Add more information about terminfo (Thomas Dickey)

diff --git a/magic/Magdir/terminfo b/magic/Magdir/terminfo
index 064b1d6b6a0320f52c6be87581322e338b54d49f..43e9d43179ebbeb43461e076c0739f5a7e3243da 100644 (file)
--- a/magic/Magdir/terminfo
+++ b/magic/Magdir/terminfo
@@ -1,14 +1,12 @@
 
 #------------------------------------------------------------------------------
-# $File: terminfo,v 1.8 2017/03/17 21:35:28 christos Exp $
+# $File: terminfo,v 1.9 2017/04/28 16:28:58 christos Exp $
 # terminfo:  file(1) magic for terminfo
 #
-# XXX - byte order for screen images?
-#
-# URL: https://en.wikipedia.org/wiki/Terminfo
-# Reference: ncurses-5.9/ncurses/tinfo/write_entry.c
-# Update: Joerg Jenderek
+# URL: http://invisible-island.net/ncurses/man/term.5.html
+# URL: http://invisible-island.net/ncurses/man/scr_dump.5.html
 #
+# Workaround for Targa image type by Joerg Jenderek
 # GRR: line below too general as it catches also
 # Targa image type 1 with 26 long identification field
 # and HELP.DSK
@@ -20,5 +18,34 @@
 !:mime application/x-terminfo
 # no extension
 #!:ext
-0      short           0433            Curses screen image
-0      short           0434            Curses screen image
+#
+# While the compiled terminfo uses little-endian format irregardless of
+# platform, SystemV screen dumps do not.  They came later, and that detail was
+# overlooked.
+#
+# AIX and HPUX use the SVr4 big-endian format
+# Solaris uses the SVr3 formats (sparc and x86 differ endian-ness)
+0      beshort         0433            SVr2 curses screen image, big-endian
+0      beshort         0434            SVr3 curses screen image, big-endian
+0      beshort         0435            SVr4 curses screen image, big-endian
+#
+0      leshort         0433            SVr2 curses screen image, little-endian
+0      leshort         0434            SVr3 curses screen image, little-endian
+0      leshort         0435            SVr4 curses screen image, little-endian
+#
+# Rather than SVr4, Solaris "xcurses" writes this header:
+0      regex           \^MAX=[0-9]+,[0-9]+$
+>1     regex           \^BEG=[0-9]+,[0-9]+$
+>2     regex           \^SCROLL=[0-9]+,[0-9]+$
+>3     regex           \^VMIN=[0-9]+$
+>4     regex           \^VTIME=[0-9]+$
+>5     regex           \^FLAGS=0x[[:xdigit:]]+$
+>6     regex           \^FG=[0-9],[0-9]+$
+>7     regex           \^BG=[0-9]+,[0-9]+,     Solaris xcurses screen image
+#
+# ncurses5 (and before) did not use a magic number, making screen dumps "data".
+# ncurses6 (2015) uses this format, ignoring byte-order
+0      string  \210\210\210\210ncurses ncurses6 screen image
+#
+# PDCurses added this in 2005
+0      string          PDC\001         PDCurses screen image