tmicromizing dwm step 1 - dwm - [fork] customized build of dwm, the dynamic window manager
 (HTM) git clone git://src.adamsgaard.dk/dwm
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 (DIR) LICENSE
       ---
 (DIR) commit 0235a84ef286db5c97239615ae525ce973641941
 (DIR) parent 2091200c957783deed032380d56c4199a23c6b81
 (HTM) Author: Anselm R. Garbe <garbeam@gmail.com>
       Date:   Sat, 15 Sep 2007 22:25:27 +0200
       
       micromizing dwm step 1
       Diffstat:
         M Makefile                            |       6 +++---
         D bar.c                               |     263 -------------------------------
         D client.c                            |     386 -------------------------------
         M config.h                            |      26 +++++++++++---------------
         M config.mk                           |       3 ---
         A dwm.c                               |    1847 +++++++++++++++++++++++++++++++
         D dwm.h                               |     147 -------------------------------
         D event.c                             |     375 -------------------------------
         D main.c                              |     296 -------------------------------
         D screen.c                            |     340 -------------------------------
         D tile.c                              |      85 -------------------------------
         D tile.h                              |       6 ------
         D util.c                              |      52 -------------------------------
       
       13 files changed, 1861 insertions(+), 1971 deletions(-)
       ---
 (DIR) diff --git a/Makefile b/Makefile
       t@@ -3,7 +3,7 @@
        
        include config.mk
        
       -SRC += bar.c client.c event.c main.c screen.c util.c
       +SRC = dwm.c
        OBJ = ${SRC:.c=.o}
        
        all: options dwm
       t@@ -18,7 +18,7 @@ options:
                @echo CC $<
                @${CC} -c ${CFLAGS} $<
        
       -${OBJ}: dwm.h config.h config.mk
       +${OBJ}: config.h config.mk
        
        dwm: ${OBJ}
                @echo CC -o $@
       t@@ -32,7 +32,7 @@ dist: clean
                @echo creating dist tarball
                @mkdir -p dwm-${VERSION}
                @cp -R LICENSE Makefile README config.h config.mk \
       -                dwm.1 dwm.h tile.h ${SRC} dwm-${VERSION}
       +                dwm.1 ${SRC} dwm-${VERSION}
                @tar -cf dwm-${VERSION}.tar dwm-${VERSION}
                @gzip dwm-${VERSION}.tar
                @rm -rf dwm-${VERSION}
 (DIR) diff --git a/bar.c b/bar.c
       t@@ -1,263 +0,0 @@
       -/* See LICENSE file for copyright and license details. */
       -#include "dwm.h"
       -#include <string.h>
       -#include <stdio.h>
       -
       -/* static */
       -
       -static void
       -drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
       -        int x;
       -        XGCValues gcv;
       -        XRectangle r = { dc.x, dc.y, dc.w, dc.h };
       -
       -        gcv.foreground = col[ColFG];
       -        XChangeGC(dpy, dc.gc, GCForeground, &gcv);
       -        x = (dc.font.ascent + dc.font.descent + 2) / 4;
       -        r.x = dc.x + 1;
       -        r.y = dc.y + 1;
       -        if(filled) {
       -                r.width = r.height = x + 1;
       -                XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
       -        }
       -        else if(empty) {
       -                r.width = r.height = x;
       -                XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
       -        }
       -}
       -
       -static unsigned long
       -initcolor(const char *colstr) {
       -        Colormap cmap = DefaultColormap(dpy, screen);
       -        XColor color;
       -
       -        if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
       -                eprint("error, cannot allocate color '%s'\n", colstr);
       -        return color.pixel;
       -}
       -
       -static void
       -initfont(const char *fontstr) {
       -        char *def, **missing;
       -        int i, n;
       -
       -        missing = NULL;
       -        if(dc.font.set)
       -                XFreeFontSet(dpy, dc.font.set);
       -        dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
       -        if(missing) {
       -                while(n--)
       -                        fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
       -                XFreeStringList(missing);
       -        }
       -        if(dc.font.set) {
       -                XFontSetExtents *font_extents;
       -                XFontStruct **xfonts;
       -                char **font_names;
       -                dc.font.ascent = dc.font.descent = 0;
       -                font_extents = XExtentsOfFontSet(dc.font.set);
       -                n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
       -                for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
       -                        if(dc.font.ascent < (*xfonts)->ascent)
       -                                dc.font.ascent = (*xfonts)->ascent;
       -                        if(dc.font.descent < (*xfonts)->descent)
       -                                dc.font.descent = (*xfonts)->descent;
       -                        xfonts++;
       -                }
       -        }
       -        else {
       -                if(dc.font.xfont)
       -                        XFreeFont(dpy, dc.font.xfont);
       -                dc.font.xfont = NULL;
       -                if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
       -                || !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
       -                        eprint("error, cannot load font: '%s'\n", fontstr);
       -                dc.font.ascent = dc.font.xfont->ascent;
       -                dc.font.descent = dc.font.xfont->descent;
       -        }
       -        dc.font.height = dc.font.ascent + dc.font.descent;
       -}
       -
       -static Bool
       -isoccupied(unsigned int t) {
       -        Client *c;
       -
       -        for(c = clients; c; c = c->next)
       -                if(c->tags[t])
       -                        return True;
       -        return False;
       -}
       -
       -static unsigned int
       -textnw(const char *text, unsigned int len) {
       -        XRectangle r;
       -
       -        if(dc.font.set) {
       -                XmbTextExtents(dc.font.set, text, len, NULL, &r);
       -                return r.width;
       -        }
       -        return XTextWidth(dc.font.xfont, text, len);
       -}
       -
       -static void
       -drawtext(const char *text, unsigned long col[ColLast]) {
       -        int x, y, w, h;
       -        static char buf[256];
       -        unsigned int len, olen;
       -        XRectangle r = { dc.x, dc.y, dc.w, dc.h };
       -
       -        XSetForeground(dpy, dc.gc, col[ColBG]);
       -        XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
       -        if(!text)
       -                return;
       -        w = 0;
       -        olen = len = strlen(text);
       -        if(len >= sizeof buf)
       -                len = sizeof buf - 1;
       -        memcpy(buf, text, len);
       -        buf[len] = 0;
       -        h = dc.font.ascent + dc.font.descent;
       -        y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
       -        x = dc.x + (h / 2);
       -        /* shorten text if necessary */
       -        while(len && (w = textnw(buf, len)) > dc.w - h)
       -                buf[--len] = 0;
       -        if(len < olen) {
       -                if(len > 1)
       -                        buf[len - 1] = '.';
       -                if(len > 2)
       -                        buf[len - 2] = '.';
       -                if(len > 3)
       -                        buf[len - 3] = '.';
       -        }
       -        if(w > dc.w)
       -                return; /* too long */
       -        XSetForeground(dpy, dc.gc, col[ColFG]);
       -        if(dc.font.set)
       -                XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
       -        else
       -                XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
       -}
       -
       -/* extern */
       -
       -unsigned int bh;
       -unsigned int bpos = BARPOS;
       -DC dc = {0};
       -Window barwin;
       -
       -void
       -drawbar(void) {
       -        int i, x;
       -
       -        dc.x = dc.y = 0;
       -        for(i = 0; i < ntags; i++) {
       -                dc.w = textw(tags[i]);
       -                if(seltags[i]) {
       -                        drawtext(tags[i], dc.sel);
       -                        drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel);
       -                }
       -                else {
       -                        drawtext(tags[i], dc.norm);
       -                        drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm);
       -                }
       -                dc.x += dc.w;
       -        }
       -        dc.w = blw;
       -        drawtext(getsymbol(), dc.norm);
       -        x = dc.x + dc.w;
       -        dc.w = textw(stext);
       -        dc.x = sw - dc.w;
       -        if(dc.x < x) {
       -                dc.x = x;
       -                dc.w = sw - x;
       -        }
       -        drawtext(stext, dc.norm);
       -        if((dc.w = dc.x - x) > bh) {
       -                dc.x = x;
       -                if(sel) {
       -                        drawtext(sel->name, dc.sel);
       -                        drawsquare(sel->ismax, sel->isfloating, dc.sel);
       -                }
       -                else
       -                        drawtext(NULL, dc.norm);
       -        }
       -        XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
       -        XSync(dpy, False);
       -}
       -
       -void
       -initstyle(void) {
       -        dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR);
       -        dc.norm[ColBG] = initcolor(NORMBGCOLOR);
       -        dc.norm[ColFG] = initcolor(NORMFGCOLOR);
       -        dc.sel[ColBorder] = initcolor(SELBORDERCOLOR);
       -        dc.sel[ColBG] = initcolor(SELBGCOLOR);
       -        dc.sel[ColFG] = initcolor(SELFGCOLOR);
       -        initfont(FONT);
       -        dc.h = bh = dc.font.height + 2;
       -}
       -
       -void
       -initbar(void) {
       -        XSetWindowAttributes wa;
       -
       -        wa.override_redirect = 1;
       -        wa.background_pixmap = ParentRelative;
       -        wa.event_mask = ButtonPressMask | ExposureMask;
       -        barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0,
       -                        DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
       -                        CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
       -        XDefineCursor(dpy, barwin, cursor[CurNormal]);
       -        updatebarpos();
       -        XMapRaised(dpy, barwin);
       -        strcpy(stext, "dwm-"VERSION);
       -        dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
       -        dc.gc = XCreateGC(dpy, root, 0, 0);
       -        XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
       -        if(!dc.font.set)
       -                XSetFont(dpy, dc.gc, dc.font.xfont->fid);
       -}
       -
       -unsigned int
       -textw(const char *text) {
       -        return textnw(text, strlen(text)) + dc.font.height;
       -}
       -
       -void
       -togglebar(const char *arg) {
       -        if(bpos == BarOff)
       -                bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
       -        else
       -                bpos = BarOff;
       -        updatebarpos();
       -        arrange();
       -}
       -
       -void
       -updatebarpos(void) {
       -        XEvent ev;
       -
       -        wax = sx;
       -        way = sy;
       -        wah = sh;
       -        waw = sw;
       -        switch(bpos) {
       -        default:
       -                wah -= bh;
       -                way += bh;
       -                XMoveWindow(dpy, barwin, sx, sy);
       -                break;
       -        case BarBot:
       -                wah -= bh;
       -                XMoveWindow(dpy, barwin, sx, sy + wah);
       -                break;
       -        case BarOff:
       -                XMoveWindow(dpy, barwin, sx, sy - bh);
       -                break;
       -        }
       -        XSync(dpy, False);
       -        while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
       -}
       -
       -
 (DIR) diff --git a/client.c b/client.c
       t@@ -1,386 +0,0 @@
       -/* See LICENSE file for copyright and license details. */
       -#include "dwm.h"
       -#include <stdlib.h>
       -#include <X11/Xutil.h>
       -
       -/* static */
       -
       -static void
       -attachstack(Client *c) {
       -        c->snext = stack;
       -        stack = c;
       -}
       -
       -static void
       -detachstack(Client *c) {
       -        Client **tc;
       -
       -        for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
       -        *tc = c->snext;
       -}
       -
       -static void
       -grabbuttons(Client *c, Bool focused) {
       -        XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
       -
       -        if(focused) {
       -                XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -                XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -                XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -                XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -
       -                XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -                XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -                XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -                XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -
       -                XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -                XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -                XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -                XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -        }
       -        else
       -                XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
       -                                GrabModeAsync, GrabModeSync, None, None);
       -}
       -
       -static Bool
       -isprotodel(Client *c) {
       -        int i, n;
       -        Atom *protocols;
       -        Bool ret = False;
       -
       -        if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
       -                for(i = 0; !ret && i < n; i++)
       -                        if(protocols[i] == wmatom[WMDelete])
       -                                ret = True;
       -                XFree(protocols);
       -        }
       -        return ret;
       -}
       -
       -static void
       -setclientstate(Client *c, long state) {
       -        long data[] = {state, None};
       -
       -        XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
       -                        PropModeReplace, (unsigned char *)data, 2);
       -}
       -
       -static int
       -xerrordummy(Display *dsply, XErrorEvent *ee) {
       -        return 0;
       -}
       -
       -/* extern */
       -
       -void
       -attach(Client *c) {
       -        if(clients)
       -                clients->prev = c;
       -        c->next = clients;
       -        clients = c;
       -}
       -
       -void
       -ban(Client *c) {
       -        if(c->isbanned)
       -                return;
       -        XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
       -        c->isbanned = True;
       -}
       -
       -void
       -configure(Client *c) {
       -        XConfigureEvent ce;
       -
       -        ce.type = ConfigureNotify;
       -        ce.display = dpy;
       -        ce.event = c->win;
       -        ce.window = c->win;
       -        ce.x = c->x;
       -        ce.y = c->y;
       -        ce.width = c->w;
       -        ce.height = c->h;
       -        ce.border_width = c->border;
       -        ce.above = None;
       -        ce.override_redirect = False;
       -        XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
       -}
       -
       -void
       -detach(Client *c) {
       -        if(c->prev)
       -                c->prev->next = c->next;
       -        if(c->next)
       -                c->next->prev = c->prev;
       -        if(c == clients)
       -                clients = c->next;
       -        c->next = c->prev = NULL;
       -}
       -
       -void
       -focus(Client *c) {
       -        if((!c && selscreen) || (c && !isvisible(c)))
       -                for(c = stack; c && !isvisible(c); c = c->snext);
       -        if(sel && sel != c) {
       -                grabbuttons(sel, False);
       -                XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
       -        }
       -        if(c) {
       -                detachstack(c);
       -                attachstack(c);
       -                grabbuttons(c, True);
       -        }
       -        sel = c;
       -        drawbar();
       -        if(!selscreen)
       -                return;
       -        if(c) {
       -                XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
       -                XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
       -        }
       -        else
       -                XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
       -}
       -
       -void
       -killclient(const char *arg) {
       -        XEvent ev;
       -
       -        if(!sel)
       -                return;
       -        if(isprotodel(sel)) {
       -                ev.type = ClientMessage;
       -                ev.xclient.window = sel->win;
       -                ev.xclient.message_type = wmatom[WMProtocols];
       -                ev.xclient.format = 32;
       -                ev.xclient.data.l[0] = wmatom[WMDelete];
       -                ev.xclient.data.l[1] = CurrentTime;
       -                XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
       -        }
       -        else
       -                XKillClient(dpy, sel->win);
