Script to convert OPML file to GNU recutils database
  ====================================================

  Last edited: $Date: 2020/12/31 16:17:44 $

                        Newsboat
                        --------

  The  Newsboat RSS reader  (https://newsboat.org/) is
  an awesome RSS reader.

  It runs in your terminal, so can be  used  inside  a
  Tmux session.

  Newsboat  uses  a  plain  text  file for the user to
  configure his or her list with RSS feeds.

                      GNU Recutils
                      ------------

  The GNU Recutils is a set  of  tools  and  libraries  
  to access human-editable, plain text databases called
  recfiles.

  These  recfiles  can be generated by scripts and are
  not only human-editable but also machine-readable.

                          OPML
                          ----

  OPML ( Outline Processor Markup Language)
  is an XML format for outlines which is used to import
  and export RSS feed lists between different RSS 
  readers.

  Newsboat  can  export  its list of feeds in the OPML
  format, with ``newsboat -e``.

      Simple script to create GNU recutils recfile
      --------------------------------------------

    #!/bin/sh

    echo "%rec: newsfeeds" > feeds.rec
    echo "%mandatory: feed url title" >> feeds.rec
    echo "%sort: title" >> feeds.rec
    echo "%unique: url" >> feeds.rec

    newsboat -e | grep  outline  | sed 's/    <outline type="rss" /\
    /' |  sed "s/xmlUrl=/feed: /" | sed 's/htmlUrl=/\
    url: /' | sed 's/title=/\
    title: /' | sed 's/\/>//' | sed 's/\"//g' >> feeds.rec

    echo "Feeds written to feeds.rec"

  This script reads the output  from  ``newsboat  -e``
  and parses that with sed to create the recfile.

  Here is an example of the output:

    %rec: newsfeeds
    %mandatory: feed url title
    %sort: title
    %unique: url

    feed: https://susam.in/blog/rss.xml
    url: https://susam.in/blog/
    title: Susam's Blog

    feed: http://news.dieweltistgarnichtso.net/notes/index.xml
    url: http://news.dieweltistgarnichtso.net/notes/index.xml
    title: notes

    feed: https://daringfireball.net/feeds/main
    url: https://daringfireball.net/
    title: Daring Fireball

    ....

                       Next steps
                       ----------

  For  me  this  was  a  first  step.  I  can  now add
  categories to the records.

  This way I can manage my feeds better,  and  have  a
  sound set of categories :)

                         Kudos
                         -----

  Kudos to Sergey Matveev for publishing his feeds and
  links    as    a    recfile.    See     his    links
  page: http://www.stargrave.org/Links.html