The fetch command
You use the fetch command to fetch information about documents from the
web, without changing the display. If the information you
requested doesn't exist, the return code is 5. Currently, only
HTML documents can be fetched!
Template: item/a,stem,url/k,index/k/f,map/k/f,form/k/f
You use item to select the information to fetch. You
use URL to name the document you're interested in, or
leave it off to get information on the document currently displayed in
the window.
You use index, map and form to add
search keys to a URL before fetching it.
index converts the value given to it into an indexed
search. map accepts X Y pairs, and uses
that to query the image that URL designates.
form accepts a string of name value pairs,
and turns them into a query of the form that URL
designates. The value of these keywords is ignored if
URL is not specified. FORM is not
implemented yet.
stem is ignored and the information is returned in
the result string if item is one of:
- body
- Returns the contents of the
<body> section of
the document. Not implemented yet.
- head
- Returns the contents of the
<head> section of
the document. This string will include the text of the string returned
by title. Not implemented yet.
- source
- Returns the HTML source for the current document. This string is
the text of the strings returned by head and body joined by appropriate sectioning directives.
- title
- Returns the title of the selected document.
stem is the name of a stemmed variable to hold the
structured information returned if item is one of:
- document
- This returns all the information associated with a document, which includes everything on this
page, and more.
- images
- This returns all the inlined images in the document as a list of links in the named stem.
- inline
- This returns a the complete information on an inlined image, loading the image over the net as
required. The URL for the image must be provided as the value of the
URL keyword. If used with a URL other than one returned by
the fetch command, the results are not predictable.
- links
- This returns all the anchors in the document as a list of links in the named stem.
- urllist
- This returns all the URLs in the document as a list of links in the named stem. This
list is the union of the lists returned by links and images.
Up to the commands, on to get or back to mui.
Mike W. Meyer