Minor updates.

Author: interkosmos

app/dmved.f90

@@ -294,6 +294,7 @@ integer function run(app, tty) result(rc)
             ! Fill VE.Direct protocol frame.
             call dm_ve_frame_next(frame, byte, eor, finished, valid)
 
+            ! VE.Direct block finished.
             if (finished) then
                 if (valid) then
                     epoch_now = dm_time_unix()
@@ -316,6 +317,7 @@ integer function run(app, tty) result(rc)
                 cycle tty_loop
             end if
 
+            ! VE.Direct frame finished.
             if (eor) then
                 if (frame%label == 'BMV')  cycle tty_loop              ! Ignore deprecated model description.
                 if (frame%label == 'SER#') cycle tty_loop              ! Ignore serial number field.
@@ -325,6 +327,7 @@ integer function run(app, tty) result(rc)
                     call logger%warning(dm_ve_error_message(code), error=E_SENSOR)
                 end if
 
+                ! VE.Direct frame to response.
                 call dm_ve_frame_read(frame, response, field_type, error=rc)
 
                 if (dm_is_error(rc)) then

guide/guide.adoc

@@ -2738,7 +2738,7 @@ Start <<dmrecv>> to receive observations and output them to _stdout_ in JSONL
 format:
 
 ....
-$ dmrecv --name dmrecv --type observ --format jsonl --output -
+$ dmrecv --name dmrecv --type observ --format jsonl
 ....
 
 Start *dmved* to read and forward status data from the connected MPPT every 60

src/dm_request.f90

@@ -216,10 +216,11 @@ pure elemental logical function dm_request_is_valid(request, timestamp) result(v
         if (.not. dm_string_is_printable(request%delimiter)) return
         if (.not. dm_string_is_printable(request%pattern))   return
 
-        if (request%delay < 0) return
         if (.not. dm_error_is_valid(request%error)) return
+
+        if (request%delay < 0)   return
         if (request%retries < 0) return
-        if (request%state < 0) return
+        if (request%state < 0)   return
         if (request%timeout < 0) return
 
         if (request%nresponses < 0 .or. request%nresponses > REQUEST_MAX_NRESPONSES) return

src/dm_tty.f90

@@ -721,8 +721,8 @@ integer function dm_tty_write_request(tty, request) result(rc)
         use :: dm_ascii, only: dm_ascii_unescape
         use :: dm_request
 
-        type(tty_type),     intent(inout)        :: tty     !! TTY type.
-        type(request_type), intent(inout)        :: request !! Request type
+        type(tty_type),     intent(inout) :: tty     !! TTY type.
+        type(request_type), intent(inout) :: request !! Request type
 
         character(len=REQUEST_REQUEST_LEN) :: raw ! Raw request (unescaped).