document -- in man and --help

4 files changed, 17 insertions, 1 deletions

diff --git a/mkusage.pl b/mkusage.pl
index 0506d8c..446beab 100644
--- a/mkusage.pl
+++ b/mkusage.pl
@@ -4,7 +4,8 @@ print "char *usage_opts[] = {\n";
 
 while(<>) {
 	chomp;
-	if(/^-[a-zA-Z\d]/) {
+	next if /^---/;
+	if(/^-[-a-zA-Z\d]/) {
 		$opt = $_;
 		next;
 	}
diff --git a/usage.c b/usage.c
index cf7e1da..b8a4428 100644
--- a/usage.c
+++ b/usage.c
@@ -1,4 +1,5 @@
 char *usage_opts[] = {
+	"  --: no more options.",
 	"  -1: don't alternate colors for normal characters.",
 	"  -b: bold color output.",
 	"  -c nnnnn: colors (2 to 5 digits, 0 to 7).",
diff --git a/uxd.1 b/uxd.1
index efb439f..1e55777 100644
--- a/uxd.1
+++ b/uxd.1
@@ -69,6 +69,14 @@ as \fIK\fP, \fIM\fP, and \fIG\fP for power\-of\-10 based (e.g. \fI1K\fP is 1000
 .
 .INDENT 0.0
 .TP
+.B \-\-
+No more options; whatever comes after this is a filename, even if it
+begins with \fB\-\fP\&.
+.UNINDENT
+.\" no more options.
+.
+.INDENT 0.0
+.TP
 .B  \-1
 Don\(aqt alternate colors for normal characters.
 .UNINDENT
diff --git a/uxd.rst b/uxd.rst
index 16a6a37..f1fdb98 100644
--- a/uxd.rst
+++ b/uxd.rst
@@ -58,6 +58,12 @@ as *K*, *M*, and *G* for power-of-10 based (e.g. *1K* is 1000 bytes).
 
 .. the comments are turned into the --help message by mkusage.pl.
 
+--
+   No more options; whatever comes after this is a filename, even if it
+   begins with **-**.
+
+.. no more options.
+
 -1
    Don't alternate colors for normal characters.