From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nick Dokos Subject: Re: Scheme babel error Date: Tue, 30 Aug 2016 13:16:02 -0400 Message-ID: <871t16mb3h.fsf@alphaville.usersys.redhat.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:42804) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1beme4-0004Yu-C2 for emacs-orgmode@gnu.org; Tue, 30 Aug 2016 13:16:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1beme0-00078h-5A for emacs-orgmode@gnu.org; Tue, 30 Aug 2016 13:16:19 -0400 Received: from [195.159.176.226] (port=45469 helo=blaine.gmane.org) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bemdz-00078E-Un for emacs-orgmode@gnu.org; Tue, 30 Aug 2016 13:16:16 -0400 Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1bemds-00084s-QJ for emacs-orgmode@gnu.org; Tue, 30 Aug 2016 19:16:08 +0200 List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org Sender: "Emacs-orgmode" To: emacs-orgmode@gnu.org Lawrence Bottorff writes: > I'm using Racket with Geiser and I get this error: > > executing Scheme code block... > => #f > org-babel-scheme-execute-with-geiser: Invalid read syntax: "#" > > when in an org-mode file this code > > #+begin_src scheme :exports both :session ch3 > (define (bool-imply2 x y) >   (or (not x) y)) > #+end_src > > is run (C-c-c) > > #+BEGIN_SRC scheme :session ch3 > (bool-imply2 #t #f) > #+END_SRC > > In the Racket "ch3" REPL session (bool-imply2 #t #f) works fine. I discovered this problem when I first > tried a simple export to HTML of the buffer. It seems to not like the second boolean parameter. So > switching the parameters then complains about #t . What might be going on? BTW, does an export try to > "run" all the code blocks, i.e., why did I find this when I was exporting to HTML? > > LB > Aargh - somebody (maybe you?) had run into this a long time ago and I had suggested a possible fix, but with the demise of the gmane site, I cannot find the thread - how do people search the ML nowadays? In any case, there is a basic error in ob-scheme.el, line 176 (at least in the version that I have): ... (setq result (if (or (string= result "#") (string= result "#")) nil (read result))))) ;;;<<<<<<<<<<<<<<<< ... The (read result) is bogus: it tries to use the emacs lisp reader to parse a string that contains a scheme expression. IIRC, I suggested changing it to just result: ... (setq result (if (or (string= result "#") (string= result "#")) nil result)))) ... but I didn't (and still don't) know if that breaks anything else. Plus I'm on a machine that doesn't have geiser so I can't even test the basic "fix", so I hope I've got it right. I'll try to follow up tonight from a machine that has geiser installed. -- Nick