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Regex problem

wild123 · 2008-02-05T18:50:57+00:00

Hi Please tell me a regex to get everything from to in the string $string =" "; thanks in advance

wild123

Hi

Please tell me a regex to get everything from < general_information > to < /genearl_information > in the string $string ="< x > < general_information > < a/ > < b/ > < c/ > < d > < /d > < /genearl_information > < /x >";

thanks in advance

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Comments

kg_brian

Are you parsing XML or just this single statement? There are XML parsers out there for just about every language... not really something that makes sense to write for yourself.

Phanie

was there any work or trials from your end

moonkhanna

Hi

Please tell me a regex to get everything from < general_information > to < /genearl_information > in the string $string ="< x > < general_information > < a/ > < b/ > < c/ > < d > < /d > < /genearl_information > < /x >";

thanks in advance

would suggest you to go with Brian's suggestion however here is what you can use

$string =~ s/\(.*)?\<\/x\>/$1/g;

wild123

would suggest you to go with Brian's suggestion however here is what you can use

$string =~ s/\(.*)?\<\/x\>/$1/g;

This regex will only give everything before < / x > I think.
But I want substring from < general_information > to < /general_information >.

This is not the exact string I want to parse. But a dummy string similar to the actual one.

I am rather going the regex way because that ways things look easier.

Adam Stoller

This regex will only give everything before < / x > I think.
But I want substring from < general_information > to < /general_information >.

This is not the exact string I want to parse. But a dummy string similar to the actual one.

I am rather going the regex way because that ways things look easier.

First, as written, the code wouldn't parse with an XML parser because your begin and end tags are not aligned.

Second, you should probably get a copy of the regex bible
Third, although it might look simpler now, it may not be in the end - however, I believe the following will work:[html]my $string = "";
if ($string =~ m|((.*))|sm){
my ($p1, $p2) = ($1, $2);
print "P1: $p1\nP2: $p2\n";
}
# RESULT:
# P1:
# P2: [/html]

wild123

Third, although it might look simpler now, it may not be in the end

I want to use XML dom. Can you please tell how I can parse the attached DCR to set the value of 'menu_type' tag to 'Continental' , for a start?

Hey I solved the regex problem. Wasnt taking care of the new line character in the DCR.

Adam Stoller

I want to use XML dom. Can you please tell how I can parse the attached DCR to set the value of 'menu_type' tag to 'Continental' , for a start?

I suggest that you try to figure that out by reading the module's documentation and trying to write the code yourself. If you still cannot figure out how to do it - post the code you've written for others to assist you with - but you should put forth a decent effort on your own before asking for help writing the code that you are getting paid for and we are not.

Hey I solved the regex problem. Wasnt taking care of the new line character in the DCR.

Glad to hear it.

Migrateduser

I want to use XML dom. Can you please tell how I can parse the attached DCR to set the value of 'menu_type' tag to 'Continental' , for a start?

Hey I solved the regex problem. Wasnt taking care of the new line character in the DCR.

this is not tested or completed code.. but figured I'd could try to point you in the right direction.. [html]use TeamSite::XMLnode;

my $wfArea = "" # your full workarea OS path to file
my $dcr_path = "" # DCR location within the workarea

open(DCR, "$wfArea/$dcr_path") or die("$! - Cannot open DCR (r)...get help from the teamsite admin for $file");
my $xml = do { local $/; };
close DCR;

my $rootnode = TeamSite::XMLnode->new($xml); #path to XML file in TeamSite
my $original_dcr = $rootnode->get_xml(); # gets all the XML
$logger->debug("\$original_dcr: $original_dcr");

my $doc_node = $rootnode->get_node('general_information.menu.menu_type'); #path in your node XML
my $doc_node_val = $doc_node->value(); #value of that node
$logger->debug("\$doc_node_val: $doc_node_val");

my $repStr = 'somevalue or some XML portion'; #like val -or- just 12345

$doc_node->set_inner_xml(''); #clear out current values, not needed, but if thats all you wanted..
$doc_node->set_inner_xml($repStr); #set new values

my $modified_dcr = $rootnode->get_xml();
$logger->debug("\$modified_dcr: $modified_dcr");

# lets now write back the modified file
open(FILEWRITE, "> $wfArea/$dcr_path") || die " Failed to open $wfArea/$dcr_path for write ($!) n";
print FILEWRITE $modified_dcr;
close FILEWRITE;
[/html]