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Full Discussion: Perl substr or similar help
Top Forums Shell Programming and Scripting Perl substr or similar help Post 303025177 by Neo on Friday 26th of October 2018 03:07:31 AM
Old 10-26-2018
This is not how web developers process the DOM in HTML, especially on the client side.

Should I assume you are processing the value on the server side?

Either way, your post confused me. On the client side , we easily get the value attribute of the input DOM element with Javacript:

Code:
var value = document.getElementsByTagName("input")[0].getAttribute("value");

If on the server side, normally you use PHP or PERL and you get the attribute value when you submit on the browser to the server.

PHP Example:

Code:
$value = $_GET['value'];

or

Code:
$value = $_POST['value']

We web developers do not process HTML files as big strings and use PERL or PHP or any language to extract a value; because this is easily done on both the client or server side with existing built-in methods.

Getting the value of an HTML DOM attribute does not require a script like you have written. Hidden values are normally submitted with HTML forms via the $_POST method.

This means on the server side, you would simple read the value of $_POST['value'] when the DOM element is submitted.
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XML::DOM::Text(3pm)					User Contributed Perl Documentation				       XML::DOM::Text(3pm)

NAME
XML::DOM::Text - A piece of XML text in XML::DOM DESCRIPTION
XML::DOM::Text extends XML::DOM::CharacterData, which extends XML::DOM::Node. The Text interface represents the textual content (termed character data in XML) of an Element or Attr. If there is no markup inside an element's content, the text is contained in a single object implementing the Text interface that is the only child of the element. If there is markup, it is parsed into a list of elements and Text nodes that form the list of children of the element. When a document is first made available via the DOM, there is only one Text node for each block of text. Users may create adjacent Text nodes that represent the contents of a given element without any intervening markup, but should be aware that there is no way to represent the separations between these nodes in XML or HTML, so they will not (in general) persist between DOM editing sessions. The normalize() method on Element merges any such adjacent Text objects into a single node for each block of text; this is recommended before employing operations that depend on a particular document structure, such as navigation with XPointers. METHODS splitText (offset) Breaks this Text node into two Text nodes at the specified offset, keeping both in the tree as siblings. This node then only contains all the content up to the offset point. And a new Text node, which is inserted as the next sibling of this node, contains all the con- tent at and after the offset point. Parameters: offset The offset at which to split, starting from 0. Return Value: The new Text node. DOMExceptions: * INDEX_SIZE_ERR Raised if the specified offset is negative or greater than the number of characters in data. * NO_MODIFICATION_ALLOWED_ERR Raised if this node is readonly. perl v5.8.8 2008-02-03 XML::DOM::Text(3pm)
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