       -}
       -
       -void
       -manage(Window w, XWindowAttributes *wa) {
       -        unsigned int i;
       -        Client *c, *t = NULL;
       -        Window trans;
       -        Status rettrans;
       -        XWindowChanges wc;
       -
       -        c = emallocz(sizeof(Client));
       -        c->tags = emallocz(ntags * sizeof(Bool));
       -        c->win = w;
       -        c->x = wa->x;
       -        c->y = wa->y;
       -        c->w = wa->width;
       -        c->h = wa->height;
       -        c->oldborder = wa->border_width;
       -        if(c->w == sw && c->h == sh) {
       -                c->x = sx;
       -                c->y = sy;
       -                c->border = wa->border_width;
       -        }
       -        else {
       -                if(c->x + c->w + 2 * c->border > wax + waw)
       -                        c->x = wax + waw - c->w - 2 * c->border;
       -                if(c->y + c->h + 2 * c->border > way + wah)
       -                        c->y = way + wah - c->h - 2 * c->border;
       -                if(c->x < wax)
       -                        c->x = wax;
       -                if(c->y < way)
       -                        c->y = way;
       -                c->border = BORDERPX;
       -        }
       -        wc.border_width = c->border;
       -        XConfigureWindow(dpy, w, CWBorderWidth, &wc);
       -        XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
       -        configure(c); /* propagates border_width, if size doesn't change */
       -        updatesizehints(c);
       -        XSelectInput(dpy, w,
       -                StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
       -        grabbuttons(c, False);
       -        updatetitle(c);
       -        if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
       -                for(t = clients; t && t->win != trans; t = t->next);
       -        if(t)
       -                for(i = 0; i < ntags; i++)
       -                        c->tags[i] = t->tags[i];
       -        applyrules(c);
       -        if(!c->isfloating)
       -                c->isfloating = (rettrans == Success) || c->isfixed;
       -        attach(c);
       -        attachstack(c);
       -        XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
       -        ban(c);
       -        XMapWindow(dpy, c->win);
       -        setclientstate(c, NormalState);
       -        arrange();
       -}
       -
       -void
       -resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
       -        double dx, dy, max, min, ratio;
       -        XWindowChanges wc; 
       -
       -        if(sizehints) {
       -                if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) {
       -                        dx = (double)(w - c->basew);
       -                        dy = (double)(h - c->baseh);
       -                        min = (double)(c->minax) / (double)(c->minay);
       -                        max = (double)(c->maxax) / (double)(c->maxay);
       -                        ratio = dx / dy;
       -                        if(max > 0 && min > 0 && ratio > 0) {
       -                                if(ratio < min) {
       -                                        dy = (dx * min + dy) / (min * min + 1);
       -                                        dx = dy * min;
       -                                        w = (int)dx + c->basew;
       -                                        h = (int)dy + c->baseh;
       -                                }
       -                                else if(ratio > max) {
       -                                        dy = (dx * min + dy) / (max * max + 1);
       -                                        dx = dy * min;
       -                                        w = (int)dx + c->basew;
       -                                        h = (int)dy + c->baseh;
       -                                }
       -                        }
       -                }
       -                if(c->minw && w < c->minw)
       -                        w = c->minw;
       -                if(c->minh && h < c->minh)
       -                        h = c->minh;
       -                if(c->maxw && w > c->maxw)
       -                        w = c->maxw;
       -                if(c->maxh && h > c->maxh)
       -                        h = c->maxh;
       -                if(c->incw)
       -                        w -= (w - c->basew) % c->incw;
       -                if(c->inch)
       -                        h -= (h - c->baseh) % c->inch;
       -        }
       -        if(w <= 0 || h <= 0)
       -                return;
       -        /* offscreen appearance fixes */
       -        if(x > sw)
       -                x = sw - w - 2 * c->border;
       -        if(y > sh)
       -                y = sh - h - 2 * c->border;
       -        if(x + w + 2 * c->border < sx)
       -                x = sx;
       -        if(y + h + 2 * c->border < sy)
       -                y = sy;
       -        if(c->x != x || c->y != y || c->w != w || c->h != h) {
       -                c->x = wc.x = x;
       -                c->y = wc.y = y;
       -                c->w = wc.width = w;
       -                c->h = wc.height = h;
       -                wc.border_width = c->border;
       -                XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
       -                configure(c);
       -                XSync(dpy, False);
       -        }
       -}
       -
       -void
       -unban(Client *c) {
       -        if(!c->isbanned)
       -                return;
       -        XMoveWindow(dpy, c->win, c->x, c->y);
       -        c->isbanned = False;
       -}
       -
       -void
       -unmanage(Client *c) {
       -        XWindowChanges wc;
       -
       -        wc.border_width = c->oldborder;
       -        /* The server grab construct avoids race conditions. */
       -        XGrabServer(dpy);
       -        XSetErrorHandler(xerrordummy);
       -        XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
       -        detach(c);
       -        detachstack(c);
       -        if(sel == c)
       -                focus(NULL);
       -        XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
       -        setclientstate(c, WithdrawnState);
       -        free(c->tags);
       -        free(c);
       -        XSync(dpy, False);
       -        XSetErrorHandler(xerror);
       -        XUngrabServer(dpy);
       -        arrange();
       -}
       -
       -void
       -updatesizehints(Client *c) {
       -        long msize;
       -        XSizeHints size;
       -
       -        if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
       -                size.flags = PSize;
       -        c->flags = size.flags;
       -        if(c->flags & PBaseSize) {
       -                c->basew = size.base_width;
       -                c->baseh = size.base_height;
       -        }
       -        else if(c->flags & PMinSize) {
       -                c->basew = size.min_width;
       -                c->baseh = size.min_height;
       -        }
       -        else
       -                c->basew = c->baseh = 0;
       -        if(c->flags & PResizeInc) {
       -                c->incw = size.width_inc;
       -                c->inch = size.height_inc;
       -        }
       -        else
       -                c->incw = c->inch = 0;
       -        if(c->flags & PMaxSize) {
       -                c->maxw = size.max_width;
       -                c->maxh = size.max_height;
       -        }
       -        else
       -                c->maxw = c->maxh = 0;
       -        if(c->flags & PMinSize) {
       -                c->minw = size.min_width;
       -                c->minh = size.min_height;
       -        }
       -        else if(c->flags & PBaseSize) {
       -                c->minw = size.base_width;
       -                c->minh = size.base_height;
       -        }
       -        else
       -                c->minw = c->minh = 0;
       -        if(c->flags & PAspect) {
       -                c->minax = size.min_aspect.x;
       -                c->maxax = size.max_aspect.x;
       -                c->minay = size.min_aspect.y;
       -                c->maxay = size.max_aspect.y;
       -        }
       -        else
       -                c->minax = c->maxax = c->minay = c->maxay = 0;
       -        c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
       -                        && c->maxw == c->minw && c->maxh == c->minh);
       -}
       -
       -void
       -updatetitle(Client *c) {
       -        if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
       -                gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
       -}
 (DIR) diff --git a/config.h b/config.h
       t@@ -12,24 +12,20 @@
        #define SELFGCOLOR                "#fff"
        
        /* tagging */
       -#define TAGS \
       -const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
       -#define RULES \
       -static Rule rules[] = { \
       -        /* class:instance:title regex        tags regex        isfloating */ \
       -        { "Firefox",                        "3",                False }, \
       -        { "Gimp",                        NULL,                True }, \
       -        { "MPlayer",                        NULL,                True }, \
       -        { "Acroread",                        NULL,                True }, \
       +static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
       +static Rule rules[] = {
       +        /* class:instance:title regex        tags regex        isfloating */
       +        { "Firefox",                        "3",                False },
       +        { "Gimp",                        NULL,                True },
       +        { "MPlayer",                        NULL,                True },
       +        { "Acroread",                        NULL,                True },
        };
        
        /* layout(s) */
       -#include "tile.h"
       -#define LAYOUTS \
       -static Layout layouts[] = { \
       -        /* symbol                function */ \
       -        { "[]=",                tile }, /* first entry is default */ \
       -        { "><>",                floating }, \
       +static Layout layouts[] = {
       +        /* symbol                function */
       +        { "[]=",                tile }, /* first entry is default */
       +        { "><>",                floating },
        };
        #define RESIZEHINTS                True        /* False - respect size hints in tiled resizals */
        #define MWFACT                        0.6        /* master width factor [0.1 .. 0.9] */
 (DIR) diff --git a/config.mk b/config.mk
       t@@ -3,9 +3,6 @@ VERSION = 4.5
        
        # Customize below to fit your system
        
       -# additional layouts beside floating
       -SRC = tile.c
       -
        # paths
        PREFIX = /usr/local
        MANPREFIX = ${PREFIX}/share/man
 (DIR) diff --git a/dwm.c b/dwm.c
       t@@ -0,0 +1,1847 @@
       +/* See LICENSE file for copyright and license details. */
       +#include <errno.h>
       +#include <locale.h>
       +#include <regex.h>
       +#include <stdarg.h>
       +#include <stdio.h>
       +#include <stdlib.h>
       +#include <string.h>
       +#include <unistd.h>
       +#include <sys/select.h>
       +#include <sys/wait.h>
       +#include <X11/cursorfont.h>
       +#include <X11/keysym.h>
       +#include <X11/Xatom.h>
       +#include <X11/Xproto.h>
       +#include <X11/Xutil.h>
       +
       +/* macros */
       +#define BUTTONMASK                (ButtonPressMask | ButtonReleaseMask)
       +#define CLEANMASK(mask)                (mask & ~(numlockmask | LockMask))
       +#define MOUSEMASK                (BUTTONMASK | PointerMotionMask)
       +
       +/* enums */
       +enum { BarTop, BarBot, BarOff };                        /* bar position */
       +enum { CurNormal, CurResize, CurMove, CurLast };        /* cursor */
       +enum { ColBorder, ColFG, ColBG, ColLast };                /* color */
       +enum { NetSupported, NetWMName, NetLast };                /* EWMH atoms */
       +enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
       +
       +/* typedefs */
       +typedef struct Client Client;
       +struct Client {
       +        char name[256];
       +        int x, y, w, h;
       +        int rx, ry, rw, rh; /* revert geometry */
       +        int basew, baseh, incw, inch, maxw, maxh, minw, minh;
       +        int minax, maxax, minay, maxay;
       +        long flags; 
       +        unsigned int border, oldborder;
       +        Bool isbanned, isfixed, ismax, isfloating;
       +        Bool *tags;
       +        Client *next;
       +        Client *prev;
       +        Client *snext;
       +        Window win;
       +};
       +
       +typedef struct {
       +        int x, y, w, h;
       +        unsigned long norm[ColLast];
       +        unsigned long sel[ColLast];
       +        Drawable drawable;
       +        GC gc;
       +        struct {
       +                int ascent;
       +                int descent;
       +                int height;
       +                XFontSet set;
       +                XFontStruct *xfont;
       +        } font;
       +} DC; /* draw context */
       +
       +typedef struct {
       +        unsigned long mod;
       +        KeySym keysym;
       +        void (*func)(const char *arg);
       +        const char *arg;
       +} Key;
       +
       +typedef struct {
       +        const char *symbol;
       +        void (*arrange)(void);
       +} Layout;
       +
       +typedef struct {
       +        const char *prop;
       +        const char *tags;
       +        Bool isfloating;
       +} Rule;
       +
       +typedef struct {
       +        regex_t *propregex;
       +        regex_t *tagregex;
       +} Regs;
       +
       +/* functions */
       +static void eprint(const char *errstr, ...);
       +static void *emallocz(unsigned int size);
       +static void spawn(const char *arg);
       +static void drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]);
       +static unsigned long initcolor(const char *colstr);
       +static void initfont(const char *fontstr);
       +static Bool isoccupied(unsigned int t);
       +static unsigned int textnw(const char *text, unsigned int len);
       +static void drawtext(const char *text, unsigned long col[ColLast]);
       +static void drawbar(void);
       +static void initstyle(void);
       +static void initbar(void);
       +static unsigned int textw(const char *text);
       +static void togglebar(const char *arg);
       +static void updatebarpos(void);
       +static void attachstack(Client *c);
       +static void detachstack(Client *c);
       +static void grabbuttons(Client *c, Bool focused);
       +static Bool isprotodel(Client *c);
       +static void setclientstate(Client *c, long state);
       +static int xerrordummy(Display *dsply, XErrorEvent *ee);
       +static void ban(Client *c);
       +static void configure(Client *c);
       +static void killclient(const char *arg);
       +static void manage(Window w, XWindowAttributes *wa);
       +static void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
       +static void unban(Client *c);
       +static void unmanage(Client *c);
       +static void updatesizehints(Client *c);
       +static void updatetitle(Client *c);
       +static Client *getclient(Window w);
       +static void movemouse(Client *c);
       +static void resizemouse(Client *c);
       +static void buttonpress(XEvent *e);
       +static void configurerequest(XEvent *e);
       +static void configurenotify(XEvent *e);
       +static void destroynotify(XEvent *e);
       +static void enternotify(XEvent *e);
       +static void expose(XEvent *e);
       +static void keypress(XEvent *e);
       +static void leavenotify(XEvent *e);
       +static void mappingnotify(XEvent *e);
       +static void maprequest(XEvent *e);
       +static void propertynotify(XEvent *e);
       +static void unmapnotify(XEvent *e);
       +static void grabkeys(void);
       +static unsigned int idxoftag(const char *tag);
       +static void floating(void); /* default floating layout */
       +static void applyrules(Client *c);
       +static void compileregs(void);
       +static void focusnext(const char *arg);
       +static void focusprev(const char *arg);
       +static void initlayouts(void);
       +static Bool isfloating(void);
       +static Bool isvisible(Client *c);
       +static void restack(void);
       +static void setlayout(const char *arg);
       +static void tag(const char *arg);
       +static void togglefloating(const char *arg);
       +static void togglemax(const char *arg);
       +static void toggletag(const char *arg);
       +static void toggleview(const char *arg);
       +static void view(const char *arg);
       +static void cleanup(void);
       +static long getstate(Window w);
       +static void scan(void);
       +static void setup(void);
       +static int xerrorstart(Display *dsply, XErrorEvent *ee);
       +static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
       +static void quit(const char *arg);
       +static int xerror(Display *dpy, XErrorEvent *ee);
       +static void arrange(void);
       +static void attach(Client *c);
       +static void detach(Client *c);
       +static void focus(Client *c);
       +static Bool isarrange(void (*func)());
       +static Client *nexttiled(Client *c);
       +static void setmwfact(const char *arg);
       +static void tile(void);
       +static void zoom(const char *arg);
       +
       +#include "config.h"
       +
       +/* variables */
       +static char stext[256];
       +static double mwfact = MWFACT;
       +static int screen, sx, sy, sw, sh, wax, way, waw, wah;
       +static int (*xerrorxlib)(Display *, XErrorEvent *);
       +static unsigned int bh;
       +static unsigned int blw = 0;
       +static unsigned int bpos = BARPOS;
       +static unsigned int ltidx = 0; /* default */
       +static unsigned int nlayouts = 0;
       +static unsigned int nrules = 0;
       +static unsigned int ntags;
       +static unsigned int numlockmask = 0;
       +static void (*handler[LASTEvent]) (XEvent *) = {
       +        [ButtonPress] = buttonpress,
       +        [ConfigureRequest] = configurerequest,
