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Issue with a regular expression


Issue with a regular expression

By : user3099986
Date : January 11 2021, 05:14 PM
seems to work fine How can I write a regular expression to return the value of the mesh volume? The file containing this information is printed below. , You could try something like this:
code :
%float_pattern = "[0-9.]+";
float_pattern = "\d+(?:\.\d+)?";
pattern = "Mesh Volume  is (?<MeshVolume>" + float_pattern + ")";

matches = regexp(information, pattern, 'match')
tokens = regexp(information, pattern, 'tokens')
names = regexp(information, pattern, 'names')

if isfield(names, "MeshVolume")
    fprintf("Mesh Volume = %f m^3\n", names.MeshVolume);
else
    fprintf("Failed to find mesh volume.\n");
end


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Regular Expression issue

Regular Expression issue


By : user1623162
Date : March 29 2020, 07:55 AM
will be helpful for those in need I have an issue regarding the use of the following regular expression: , Replace the \. with [.,]
Regular expression issue

Regular expression issue


By : Carlos Javier
Date : March 29 2020, 07:55 AM
should help you out what is regular expression validator for the textbox which doesnot contains character like "< >" as a string input
code :
<[^<]+?>
Regular Expression issue

Regular Expression issue


By : user3048127
Date : March 29 2020, 07:55 AM
it helps some times @diEcho and @Dve are correct, you should learn to use something like the native DOMdocument class rather than using regex. Your code will be easier to read and maintain, and will handle malformed HTML much better.
Here is some sample code which may or may not do what you want:
code :
$contents = '';
$doc = new DOMDocument();
$doc->load($page_url);
$nodes = $doc->getElementsByTagName('div');
foreach ($nodes as $node)
{
   if($node->hasAttributes()){
      $attributes = $element->attributes;
      if(!is_null($attributes)){
         foreach ($attributes as $index=>$attr){
            if($attr->name == 'class' && $attr->value == 'rgz'){
               $contents .= $node->nodeValue;
            }
         }
      }
   } 
}
regular expression issue

regular expression issue


By : Ricardo Maranhão
Date : March 29 2020, 07:55 AM
I hope this helps you . Can you change the single quote to a unicode character /u0027 or use the ASCII \x27 and have it work properly?
See it in action here: http://jsfiddle.net/TezdR/1/
Javascript regular expression issue - run-time error JS5017: Syntax error in regular expression

Javascript regular expression issue - run-time error JS5017: Syntax error in regular expression


By : Julio Azevedo
Date : March 29 2020, 07:55 AM
will be helpful for those in need If you really wanted that first backslash in those expressions, they must be escaped:
code :
$htmlPattern =  [
                    /\\<br>(.*?)/ig,
                    /\\<br\/>(.*?)/ig
                ];
$htmlPattern =  [
                    /<br>(.*?)/ig,
                    /<br\/>(.*?)/ig
                ];
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