mseq: add -c to override .

man/mseq.1

@@ -7,6 +7,7 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl fr
+.Op Fl c Ar file
 .Ar msgs\ ...
 .Nm
 .Fl S
@@ -45,6 +46,10 @@ If standard output is not a terminal, the new sequence is also printed.
 .Pp
 The options are as follows:
 .Bl -tag -width Ds
+.It Fl c Ar file
+Behave as if
+.Ar file
+was the current message.
 .It Fl f
 Fix non-existing filenames by searching for a message with the same
 Maildir id (but different flags).
@@ -63,14 +68,19 @@ and exit.
 .El
 .Sh ENVIRONMENT
 .Bl -tag -width Ds
-.It Ev MAILSEQ
-File were the sequence is stored.
-(Default:
-.Pa ~/.mblaze/seq )
 .It Ev MAILCUR
 Symbolic link referring to the current message.
 (Default:
 .Pa ~/.mblaze/cur )
+.It Ev MAILDOT
+When set, overrides the current message.
+(Prefer using
+.Fl c
+instead.)
+.It Ev MAILSEQ
+File were the sequence is stored.
+(Default:
+.Pa ~/.mblaze/seq )
 .El
 .Sh EXIT STATUS
 .Ex -std

mseq.c

@@ -251,8 +251,9 @@ int
 main(int argc, char *argv[])
 {
 	int c;
-	while ((c = getopt(argc, argv, "frAC:S")) != -1)
+	while ((c = getopt(argc, argv, "c:frAC:S")) != -1)
 		switch(c) {
+		case 'c': setenv("MAILDOT", optarg, 1); break;
 		case 'f': fflag = 1; break;
 		case 'r': rflag = 1; break;
 		case 'A': Sflag = Aflag = 1; break;
@@ -261,7 +262,7 @@ main(int argc, char *argv[])
 		default:
 		usage:
 			fprintf(stderr,
-			    "Usage: mseq [-fr] [msgs...]\n"
+			    "Usage: mseq [-fr] [-c file] [msgs...]\n"
 			    "       mseq -S [-fr] < sequence\n"
 			    "       mseq -A [-fr] < sequence\n"
 			    "       mseq -C msg\n"