Xmenu now has a man page.

README

@@ -24,3 +24,5 @@ of tabs.  Lines without labels are menu separators.
 
 See the script ./xmenu.sh for an example of how xmenu can be used to
 draw a simple menu with submenus and separators.
+
+Read the manual for more information on running xmenu.

xmenu.1

@@ -0,0 +1,66 @@
+.TH PROG 1
+.SH NAME
+xmenu \- menu utility for X
+.SH SYNOPSIS
+.B xmenu
+.RB [ \-w ]
+.SH DESCRIPTION
+.B xmenu
+is a menu for X,
+it reads a list of newline-separated items from stdin,
+shows a menu for the user to select one of the items,
+and outputs the item selected to stdout.
+.PP
+The options are as follows:
+.TP
+.B -w
+Asks the window manager to draw a border around the menus.
+Without this options, the menus do not have border drawn by the window manager.
+.PP
+Each item read from stdin has the following format:
+.IP
+.EX
+ITEM := TABS LABEL TABS COMMAND NEWLINE
+.EE
+.PP
+That means, each item is composed by
+tabs, followed by a label, followed by more tabs, followed by a command,
+and ended by a newline.
+.IP
+The initial tabs indicate the menu hierarchy:
+items indented with a tab is shown in a submenu of the preceding item not indented.
+.IP
+The label is the string that will be shown as a item in the menu.
+An item without label is considered a separator and is drawn as a thin line in the menu
+separating the item above from the item below.
+.IP
+The command is the string that will be output after selecting the item.
+.IP
+The newline terminates the item specification.
+.SH EXAMPLES
+The following is an script exemplifying the use
+.BR xmenu .
+The output is redirected to xargs to make a command to be run by the shell.
+.IP
+.EX
+#!/bin/sh
+
+cat <<EOF | ./xmenu | xargs sh -c
+Applications
+	Web Browser	firefox
+	Image editor	gimp
+Terminal (xterm)	xterm
+Terminal (urxvt)	urxvt
+Terminal (st)		st
+
+Shutdown			poweroff
+Reboot			reboot
+EOF
+.EE
+.PP
+For example, by selecting \(lqApplications\(rq, a new menu will appear.
+Selecting \(lqWeb Browser\(rq in the new menu will open firefox.
+.SH SEE ALSO
+.IR dmenu (1),
+.IR 9menu (1),
+.IR thingmenu (1)

xmenu.c

@@ -79,7 +79,7 @@ static void setcurrmenu(struct Menu *currmenu_new);
 static void parsestdin(void);
 static void run(void);
 static void freewindow(struct Menu *menu);
-static void cleanupexit(void);
+static void cleanup(void);
 static void usage(void);
 
 /* X variables */
@@ -146,7 +146,9 @@ main(int argc, char *argv[])
 	/* run event loop */
 	run();
 
-	return 1;   /* UNREACHABLE */
+	cleanup();
+
+	return 0;
 }
 
 /* get color from color string */
@@ -576,8 +578,6 @@ run(void)
 	struct Item *previtem = NULL;
 	XEvent ev;
 
-	setcurrmenu(rootmenu);
-
 	while (!XNextEvent(dpy, &ev)) {
 		switch(ev.type) {
 		case Expose:
@@ -608,11 +608,11 @@ run(void)
 					setcurrmenu(item->submenu);
 				} else {
 					printf("%s\n", item->output);
-					cleanupexit();
+					return;
 				}
 				drawmenu();
 			} else {
-				cleanupexit();
+				return;
 			}
 			break;
 		case LeaveNotify:
@@ -639,19 +639,18 @@ freewindow(struct Menu *menu)
 
 /* cleanup and exit */
 static void
-cleanupexit(void)
+cleanup(void)
 {
 	freewindow(rootmenu);
 	XFreeFont(dpy, dc.font);
 	XFreeGC(dpy, dc.gc);
 	XCloseDisplay(dpy);
-	exit(0);
 }
 
 /* show usage */
 static void
 usage(void)
 {
-	(void)fprintf(stderr, "usage: xmenu [-w] menuname\n");
+	(void)fprintf(stderr, "usage: xmenu [-w]\n");
 	exit(1);
 }

xmenu.sh

@@ -11,4 +11,3 @@ Terminal (st)		st
 Shutdown		poweroff
 Reboot			reboot
 EOF
-