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Add file to explain SGML linking options, for use by SGML document

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writers.
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Bruce Momjian 2009-01-10 04:40:08 +00:00
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doc/src/sgml/README.links Normal file
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<!-- $PostgreSQL: pgsql/doc/src/sgml/README.links,v 1.1 2009/01/10 04:40:08 momjian Exp $ -->
Linking within SGML documents can be confusing, so here is a summary:
Intra-document Linking
----------------------
<xref>
used to link to a section without supplying text for the link;
text comes from the link target; has no close tag
http://www.oasis-open.org/docbook/documentation/reference/html/xref.html
<link>
allows link text to be supplied, requires </link>
http://www.oasis-open.org/docbook/documentation/reference/html/link.html
linkend=
controls the target of the link/xref
endterm=
allows the text of the link/xref to be taken from a different
link target; endterm in a <link> overrides the supplied text
External Linking
----------------
<ulink>
like <link>, but uses a URL (not a document target); requires
</ulink>; if no text is specified, the URL appears as the link text
http://www.oasis-open.org/docbook/documentation/reference/html/ulink.html
url=
used by <ulink> to specify the URL