       +        [ConfigureNotify] = configurenotify,
       +        [DestroyNotify] = destroynotify,
       +        [EnterNotify] = enternotify,
       +        [LeaveNotify] = leavenotify,
       +        [Expose] = expose,
       +        [KeyPress] = keypress,
       +        [MappingNotify] = mappingnotify,
       +        [MapRequest] = maprequest,
       +        [PropertyNotify] = propertynotify,
       +        [UnmapNotify] = unmapnotify
       +};
       +static Atom wmatom[WMLast], netatom[NetLast];
       +static Bool otherwm, readin;
       +static Bool running = True;
       +static Bool *seltags;
       +static Bool selscreen = True;
       +static Client *clients = NULL;
       +static Client *sel = NULL;
       +static Client *stack = NULL;
       +static Cursor cursor[CurLast];
       +static Display *dpy;
       +static DC dc = {0};
       +static Window barwin, root;
       +static Regs *regs = NULL;
       +
       +static void
       +eprint(const char *errstr, ...) {
       +        va_list ap;
       +
       +        va_start(ap, errstr);
       +        vfprintf(stderr, errstr, ap);
       +        va_end(ap);
       +        exit(EXIT_FAILURE);
       +}
       +
       +static void *
       +emallocz(unsigned int size) {
       +        void *res = calloc(1, size);
       +
       +        if(!res)
       +                eprint("fatal: could not malloc() %u bytes\n", size);
       +        return res;
       +}
       +
       +static void
       +spawn(const char *arg) {
       +        static char *shell = NULL;
       +
       +        if(!shell && !(shell = getenv("SHELL")))
       +                shell = "/bin/sh";
       +        if(!arg)
       +                return;
       +        /* The double-fork construct avoids zombie processes and keeps the code
       +         * clean from stupid signal handlers. */
       +        if(fork() == 0) {
       +                if(fork() == 0) {
       +                        if(dpy)
       +                                close(ConnectionNumber(dpy));
       +                        setsid();
       +                        execl(shell, shell, "-c", arg, (char *)NULL);
       +                        fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
       +                        perror(" failed");
       +                }
       +                exit(0);
       +        }
       +        wait(0);
       +}
       +
       +static void
       +drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
       +        int x;
       +        XGCValues gcv;
       +        XRectangle r = { dc.x, dc.y, dc.w, dc.h };
       +
       +        gcv.foreground = col[ColFG];
       +        XChangeGC(dpy, dc.gc, GCForeground, &gcv);
       +        x = (dc.font.ascent + dc.font.descent + 2) / 4;
       +        r.x = dc.x + 1;
       +        r.y = dc.y + 1;
       +        if(filled) {
       +                r.width = r.height = x + 1;
       +                XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
       +        }
       +        else if(empty) {
       +                r.width = r.height = x;
       +                XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
       +        }
       +}
       +
       +static unsigned long
       +initcolor(const char *colstr) {
       +        Colormap cmap = DefaultColormap(dpy, screen);
       +        XColor color;
       +
       +        if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
       +                eprint("error, cannot allocate color '%s'\n", colstr);
       +        return color.pixel;
       +}
       +
       +static void
       +initfont(const char *fontstr) {
       +        char *def, **missing;
       +        int i, n;
       +
       +        missing = NULL;
       +        if(dc.font.set)
       +                XFreeFontSet(dpy, dc.font.set);
       +        dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
       +        if(missing) {
       +                while(n--)
       +                        fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
       +                XFreeStringList(missing);
       +        }
       +        if(dc.font.set) {
       +                XFontSetExtents *font_extents;
       +                XFontStruct **xfonts;
       +                char **font_names;
       +                dc.font.ascent = dc.font.descent = 0;
       +                font_extents = XExtentsOfFontSet(dc.font.set);
       +                n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
       +                for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
       +                        if(dc.font.ascent < (*xfonts)->ascent)
       +                                dc.font.ascent = (*xfonts)->ascent;
       +                        if(dc.font.descent < (*xfonts)->descent)
       +                                dc.font.descent = (*xfonts)->descent;
       +                        xfonts++;
       +                }
       +        }
       +        else {
       +                if(dc.font.xfont)
       +                        XFreeFont(dpy, dc.font.xfont);
       +                dc.font.xfont = NULL;
       +                if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
       +                || !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
       +                        eprint("error, cannot load font: '%s'\n", fontstr);
       +                dc.font.ascent = dc.font.xfont->ascent;
       +                dc.font.descent = dc.font.xfont->descent;
       +        }
       +        dc.font.height = dc.font.ascent + dc.font.descent;
       +}
       +
       +static Bool
       +isoccupied(unsigned int t) {
       +        Client *c;
       +
       +        for(c = clients; c; c = c->next)
       +                if(c->tags[t])
       +                        return True;
       +        return False;
       +}
       +
       +static unsigned int
       +textnw(const char *text, unsigned int len) {
       +        XRectangle r;
       +
       +        if(dc.font.set) {
       +                XmbTextExtents(dc.font.set, text, len, NULL, &r);
       +                return r.width;
       +        }
       +        return XTextWidth(dc.font.xfont, text, len);
       +}
       +
       +static void
       +drawtext(const char *text, unsigned long col[ColLast]) {
       +        int x, y, w, h;
       +        static char buf[256];
       +        unsigned int len, olen;
       +        XRectangle r = { dc.x, dc.y, dc.w, dc.h };
       +
       +        XSetForeground(dpy, dc.gc, col[ColBG]);
       +        XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
       +        if(!text)
       +                return;
       +        w = 0;
       +        olen = len = strlen(text);
       +        if(len >= sizeof buf)
       +                len = sizeof buf - 1;
       +        memcpy(buf, text, len);
       +        buf[len] = 0;
       +        h = dc.font.ascent + dc.font.descent;
       +        y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
       +        x = dc.x + (h / 2);
       +        /* shorten text if necessary */
       +        while(len && (w = textnw(buf, len)) > dc.w - h)
       +                buf[--len] = 0;
       +        if(len < olen) {
       +                if(len > 1)
       +                        buf[len - 1] = '.';
       +                if(len > 2)
       +                        buf[len - 2] = '.';
       +                if(len > 3)
       +                        buf[len - 3] = '.';
       +        }
       +        if(w > dc.w)
       +                return; /* too long */
       +        XSetForeground(dpy, dc.gc, col[ColFG]);
       +        if(dc.font.set)
       +                XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
       +        else
       +                XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
       +}
       +
       +static void
       +drawbar(void) {
       +        int i, x;
       +
       +        dc.x = dc.y = 0;
       +        for(i = 0; i < ntags; i++) {
       +                dc.w = textw(tags[i]);
       +                if(seltags[i]) {
       +                        drawtext(tags[i], dc.sel);
       +                        drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel);
       +                }
       +                else {
       +                        drawtext(tags[i], dc.norm);
       +                        drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm);
       +                }
       +                dc.x += dc.w;
       +        }
       +        dc.w = blw;
       +        drawtext(layouts[ltidx].symbol, dc.norm);
       +        x = dc.x + dc.w;
       +        dc.w = textw(stext);
       +        dc.x = sw - dc.w;
       +        if(dc.x < x) {
       +                dc.x = x;
       +                dc.w = sw - x;
       +        }
       +        drawtext(stext, dc.norm);
       +        if((dc.w = dc.x - x) > bh) {
       +                dc.x = x;
       +                if(sel) {
       +                        drawtext(sel->name, dc.sel);
       +                        drawsquare(sel->ismax, sel->isfloating, dc.sel);
       +                }
       +                else
       +                        drawtext(NULL, dc.norm);
       +        }
       +        XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
       +        XSync(dpy, False);
       +}
       +
       +static void
       +initstyle(void) {
       +        dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR);
       +        dc.norm[ColBG] = initcolor(NORMBGCOLOR);
       +        dc.norm[ColFG] = initcolor(NORMFGCOLOR);
       +        dc.sel[ColBorder] = initcolor(SELBORDERCOLOR);
       +        dc.sel[ColBG] = initcolor(SELBGCOLOR);
       +        dc.sel[ColFG] = initcolor(SELFGCOLOR);
       +        initfont(FONT);
       +        dc.h = bh = dc.font.height + 2;
       +}
       +
       +static void
       +initbar(void) {
       +        XSetWindowAttributes wa;
       +
       +        wa.override_redirect = 1;
       +        wa.background_pixmap = ParentRelative;
       +        wa.event_mask = ButtonPressMask | ExposureMask;
       +        barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0,
       +                        DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
       +                        CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
       +        XDefineCursor(dpy, barwin, cursor[CurNormal]);
       +        updatebarpos();
       +        XMapRaised(dpy, barwin);
       +        strcpy(stext, "dwm-"VERSION);
       +        dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
       +        dc.gc = XCreateGC(dpy, root, 0, 0);
       +        XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
       +        if(!dc.font.set)
       +                XSetFont(dpy, dc.gc, dc.font.xfont->fid);
       +}
       +
       +static unsigned int
       +textw(const char *text) {
       +        return textnw(text, strlen(text)) + dc.font.height;
       +}
       +
       +static void
       +togglebar(const char *arg) {
       +        if(bpos == BarOff)
       +                bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
       +        else
       +                bpos = BarOff;
       +        updatebarpos();
       +        arrange();
       +}
       +
       +static void
       +updatebarpos(void) {
       +        XEvent ev;
       +
       +        wax = sx;
       +        way = sy;
       +        wah = sh;
       +        waw = sw;
       +        switch(bpos) {
       +        default:
       +                wah -= bh;
       +                way += bh;
       +                XMoveWindow(dpy, barwin, sx, sy);
       +                break;
       +        case BarBot:
       +                wah -= bh;
       +                XMoveWindow(dpy, barwin, sx, sy + wah);
       +                break;
       +        case BarOff:
       +                XMoveWindow(dpy, barwin, sx, sy - bh);
       +                break;
       +        }
       +        XSync(dpy, False);
       +        while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
       +}
       +
       +static void
       +attachstack(Client *c) {
       +        c->snext = stack;
       +        stack = c;
       +}
       +
       +static void
       +detachstack(Client *c) {
       +        Client **tc;
       +
       +        for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
       +        *tc = c->snext;
       +}
       +
       +static void
       +grabbuttons(Client *c, Bool focused) {
       +        XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
       +
       +        if(focused) {
       +                XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +                XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +                XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +                XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +
       +                XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +                XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +                XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +                XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +
       +                XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +                XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +                XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +                XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +        }
       +        else
       +                XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
       +                                GrabModeAsync, GrabModeSync, None, None);
       +}
       +
       +static Bool
       +isprotodel(Client *c) {
       +        int i, n;
       +        Atom *protocols;
       +        Bool ret = False;
       +
       +        if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
       +                for(i = 0; !ret && i < n; i++)
       +                        if(protocols[i] == wmatom[WMDelete])
       +                                ret = True;
       +                XFree(protocols);
       +        }
       +        return ret;
       +}
       +
       +static void
       +setclientstate(Client *c, long state) {
       +        long data[] = {state, None};
       +
       +        XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
       +                        PropModeReplace, (unsigned char *)data, 2);
       +}
       +
       +static int
       +xerrordummy(Display *dsply, XErrorEvent *ee) {
       +        return 0;
       +}
       +
       +static void
       +ban(Client *c) {
       +        if(c->isbanned)
       +                return;
       +        XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
       +        c->isbanned = True;
       +}
       +
       +static void
       +configure(Client *c) {
       +        XConfigureEvent ce;
       +
       +        ce.type = ConfigureNotify;
       +        ce.display = dpy;
       +        ce.event = c->win;
       +        ce.window = c->win;
       +        ce.x = c->x;
       +        ce.y = c->y;
       +        ce.width = c->w;
       +        ce.height = c->h;
       +        ce.border_width = c->border;
       +        ce.above = None;
       +        ce.override_redirect = False;
       +        XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
       +}
       +
       +static void
       +killclient(const char *arg) {
       +        XEvent ev;
       +
       +        if(!sel)
       +                return;
       +        if(isprotodel(sel)) {
       +                ev.type = ClientMessage;
       +                ev.xclient.window = sel->win;
       +                ev.xclient.message_type = wmatom[WMProtocols];
       +                ev.xclient.format = 32;
       +                ev.xclient.data.l[0] = wmatom[WMDelete];
       +                ev.xclient.data.l[1] = CurrentTime;
       +                XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
       +        }
       +        else
       +                XKillClient(dpy, sel->win);
       +}
       +
       +static void
       +manage(Window w, XWindowAttributes *wa) {
       +        unsigned int i;
       +        Client *c, *t = NULL;
       +        Window trans;
       +        Status rettrans;
       +        XWindowChanges wc;
       +
       +        c = emallocz(sizeof(Client));
       +        c->tags = emallocz(ntags * sizeof(Bool));
       +        c->win = w;
       +        c->x = wa->x;
       +        c->y = wa->y;
       +        c->w = wa->width;
       +        c->h = wa->height;
       +        c->oldborder = wa->border_width;
       +        if(c->w == sw && c->h == sh) {
       +                c->x = sx;
       +                c->y = sy;
       +                c->border = wa->border_width;
       +        }
       +        else {
       +                if(c->x + c->w + 2 * c->border > wax + waw)
       +                        c->x = wax + waw - c->w - 2 * c->border;
       +                if(c->y + c->h + 2 * c->border > way + wah)
       +                        c->y = way + wah - c->h - 2 * c->border;
       +                if(c->x < wax)
       +                        c->x = wax;
       +                if(c->y < way)
       +                        c->y = way;
       +                c->border = BORDERPX;
       +        }
       +        wc.border_width = c->border;
       +        XConfigureWindow(dpy, w, CWBorderWidth, &wc);
       +        XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
       +        configure(c); /* propagates border_width, if size doesn't change */
       +        updatesizehints(c);
       +        XSelectInput(dpy, w,
       +                StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
       +        grabbuttons(c, False);
       +        updatetitle(c);
       +        if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
       +                for(t = clients; t && t->win != trans; t = t->next);
       +        if(t)
       +                for(i = 0; i < ntags; i++)
       +                        c->tags[i] = t->tags[i];
       +        applyrules(c);
       +        if(!c->isfloating)
       +                c->isfloating = (rettrans == Success) || c->isfixed;
