[PATCH v4 1/2] TIOCLINUX.2const: Restructure documentation for TIOCL_SETSEL selection modes

["Günther Noack" <gnoack3000@gmail.com>]

* Indent the documented selection modes into tagged paragraphs.
* Document constants from the header file (tiocl.h) instead of numbers.
* Clarify expansion semantics as suggested by Jared Finder.

Signed-off-by: Günther Noack <gnoack3000@gmail.com>
---
 man/man2const/TIOCLINUX.2const | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/man/man2const/TIOCLINUX.2const b/man/man2const/TIOCLINUX.2const
index c0acdd0ea..f2c8d0720 100644
--- a/man/man2const/TIOCLINUX.2const
+++ b/man/man2const/TIOCLINUX.2const
@@ -65,11 +65,26 @@ are the ending
 column and row.
 (Upper left corner is row=column=1.)
 .I sel_mode
-is 0 for character-by-character selection,
-1 for word-by-word selection,
-or 2 for line-by-line selection.
-The indicated screen characters are highlighted and saved
-in a kernel buffer.
+may be one of the following operations:
+.RS
+.TP
+.B TIOCL_SELCHAR
+Select character-by-character.
+The indicated screen characters are highlighted
+and saved in a kernel buffer.
+.TP
+.B TIOCL_SELWORD
+Select word-by-word,
+expanding the selection outwards to align with word boundaries.
+The indicated screen characters are highlighted
+and saved in a kernel buffer.
+.TP
+.B TIOCL_SELLINE
+Select line-by-line,
+expanding the selection outwards to select full lines.
+The indicated screen characters are highlighted
+and saved in a kernel buffer.
+.RE
 .IP
 Since Linux 6.7, using this subcode requires the
 .B CAP_SYS_ADMIN
-- 
2.49.0