POSIX regular expressions (BRE/ERE) and the GNU and BSD derivatives are the exception, rather than the norm, in that \ is not special/meta within a character class (bracket) expression.
In (I think all) other regex flavours \ is special in a character class (bracket) expression.
--
Shortcuts like \s are not part of POSIX BRE/ERE, but are supported as an extension in BSD and GNU implementations.
Last edited by Scrutinizer; 01-02-2020 at 10:04 AM..
can anyone tell me why this doesn't work? I've been trying to play with character classes and I seem to be missing something here..!
echo "./comparecdna.summary" | awk '/^compare+]summary$/' # returns nothing
echo "./compare_cdna.summary" | awk '/^compare_+]summary$/' # returns nothing
echo... (5 Replies)
So, I need to find the instances of a certain font and remove it....so far in my testing I am using the find command with regex to find a font I want to pull out. However, I seem to be slightly stuck, and I am sure the beard stroking Unix geniuses here can help me.
My example code:
find... (7 Replies)
Hi,
I find it really strange while writing a simple regex to match and print the matched string,
dibyajyo@fwtest:~ #perl -e '$x = "root@rashmi>"; print "matched string:$1\n" if ($x =~ /(root@rashmi)/);'
matched string:root
dibyajyo@fwtest:~ #perl -e '$x = "root@rashmi>"; print... (1 Reply)
I am having issues escaping special characters in my AWK script as follows:
for id in `cat file`
do
grep $id in file2 | awk '\
BEGIN {var=""} \
{ if ( /stringwith+'|'+'50'chars/ ) {
echo "do this"
} else if ( /anotherString/ ) {
echo "do that"
} else {
... (4 Replies)
Hi all!
I am trying to register a device in an existing device class, but I am
having trouble getting the pointer to an existing class.
I can create a class in a module, get the pointer to it and then use
it to register the device with:
*cl = class_create(THIS_MODULE, className);... (0 Replies)
Hi,
I have following regex condition, however it does not work with different logs having same visible string.I believe it is because of some difference with space character, is it possible to make it work everywhere.
Can someone suggest a better string?
/BIND dn=" uid=/
Thanks. (8 Replies)
I have the two class definition as follows.
class A { public: int a; };
class B : virtual public A{ };
The size of class A is shown as 4, and size of class B is shown as 16. Why is this effect ?. (2 Replies)
Hello,
I want to check whether string has only numeric characters. The following code doesn't work for me
#!/usr/local/bin/bash
if ]]; then
echo "true"
else
echo "False"
fi
# ./yyy '346'
False
# ./yyy 'aaa'
False
I'm searching for solution using character classes, not regex.... (5 Replies)
Hello All,
I am a learner in C++. I was testing my inheritance knowledge with following piece of code.
#include <iostream>
using namespace std;
class base
{
public :
void display()
{
cout << "In base display()" << endl;
}
void display(int k)
{... (2 Replies)
Discussion started by: anand.shah
2 Replies
LEARN ABOUT PHP
phar.setmetadata
PHAR.SETMETADATA(3) 1 PHAR.SETMETADATA(3)Phar::setMetadata - Sets phar archive meta-data
SYNOPSIS
public void Phar::setMetadata (mixed $metadata)
DESCRIPTION
Note
This method requires the php.ini setting phar.readonly to be set to 0 in order to work for Phar objects. Otherwise, a PharException
will be thrown.
Phar.setMetadata(3) should be used to store customized data that describes something about the phar archive as a complete entity. PharFile-
Info.setMetadata(3) should be used for file-specific meta-data. Meta-data can slow down the performance of loading a phar archive if the
data is large.
Some possible uses for meta-data include specifying which file within the archive should be used to bootstrap the archive, or the location
of a file manifest like PEAR's package.xml file. However, any useful data that describes the phar archive may be stored.
PARAMETERS
o $metadata
- Any PHP variable containing information to store that describes the phar archive
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
A Phar.setMetadata(3) example
<?php
// make sure it doesn't exist
@unlink('brandnewphar.phar');
try {
$p = new Phar(dirname(__FILE__) . '/brandnewphar.phar', 0, 'brandnewphar.phar');
$p['file.php'] = '<?php echo "hello"';
$p->setMetadata(array('bootstrap' => 'file.php'));
var_dump($p->getMetadata());
} catch (Exception $e) {
echo 'Could not create and/or modify phar:', $e;
}
?>
The above example will output:
array(1) {
["bootstrap"]=>
string(8) "file.php"
}
SEE ALSO Phar.getMetadata(3), Phar.delMetadata(3), Phar.hasMetadata(3).
PHP Documentation Group PHAR.SETMETADATA(3)