ed: Update man page and TODO - sbase - suckless unix tools
  HTML git clone git://git.suckless.org/sbase
   DIR Log
   DIR Files
   DIR Refs
   DIR README
   DIR LICENSE
       ---
   DIR commit dae48911d223022deb96408a65ed910f82a2ef30
   DIR parent 4bc4a1d030dead3308020db6fdddf4b042a83a7e
  HTML Author: Roberto E. Vargas Caballero <k0ga@shike2.net>
       Date:   Wed, 31 Dec 2025 13:08:52 +0100
       
       ed: Update man page and TODO
       
       Diffstat:
         M TODO                                |       2 ++
         M ed.1                                |      58 +++++++++++++++++++++++++++----
       
       2 files changed, 53 insertions(+), 7 deletions(-)
       ---
   DIR diff --git a/TODO b/TODO
       @@ -30,6 +30,8 @@ ed
        --
        
        * Editing huge files doesn't work well.
       +* Using % in shell escapes of r, e, E, w, W, x and X commands.
       +* Using !! in shell escapes of r, e, E, w, W, x and X commands.
        
        
        printf
   DIR diff --git a/ed.1 b/ed.1
       @@ -176,9 +176,23 @@ As above, but without warning if the current buffer has unsaved changes.
        .It ($)r Ar file
        Read in
        .Ar file
       -and append it to the current buffer, printing the bytes read to standard output.
       +and append it to the current buffer at the addressed line,
       +printing the bytes read to standard output.
        The currently remembered filename isn't changed unless it's empty.
       -An address of 0 reads the file into the start of the buffer.
       +An address of 0 reads the
       +.Ar file
       +into the start of the buffer.
       +.It ($)r Ar !command
       +Execute the
       +.Ar command
       +and append its output in the current buffer at the addressed line.
       +When
       +.Ar command
       +returns a '!' is printed.
       +The currently remembered filename isn't changed.
       +An address of 0 reads the output of
       +.Ar command
       +into the start of the buffer.
        .It (.,.)s/re/replacement/flags
        Substitute re for replacement in lines matching re.
        An & within replacement is replaced with the whole string matched by re.
       @@ -213,17 +227,26 @@ As above, but instead of overwriting the contents of
        the addressed lines are appended to
        .Ar file
        instead.
       +.It (1,$)w Ar !command
       +Write the addressed lines to the standard input of
       +.Ar command .
       +When
       +.Ar command
       +returns a '!' is printed.
       +The dot is unchanged.
        .It (.+1)
        An address without a command prints the addressed line.
        Sets the dot to that line.
       -.It (1,$)x file
       +.It (1,$)x Ar file
        Like the w command
       -but after saving the file
       +but after saving the
       +.Ar file
        it exits with an exit status of 0
        independently of previous errors.
       -.It (1,$)X file
       +.It (1,$)X Ar file
        Like the W command
       -but after saving the file
       +but after saving the
       +.Ar file
        it exits with an exit status of 0
        independently of previous errors.
        .It (+) Ns Ic z Ns Ar n
       @@ -256,6 +279,28 @@ When
        returns a '!' is printed.
        The dot is unchanged.
        .El
       +.Sh ASYNCHRONOUS EVENTS
       +.Bl -tag -width "SIGQUIT"
       +.It Dv SIGHUP
       +If the current buffer has changed since it was last written,
       +.Nm
       +attempts to write the buffer to the file
       +.Pa ed.hup .
       +Nothing is written to the currently remembered file, and
       +.Nm
       +exits.
       +.It Dv SIGINT
       +When an interrupt occurs,
       +.Nm
       +prints
       +.Sq ?\en
       +and returns to command mode.
       +If interrupted during text input,
       +the text already input is written to the current buffer,
       +as if text input had been normally terminated.
       +.It Dv SIGQUIT
       +This signal is ignored.
       +.El
        .Sh SEE ALSO
        .Xr sed 1 ,
        .Xr regexp 3
       @@ -285,7 +330,6 @@ The dot is unchanged.
        .Sh STANDARDS
        POSIX.1-2013.
        Except where noted here:
       -g and v operate on single commands rather than lists delimited with '\e'.
        The command,
        .Cm z ,
        .Cm x ,