type         date         name
    ----    ---------------   ------------------------

    file    2023.07.26.1715   CMakeLists.txt
    file    2023.07.26.1715   connexe.c
    file    2023.07.26.1715   connexe.h
    file    2023.07.26.1715   convert.c
    file    2023.07.26.1715   convert.h
    file    2023.10.10.2319   extrema.c
    file    2023.07.26.1715   extrema.h
    file    2023.07.26.1715   iopnm.c
    file    2023.07.26.1715   iopnm.h
    file    2023.07.26.1715   Makefile
    file    2023.09.12.1218   Makefile.orig
    file    2023.07.26.1715   recbuffer.c
    file    2023.07.26.1715   recbuffer.h
    file    2023.07.26.1715   recline.c
    file    2023.07.26.1715   recline.h
    file    2023.07.26.1715   test-edges.c
    file    2023.07.26.1715   test-edges-pnm.c
    file    2023.07.26.1715   test-hyster-pnm.c
    file    2023.07.26.1715   typedefs.h
    file    2023.07.26.1715   zcross.c
    file    2023.07.26.1715   zcross.h