online help facility

docs/mandoc.css

@@ -52,6 +52,8 @@ table.results {	margin-top: 1em;
 		margin-left: 2em;
 		font-size: smaller; }
 
+img { max-width: 100%; }
+
 /* Header and footer lines. */
 
 table.head {	width: 100%;

views/header.html

@@ -40,6 +40,7 @@
 <li><a href="/hfcs">hfcs</a>
 <li><a href="/funzone">funzone</a>
 <li><a href="/account">account</a>
+<li><a href="/help/honk.1.html">help</a>
 <li>
 <form action="/q" method="GET">
 <input type="text" name="q" autocomplete=off size=10 placeholder="search">

web.go

@@ -1449,6 +1449,11 @@ func serveasset(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Cache-Control", "max-age=7776000")
 	http.ServeFile(w, r, "views"+r.URL.Path)
 }
+func servehelp(w http.ResponseWriter, r *http.Request) {
+	name := mux.Vars(r)["name"]
+	w.Header().Set("Cache-Control", "max-age=0")
+	http.ServeFile(w, r, "docs/" + name)
+}
 func servehtml(w http.ResponseWriter, r *http.Request) {
 	templinfo := getInfo(r)
 	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
@@ -1615,6 +1620,7 @@ func serve() {
 	getters.HandleFunc("/login", servehtml)
 	posters.HandleFunc("/dologin", login.LoginFunc)
 	getters.HandleFunc("/logout", login.LogoutFunc)
+	getters.HandleFunc("/help/{name:[[:alnum:]_.-]+}", servehelp)
 
 	loggedin := mux.NewRoute().Subrouter()
 	loggedin.Use(login.Required)