sfeed_web.1 - sfeed - RSS and Atom parser
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       sfeed_web.1 (1153B)
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            1 .Dd July 27, 2021
            2 .Dt SFEED_WEB 1
            3 .Os
            4 .Sh NAME
            5 .Nm sfeed_web
            6 .Nd finds URLs to feeds from a HTML webpage
            7 .Sh SYNOPSIS
            8 .Nm
            9 .Op Ar baseurl
           10 .Sh DESCRIPTION
           11 .Nm
           12 reads the HTML data of the webpage from stdin and writes the found URLs to
           13 stdout.
           14 .Pp
           15 Such a link reference in HTML code looks like:
           16 .Bd -literal -offset 4n
           17 <link rel="alternate" href="atom.xml" type="application/atom+xml" />
           18 .Ed
           19 .Sh OPTIONS
           20 .Bl -tag -width 8n
           21 .It Ar baseurl
           22 Optional base URL to use for found feed URLs that are relative.
           23 .El
           24 .Sh OUTPUT FORMAT
           25 url<TAB>content-type<newline>
           26 .Bl -tag -width Ds
           27 .It URL
           28 Found relative or absolute URL.
           29 .Pp
           30 For relative URLs if a <base href="..." /> tag is found it will be used,
           31 otherwise if the
           32 .Ar baseurl
           33 option is specified then that is used, if neither are set then the relative URL
           34 is printed.
           35 .It content-type
           36 Usually application/atom+xml or application/rss+xml.
           37 .El
           38 .Sh EXIT STATUS
           39 .Ex -std
           40 .Sh EXAMPLES
           41 Get URLs from a website:
           42 .Bd -literal -offset 4n
           43 curl -s -L 'https://codemadness.org/' | sfeed_web 'https://codemadness.org/'
           44 .Ed
           45 .Sh SEE ALSO
           46 .Xr sfeed_update 1 ,
           47 .Xr sh 1
           48 .Sh AUTHORS
           49 .An Hiltjo Posthuma Aq Mt hiltjo@codemadness.org