--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sbr/printsw.c	Mon Apr 18 23:46:02 2005 +0900
@@ -0,0 +1,51 @@
+/* printsw.c - print switches */
+
+#include "../h/mh.h"
+
+
+void printsw (substr, swp, prefix)
+register char  *substr,
+               *prefix;
+register struct swit   *swp;
+{
+    int     len,
+	    optno;
+    register int    i;
+    register char  *cp,
+                   *cp1,
+		   *sp;
+    char    buf[128];
+
+    len = strlen (substr);
+    for (; swp -> sw; swp++) {
+	if (!*substr ||		/* null matches all strings */
+		(ssequal (substr, swp -> sw) && len >= swp -> minchars)) {
+	    optno = 0;
+	    if (sp = (&swp[1]) -> sw) /* next switch */
+		if (!*substr && sp[0] == 'n' && sp[1] == 'o' &&
+			strcmp (&sp[2], swp -> sw) == 0 && (
+			((&swp[1]) -> minchars == 0 && swp -> minchars == 0) ||
+			((&swp[1]) -> minchars == (swp -> minchars) + 2)))
+		    optno++;
+	    if (swp -> minchars > 0) {
+		cp = buf;
+		*cp++ = '(';
+		if (optno) {
+		    (void) strcpy (cp, "[no]");
+		    cp += strlen (cp);
+		}
+		for (cp1 = swp -> sw, i = 0; i < swp -> minchars; i++)
+		    *cp++ = *cp1++;
+		*cp++ = ')';
+		while (*cp++ = *cp1++);
+		printf ("  %s%s\n", prefix, buf);
+	    }
+	    else
+		if (swp -> minchars == 0)
+		    printf (optno ? "  %s[no]%s\n" : "  %s%s\n",
+			    prefix, swp -> sw);
+	    if (optno)
+		swp++;	/* skip -noswitch */
+	}
+    }
+}