Re: [DOCS] Questionable tag usage

Some general notes to the discussion about <xref> vs. <link> rendering in the new toolchain:

(1) There is a general distinction in the meaning of the two elements: <xref> is an internal link with validation semantic whereas <link> is an external link to any URL. See: http://doccookbook.sourceforge.net/html/en/dbc.markup.xref-vs-link.html

(2) The rendering of <xref> can be customized via its xrefstyle-attribute. It switches numbering, title, page number, ... on or off, see: http://doccookbook.sourceforge.net/html/en/dbc.markup.xref.html#sec.markup.xref.xrefstyle . This feature is available per element usage or as a default behaviour, which is defined in the language file of the xslt process (eg: en.xml).

(3) The option to render the xref-output as described in (2) is available since docbook 4.3. Unfortunately we use docbook 4.2. To overcome this shortage we can use the following - more or less cumbersome - workaround: http://www.sagehill.net/docbookxsl/CustomXrefs.html#RoleNotXrefstyle and http://www.sagehill.net/docbookxsl/CustomGentext.html .

Kind regards, Jürgen Purtz

In:
https://www.postgresql.org/docs/devel/static/runtime-config-file-locations.html

---------------------------------------------------
ident_file (string)
   Specifies the configuration file for Section 20.2, “User Name Maps” user name mapping (customarily called pg_ident.conf). This parameter can only be set at server start.
---------------------------------------------------

"Specifies the configuration file for Section 20.2, “User Name Maps”
user name mapping" looks pretty strange to me because a raw section
name appears. This is due to the corresponding SGML coding:
      <para>        Specifies the configuration file for        <xref linkend="auth-username-maps"> user name mapping        (customarily called <filename>pg_ident.conf</>).        This parameter can only be set at server start.      </para>

Shouldn't we use a link tag instead of the xref tag here? Attached is
a patch to fix this.

Best regards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp