.txt
a,5
b,1
c,0
d,0 (4 Replies)
I have a comma delimited file of major codes and descriptions. I want to replace all occurrences of spaces with underscores up to the first comma (only in the first field), but not replace spaces following the comma. For instance I have the following snippet of the file:
EK ED,Elementary and... (7 Replies)
Hi Experts,
Please support
I have below data in file in comma seperated, but 4th column is containing comma in between numbers, bcz of which when i tried to parse the file the column 6th value(5049641141) is being removed from the file and value(222.82) in column 5 becoming value of column6.
... (3 Replies)
can anyone help me!!!! How to I parse the CSV file
file name : abc.csv (csv file) The above file containing data like
abv,sfs,,hju,',',jkk wff,fst,,rgr,',',rgr ere,edf,erg,',',rgr,rgr I have a requirement like i have to extract different field and assign them into different... (4 Replies)
Discussion started by: J.Jena
4 Replies
LEARN ABOUT DEBIAN
tree::simple::visitor::pathtoroot
Tree::Simple::Visitor::PathToRoot(3pm) User Contributed Perl Documentation Tree::Simple::Visitor::PathToRoot(3pm)NAME
Tree::Simple::Visitor::PathToRoot - A Visitor for finding the path back a Tree::Simple object's root
SYNOPSIS
use Tree::Simple::Visitor::PathToRoot;
# create an instance of our visitor
my $visitor = Tree::Simple::Visitor::PathToRoot->new();
# pass the visitor to a Tree::Simple object
$tree->accept($visitor);
# now get the accumulated path as a string
# with the '/' character as the delimiter
print $visitor->getPathAsString("/");
# include the tree's trunk in your
# output as well
$visitor->includeTrunk();
# for more complex node objects, you can specify
# a node filter which will be used to extract the
# information desired from each node
$visitor->setNodeFilter(sub {
my ($t) = @_;
return $t->getNodeValue()->description();
});
# you can also get the path back as an array
my @path = $visitor->getPath();
DESCRIPTION
Given a Tree::Simple object, this Visitor will find the path back to the tree's root node.
METHODS
new There are no arguments to the constructor the object will be in its default state. You can use the "includeTrunk" and "setNodeFilter"
methods to customize its behavior.
includeTrunk ($boolean)
Based upon the value of $boolean, this will tell the visitor to collect the trunk of the tree as well.
setNodeFilter ($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 $tree argument to be
a Tree::Simple object (or derived from a Tree::Simple object), and will throw and exception otherwise.
getPath
This will return the collected path as an array, or in scalar context, as an array reference.
getPathAsString ($delimiter)
This will return the collected path as a string with the path elements joined by a $delimiter. If no $delimiter is specified, the
default (', ') will be used.
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 2005-07-14 Tree::Simple::Visitor::PathToRoot(3pm)