       +        attach(c);
       +        attachstack(c);
       +        XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
       +        ban(c);
       +        XMapWindow(dpy, c->win);
       +        setclientstate(c, NormalState);
       +        arrange();
       +}
       +
       +static void
       +resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
       +        double dx, dy, max, min, ratio;
       +        XWindowChanges wc; 
       +
       +        if(sizehints) {
       +                if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) {
       +                        dx = (double)(w - c->basew);
       +                        dy = (double)(h - c->baseh);
       +                        min = (double)(c->minax) / (double)(c->minay);
       +                        max = (double)(c->maxax) / (double)(c->maxay);
       +                        ratio = dx / dy;
       +                        if(max > 0 && min > 0 && ratio > 0) {
       +                                if(ratio < min) {
       +                                        dy = (dx * min + dy) / (min * min + 1);
       +                                        dx = dy * min;
       +                                        w = (int)dx + c->basew;
       +                                        h = (int)dy + c->baseh;
       +                                }
       +                                else if(ratio > max) {
       +                                        dy = (dx * min + dy) / (max * max + 1);
       +                                        dx = dy * min;
       +                                        w = (int)dx + c->basew;
       +                                        h = (int)dy + c->baseh;
       +                                }
       +                        }
       +                }
       +                if(c->minw && w < c->minw)
       +                        w = c->minw;
       +                if(c->minh && h < c->minh)
       +                        h = c->minh;
       +                if(c->maxw && w > c->maxw)
       +                        w = c->maxw;
       +                if(c->maxh && h > c->maxh)
       +                        h = c->maxh;
       +                if(c->incw)
       +                        w -= (w - c->basew) % c->incw;
       +                if(c->inch)
       +                        h -= (h - c->baseh) % c->inch;
       +        }
       +        if(w <= 0 || h <= 0)
       +                return;
       +        /* offscreen appearance fixes */
       +        if(x > sw)
       +                x = sw - w - 2 * c->border;
       +        if(y > sh)
       +                y = sh - h - 2 * c->border;
       +        if(x + w + 2 * c->border < sx)
       +                x = sx;
       +        if(y + h + 2 * c->border < sy)
       +                y = sy;
       +        if(c->x != x || c->y != y || c->w != w || c->h != h) {
       +                c->x = wc.x = x;
       +                c->y = wc.y = y;
       +                c->w = wc.width = w;
       +                c->h = wc.height = h;
       +                wc.border_width = c->border;
       +                XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
       +                configure(c);
       +                XSync(dpy, False);
       +        }
       +}
       +
       +static void
       +unban(Client *c) {
       +        if(!c->isbanned)
       +                return;
       +        XMoveWindow(dpy, c->win, c->x, c->y);
       +        c->isbanned = False;
       +}
       +
       +static void
       +unmanage(Client *c) {
       +        XWindowChanges wc;
       +
       +        wc.border_width = c->oldborder;
       +        /* The server grab construct avoids race conditions. */
       +        XGrabServer(dpy);
       +        XSetErrorHandler(xerrordummy);
       +        XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
       +        detach(c);
       +        detachstack(c);
       +        if(sel == c)
       +                focus(NULL);
       +        XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
       +        setclientstate(c, WithdrawnState);
       +        free(c->tags);
       +        free(c);
       +        XSync(dpy, False);
       +        XSetErrorHandler(xerror);
       +        XUngrabServer(dpy);
       +        arrange();
       +}
       +
       +static void
       +updatesizehints(Client *c) {
       +        long msize;
       +        XSizeHints size;
       +
       +        if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
       +                size.flags = PSize;
       +        c->flags = size.flags;
       +        if(c->flags & PBaseSize) {
       +                c->basew = size.base_width;
       +                c->baseh = size.base_height;
       +        }
       +        else if(c->flags & PMinSize) {
       +                c->basew = size.min_width;
       +                c->baseh = size.min_height;
       +        }
       +        else
       +                c->basew = c->baseh = 0;
       +        if(c->flags & PResizeInc) {
       +                c->incw = size.width_inc;
       +                c->inch = size.height_inc;
       +        }
       +        else
       +                c->incw = c->inch = 0;
       +        if(c->flags & PMaxSize) {
       +                c->maxw = size.max_width;
       +                c->maxh = size.max_height;
       +        }
       +        else
       +                c->maxw = c->maxh = 0;
       +        if(c->flags & PMinSize) {
       +                c->minw = size.min_width;
       +                c->minh = size.min_height;
       +        }
       +        else if(c->flags & PBaseSize) {
       +                c->minw = size.base_width;
       +                c->minh = size.base_height;
       +        }
       +        else
       +                c->minw = c->minh = 0;
       +        if(c->flags & PAspect) {
       +                c->minax = size.min_aspect.x;
       +                c->maxax = size.max_aspect.x;
       +                c->minay = size.min_aspect.y;
       +                c->maxay = size.max_aspect.y;
       +        }
       +        else
       +                c->minax = c->maxax = c->minay = c->maxay = 0;
       +        c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
       +                        && c->maxw == c->minw && c->maxh == c->minh);
       +}
       +
       +static void
       +updatetitle(Client *c) {
       +        if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
       +                gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
       +}
       +
       +static Client *
       +getclient(Window w) {
       +        Client *c;
       +
       +        for(c = clients; c && c->win != w; c = c->next);
       +        return c;
       +}
       +
       +static void
       +movemouse(Client *c) {
       +        int x1, y1, ocx, ocy, di, nx, ny;
       +        unsigned int dui;
       +        Window dummy;
       +        XEvent ev;
       +
       +        ocx = nx = c->x;
       +        ocy = ny = c->y;
       +        if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
       +                        None, cursor[CurMove], CurrentTime) != GrabSuccess)
       +                return;
       +        c->ismax = False;
       +        XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
       +        for(;;) {
       +                XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
       +                switch (ev.type) {
       +                case ButtonRelease:
       +                        XUngrabPointer(dpy, CurrentTime);
       +                        return;
       +                case ConfigureRequest:
       +                case Expose:
       +                case MapRequest:
       +                        handler[ev.type](&ev);
       +                        break;
       +                case MotionNotify:
       +                        XSync(dpy, False);
       +                        nx = ocx + (ev.xmotion.x - x1);
       +                        ny = ocy + (ev.xmotion.y - y1);
       +                        if(abs(wax + nx) < SNAP)
       +                                nx = wax;
       +                        else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP)
       +                                nx = wax + waw - c->w - 2 * c->border;
       +                        if(abs(way - ny) < SNAP)
       +                                ny = way;
       +                        else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP)
       +                                ny = way + wah - c->h - 2 * c->border;
       +                        resize(c, nx, ny, c->w, c->h, False);
       +                        break;
       +                }
       +        }
       +}
       +
       +static void
       +resizemouse(Client *c) {
       +        int ocx, ocy;
       +        int nw, nh;
       +        XEvent ev;
       +
       +        ocx = c->x;
       +        ocy = c->y;
       +        if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
       +                        None, cursor[CurResize], CurrentTime) != GrabSuccess)
       +                return;
       +        c->ismax = False;
       +        XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
       +        for(;;) {
       +                XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
       +                switch(ev.type) {
       +                case ButtonRelease:
       +                        XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
       +                                        c->w + c->border - 1, c->h + c->border - 1);
       +                        XUngrabPointer(dpy, CurrentTime);
       +                        while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
       +                        return;
       +                case ConfigureRequest:
       +                case Expose:
       +                case MapRequest:
       +                        handler[ev.type](&ev);
       +                        break;
       +                case MotionNotify:
       +                        XSync(dpy, False);
       +                        if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
       +                                nw = 1;
       +                        if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
       +                                nh = 1;
       +                        resize(c, c->x, c->y, nw, nh, True);
       +                        break;
       +                }
       +        }
       +}
       +
       +static void
       +buttonpress(XEvent *e) {
       +        unsigned int i, x;
       +        Client *c;
       +        XButtonPressedEvent *ev = &e->xbutton;
       +
       +        if(barwin == ev->window) {
       +                x = 0;
       +                for(i = 0; i < ntags; i++) {
       +                        x += textw(tags[i]);
       +                        if(ev->x < x) {
       +                                if(ev->button == Button1) {
       +                                        if(ev->state & MODKEY)
       +                                                tag(tags[i]);
       +                                        else
       +                                                view(tags[i]);
       +                                }
       +                                else if(ev->button == Button3) {
       +                                        if(ev->state & MODKEY)
       +                                                toggletag(tags[i]);
       +                                        else
       +                                                toggleview(tags[i]);
       +                                }
       +                                return;
       +                        }
       +                }
       +                if((ev->x < x + blw) && ev->button == Button1)
       +                        setlayout(NULL);
       +        }
       +        else if((c = getclient(ev->window))) {
       +                focus(c);
       +                if(CLEANMASK(ev->state) != MODKEY)
       +                        return;
       +                if(ev->button == Button1 && (isfloating() || c->isfloating)) {
       +                        restack();
       +                        movemouse(c);
       +                }
       +                else if(ev->button == Button2)
       +                        zoom(NULL);
       +                else if(ev->button == Button3
       +                && (isfloating() || c->isfloating) && !c->isfixed)
       +                {
       +                        restack();
       +                        resizemouse(c);
       +                }
       +        }
       +}
       +
       +static void
       +configurerequest(XEvent *e) {
       +        Client *c;
       +        XConfigureRequestEvent *ev = &e->xconfigurerequest;
       +        XWindowChanges wc;
       +
       +        if((c = getclient(ev->window))) {
       +                c->ismax = False;
       +                if(ev->value_mask & CWBorderWidth)
       +                        c->border = ev->border_width;
       +                if(c->isfixed || c->isfloating || isfloating()) {
       +                        if(ev->value_mask & CWX)
       +                                c->x = ev->x;
       +                        if(ev->value_mask & CWY)
       +                                c->y = ev->y;
       +                        if(ev->value_mask & CWWidth)
       +                                c->w = ev->width;
       +                        if(ev->value_mask & CWHeight)
       +                                c->h = ev->height;
       +                        if((c->x + c->w) > sw && c->isfloating)
       +                                c->x = sw / 2 - c->w / 2; /* center in x direction */
       +                        if((c->y + c->h) > sh && c->isfloating)
       +                                c->y = sh / 2 - c->h / 2; /* center in y direction */
       +                        if((ev->value_mask & (CWX | CWY))
       +                        && !(ev->value_mask & (CWWidth | CWHeight)))
       +                                configure(c);
       +                        if(isvisible(c))
       +                                XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
       +                }
       +                else
       +                        configure(c);
       +        }
       +        else {
       +                wc.x = ev->x;
       +                wc.y = ev->y;
       +                wc.width = ev->width;
       +                wc.height = ev->height;
       +                wc.border_width = ev->border_width;
       +                wc.sibling = ev->above;
       +                wc.stack_mode = ev->detail;
       +                XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
       +        }
       +        XSync(dpy, False);
       +}
       +
       +static void
       +configurenotify(XEvent *e) {
       +        XConfigureEvent *ev = &e->xconfigure;
       +
       +        if (ev->window == root && (ev->width != sw || ev->height != sh)) {
       +                sw = ev->width;
       +                sh = ev->height;
       +                XFreePixmap(dpy, dc.drawable);
       +                dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
       +                XResizeWindow(dpy, barwin, sw, bh);
       +                updatebarpos();
       +                arrange();
       +        }
       +}
       +
       +static void
       +destroynotify(XEvent *e) {
       +        Client *c;
       +        XDestroyWindowEvent *ev = &e->xdestroywindow;
       +
       +        if((c = getclient(ev->window)))
       +                unmanage(c);
       +}
       +
       +static void
       +enternotify(XEvent *e) {
       +        Client *c;
       +        XCrossingEvent *ev = &e->xcrossing;
       +
       +        if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
       +                return;
       +        if((c = getclient(ev->window)))
       +                focus(c);
       +        else if(ev->window == root) {
       +                selscreen = True;
       +                focus(NULL);
       +        }
       +}
       +
       +static void
       +expose(XEvent *e) {
       +        XExposeEvent *ev = &e->xexpose;
       +
       +        if(ev->count == 0) {
       +                if(barwin == ev->window)
       +                        drawbar();
       +        }
       +}
       +
       +static void
       +keypress(XEvent *e) {
       +        KEYS
       +        unsigned int len = sizeof keys / sizeof keys[0];
       +        unsigned int i;
       +        KeySym keysym;
       +        XKeyEvent *ev = &e->xkey;
       +
       +        keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
       +        for(i = 0; i < len; i++)
       +                if(keysym == keys[i].keysym
       +                && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
       +                {
       +                        if(keys[i].func)
       +                                keys[i].func(keys[i].arg);
       +                }
       +}
       +
       +static void
       +leavenotify(XEvent *e) {
       +        XCrossingEvent *ev = &e->xcrossing;
       +
       +        if((ev->window == root) && !ev->same_screen) {
       +                selscreen = False;
       +                focus(NULL);
       +        }
       +}
       +
       +static void
       +mappingnotify(XEvent *e) {
       +        XMappingEvent *ev = &e->xmapping;
       +
       +        XRefreshKeyboardMapping(ev);
       +        if(ev->request == MappingKeyboard)
       +                grabkeys();
       +}
       +
       +static void
       +maprequest(XEvent *e) {
       +        static XWindowAttributes wa;
       +        XMapRequestEvent *ev = &e->xmaprequest;
       +
       +        if(!XGetWindowAttributes(dpy, ev->window, &wa))
       +                return;
       +        if(wa.override_redirect)
       +                return;
       +        if(!getclient(ev->window))
       +                manage(ev->window, &wa);
       +}
       +
       +static void
       +propertynotify(XEvent *e) {
       +        Client *c;
       +        Window trans;
