bugGNU Wget - Bugs: bug #26922, Allow addition of arbitrary...


bug #26922: Allow addition of arbitrary tags/attributes to be processed.

Submitted by:  Micah Cowan <micahcowan>
Submitted on:  Tue 30 Jun 2009 06:57:13 PM UTC  
Category:  Feature Request Severity:  3 - Normal
Priority:  5 - Normal Status:  Confirmed
Privacy:  Public Assigned to:  None
Originator Name:  Open/Closed:  Open
Release:  None Operating System:  None
Reproducibility:  None Fixed Release:  None
Planned Release:  1.15 Regression:  None
Work Required:  1 - Days Patch Included:  None

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Mon 06 Jul 2009 04:13:25 AM UTC, comment #1:

XPath-style specifications would also provide fine-grained control, such that links could be parsed from <link/> tags based on the value of the "rel" attribute, etc.

Micah Cowan <micahcowan>
Tue 30 Jun 2009 06:57:13 PM UTC, original submission:

HTML 5 is approaching, for better or worse, which means a new slew of tags/attributes to parse for URIs.

OTOH, this also highlights a bit of future-proofing that Wget lacks. Users of existing Wget releases will need to upgrade just to get support for new tags. Also, if a page uses "custom" tags that a user might want to parse, there's no real way to specify that, currently.

Would be nice to extend the --folow-tags/--ignore-tags feature to accept lists of arbitrary tag/attr-list specifications, and not just tags that Wget already knows about. For instance, if a new "foo" element takes src uref attributes, both of which may contain URIs, then we could specify --follow-tags="<default>,foo:src|uref", where "<default>" means the ones Wget already knows about.

There might be some value in using an XPath-compatible syntax to specify tags/attributes. This feature would also potentially open Wget up to parse links from non-HTML XML files as well (RSS and the like?), if combined with a feature that told Wget to parse non-html content-types.

Micah Cowan <micahcowan>


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