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hxaddid - add IDs to selected elements


hxaddid [ -x ] [--] elem|.class|elem.class [ file-or-URL ]


The hxaddid command copies an HTML or XML file to standard output, while adding element
IDs to the specified elements or classes.

For example, given the input

<p>A paragraph without an ID</p>

the command

hxaddid p

will output

<p id="a-paragraph">A paragraph without an ID</p>

If you specify a class using .class then IDs will only be added to elements that contain
that class. And if you specify an element and a class using elem.class then IDs will only
be added to the specified elements that contain the specified class.

If two elements would naturally generate the same ID, a number is added to the ID name
(starting with 0) to make sure the IDs are unique. IDs are not added to matching elements
that already contain an ID.


The following options are supported:

-x Use XML conventions: empty elements are written with a slash at the end:
<IMG />. Also causes the element to be matched case-sensitively.


The following operands are supported:

elem The name of element to select.

.class The name of class to select.

The name of element that contains class to select.

The name or URL of an HTML or XHTML file.


The following exit values are returned:

0 Successful completion.

> 0 An error occurred in the parsing of one of the HTML or XML files.


To use a proxy to retrieve remote files, set the environment variables http_proxy or
ftp_proxy. E.g., http_proxy="http://localhost:8080/"

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