So I can use automatic numbering to generate an initial matching of number to line for each of the chunks, but I need to fiddle a bit around the anomalies and then actually stick the numbers to the lines permanently before concordancing.
We meet this frequently when our keyers have neglected to capture line numbers, and our best solution, though not ideal, is interactive editing with an editor that allows not only automatic numbering, but easy selection of lines to operate on, easy undo if it goes wrong, and easy numbering from arbitrary starting points and with arbitrary increments, e.g. 'replace every <l> in the selected region with <l n="..."> starting at 238 and incrementing by 2 each time.' TextPad (on Windows) does this well (replace <l> with <l n="\i(238,2)">)
If you have some match point in the 'external reference system' on which to key in inserting numbers, a more elaborate scripted solution suggests itself. But you probably don't.
pfs -------------------------------------------------------------------- Paul Schaffner | pfs@umich.edu | http://www-personal.umich.edu/~pfs/ University of Michigan Digital Library Production Service --------------------------------------------------------------------