+// stdio.asm: WORD p_stream_nchars,'STREAM-NCHARS',fasm
+
anchor:p_stream_nchars[]
-Word: STREAM-NCHARS
--------------------
+=== Word: STREAM-NCHARS
+....
+Data stack: ( stream -- n )
+....
-----
-stdio.asm: WORD p_stream_nchars,'STREAM-NCHARS',fasm
-----
+"STREAM-NCHARS" is a function word that scans ahead in the stream
+buffer for the next non-whitespace character, and returns its position
+relative to the end of the buffer. This is done without changing the
+stream (or filling it by reading the backing file).