I am looking for Regular Expression search pattern to find data within $<
and >$
.
string pattern = "\b\$<[^>]*>\$";
is not working.
Thanks,
You can make use of a tempered greedy token :
\$<(?:(?!\$<|>\$)[\s\S])*>\$
See demo
This way, you will match only the closest boundaries.
Your regex does not match because you do not allow >
in-between your markers, and you are using \\b
where you most probably do not have a word boundary.
If you do not want to get the delimiters in the output, use capturing group:
\$<((?:(?!\$<|>\$)[\s\S])*)>\$
^ ^
And the result will be in Group 1 .
In C#, you should consider declaring all regex patterns (whenever possible) with the help of a verbatim string literal notation (with @""
) because you won't have to worry about doubling backslashes:
var rx = new Regex(@"\$<(?:(?!\$<|>\$)[\s\S])*>\$");
Or, since there is a singleline flag (and this is preferable):
var rx = new Regex(@"\$<((?:(?!\$<|>\$).)*)>\$", RegexOptions.Singleline | RegexOptions.CultureInvariant);
var res = rx.Match(text).Select(p => p.Groups[1].Value).ToList();
To find this pattern in php you have this REGEX code for find any patten,
/$<(.*?)>$/s
For Example:
$arrayWhichStoreKeyValueArrayOfYourPattern= array();
preg_match_all('/$<(.*?)>$/s',
$yourcontentinwhichyoufind,
$arrayWhichStoreKeyValueArrayOfYourPattern);
for($i=0;$i<count($arrayWhichStoreKeyValueArrayOfYourPattern[0]);$i++)
{
$content=
str_replace(
$arrayWhichStoreKeyValueArrayOfYourPattern[0][$i],
constant($arrayWhichStoreKeyValueArrayOfYourPattern[1][$i]),
$yourcontentinwhichyoufind);
}
using this example you will replace value using same name constant content in this var $yourcontentinwhichyoufind
For example you have string like this which has also same named constant.
**global.php**
//in this file my constant declared.
define("MYNAME","Hiren Raiyani");
define("CONSTANT_VAL","contant value");
**demo.php**
$content="Hello this is $<MYNAME>$ and this is simple demo to replace $<CONSTANT_VAL>$";
$myarr= array();
preg_match_all('/$<(.*?)>$/s', $content, $myarray);
for($i=0;$i<count($myarray[0]);$i++)
{
$content=str_replace(
$myarray[0][$i],
constant($myarray[1][$i]),
$content);
}
I think as i know that's all.
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