xterm-390

[Bruce Dubbs]

New version. This can go in 12.1

[Bruce Dubbs]

Patch 390 - 2024/02/19

• improve typography of control-sequences page
• amend UPSS change from patch 389, fixing a regression in VT100/VT220 character sets.
• modify ANSI conformance per ECMA-43 and DEC 070:
  • set ANSI conformance level to 3 for DEC levels 2 and up.
  • disable locking shifts in level 1, e.g., VT100.
  • disable single-shifts from G2/G3 in level 1.
  • use UPSS for G2/G3 in levels 2 and up.
• modify invisible-character attribute to permit DECRQCRA to report a consistent checksum
• align terminfo building blocks in terminfo to correspond to recent refactoring/trimming in ncurses.
• set flag in regexec call for onNClicks to handle “^{” anchor}
• add line-drawing data for the characters in DEC Technical which have no Unicode equivalents.
• remove a special case in encode_scs which made xterm report Latin-1 when encoding is set to UTF-8, where ASCII is the selected character set. This fixes a regression in vttest for the DECRSPS cursor test.
• correct values for Ps of DECAUPSS in ctlseqs.ms
• simplify/correct expression for checking Unicode non-characters
• correct loop for trimming environment variables
• fixes for manpage formatting
• update config.guess, config.sub

[Bruce Dubbs]

Fixed at commit 789066502f.