       +        XPropertyEvent *ev = &e->xproperty;
       +
       +        if(ev->state == PropertyDelete)
       +                return; /* ignore */
       +        if((c = getclient(ev->window))) {
       +                switch (ev->atom) {
       +                        default: break;
       +                        case XA_WM_TRANSIENT_FOR:
       +                                XGetTransientForHint(dpy, c->win, &trans);
       +                                if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
       +                                        arrange();
       +                                break;
       +                        case XA_WM_NORMAL_HINTS:
       +                                updatesizehints(c);
       +                                break;
       +                }
       +                if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
       +                        updatetitle(c);
       +                        if(c == sel)
       +                                drawbar();
       +                }
       +        }
       +}
       +
       +static void
       +unmapnotify(XEvent *e) {
       +        Client *c;
       +        XUnmapEvent *ev = &e->xunmap;
       +
       +        if((c = getclient(ev->window)))
       +                unmanage(c);
       +}
       +
       +static void
       +grabkeys(void) {
       +        KEYS
       +        unsigned int len = sizeof keys / sizeof keys[0];
       +        unsigned int i;
       +        KeyCode code;
       +
       +        XUngrabKey(dpy, AnyKey, AnyModifier, root);
       +        for(i = 0; i < len; i++) {
       +                code = XKeysymToKeycode(dpy, keys[i].keysym);
       +                XGrabKey(dpy, code, keys[i].mod, root, True,
       +                                GrabModeAsync, GrabModeAsync);
       +                XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
       +                                GrabModeAsync, GrabModeAsync);
       +                XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
       +                                GrabModeAsync, GrabModeAsync);
       +                XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
       +                                GrabModeAsync, GrabModeAsync);
       +        }
       +}
       +
       +static unsigned int
       +idxoftag(const char *tag) {
       +        unsigned int i;
       +
       +        for(i = 0; i < ntags; i++)
       +                if(tags[i] == tag)
       +                        return i;
       +        return 0;
       +}
       +
       +static void
       +floating(void) { /* default floating layout */
       +        Client *c;
       +
       +        for(c = clients; c; c = c->next)
       +                if(isvisible(c))
       +                        resize(c, c->x, c->y, c->w, c->h, True);
       +}
       +
       +static void
       +applyrules(Client *c) {
       +        static char buf[512];
       +        unsigned int i, j;
       +        regmatch_t tmp;
       +        Bool matched = False;
       +        XClassHint ch = { 0 };
       +
       +        /* rule matching */
       +        XGetClassHint(dpy, c->win, &ch);
       +        snprintf(buf, sizeof buf, "%s:%s:%s",
       +                        ch.res_class ? ch.res_class : "",
       +                        ch.res_name ? ch.res_name : "", c->name);
       +        for(i = 0; i < nrules; i++)
       +                if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
       +                        c->isfloating = rules[i].isfloating;
       +                        for(j = 0; regs[i].tagregex && j < ntags; j++) {
       +                                if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
       +                                        matched = True;
       +                                        c->tags[j] = True;
       +                                }
       +                        }
       +                }
       +        if(ch.res_class)
       +                XFree(ch.res_class);
       +        if(ch.res_name)
       +                XFree(ch.res_name);
       +        if(!matched)
       +                for(i = 0; i < ntags; i++)
       +                        c->tags[i] = seltags[i];
       +}
       +
       +static void
       +compileregs(void) {
       +        unsigned int i;
       +        regex_t *reg;
       +
       +        if(regs)
       +                return;
       +        nrules = sizeof rules / sizeof rules[0];
       +        regs = emallocz(nrules * sizeof(Regs));
       +        for(i = 0; i < nrules; i++) {
       +                if(rules[i].prop) {
       +                        reg = emallocz(sizeof(regex_t));
       +                        if(regcomp(reg, rules[i].prop, REG_EXTENDED))
       +                                free(reg);
       +                        else
       +                                regs[i].propregex = reg;
       +                }
       +                if(rules[i].tags) {
       +                        reg = emallocz(sizeof(regex_t));
       +                        if(regcomp(reg, rules[i].tags, REG_EXTENDED))
       +                                free(reg);
       +                        else
       +                                regs[i].tagregex = reg;
       +                }
       +        }
       +}
       +
       +static void
       +focusnext(const char *arg) {
       +        Client *c;
       +
       +        if(!sel)
       +                return;
       +        for(c = sel->next; c && !isvisible(c); c = c->next);
       +        if(!c)
       +                for(c = clients; c && !isvisible(c); c = c->next);
       +        if(c) {
       +                focus(c);
       +                restack();
       +        }
       +}
       +
       +static void
       +focusprev(const char *arg) {
       +        Client *c;
       +
       +        if(!sel)
       +                return;
       +        for(c = sel->prev; c && !isvisible(c); c = c->prev);
       +        if(!c) {
       +                for(c = clients; c && c->next; c = c->next);
       +                for(; c && !isvisible(c); c = c->prev);
       +        }
       +        if(c) {
       +                focus(c);
       +                restack();
       +        }
       +}
       +
       +static void
       +initlayouts(void) {
       +        unsigned int i, w;
       +
       +        nlayouts = sizeof layouts / sizeof layouts[0];
       +        for(blw = i = 0; i < nlayouts; i++) {
       +                w = textw(layouts[i].symbol);
       +                if(w > blw)
       +                        blw = w;
       +        }
       +}
       +
       +static Bool
       +isfloating(void) {
       +        return layouts[ltidx].arrange == floating;
       +}
       +
       +static Bool
       +isvisible(Client *c) {
       +        unsigned int i;
       +
       +        for(i = 0; i < ntags; i++)
       +                if(c->tags[i] && seltags[i])
       +                        return True;
       +        return False;
       +}
       +
       +static void
       +restack(void) {
       +        Client *c;
       +        XEvent ev;
       +        XWindowChanges wc;
       +
       +        drawbar();
       +        if(!sel)
       +                return;
       +        if(sel->isfloating || isfloating())
       +                XRaiseWindow(dpy, sel->win);
       +        if(!isfloating()) {
       +                wc.stack_mode = Below;
       +                wc.sibling = barwin;
       +                if(!sel->isfloating) {
       +                        XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
       +                        wc.sibling = sel->win;
       +                }
       +                for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
       +                        if(c == sel)
       +                                continue;
       +                        XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
       +                        wc.sibling = c->win;
       +                }
       +        }
       +        XSync(dpy, False);
       +        while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
       +}
       +
       +static void
       +setlayout(const char *arg) {
       +        unsigned int i;
       +
       +        if(!arg) {
       +                if(++ltidx == nlayouts)
       +                        ltidx = 0;;
       +        }
       +        else {
       +                for(i = 0; i < nlayouts; i++)
       +                        if(!strcmp(arg, layouts[i].symbol))
       +                                break;
       +                if(i == nlayouts)
       +                        return;
       +                ltidx = i;
       +        }
       +        if(sel)
       +                arrange();
       +        else
       +                drawbar();
       +}
       +
       +static void
       +tag(const char *arg) {
       +        unsigned int i;
       +
       +        if(!sel)
       +                return;
       +        for(i = 0; i < ntags; i++)
       +                sel->tags[i] = arg == NULL;
       +        i = idxoftag(arg);
       +        if(i >= 0 && i < ntags)
       +                sel->tags[i] = True;
       +        arrange();
       +}
       +
       +static void
       +togglefloating(const char *arg) {
       +        if(!sel)
       +                return;
       +        sel->isfloating = !sel->isfloating;
       +        if(sel->isfloating)
       +                resize(sel, sel->x, sel->y, sel->w, sel->h, True);
       +        arrange();
       +}
       +
       +static void
       +togglemax(const char *arg) {
       +        XEvent ev;
       +
       +        if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed)
       +                return;
       +        if((sel->ismax = !sel->ismax)) {
       +                sel->rx = sel->x;
       +                sel->ry = sel->y;
       +                sel->rw = sel->w;
       +                sel->rh = sel->h;
       +                resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
       +        }
       +        else
       +                resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
       +        drawbar();
       +        while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
       +}
       +
       +static void
       +toggletag(const char *arg) {
       +        unsigned int i, j;
       +
       +        if(!sel)
       +                return;
       +        i = idxoftag(arg);
       +        sel->tags[i] = !sel->tags[i];
       +        for(j = 0; j < ntags && !sel->tags[j]; j++);
       +        if(j == ntags)
       +                sel->tags[i] = True;
       +        arrange();
       +}
       +
       +static void
       +toggleview(const char *arg) {
       +        unsigned int i, j;
       +
       +        i = idxoftag(arg);
       +        seltags[i] = !seltags[i];
       +        for(j = 0; j < ntags && !seltags[j]; j++);
       +        if(j == ntags)
       +                seltags[i] = True; /* cannot toggle last view */
       +        arrange();
       +}
       +
       +static void
       +view(const char *arg) {
       +        unsigned int i;
       +
       +        for(i = 0; i < ntags; i++)
       +                seltags[i] = arg == NULL;
       +        i = idxoftag(arg);
       +        if(i >= 0 && i < ntags)
       +                seltags[i] = True;
       +        arrange();
       +}
       +
       +static void
       +cleanup(void) {
       +        close(STDIN_FILENO);
       +        while(stack) {
       +                unban(stack);
       +                unmanage(stack);
       +        }
       +        if(dc.font.set)
       +                XFreeFontSet(dpy, dc.font.set);
       +        else
       +                XFreeFont(dpy, dc.font.xfont);
       +        XUngrabKey(dpy, AnyKey, AnyModifier, root);
       +        XFreePixmap(dpy, dc.drawable);
       +        XFreeGC(dpy, dc.gc);
       +        XDestroyWindow(dpy, barwin);
       +        XFreeCursor(dpy, cursor[CurNormal]);
       +        XFreeCursor(dpy, cursor[CurResize]);
       +        XFreeCursor(dpy, cursor[CurMove]);
       +        XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
       +        XSync(dpy, False);
       +        free(seltags);
       +}
       +
       +static long
       +getstate(Window w) {
       +        int format, status;
       +        long result = -1;
       +        unsigned char *p = NULL;
       +        unsigned long n, extra;
       +        Atom real;
       +
       +        status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
       +                        &real, &format, &n, &extra, (unsigned char **)&p);
       +        if(status != Success)
       +                return -1;
       +        if(n != 0)
       +                result = *p;
       +        XFree(p);
       +        return result;
       +}
       +
       +static void
       +scan(void) {
       +        unsigned int i, num;
       +        Window *wins, d1, d2;
       +        XWindowAttributes wa;
       +
       +        wins = NULL;
       +        if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
       +                for(i = 0; i < num; i++) {
       +                        if(!XGetWindowAttributes(dpy, wins[i], &wa)
       +                        || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
       +                                continue;
       +                        if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
       +                                manage(wins[i], &wa);
       +                }
       +                for(i = 0; i < num; i++) { /* now the transients */
       +                        if(!XGetWindowAttributes(dpy, wins[i], &wa))
       +                                continue;
       +                        if(XGetTransientForHint(dpy, wins[i], &d1)
       +                        && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
       +                                manage(wins[i], &wa);
       +                }
       +        }
       +        if(wins)
       +                XFree(wins);
       +}
       +
       +static void
       +setup(void) {
       +        int i, j;
       +        unsigned int mask;
       +        Window w;
       +        XModifierKeymap *modmap;
       +        XSetWindowAttributes wa;
       +
       +        /* init atoms */
       +        wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
       +        wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
       +        wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
       +        wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
       +        netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
       +        netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
       +        XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
       +                        PropModeReplace, (unsigned char *) netatom, NetLast);
       +        /* init cursors */
       +        cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
       +        cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
       +        cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
       +        /* init modifier map */
       +        modmap = XGetModifierMapping(dpy);
       +        for (i = 0; i < 8; i++)
       +                for (j = 0; j < modmap->max_keypermod; j++) {
       +                        if(modmap->modifiermap[i * modmap->max_keypermod + j]
       +                                        == XKeysymToKeycode(dpy, XK_Num_Lock))
       +                                numlockmask = (1 << i);
       +                }
       +        XFreeModifiermap(modmap);
       +        /* select for events */
       +        wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
       +                | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
       +        wa.cursor = cursor[CurNormal];
       +        XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
       +        XSelectInput(dpy, root, wa.event_mask);
       +        grabkeys();
       +        compileregs();
       +        for(ntags = 0; tags[ntags]; ntags++);
       +        seltags = emallocz(sizeof(Bool) * ntags);
       +        seltags[0] = True;
       +        /* geometry */
       +        sx = sy = 0;
       +        sw = DisplayWidth(dpy, screen);
       +        sh = DisplayHeight(dpy, screen);
       +        initstyle();
       +        initlayouts();
       +        initbar();
       +        /* multihead support */
       +        selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
       +}
       +
       +/*
       + * Startup Error handler to check if another window manager
       + * is already running.
       + */
       +static int
       +xerrorstart(Display *dsply, XErrorEvent *ee) {
       +        otherwm = True;
       +        return -1;
       +}
       +
       +static Bool
       +gettextprop(Window w, Atom atom, char *text, unsigned int size) {
       +        char **list = NULL;
       +        int n;
       +        XTextProperty name;
       +
       +        if(!text || size == 0)
       +                return False;
       +        text[0] = '\0';
       +        XGetTextProperty(dpy, w, &name, atom);
       +        if(!name.nitems)
       +                return False;
       +        if(name.encoding == XA_STRING)
       +                strncpy(text, (char *)name.value, size - 1);
       +        else {
       +                if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
       +                && n > 0 && *list)
       +                {
       +                        strncpy(text, *list, size - 1);
       +                        XFreeStringList(list);
       +                }
       +        }
       +        text[size - 1] = '\0';
       +        XFree(name.value);
       +        return True;
       +}
       +
       +static void
       +quit(const char *arg) {
       +        readin = running = False;
       +}
       +
       +/* There's no way to check accesses to destroyed windows, thus those cases are
       + * ignored (especially on UnmapNotify's).  Other types of errors call Xlibs
       + * default error handler, which may call exit.
