In a nutshell, I need to work out how to return the last matching pattern from an awk //,// search. I can bring back the first, but am unsure how to obtain the last, and a simple tail won't work as the match could be over multiple lines.
Secondly I would like some way of pattern matching, a... (10 Replies)
Dear Team,
How do we match two patterns on the same line using awk?Are there any logical operators which i could use in awk like awk '\gokul && chennai\' <filename>
Eg:
Input file:
gokul,10/11/1986,coimbatore.
gokul,10/11/1986,bangalore.
gokul,12/04/2008,chennai.... (2 Replies)
Hi,
How can I tell awk to print all lines/columns if column number 5 contains the word Monday?
I have tried
nawk -F, '$5==Monday' OFS=, myfile > outputfile
but that doesn't work (I am a newb!!)
Thanks, (7 Replies)
Hello all,
I am trying to sort thru a database and print all the customers whose first names are only four characters. I just want to pull the first name only from the database.
the database records appear like this in file:
Mike Harrington:(510) 548-1278:250:100:175; first is name Mike... (4 Replies)
Hello ,
I have comma delimited file with over 20 fileds that i need to do some validations on. I have to check if certain fields are null and then write the line containing the null field into a new file and then delete the line from the current file.
Can someone tell me how i could go... (2 Replies)
can somebody provide me with some ksh code that will return true if my the contents in my variable match anyone of these strings ORA|ERROR|SP2
variable="Error:ORA-01017: Invalid username/password; logon denied\nSP2-0640:Not connected"
I tried this and it does not seem to work for me
... (3 Replies)
Hi I am trying to find a pattern match with column one containing 3 numbers.
input file tmp.lst
abcd456|1|23123|123123|23423
kumadff|a|dadfadf|adfd|adfadfadf
xxxd999|d|adfdfs|adfadf|adfdasfadf
admin|a|dafdf|adfadfa|||
output file tmp4.lst
abcd456|1|23123|123123|23423... (3 Replies)
I have two files, want to compare file1 data with file2 second column and print line which are not matching. Need help in matching the pattern, file2 second column number can be leading 0 or 00 or 000.
Example:
file1
1
2
3
file2
a,0001
b,02
c,000
d,01
e,2
f,0005
Expected output:... (20 Replies)
Hi,
I have input file whose first column needs(match.txt) to be matched with the first column of the input file with min & max length as defined in match.txt. But conditions are not matching. Please help on the changes in the code below as for multiple enteries in match.txt complete match.txt will... (3 Replies)
Hi
I need to do a patten match between files .
I am new to shell scripting and have come up with this so far. It take 50 seconds to process files of 2mb size . I need to tune this code as file size will be around 50mb and need to save time.
Main issue is that I need to search the pattern from... (2 Replies)
Discussion started by: nitin_daharwal
2 Replies
LEARN ABOUT SUSE
xml::libxml::pattern
XML::LibXML::Pattern(3) User Contributed Perl Documentation XML::LibXML::Pattern(3)NAME
XML::LibXML::Pattern - XML::LibXML::Pattern - interface to libxml2 XPath patterns
SYNOPSIS
use XML::LibXML;
my $pattern = new XML::LibXML::Pattern('/x:html/x:body//x:div', { 'x' => 'http://www.w3.org/1999/xhtml' });
# test a match on a XML::LibXML::Node $node
if ($pattern->matchesNode($node)) { ... }
# or on a XML::LibXML::Reader
if ($reader->matchesPattern($pattern)) { ... }
# or skip reading all nodes that do not match
print $reader->nodePath while $reader->nextPatternMatch($pattern);
$pattern = XML::LibXML::Pattern->new( pattern, { prefix => namespace_URI, ... } );
$bool = $pattern->matchesNode($node);
DESCRIPTION
This is a perl interface to libxml2's pattern matching support http://xmlsoft.org/html/libxml-pattern.html. This feature requires recent
versions of libxml2.
Patterns are a small subset of XPath language, which is limitted to (disjunctions of) location paths involving the child and descendant
axes in abbreviated form as described by the extended BNF given below:
Selector ::= Path ( '|' Path )*
Path ::= ('.//' | '//' | '/' )? Step ( '/' Step )*
Step ::= '.' | NameTest
NameTest ::= QName | '*' | NCName ':' '*'
For readability, whitespace may be used in selector XPath expressions even though not explicitly allowed by the grammar: whitespace may be
freely added within patterns before or after any token, where
token ::= '.' | '/' | '//' | '|' | NameTest
Note that no predicates or attribute tests are allowed.
Patterns are particularly useful for stream parsing provided via the "XML::LibXML::Reader" interface.
new()
$pattern = XML::LibXML::Pattern->new( pattern, { prefix => namespace_URI, ... } );
The constructor of a pattern takes a pattern expression (as described by the BNF grammar above) and an optional HASH reference mapping
prefixes to namespace URIs. The method returns a compiled pattern object.
Note that if the document has a default namespace, it must still be given an prefix in order to be matched (as demanded by the XPath
1.0 specification). For example, to match an element "<a xmlns="http://foo.bar"</a>", one should use a pattern like this:
$pattern = XML::LibXML::Pattern->new( 'foo:a', { foo => 'http://foo.bar' });
matchesNode($node)
$bool = $pattern->matchesNode($node);
Given a XML::LibXML::Node object, returns a true value if the node is matched by the compiled pattern expression.
SEE ALSO
XML::LibXML::Reader for other methods involving compiled patterns.
AUTHORS
Matt Sergeant, Christian Glahn, Petr Pajas
VERSION
1.70
COPYRIGHT
2001-2007, AxKit.com Ltd.
2002-2006, Christian Glahn.
2006-2009, Petr Pajas.
perl v5.12.1 2009-10-07 XML::LibXML::Pattern(3)