BBS:      TELESC.NET.BR
Assunto:  src/conio/cterm.adoc cterm.c src/syncterm/termtest.c
De:       Deuc¨
Data:     Wed, 18 Mar 2026 16:58:48 -0700
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https://gitlab.synchro.net/main/sbbs/-/commit/80b5ad1b89408202579c4fc8
Modified Files:
	src/conio/cterm.adoc cterm.c src/syncterm/termtest.c
Log Message:
Implement DEC rectangular area operations and column editing

New sequences:
  DECERA (CSI Pt;Pl;Pb;Pr $ z)  erase rectangular area
  DECFRA (CSI Pch;Pt;Pl;Pb;Pr $ x)  fill rectangular area
  DECCRA (CSI ...params... $ v)  copy rectangular area
  DECIC (CSI Pn ' })  insert column(s) within scrolling margins
  DECDC (CSI Pn ' ~)  delete column(s) within scrolling margins

All operations use current SGR attributes for new/erased cells and
clear hyperlink_id.  Coordinates respect DECOM (origin mode) but are
not affected by margins (except DECIC/DECDC which operate within
margins only).  Cursor does not move.  DECFRA accepts any character
except C0 (0x00-0x1F) and DEL (0x7F).

cterm.adoc:
  Document all five new sequences.  Fix sort order of entire CSI
  section  entries now correctly ordered by (final byte, intermediate
  byte, private prefix) in ASCII order, fixing 19 pre-existing
  ordering errors.

Tests: 149 -> 154 (DECERA, DECFRA, DECCRA, DECIC, DECDC), all passing.

Co-Authored-By: Claude Opus 4.6 (1M context) 
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