       + */
       +static int
       +xerror(Display *dpy, XErrorEvent *ee) {
       +        if(ee->error_code == BadWindow
       +        || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
       +        || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
       +        || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
       +        || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
       +        || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
       +        || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
       +        || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
       +                return 0;
       +        fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
       +                ee->request_code, ee->error_code);
       +        return xerrorxlib(dpy, ee); /* may call exit */
       +}
       +
       +static void
       +arrange(void) {
       +        Client *c;
       +
       +        for(c = clients; c; c = c->next)
       +                if(isvisible(c))
       +                        unban(c);
       +                else
       +                        ban(c);
       +        layouts[ltidx].arrange();
       +        focus(NULL);
       +        restack();
       +}
       +
       +static void
       +attach(Client *c) {
       +        if(clients)
       +                clients->prev = c;
       +        c->next = clients;
       +        clients = c;
       +}
       +
       +static void
       +detach(Client *c) {
       +        if(c->prev)
       +                c->prev->next = c->next;
       +        if(c->next)
       +                c->next->prev = c->prev;
       +        if(c == clients)
       +                clients = c->next;
       +        c->next = c->prev = NULL;
       +}
       +
       +static void
       +focus(Client *c) {
       +        if((!c && selscreen) || (c && !isvisible(c)))
       +                for(c = stack; c && !isvisible(c); c = c->snext);
       +        if(sel && sel != c) {
       +                grabbuttons(sel, False);
       +                XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
       +        }
       +        if(c) {
       +                detachstack(c);
       +                attachstack(c);
       +                grabbuttons(c, True);
       +        }
       +        sel = c;
       +        drawbar();
       +        if(!selscreen)
       +                return;
       +        if(c) {
       +                XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
       +                XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
       +        }
       +        else
       +                XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
       +}
       +
       +static Bool
       +isarrange(void (*func)())
       +{
       +        return func == layouts[ltidx].arrange;
       +}
       +
       +static Client *
       +nexttiled(Client *c) {
       +        for(; c && (c->isfloating || !isvisible(c)); c = c->next);
       +        return c;
       +}
       +
       +static void
       +setmwfact(const char *arg) {
       +        double delta;
       +
       +        if(!isarrange(tile))
       +                return;
       +        /* arg handling, manipulate mwfact */
       +        if(arg == NULL)
       +                mwfact = MWFACT;
       +        else if(1 == sscanf(arg, "%lf", &delta)) {
       +                if(arg[0] != '+' && arg[0] != '-')
       +                        mwfact = delta;
       +                else
       +                        mwfact += delta;
       +                if(mwfact < 0.1)
       +                        mwfact = 0.1;
       +                else if(mwfact > 0.9)
       +                        mwfact = 0.9;
       +        }
       +        arrange();
       +}
       +
       +static void
       +tile(void) {
       +        unsigned int i, n, nx, ny, nw, nh, mw, th;
       +        Client *c;
       +
       +        for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
       +                n++;
       +
       +        /* window geoms */
       +        mw = (n == 1) ? waw : mwfact * waw;
       +        th = (n > 1) ? wah / (n - 1) : 0;
       +        if(n > 1 && th < bh)
       +                th = wah;
       +
       +        nx = wax;
       +        ny = way;
       +        for(i = 0, c = nexttiled(clients); c; c = nexttiled(c->next), i++) {
       +                c->ismax = False;
       +                if(i == 0) { /* master */
       +                        nw = mw - 2 * c->border;
       +                        nh = wah - 2 * c->border;
       +                }
       +                else {  /* tile window */
       +                        if(i == 1) {
       +                                ny = way;
       +                                nx += mw;
       +                        }
       +                        nw = waw - mw - 2 * c->border;
       +                        if(i + 1 == n) /* remainder */
       +                                nh = (way + wah) - ny - 2 * c->border;
       +                        else
       +                                nh = th - 2 * c->border;
       +                }
       +                resize(c, nx, ny, nw, nh, RESIZEHINTS);
       +                if(n > 1 && th != wah)
       +                        ny += nh + 2 * c->border;
       +        }
       +}
       +
       +static void
       +zoom(const char *arg) {
       +        Client *c;
       +
       +        if(!sel || !isarrange(tile) || sel->isfloating)
       +                return;
       +        if((c = sel) == nexttiled(clients))
       +                if(!(c = nexttiled(c->next)))
       +                        return;
       +        detach(c);
       +        attach(c);
       +        focus(c);
       +        arrange();
       +}
       +
       +int
       +main(int argc, char *argv[]) {
       +        char *p;
       +        int r, xfd;
       +        fd_set rd;
       +        XEvent ev;
       +
       +        if(argc == 2 && !strcmp("-v", argv[1]))
       +                eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n");
       +        else if(argc != 1)
       +                eprint("usage: dwm [-v]\n");
       +        setlocale(LC_CTYPE, "");
       +        if(!(dpy = XOpenDisplay(0)))
       +                eprint("dwm: cannot open display\n");
       +        xfd = ConnectionNumber(dpy);
       +        screen = DefaultScreen(dpy);
       +        root = RootWindow(dpy, screen);
       +        otherwm = False;
       +        XSetErrorHandler(xerrorstart);
       +        /* this causes an error if some other window manager is running */
       +        XSelectInput(dpy, root, SubstructureRedirectMask);
       +        XSync(dpy, False);
       +        if(otherwm)
       +                eprint("dwm: another window manager is already running\n");
       +
       +        XSync(dpy, False);
       +        XSetErrorHandler(NULL);
       +        xerrorxlib = XSetErrorHandler(xerror);
       +        XSync(dpy, False);
       +        setup();
       +        drawbar();
       +        scan();
       +
       +        /* main event loop, also reads status text from stdin */
       +        XSync(dpy, False);
       +        readin = True;
       +        while(running) {
       +                FD_ZERO(&rd);
       +                if(readin)
       +                        FD_SET(STDIN_FILENO, &rd);
       +                FD_SET(xfd, &rd);
       +                if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
       +                        if(errno == EINTR)
       +                                continue;
       +                        eprint("select failed\n");
       +                }
       +                if(FD_ISSET(STDIN_FILENO, &rd)) {
       +                        switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) {
       +                        case -1:
       +                                strncpy(stext, strerror(errno), sizeof stext - 1);
       +                                stext[sizeof stext - 1] = '\0';
       +                                readin = False;
       +                                break;
       +                        case 0:
       +                                strncpy(stext, "EOF", 4);
       +                                readin = False;
       +                                break;
       +                        default:
       +                                for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
       +                                for(; p >= stext && *p != '\n'; --p);
       +                                if(p > stext)
       +                                        strncpy(stext, p + 1, sizeof stext);
       +                        }
       +                        drawbar();
       +                }
       +                while(XPending(dpy)) {
       +                        XNextEvent(dpy, &ev);
       +                        if(handler[ev.type])
       +                                (handler[ev.type])(&ev); /* call handler */
       +                }
       +        }
       +        cleanup();
       +        XCloseDisplay(dpy);
       +        return 0;
       +}
 (DIR) diff --git a/dwm.h b/dwm.h
       t@@ -1,147 +0,0 @@
       -/* See LICENSE file for copyright and license details.
       - *
       - * dynamic window manager is designed like any other X client as well. It is
       - * driven through handling X events. In contrast to other X clients, a window
       - * manager selects for SubstructureRedirectMask on the root window, to receive
       - * events about window (dis-)appearance.  Only one X connection at a time is
       - * allowed to select for this event mask.
       - *
       - * Calls to fetch an X event from the event queue are blocking.  Due reading
       - * status text from standard input, a select()-driven main loop has been
       - * implemented which selects for reads on the X connection and STDIN_FILENO to
       - * handle all data smoothly. The event handlers of dwm are organized in an
       - * array which is accessed whenever a new event has been fetched. This allows
       - * event dispatching in O(1) time.
       - *
       - * Each child of the root window is called a client, except windows which have
       - * set the override_redirect flag.  Clients are organized in a global
       - * doubly-linked client list, the focus history is remembered through a global
       - * stack list. Each client contains an array of Bools of the same size as the
       - * global tags array to indicate the tags of a client.  For each client dwm
       - * creates a small title window, which is resized whenever the (_NET_)WM_NAME
       - * properties are updated or the client is moved/resized.
       - *
       - * Keys and tagging rules are organized as arrays and defined in the config.h
       - * file. These arrays are kept static in event.o and tag.o respectively,
       - * because no other part of dwm needs access to them.  The current layout is
       - * represented by the lt pointer.
       - *
       - * To understand everything else, start reading main.c:main().
       - */
       -
       -#include "config.h"
       -#include <X11/Xlib.h>
       -
       -/* mask shorthands, used in event.c and client.c */
       -#define BUTTONMASK                (ButtonPressMask | ButtonReleaseMask)
       -
       -enum { BarTop, BarBot, BarOff };                        /* bar position */
       -enum { CurNormal, CurResize, CurMove, CurLast };        /* cursor */
       -enum { ColBorder, ColFG, ColBG, ColLast };                /* color */
       -enum { NetSupported, NetWMName, NetLast };                /* EWMH atoms */
       -enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
       -
       -typedef struct Client Client;
       -struct Client {
       -        char name[256];
       -        int x, y, w, h;
       -        int rx, ry, rw, rh; /* revert geometry */
       -        int basew, baseh, incw, inch, maxw, maxh, minw, minh;
       -        int minax, maxax, minay, maxay;
       -        long flags; 
       -        unsigned int border, oldborder;
       -        Bool isbanned, isfixed, ismax, isfloating;
       -        Bool *tags;
       -        Client *next;
       -        Client *prev;
       -        Client *snext;
       -        Window win;
       -};
       -
       -typedef struct {
       -        int x, y, w, h;
       -        unsigned long norm[ColLast];
       -        unsigned long sel[ColLast];
       -        Drawable drawable;
       -        GC gc;
       -        struct {
       -                int ascent;
       -                int descent;
       -                int height;
       -                XFontSet set;
       -                XFontStruct *xfont;
       -        } font;
       -} DC; /* draw context */
       -
       -extern const char *tags[];                        /* all tags */
       -extern char stext[256];                                /* status text */
       -extern int screen, sx, sy, sw, sh;                /* screen geometry */
       -extern int wax, way, wah, waw;                        /* windowarea geometry */
       -extern unsigned int bh, blw, bpos;                /* bar height, bar layout label width, bar position */
       -extern unsigned int ntags, numlockmask;                /* number of tags, numlock mask */
       -extern void (*handler[LASTEvent])(XEvent *);        /* event handler */
       -extern Atom wmatom[WMLast], netatom[NetLast];
       -extern Bool selscreen, *seltags;                /* seltags is array of Bool */
       -extern Client *clients, *sel, *stack;                /* global client list and stack */
       -extern Cursor cursor[CurLast];
       -extern DC dc;                                        /* global draw context */
       -extern Display *dpy;
       -extern Window root, barwin;
       -
       -/* bar.c */
       -void drawbar(void);                        /* draw the bar */
       -void initbar(void);                        /* initializes the bar */
       -void initstyle(void);                        /* initializes colors and font */
       -unsigned int textw(const char *text);        /* return the width of text in px*/
       -void togglebar(const char *arg);        /* shows/hides the bar */
       -void updatebarpos(void);                /* updates the bar position */
       -
       -/* client.c */
       -void attach(Client *c);                        /* attaches c to global client list */
       -void ban(Client *c);                        /* bans c */
       -void configure(Client *c);                /* send synthetic configure event */
       -void detach(Client *c);                        /* detaches c from global client list */
       -void focus(Client *c);                        /* focus c if visible && !NULL, or focus top visible */
       -void killclient(const char *arg);        /* kill sel  nicely */
       -void manage(Window w, XWindowAttributes *wa);        /* manage new client */
       -void resize(Client *c, int x, int y,
       -                int w, int h, Bool sizehints);        /* resize with given coordinates c*/
       -void unban(Client *c);                        /* unbans c */
       -void unmanage(Client *c);                /* unmanage c */
       -void updatesizehints(Client *c);        /* update the size hint variables of c */
       -void updatetitle(Client *c);                /* update the name of c */
       -
       -/* event.c */
       -void grabkeys(void);                        /* grab all keys defined in config.h */
       -
       -/* main.c */
       -Bool gettextprop(Window w, Atom atom,
       -                char *text, unsigned int size); /* return text property, UTF-8 compliant */
       -void quit(const char *arg);                        /* quit dwm nicely */
       -int xerror(Display *dsply, XErrorEvent *ee);        /* dwm's X error handler */
       -
       -/* screen.c */
       -void applyrules(Client *c);                /* applies rules to c */
       -void arrange(void);                        /* arranges all windows depending on the layout in use */
       -void compileregs(void);                        /* initialize regexps of rules defined in config.h */
       -void focusnext(const char *arg);        /* focuses next visible client */
       -void focusprev(const char *arg);        /* focuses prev visible client */
       -const char *getsymbol(void);                /* returns symbol of enabled layout */
       -void initlayouts(void);                        /* initialize layout array */
       -Bool isarrange(void (*func)());                /* returns True if func is the layout function in use */
       -Bool isfloating(void);                        /* returns True if floating layout is enabled */
       -Bool isvisible(Client *c);                /* returns True if client is visible */
       -Client *nexttiled(Client *c);                /* returns tiled successor of c */
       -void restack(void);                        /* restores z layers of all clients */
       -void setlayout(const char *arg);        /* sets layout, NULL means next layout */
       -void tag(const char *arg);                /* tags sel with arg's index */
       -void togglefloating(const char *arg);        /* toggles sel between floating/tiled state */
       -void togglemax(const char *arg);        /* toggles maximization of floating client */
       -void toggletag(const char *arg);        /* toggles sel tags with arg's index */
       -void toggleview(const char *arg);        /* toggles the tag with arg's index (in)visible */
       -void view(const char *arg);                /* views the tag with arg's index */
       -
       -/* util.c */
       -void *emallocz(unsigned int size);        /* allocates zero-initialized memory, exits on error */
       -void eprint(const char *errstr, ...);        /* prints errstr and exits with 1 */
       -void spawn(const char *arg);                /* forks a new subprocess with arg's cmd */
 (DIR) diff --git a/event.c b/event.c
       t@@ -1,375 +0,0 @@
       -/* See LICENSE file for copyright and license details. */
       -#include "dwm.h"
       -#include <stdlib.h>
       -#include <X11/keysym.h>
       -#include <X11/Xatom.h>
       -#include <X11/Xutil.h>
       -
       -/* static */
       -
       -typedef struct {
       -        unsigned long mod;
       -        KeySym keysym;
       -        void (*func)(const char *arg);
       -        const char *arg;
       -} Key;
       -
       -#define CLEANMASK(mask)                (mask & ~(numlockmask | LockMask))
       -#define MOUSEMASK                (BUTTONMASK | PointerMotionMask)
       -
       -static Client *
       -getclient(Window w) {
       -        Client *c;
       -
       -        for(c = clients; c && c->win != w; c = c->next);
       -        return c;
       -}
       -
       -static void
       -movemouse(Client *c) {
       -        int x1, y1, ocx, ocy, di, nx, ny;
       -        unsigned int dui;
       -        Window dummy;
       -        XEvent ev;
       -
       -        ocx = nx = c->x;
       -        ocy = ny = c->y;
       -        if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
       -                        None, cursor[CurMove], CurrentTime) != GrabSuccess)
       -                return;
       -        c->ismax = False;
       -        XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
       -        for(;;) {
       -                XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
       -                switch (ev.type) {
       -                case ButtonRelease:
       -                        XUngrabPointer(dpy, CurrentTime);
       -                        return;
       -                case ConfigureRequest:
       -                case Expose:
       -                case MapRequest:
       -                        handler[ev.type](&ev);
       -                        break;
       -                case MotionNotify:
       -                        XSync(dpy, False);
       -                        nx = ocx + (ev.xmotion.x - x1);
       -                        ny = ocy + (ev.xmotion.y - y1);
       -                        if(abs(wax + nx) < SNAP)
       -                                nx = wax;
       -                        else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP)
       -                                nx = wax + waw - c->w - 2 * c->border;
       -                        if(abs(way - ny) < SNAP)
       -                                ny = way;
       -                        else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP)
