implemented ^C command

 * acts like exit(3) -- ie. the program is terminated
   immediately but the quit hook (aka SciTECO's atexit()
   handlers) will still run.
 * for "compatibility" with classic TECOs.
   Can also be used as a shorter variant of "-EX$$"
   but working from every macro level.
 * disallowed in interactive mode to avoid typing it
   accidentally.

2 files changed, 13 insertions, 10 deletions

diff --git a/doc/sciteco.1.in b/doc/sciteco.1.in
index 0a96cab..468c060 100644
--- a/doc/sciteco.1.in
+++ b/doc/sciteco.1.in
@@ -69,8 +69,8 @@ macro arguments.
 .
 .LP
 If the munged macro does not request program termination using the
-\fBEX\fP command, \*(ST will automatically switch into its graphical
-\fIinteractive\fP mode.
+\fBEX\fP command or exits using \fB^C\fP, \*(ST will automatically
+switch into its graphical \fIinteractive\fP mode.
 \*(ST may be built with different graphical user interfaces,
 including Curses and GTK+ based ones.
 Eventually when the user terminates interactive mode by calling
diff --git a/doc/sciteco.7.template b/doc/sciteco.7.template
index 71bc501..eab26e5 100644
--- a/doc/sciteco.7.template
+++ b/doc/sciteco.7.template
@@ -523,7 +523,8 @@ pressing \fB^C\fP on the attached console or by explicitly
 sending it.
 If \*(ST is not busy,
 .B ^C
-is self-inserting and might be used as a regular command.
+is self-inserting and might be typed as part of regular commands.
+The \fB^C\fP command itself is disallowed in interactive mode, though.
 T}
 .TE
 .
@@ -1034,13 +1035,15 @@ This is \*(ST's equivalent of
 handlers.
 The hook is not run when some command fails,
 but only when \*(ST exits normally.
-This is the case when a macro specified via
-\fB--eval\fP reaches the end, when a munged
-file calls \fBEX\fP or when \fBEX\fP has been
-called in interactive mode.
-Note however that \fBEX\fP is never executed
-immediately, but only requests program termination
-(so it can still be rubbed out).
+This is the case when control in a macro specified via
+\fB--eval\fP reaches the end, or otherwise returns
+(using \fB^C\fP or by returning from the top-level
+macro via \fB$$\fP).
+Similarily the hook is executed when a munged
+file calls \fB^C\fP or \fBEX\fP has been called before
+the top-level macro returns.
+It is also called after the interactive mode has shut down
+by calling \fBEX$$\fP.
 The \fBquit\fP hook will always run in \fIbatch\fP
 mode (after any user interface has shut down).
 Errors in the hook's execution will not prevent