info-stnd: Parts of an Xref

 
 8.1 Parts of an Xref
 ====================
 
 Cross-references have two major parts: the first part is called the
 "label"; it is the name that you can use to refer to the cross
 reference, and the second is the "target"; it is the full name of the
 node that the cross-reference points to.
 
    The target is separated from the label by a colon ':'; first the
 label appears, and then the target.  For example, in the sample menu
 cross-reference below, the single colon separates the label from the
 target.
 
      * Foo Label: Foo Target.        More information about Foo.
 
    Note the '.' which ends the name of the target.  The '.' is not part
 of the target; it serves only to let Info know where the target name
 ends.
 
    A shorthand way of specifying references allows two adjacent colons
 to stand for a target name which is the same as the label name:
 
      * Foo Commands::                Commands pertaining to Foo.
 
    In the above example, the name of the target is the same as the name
 of the label, in this case 'Foo Commands'.
 
    You will normally see two types of cross-reference while viewing
 nodes: "menu" references, and "note" references.  Menu references appear
 within a node's menu; they begin with a '*' at the beginning of a line,
 and continue with a label, a target, and a comment which describes what
 the contents of the node pointed to contains.
 
    Note references appear within the body of the node text; they begin
 with '*Note', and continue with a label and a target.
 
    Like 'Next', 'Prev', and 'Up' pointers, cross-references can point to
 any valid node.  They are used to refer you to a place where more
 detailed information can be found on a particular subject.  Here is a
 cross-reference which points to a node within the Texinfo documentation:
 SeeWriting an Xref (texinfo)xref, for more information on creating
 your own texinfo cross references.