I'm trying to produce a document with several authors, using macros for comma separated lists. My MWE is as follows: %%%%%%%%%%%%%%%%%%%%%% \def\autores{% {Luis David Gómez-Méndez, Ph. D.}, {Adriana del Pilar Pulido-Villamarín, M. Sc.}, {Rubiela Castañeda-Salazar, M. Sc.}, {Juan Carlos Ulloa-Rubiano, Ph. D.}, {Adriana Matiz-Villamil, M. Sc.}% } \def\lastAutor{Fidson Juarismy Vesga-Pérez, Ph. D} \def\autorParaLista#1{#1;\space} \def\listaAutores{\processcommacommand[\autores]\autorParaLista & \lastAutor: autores.} \starttext \listaAutores \stoptext %%%%%%%%%%%%%%%%%%%%%%% So far, no luck trying to extract the last item from a comma separated list. That's the reason I created a "\lastAutor" macro, so I can treat the last one differently. This produces: %%%%%% Luis David Gómez-Méndez, Ph.D.; Adriana del Pilar Pulido-Villamarín, M. Sc.; Rubiela Castañeda-Salazar, M. Sc.; Juan Carlos Ulloa-Rubiano, Ph.D.; Adriana Matiz-Villamil, M. Sc.; & Fidson Juarismy Vesga-Pérez, Ph.D: autores. %%%%%% However, what I'm trying to get is: %%%%%% Luis David Gómez-Méndez, Ph.D.; Adriana del Pilar Pulido-Villamarín, M. Sc.; Rubiela Castañeda-Salazar, M. Sc.; Juan Carlos Ulloa-Rubiano, Ph.D.; Adriana Matiz-Villamil, M. Sc. & Fidson Juarismy Vesga-Pérez, Ph.D: autores. %%%%%% Which is very close to what I need, except the ";" just before the "&". So the question is: is it possible to do this in a more effective or simpler, or better way, and write a macro that outputs something like "Author1; Author2; Author3 & Author4: authors.", given a comma separated list of authors? -- Andrés Conrado Montoya Andi Kú andresconrado@gmail.com http://sesentaycuatro.com http://messier87.com http://chiquitico.org ---------------------------------------- Los fines no justifican los medios, porque la medida verdadera de nuestro carácter está dada por los medios que estamos dispuestos a utilizar, no por los fines que proclamamos. ---------------------------------------- “You develop an instant global consciousness, a people orientation, an intense dissatisfaction with the state of the world, and a compulsion to do something about it. From out there on the moon, international politics look so petty. You want to grab a politician by the scruff of the neck and drag him a quarter of a million miles out and say, ‘Look at that, you son of a bitch.’” — Apollo 14 astronaut Edgar Mitchell