I see, if it is just export you can still use a link with custom exporters for internal and external recipes. eg: [[irec: some recipe label]] might export to \uline{some recipe label} and [[erec:some other recipe]] might export to \uuline{some other recipe}, and you would use the ulem latex package to get those commands. The colors I was referring to were for your benefit in org-mode to make it easy to see which kind of link it is. Another alternative is a macro: #+MACRO: irec \uline{$1} #+MACRO: erec \uuline{$1} #+LATEX_HEADER: \usepackage{ulem} {{{irec(some label)}}} and {{{erec(some other label)}}} This exports to: \uline{some label} and \uuline{some other label} John ----------------------------------- Professor John Kitchin Doherty Hall A207F Department of Chemical Engineering Carnegie Mellon University Pittsburgh, PA 15213 412-268-7803 @johnkitchin http://kitchingroup.cheme.cmu.edu On Wed, Dec 13, 2017 at 10:05 AM, Sharon Kimble wrote: > John Kitchin writes: > > > You could just use regular links for this. You could setup a face > function that changes the color depending on it being internal or external, > or you could make separate links for them. See > > http://kitchingroup.cheme.cmu.edu/blog/2016/11/04/New-link- > features-in-org-9/ for many examples of what kinds of things can be done. > > > > John > > Thanks for replying John. > > I don't think I was quite as explicit as I should've been. I'm exporting > my org-mode documents into latex ones, which are then building a PDF, > which can then be printed in black and white (with no other colours > being allowed), with the ultimate aim of it being professionally printed > as books. > > Hence my need for both, double and single line, underlines. > > But I'm also open to any other way of finding some other way of showing > the different links, but I can only use either black or white colours. > > Thanks > Sharon. > > > > ----------------------------------- > > Professor John Kitchin > > Doherty Hall A207F > > Department of Chemical Engineering > > Carnegie Mellon University > > Pittsburgh, PA 15213 > > 412-268-7803 > > @johnkitchin > > http://kitchingroup.cheme.cmu.edu > > > > On Wed, Dec 13, 2017 at 6:56 AM, Sharon Kimble < > boudiccas@skimble.plus.com> wrote: > > > > For my current series of books that I'm writing in org-mode which is > > being exported to latex, I need to differentiate between recipes in > the > > current working file, and to recipes in an external file. This is in > a > > series of books all containing recipes. So what I'm looking for is > the > > ability to use a single underline for internal, and a double > underline > > for external. I can do a single underline easily in org-mode, but I'm > > having problems with a double underline. > > > > But is it the best method, using single and double underlines? Can > > anyone suggest some other ways of doing it, please? Like, for > instance, > > can I have a reference to a particular section in another file? > > > > Thanks > > Sharon > > -- > > A taste of linux = http://www.sharons.org.uk > > TGmeds = http://www.tgmeds.org.uk > > DrugFacts = https://www.drugfacts.org.uk > > Debian 9.3, fluxbox 1.3.5-2, emacs 25.3.2, org-mode 9.1.4-2 > > > > -- > A taste of linux = http://www.sharons.org.uk > TGmeds = http://www.tgmeds.org.uk > DrugFacts = https://www.drugfacts.org.uk > Debian 9.3, fluxbox 1.3.5-2, emacs 25.3.2, org-mode 9.1.4-2 >