       -                                ny = way + wah - c->h - 2 * c->border;
       -                        resize(c, nx, ny, c->w, c->h, False);
       -                        break;
       -                }
       -        }
       -}
       -
       -static void
       -resizemouse(Client *c) {
       -        int ocx, ocy;
       -        int nw, nh;
       -        XEvent ev;
       -
       -        ocx = c->x;
       -        ocy = c->y;
       -        if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
       -                        None, cursor[CurResize], CurrentTime) != GrabSuccess)
       -                return;
       -        c->ismax = False;
       -        XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
       -        for(;;) {
       -                XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
       -                switch(ev.type) {
       -                case ButtonRelease:
       -                        XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
       -                                        c->w + c->border - 1, c->h + c->border - 1);
       -                        XUngrabPointer(dpy, CurrentTime);
       -                        while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
       -                        return;
       -                case ConfigureRequest:
       -                case Expose:
       -                case MapRequest:
       -                        handler[ev.type](&ev);
       -                        break;
       -                case MotionNotify:
       -                        XSync(dpy, False);
       -                        if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
       -                                nw = 1;
       -                        if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
       -                                nh = 1;
       -                        resize(c, c->x, c->y, nw, nh, True);
       -                        break;
       -                }
       -        }
       -}
       -
       -static void
       -buttonpress(XEvent *e) {
       -        unsigned int i, x;
       -        Client *c;
       -        XButtonPressedEvent *ev = &e->xbutton;
       -
       -        if(barwin == ev->window) {
       -                x = 0;
       -                for(i = 0; i < ntags; i++) {
       -                        x += textw(tags[i]);
       -                        if(ev->x < x) {
       -                                if(ev->button == Button1) {
       -                                        if(ev->state & MODKEY)
       -                                                tag(tags[i]);
       -                                        else
       -                                                view(tags[i]);
       -                                }
       -                                else if(ev->button == Button3) {
       -                                        if(ev->state & MODKEY)
       -                                                toggletag(tags[i]);
       -                                        else
       -                                                toggleview(tags[i]);
       -                                }
       -                                return;
       -                        }
       -                }
       -                if((ev->x < x + blw) && ev->button == Button1)
       -                        setlayout(NULL);
       -        }
       -        else if((c = getclient(ev->window))) {
       -                focus(c);
       -                if(CLEANMASK(ev->state) != MODKEY)
       -                        return;
       -                if(ev->button == Button1 && (isfloating() || c->isfloating)) {
       -                        restack();
       -                        movemouse(c);
       -                }
       -                else if(ev->button == Button2)
       -                        zoom(NULL);
       -                else if(ev->button == Button3
       -                && (isfloating() || c->isfloating) && !c->isfixed)
       -                {
       -                        restack();
       -                        resizemouse(c);
       -                }
       -        }
       -}
       -
       -static void
       -configurerequest(XEvent *e) {
       -        Client *c;
       -        XConfigureRequestEvent *ev = &e->xconfigurerequest;
       -        XWindowChanges wc;
       -
       -        if((c = getclient(ev->window))) {
       -                c->ismax = False;
       -                if(ev->value_mask & CWBorderWidth)
       -                        c->border = ev->border_width;
       -                if(c->isfixed || c->isfloating || isfloating()) {
       -                        if(ev->value_mask & CWX)
       -                                c->x = ev->x;
       -                        if(ev->value_mask & CWY)
       -                                c->y = ev->y;
       -                        if(ev->value_mask & CWWidth)
       -                                c->w = ev->width;
       -                        if(ev->value_mask & CWHeight)
       -                                c->h = ev->height;
       -                        if((c->x + c->w) > sw && c->isfloating)
       -                                c->x = sw / 2 - c->w / 2; /* center in x direction */
       -                        if((c->y + c->h) > sh && c->isfloating)
       -                                c->y = sh / 2 - c->h / 2; /* center in y direction */
       -                        if((ev->value_mask & (CWX | CWY))
       -                        && !(ev->value_mask & (CWWidth | CWHeight)))
       -                                configure(c);
       -                        if(isvisible(c))
       -                                XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
       -                }
       -                else
       -                        configure(c);
       -        }
       -        else {
       -                wc.x = ev->x;
       -                wc.y = ev->y;
       -                wc.width = ev->width;
       -                wc.height = ev->height;
       -                wc.border_width = ev->border_width;
       -                wc.sibling = ev->above;
       -                wc.stack_mode = ev->detail;
       -                XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
       -        }
       -        XSync(dpy, False);
       -}
       -
       -static void
       -configurenotify(XEvent *e) {
       -        XConfigureEvent *ev = &e->xconfigure;
       -
       -        if (ev->window == root && (ev->width != sw || ev->height != sh)) {
       -                sw = ev->width;
       -                sh = ev->height;
       -                XFreePixmap(dpy, dc.drawable);
       -                dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
       -                XResizeWindow(dpy, barwin, sw, bh);
       -                updatebarpos();
       -                arrange();
       -        }
       -}
       -
       -static void
       -destroynotify(XEvent *e) {
       -        Client *c;
       -        XDestroyWindowEvent *ev = &e->xdestroywindow;
       -
       -        if((c = getclient(ev->window)))
       -                unmanage(c);
       -}
       -
       -static void
       -enternotify(XEvent *e) {
       -        Client *c;
       -        XCrossingEvent *ev = &e->xcrossing;
       -
       -        if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
       -                return;
       -        if((c = getclient(ev->window)))
       -                focus(c);
       -        else if(ev->window == root) {
       -                selscreen = True;
       -                focus(NULL);
       -        }
       -}
       -
       -static void
       -expose(XEvent *e) {
       -        XExposeEvent *ev = &e->xexpose;
       -
       -        if(ev->count == 0) {
       -                if(barwin == ev->window)
       -                        drawbar();
       -        }
       -}
       -
       -static void
       -keypress(XEvent *e) {
       -        KEYS
       -        unsigned int len = sizeof keys / sizeof keys[0];
       -        unsigned int i;
       -        KeySym keysym;
       -        XKeyEvent *ev = &e->xkey;
       -
       -        keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
       -        for(i = 0; i < len; i++)
       -                if(keysym == keys[i].keysym
       -                && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
       -                {
       -                        if(keys[i].func)
       -                                keys[i].func(keys[i].arg);
       -                }
       -}
       -
       -static void
       -leavenotify(XEvent *e) {
       -        XCrossingEvent *ev = &e->xcrossing;
       -
       -        if((ev->window == root) && !ev->same_screen) {
       -                selscreen = False;
       -                focus(NULL);
       -        }
       -}
       -
       -static void
       -mappingnotify(XEvent *e) {
       -        XMappingEvent *ev = &e->xmapping;
       -
       -        XRefreshKeyboardMapping(ev);
       -        if(ev->request == MappingKeyboard)
       -                grabkeys();
       -}
       -
       -static void
       -maprequest(XEvent *e) {
       -        static XWindowAttributes wa;
       -        XMapRequestEvent *ev = &e->xmaprequest;
       -
       -        if(!XGetWindowAttributes(dpy, ev->window, &wa))
       -                return;
       -        if(wa.override_redirect)
       -                return;
       -        if(!getclient(ev->window))
       -                manage(ev->window, &wa);
       -}
       -
       -static void
       -propertynotify(XEvent *e) {
       -        Client *c;
       -        Window trans;
       -        XPropertyEvent *ev = &e->xproperty;
       -
       -        if(ev->state == PropertyDelete)
       -                return; /* ignore */
       -        if((c = getclient(ev->window))) {
       -                switch (ev->atom) {
       -                        default: break;
       -                        case XA_WM_TRANSIENT_FOR:
       -                                XGetTransientForHint(dpy, c->win, &trans);
       -                                if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
       -                                        arrange();
       -                                break;
       -                        case XA_WM_NORMAL_HINTS:
       -                                updatesizehints(c);
       -                                break;
       -                }
       -                if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
       -                        updatetitle(c);
       -                        if(c == sel)
       -                                drawbar();
       -                }
       -        }
       -}
       -
       -static void
       -unmapnotify(XEvent *e) {
       -        Client *c;
       -        XUnmapEvent *ev = &e->xunmap;
       -
       -        if((c = getclient(ev->window)))
       -                unmanage(c);
       -}
       -
       -/* extern */
       -
       -void (*handler[LASTEvent]) (XEvent *) = {
       -        [ButtonPress] = buttonpress,
       -        [ConfigureRequest] = configurerequest,
       -        [ConfigureNotify] = configurenotify,
       -        [DestroyNotify] = destroynotify,
       -        [EnterNotify] = enternotify,
       -        [LeaveNotify] = leavenotify,
       -        [Expose] = expose,
       -        [KeyPress] = keypress,
       -        [MappingNotify] = mappingnotify,
       -        [MapRequest] = maprequest,
       -        [PropertyNotify] = propertynotify,
       -        [UnmapNotify] = unmapnotify
       -};
       -
       -void
       -grabkeys(void) {
       -        KEYS
       -        unsigned int len = sizeof keys / sizeof keys[0];
       -        unsigned int i;
       -        KeyCode code;
       -
       -        XUngrabKey(dpy, AnyKey, AnyModifier, root);
       -        for(i = 0; i < len; i++) {
       -                code = XKeysymToKeycode(dpy, keys[i].keysym);
       -                XGrabKey(dpy, code, keys[i].mod, root, True,
       -                                GrabModeAsync, GrabModeAsync);
       -                XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
       -                                GrabModeAsync, GrabModeAsync);
       -                XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
       -                                GrabModeAsync, GrabModeAsync);
       -                XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
       -                                GrabModeAsync, GrabModeAsync);
       -        }
       -}
 (DIR) diff --git a/main.c b/main.c
       t@@ -1,296 +0,0 @@
       -/* See LICENSE file for copyright and license details. */
       -#include "dwm.h"
       -#include <errno.h>
       -#include <locale.h>
       -#include <stdio.h>
       -#include <stdlib.h>
       -#include <string.h>
       -#include <unistd.h>
       -#include <sys/select.h>
       -#include <X11/cursorfont.h>
       -#include <X11/keysym.h>
       -#include <X11/Xatom.h>
       -#include <X11/Xproto.h>
       -#include <X11/Xutil.h>
       -
       -/* extern */
       -
       -char stext[256];
       -int screen, sx, sy, sw, sh, wax, way, waw, wah;
       -unsigned int ntags;
       -unsigned int numlockmask = 0;
       -Atom wmatom[WMLast], netatom[NetLast];
       -Bool *seltags;
       -Bool selscreen = True;
       -Client *clients = NULL;
       -Client *sel = NULL;
       -Client *stack = NULL;
       -Cursor cursor[CurLast];
       -Display *dpy;
       -Window root;
       -
       -/* static */
       -
       -static int (*xerrorxlib)(Display *, XErrorEvent *);
       -static Bool otherwm, readin;
       -static Bool running = True;
       -
       -static void
       -cleanup(void) {
       -        close(STDIN_FILENO);
       -        while(stack) {
       -                unban(stack);
       -                unmanage(stack);
       -        }
       -        if(dc.font.set)
       -                XFreeFontSet(dpy, dc.font.set);
       -        else
       -                XFreeFont(dpy, dc.font.xfont);
       -        XUngrabKey(dpy, AnyKey, AnyModifier, root);
       -        XFreePixmap(dpy, dc.drawable);
       -        XFreeGC(dpy, dc.gc);
       -        XDestroyWindow(dpy, barwin);
       -        XFreeCursor(dpy, cursor[CurNormal]);
       -        XFreeCursor(dpy, cursor[CurResize]);
       -        XFreeCursor(dpy, cursor[CurMove]);
       -        XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
       -        XSync(dpy, False);
       -        free(seltags);
       -}
       -
       -static long
       -getstate(Window w) {
       -        int format, status;
       -        long result = -1;
       -        unsigned char *p = NULL;
       -        unsigned long n, extra;
       -        Atom real;
       -
       -        status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
       -                        &real, &format, &n, &extra, (unsigned char **)&p);
       -        if(status != Success)
       -                return -1;
       -        if(n != 0)
       -                result = *p;
       -        XFree(p);
       -        return result;
       -}
       -
       -static void
       -scan(void) {
       -        unsigned int i, num;
       -        Window *wins, d1, d2;
       -        XWindowAttributes wa;
       -
       -        wins = NULL;
       -        if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
       -                for(i = 0; i < num; i++) {
       -                        if(!XGetWindowAttributes(dpy, wins[i], &wa)
       -                        || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
       -                                continue;
       -                        if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
       -                                manage(wins[i], &wa);
       -                }
       -                for(i = 0; i < num; i++) { /* now the transients */
       -                        if(!XGetWindowAttributes(dpy, wins[i], &wa))
       -                                continue;
       -                        if(XGetTransientForHint(dpy, wins[i], &d1)
       -                        && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
       -                                manage(wins[i], &wa);
       -                }
       -        }
       -        if(wins)
       -                XFree(wins);
       -}
       -
       -static void
       -setup(void) {
       -        int i, j;
       -        unsigned int mask;
       -        Window w;
       -        XModifierKeymap *modmap;
       -        XSetWindowAttributes wa;
       -
       -        /* init atoms */
       -        wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
       -        wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
       -        wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
       -        wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
       -        netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
       -        netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
       -        XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
       -                        PropModeReplace, (unsigned char *) netatom, NetLast);
       -        /* init cursors */
       -        cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
       -        cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
       -        cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
       -        /* init modifier map */
       -        modmap = XGetModifierMapping(dpy);
       -        for (i = 0; i < 8; i++)
       -                for (j = 0; j < modmap->max_keypermod; j++) {
       -                        if(modmap->modifiermap[i * modmap->max_keypermod + j]
       -                                        == XKeysymToKeycode(dpy, XK_Num_Lock))
       -                                numlockmask = (1 << i);
       -                }
       -        XFreeModifiermap(modmap);
       -        /* select for events */
       -        wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
       -                | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
       -        wa.cursor = cursor[CurNormal];
       -        XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
       -        XSelectInput(dpy, root, wa.event_mask);
       -        grabkeys();
       -        compileregs();
       -        for(ntags = 0; tags[ntags]; ntags++);
       -        seltags = emallocz(sizeof(Bool) * ntags);
       -        seltags[0] = True;
       -        /* geometry */
       -        sx = sy = 0;
       -        sw = DisplayWidth(dpy, screen);
       -        sh = DisplayHeight(dpy, screen);
       -        initstyle();
       -        initlayouts();
       -        initbar();
       -        /* multihead support */
       -        selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
       -}
       -
       -/*
       - * Startup Error handler to check if another window manager
       - * is already running.
       - */
       -static int
       -xerrorstart(Display *dsply, XErrorEvent *ee) {
       -        otherwm = True;
       -        return -1;
       -}
       -
       -/* extern */
       -
       -Bool
       -gettextprop(Window w, Atom atom, char *text, unsigned int size) {
       -        char **list = NULL;
       -        int n;
       -        XTextProperty name;
       -
       -        if(!text || size == 0)
       -                return False;
       -        text[0] = '\0';
       -        XGetTextProperty(dpy, w, &name, atom);
       -        if(!name.nitems)
       -                return False;
       -        if(name.encoding == XA_STRING)
       -                strncpy(text, (char *)name.value, size - 1);
       -        else {
       -                if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
       -                && n > 0 && *list)
       -                {
       -                        strncpy(text, *list, size - 1);
       -                        XFreeStringList(list);
       -                }
       -        }
       -        text[size - 1] = '\0';
       -        XFree(name.value);
       -        return True;
       -}
       -
       -void
       -quit(const char *arg) {
       -        readin = running = False;
       -}
       -
       -/* There's no way to check accesses to destroyed windows, thus those cases are
       - * ignored (especially on UnmapNotify's).  Other types of errors call Xlibs
       - * default error handler, which may call exit.
