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Predicate html_receive/4
Availability::- use_module(library(http/html_write)).
Source[det]html_receive(+Id, :Handler)//
This extended version of html_receive//1 causes Handler to be called to process all messages posted to the channel at the time output is generated. Handler is called as below, where PostedTerms is a list of Module:Term created from calls to html_post//2. Module is the context module of html_post and Term is the unmodified term. Members in PostedTerms are in the order posted and may contain duplicates. 
  phrase(Handler, PostedTerms, HtmlTerms, Rest)

Typically, Handler collects the posted terms, creating a term suitable for html//1 and finally calls html//1.

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Anne Ogborn said (2015-02-27T23:47:19):0 upvotes 0 0 downvotes
Picture of user Anne Ogborn.

unclear if Handler's expected to be

my_handler(Terms, DCGIn, DCGOut) -->

which appears to be what the letter of the docs says

or

my_handler(Terms) -->

which makes more sense.