I had correctly sorted index in either long xhtml and FO/PDF output generated with xsltproc -> DocBook XSL 1.58.1 -> ...
Symbols, A, C, D, E, F, G, H, I, L, M, N, O, R, S, T, V, Y when I added following three indexterms in the middle of document: <indexterm><primary>frame_step</primary><secondary>Reference, Frame_Step option</secondary></indexterm> <indexterm><primary>STP</primary><secondary>Reference, Frame_Step option</secondary></indexterm> <indexterm><primary>+STP</primary><secondary>Reference, Frame_Step option</secondary></indexterm> then my index reordered itself during rendering to: Symbols, S, A, C, D, E, F, G, H, I, L, M, N, O, R, T, V, Y As you see S jumped to begining but after Symbols. Any idea what could be wrong ? Could it be becouse I used the same content for <escondary> in those options ? Could it be becouse of plus sign in third <primary> ? ABX
