Document encode and decode commands.

diff --git a/catsign.1 b/catsign.1
index ab07b2a..961edc3 100644 (file)
--- a/catsign.1
+++ b/catsign.1
@@ -642,6 +642,75 @@ If no
 or
 .B \-o
 option is given, a signature is written to standard output.
+.SS "encode"
+The
+.B encode
+command encodes an input file according to one of the encodings
+described above in
+.BR ENCODINGS .
+The input is read from the 
+.I file
+given on the command line, or from standard input if none is specified.
+Options provided are:
+.TP
+.BI "\-f, \-\-format " format
+Produce output in
+.IR format .
+Run
+.B catcrypt show enc
+for a list of encoding formats.
+.TP
+.BI "\-b, \-\-boundary " label
+Set the PEM boundary string to
+.IR label ;
+i.e., assuming we're encoding in PEM format, the output will have
+.BI "\-\-\-\-\-BEGIN " label "\-\-\-\-\-"
+at the top and
+.BI "\-\-\-\-\-END " label "\-\-\-\-\-"
+at the bottom.  The default
+.I label
+is
+.BR MESSAGE .
+.TP
+.BI "\-o, \-\-output " file
+Write output to
+.I file
+instead of to standard output.
+.SS "decode"
+The
+.B decode
+command decodes an input file encoded according to one of the encodings
+described above in
+.BR ENCODINGS .
+The input is read from the 
+.I file
+given on the command line, or from standard input if none is specified.
+Options provided are:
+.TP
+.BI "\-f, \-\-format " format
+Decode input in
+.IR format .
+Run
+.B catcrypt show enc
+for a list of encoding formats.
+.TP
+.BI "\-b, \-\-boundary " label
+Set the PEM boundary string to
+.IR label ;
+i.e., assuming we're encoding in PEM format, start processing input
+between
+.BI "\-\-\-\-\-BEGIN " label "\-\-\-\-\-"
+and 
+.BI "\-\-\-\-\-END " label "\-\-\-\-\-"
+lines.  Without this option,
+.B catcrypt
+will start reading at the first plausible boundary string, and continue
+processing until it reaches the matching end boundary.
+.TP
+.BI "\-o, \-\-output " file
+Write output to
+.I file
+instead of to standard output.
 .SH "BUGS"
 The trailing-whitespace deletion doesn't work for more than 32K of
 whitespace.  I don't think this is a big problem, really.