add openbsd man page shortcut

plugins/openbsd_man.go

@@ -0,0 +1,39 @@
+package plugins
+
+import (
+	"fmt"
+	"log"
+	"regexp"
+
+	"github.com/matrix-org/gomatrix"
+)
+
+// OpenBSDMan responds to beer requests
+type OpenBSDMan struct {
+}
+
+func (h *OpenBSDMan) fix(msg string) string {
+	re := regexp.MustCompile(`(?i)^man: `)
+	return re.ReplaceAllString(msg, "$1")
+}
+
+func (h *OpenBSDMan) match(msg string) bool {
+	re := regexp.MustCompile(`(?i)^man: `)
+	return re.MatchString(msg)
+}
+
+// RespondText sends back a man page.
+func (h *OpenBSDMan) RespondText(c *gomatrix.Client, ev *gomatrix.Event, user, post string) {
+	if h.match(post) {
+		page := h.fix(post)
+		if page != "" {
+			log.Printf("%s: responding to '%s'", h.Name(), ev.Sender)
+			SendText(c, ev.RoomID, fmt.Sprintf("https://man.openbsd.org/%s", page))
+		}
+	}
+}
+
+// Name OpenBSDMan!
+func (h *OpenBSDMan) Name() string {
+	return "OpenBSDMan"
+}

plugins/plugins.go

@@ -52,6 +52,7 @@ var Plugs = Plugins{
 	&HighFive{},
 	&Hi{},
 	&LoveYou{},
+	&OpenBSDMan{},
 	&Source{},
 	&Version{},
 }