----------------------
- use to get link text from the title of the target link; has no
- close tag
+ use to get chapter/section # from the title of the target
+ link, or xreflabel if defined at the target; has no close tag
http://www.oasis-open.org/docbook/documentation/reference/html/xref.html
like , but uses a URL (not a document target); requires
- ; if no text is specified, the URL appears as the link text
+ ; if no text is specified, the URL appears as the link
+ text
http://www.oasis-open.org/docbook/documentation/reference/html/ulink.html
url=
o If you want to supply text, use , else
o Do not use text with
so the URL appears in printed output
-o You can supply text at the target location with 'xreflabel'
+o Specific nouns like GUC variables, SQL commands, and contrib modules
+ usually have xreflabels