If you want to move around datas which belong together i recommend `defstruct' which is in both Emacs and XEmacs available! It is a macro of the cl-package so you can use it safely also with GNU Emacs ;-)
See the info-manual of `defstruct' - It#s in the cl-info-manual! defstruct allows you to get and set slots via key-names so there are position independed! Does this help? Klaus On Tue, 26 Apr 2005, [EMAIL PROTECTED] wrote: > I'm writing a moderately complex Emacs package and not being a Lisp > guru I wonder what is the best way to handle data structures in > Elisp. The emphasis is not on efficiency, rather on readability. > > For example, from a function I want to return three values. How should > I do this? > > Using a list? (Value1 Value2 Value3)? > > This has the disadvantage of storing specific values on specific > positions, so the caller must now the first element of the list is > Value1, etc. And what if the return value is changed later and Value2 > is not returned anymore? Then I have to fix every invocation of the > function. > > Or maybe an association list? '((value1 . 3) (value2 . 4) (value3 . 5)) > It's certainly more resistant to code changes, but feels a bit > heavyweight. (Maybe its just me.) > > Or is there an other Lispish way to handle structured data I don't > know about? -- Klaus Berndl mailto: [EMAIL PROTECTED] sd&m AG http://www.sdm.de software design & management Carl-Wery-Str. 42, 81739 Muenchen, Germany Tel +49 89 63812-392, Fax -220 _______________________________________________ Help-gnu-emacs mailing list Help-gnu-emacs@gnu.org http://lists.gnu.org/mailman/listinfo/help-gnu-emacs
