Ken, Thanks for your reply. Is that about what you mean? (defmacro literal? [form] (list 'if `(not (list? ~form)) true false))
Andreas On 09/01/2011, at 8:59 AM, Ken Wesson wrote: > On Sat, Jan 8, 2011 at 6:49 PM, Andreas Kostler > <andreas.koestler.le...@gmail.com> wrote: >> Hello again, >> How do I test for a literal? There are predicates for symbols and >> keywoards etc: >> symbol?, keyword? >> Is there an equivalent for literals...like literal? > > Not at runtime. At macroexpansion time you can use list? and that's > *almost* correct -- literal strings, numbers, vectors, and such will > give false (though, for instance, a literal vector may contain > expressions and other nonliteral contents) and s-expression will give > true. On the other hand, '(1 2 3) will give true as well (but quoted > literal lists are uncommon in Clojure). > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- “There is a strong correlation between being smart and being a nerd, and an even stronger inverse correlation between being a nerd and being popular” (Paul Graham) -- ********************************************************** Andreas Koestler, Software Engineer Leica Geosystems Pty Ltd 270 Gladstone Road, Dutton Park QLD 4102 Main: +61 7 3891 9772 Direct: +61 7 3117 8808 Fax: +61 7 3891 9336 Email: andreas.koest...@leica-geosystems.com ************www.leica-geosystems.com************* when it has to be right, Leica Geosystems Please consider the environment before printing this email. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