       - */
       -int
       -xerror(Display *dpy, XErrorEvent *ee) {
       -        if(ee->error_code == BadWindow
       -        || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
       -        || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
       -        || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
       -        || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
       -        || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
       -        || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
       -        || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
       -                return 0;
       -        fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
       -                ee->request_code, ee->error_code);
       -        return xerrorxlib(dpy, ee); /* may call exit */
       -}
       -
       -int
       -main(int argc, char *argv[]) {
       -        char *p;
       -        int r, xfd;
       -        fd_set rd;
       -        XEvent ev;
       -
       -        if(argc == 2 && !strcmp("-v", argv[1]))
       -                eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n");
       -        else if(argc != 1)
       -                eprint("usage: dwm [-v]\n");
       -        setlocale(LC_CTYPE, "");
       -        if(!(dpy = XOpenDisplay(0)))
       -                eprint("dwm: cannot open display\n");
       -        xfd = ConnectionNumber(dpy);
       -        screen = DefaultScreen(dpy);
       -        root = RootWindow(dpy, screen);
       -        otherwm = False;
       -        XSetErrorHandler(xerrorstart);
       -        /* this causes an error if some other window manager is running */
       -        XSelectInput(dpy, root, SubstructureRedirectMask);
       -        XSync(dpy, False);
       -        if(otherwm)
       -                eprint("dwm: another window manager is already running\n");
       -
       -        XSync(dpy, False);
       -        XSetErrorHandler(NULL);
       -        xerrorxlib = XSetErrorHandler(xerror);
       -        XSync(dpy, False);
       -        setup();
       -        drawbar();
       -        scan();
       -
       -        /* main event loop, also reads status text from stdin */
       -        XSync(dpy, False);
       -        readin = True;
       -        while(running) {
       -                FD_ZERO(&rd);
       -                if(readin)
       -                        FD_SET(STDIN_FILENO, &rd);
       -                FD_SET(xfd, &rd);
       -                if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
       -                        if(errno == EINTR)
       -                                continue;
       -                        eprint("select failed\n");
       -                }
       -                if(FD_ISSET(STDIN_FILENO, &rd)) {
       -                        switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) {
       -                        case -1:
       -                                strncpy(stext, strerror(errno), sizeof stext - 1);
       -                                stext[sizeof stext - 1] = '\0';
       -                                readin = False;
       -                                break;
       -                        case 0:
       -                                strncpy(stext, "EOF", 4);
       -                                readin = False;
       -                                break;
       -                        default:
       -                                for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
       -                                for(; p >= stext && *p != '\n'; --p);
       -                                if(p > stext)
       -                                        strncpy(stext, p + 1, sizeof stext);
       -                        }
       -                        drawbar();
       -                }
       -                while(XPending(dpy)) {
       -                        XNextEvent(dpy, &ev);
       -                        if(handler[ev.type])
       -                                (handler[ev.type])(&ev); /* call handler */
       -                }
       -        }
       -        cleanup();
       -        XCloseDisplay(dpy);
       -        return 0;
       -}
 (DIR) diff --git a/screen.c b/screen.c
       t@@ -1,340 +0,0 @@
       -/* See LICENSE file for copyright and license details. */
       -#include "dwm.h"
       -#include <regex.h>
       -#include <stdio.h>
       -#include <stdlib.h>
       -#include <string.h>
       -#include <X11/Xutil.h>
       -
       -/* static */
       -
       -typedef struct {
       -        const char *symbol;
       -        void (*arrange)(void);
       -} Layout;
       -
       -typedef struct {
       -        const char *prop;
       -        const char *tags;
       -        Bool isfloating;
       -} Rule;
       -
       -typedef struct {
       -        regex_t *propregex;
       -        regex_t *tagregex;
       -} Regs;
       -
       -TAGS
       -RULES
       -
       -static unsigned int nrules = 0;
       -static unsigned int nlayouts = 0;
       -static unsigned int ltidx = 0; /* default */
       -static Regs *regs = NULL;
       -
       -static unsigned int
       -idxoftag(const char *tag) {
       -        unsigned int i;
       -
       -        for(i = 0; i < ntags; i++)
       -                if(tags[i] == tag)
       -                        return i;
       -        return 0;
       -}
       -
       -static void
       -floating(void) { /* default floating layout */
       -        Client *c;
       -
       -        for(c = clients; c; c = c->next)
       -                if(isvisible(c))
       -                        resize(c, c->x, c->y, c->w, c->h, True);
       -}
       -
       -LAYOUTS
       -
       -/* extern */
       -
       -unsigned int blw = 0;
       -
       -void
       -applyrules(Client *c) {
       -        static char buf[512];
       -        unsigned int i, j;
       -        regmatch_t tmp;
       -        Bool matched = False;
       -        XClassHint ch = { 0 };
       -
       -        /* rule matching */
       -        XGetClassHint(dpy, c->win, &ch);
       -        snprintf(buf, sizeof buf, "%s:%s:%s",
       -                        ch.res_class ? ch.res_class : "",
       -                        ch.res_name ? ch.res_name : "", c->name);
       -        for(i = 0; i < nrules; i++)
       -                if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
       -                        c->isfloating = rules[i].isfloating;
       -                        for(j = 0; regs[i].tagregex && j < ntags; j++) {
       -                                if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
       -                                        matched = True;
       -                                        c->tags[j] = True;
       -                                }
       -                        }
       -                }
       -        if(ch.res_class)
       -                XFree(ch.res_class);
       -        if(ch.res_name)
       -                XFree(ch.res_name);
       -        if(!matched)
       -                for(i = 0; i < ntags; i++)
       -                        c->tags[i] = seltags[i];
       -}
       -
       -void
       -arrange(void) {
       -        Client *c;
       -
       -        for(c = clients; c; c = c->next)
       -                if(isvisible(c))
       -                        unban(c);
       -                else
       -                        ban(c);
       -        layouts[ltidx].arrange();
       -        focus(NULL);
       -        restack();
       -}
       -
       -void
       -compileregs(void) {
       -        unsigned int i;
       -        regex_t *reg;
       -
       -        if(regs)
       -                return;
       -        nrules = sizeof rules / sizeof rules[0];
       -        regs = emallocz(nrules * sizeof(Regs));
       -        for(i = 0; i < nrules; i++) {
       -                if(rules[i].prop) {
       -                        reg = emallocz(sizeof(regex_t));
       -                        if(regcomp(reg, rules[i].prop, REG_EXTENDED))
       -                                free(reg);
       -                        else
       -                                regs[i].propregex = reg;
       -                }
       -                if(rules[i].tags) {
       -                        reg = emallocz(sizeof(regex_t));
       -                        if(regcomp(reg, rules[i].tags, REG_EXTENDED))
       -                                free(reg);
       -                        else
       -                                regs[i].tagregex = reg;
       -                }
       -        }
       -}
       -
       -void
       -focusnext(const char *arg) {
       -        Client *c;
       -
       -        if(!sel)
       -                return;
       -        for(c = sel->next; c && !isvisible(c); c = c->next);
       -        if(!c)
       -                for(c = clients; c && !isvisible(c); c = c->next);
       -        if(c) {
       -                focus(c);
       -                restack();
       -        }
       -}
       -
       -void
       -focusprev(const char *arg) {
       -        Client *c;
       -
       -        if(!sel)
       -                return;
       -        for(c = sel->prev; c && !isvisible(c); c = c->prev);
       -        if(!c) {
       -                for(c = clients; c && c->next; c = c->next);
       -                for(; c && !isvisible(c); c = c->prev);
       -        }
       -        if(c) {
       -                focus(c);
       -                restack();
       -        }
       -}
       -
       -const char *
       -getsymbol(void)
       -{
       -        return layouts[ltidx].symbol;
       -}
       -
       -void
       -initlayouts(void) {
       -        unsigned int i, w;
       -
       -        nlayouts = sizeof layouts / sizeof layouts[0];
       -        for(blw = i = 0; i < nlayouts; i++) {
       -                w = textw(layouts[i].symbol);
       -                if(w > blw)
       -                        blw = w;
       -        }
       -}
       -
       -Bool
       -isfloating(void) {
       -        return layouts[ltidx].arrange == floating;
       -}
       -
       -Bool
       -isarrange(void (*func)())
       -{
       -        return func == layouts[ltidx].arrange;
       -}
       -
       -Bool
       -isvisible(Client *c) {
       -        unsigned int i;
       -
       -        for(i = 0; i < ntags; i++)
       -                if(c->tags[i] && seltags[i])
       -                        return True;
       -        return False;
       -}
       -
       -Client *
       -nexttiled(Client *c) {
       -        for(; c && (c->isfloating || !isvisible(c)); c = c->next);
       -        return c;
       -}
       -
       -void
       -restack(void) {
       -        Client *c;
       -        XEvent ev;
       -        XWindowChanges wc;
       -
       -        drawbar();
       -        if(!sel)
       -                return;
       -        if(sel->isfloating || isfloating())
       -                XRaiseWindow(dpy, sel->win);
       -        if(!isfloating()) {
       -                wc.stack_mode = Below;
       -                wc.sibling = barwin;
       -                if(!sel->isfloating) {
       -                        XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
       -                        wc.sibling = sel->win;
       -                }
       -                for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
       -                        if(c == sel)
       -                                continue;
       -                        XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
       -                        wc.sibling = c->win;
       -                }
       -        }
       -        XSync(dpy, False);
       -        while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
       -}
       -
       -void
       -setlayout(const char *arg) {
       -        unsigned int i;
       -
       -        if(!arg) {
       -                if(++ltidx == nlayouts)
       -                        ltidx = 0;;
       -        }
       -        else {
       -                for(i = 0; i < nlayouts; i++)
       -                        if(!strcmp(arg, layouts[i].symbol))
       -                                break;
       -                if(i == nlayouts)
       -                        return;
       -                ltidx = i;
       -        }
       -        if(sel)
       -                arrange();
       -        else
       -                drawbar();
       -}
       -
       -void
       -tag(const char *arg) {
       -        unsigned int i;
       -
       -        if(!sel)
       -                return;
       -        for(i = 0; i < ntags; i++)
       -                sel->tags[i] = arg == NULL;
       -        i = idxoftag(arg);
       -        if(i >= 0 && i < ntags)
       -                sel->tags[i] = True;
       -        arrange();
       -}
       -
       -void
       -togglefloating(const char *arg) {
       -        if(!sel)
       -                return;
       -        sel->isfloating = !sel->isfloating;
       -        if(sel->isfloating)
       -                resize(sel, sel->x, sel->y, sel->w, sel->h, True);
       -        arrange();
       -}
       -
       -void
       -togglemax(const char *arg) {
       -        XEvent ev;
       -
       -        if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed)
       -                return;
       -        if((sel->ismax = !sel->ismax)) {
       -                sel->rx = sel->x;
       -                sel->ry = sel->y;
       -                sel->rw = sel->w;
       -                sel->rh = sel->h;
       -                resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
       -        }
       -        else
       -                resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
       -        drawbar();
       -        while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
       -}
       -
       -void
       -toggletag(const char *arg) {
       -        unsigned int i, j;
       -
       -        if(!sel)
       -                return;
       -        i = idxoftag(arg);
       -        sel->tags[i] = !sel->tags[i];
       -        for(j = 0; j < ntags && !sel->tags[j]; j++);
       -        if(j == ntags)
       -                sel->tags[i] = True;
       -        arrange();
       -}
       -
       -void
       -toggleview(const char *arg) {
       -        unsigned int i, j;
       -
       -        i = idxoftag(arg);
       -        seltags[i] = !seltags[i];
       -        for(j = 0; j < ntags && !seltags[j]; j++);
       -        if(j == ntags)
       -                seltags[i] = True; /* cannot toggle last view */
       -        arrange();
       -}
       -
       -void
       -view(const char *arg) {
       -        unsigned int i;
       -
       -        for(i = 0; i < ntags; i++)
       -                seltags[i] = arg == NULL;
       -        i = idxoftag(arg);
       -        if(i >= 0 && i < ntags)
       -                seltags[i] = True;
       -        arrange();
       -}
 (DIR) diff --git a/tile.c b/tile.c
       t@@ -1,85 +0,0 @@
       -/* See LICENSE file for copyright and license details. */
       -#include "dwm.h"
       -#include <stdio.h>
       -
       -/* static */
       -
       -static double mwfact = MWFACT;
       -
       -/* extern */
       -
       -void
       -setmwfact(const char *arg) {
       -        double delta;
       -
       -        if(!isarrange(tile))
       -                return;
       -        /* arg handling, manipulate mwfact */
       -        if(arg == NULL)
       -                mwfact = MWFACT;
       -        else if(1 == sscanf(arg, "%lf", &delta)) {
       -                if(arg[0] != '+' && arg[0] != '-')
       -                        mwfact = delta;
       -                else
       -                        mwfact += delta;
       -                if(mwfact < 0.1)
       -                        mwfact = 0.1;
       -                else if(mwfact > 0.9)
       -                        mwfact = 0.9;
       -        }
       -        arrange();
       -}
       -
       -void
       -tile(void) {
       -        unsigned int i, n, nx, ny, nw, nh, mw, th;
       -        Client *c;
       -
       -        for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
       -                n++;
       -
       -        /* window geoms */
       -        mw = (n == 1) ? waw : mwfact * waw;
       -        th = (n > 1) ? wah / (n - 1) : 0;
       -        if(n > 1 && th < bh)
       -                th = wah;
       -
       -        nx = wax;
       -        ny = way;
       -        for(i = 0, c = nexttiled(clients); c; c = nexttiled(c->next), i++) {
       -                c->ismax = False;
       -                if(i == 0) { /* master */
       -                        nw = mw - 2 * c->border;
       -                        nh = wah - 2 * c->border;
       -                }
       -                else {  /* tile window */
       -                        if(i == 1) {
       -                                ny = way;
       -                                nx += mw;
       -                        }
       -                        nw = waw - mw - 2 * c->border;
       -                        if(i + 1 == n) /* remainder */
       -                                nh = (way + wah) - ny - 2 * c->border;
       -                        else
       -                                nh = th - 2 * c->border;
       -                }
       -                resize(c, nx, ny, nw, nh, RESIZEHINTS);
       -                if(n > 1 && th != wah)
       -                        ny += nh + 2 * c->border;
       -        }
       -}
       -
       -void
       -zoom(const char *arg) {
       -        Client *c;
       -
       -        if(!sel || !isarrange(tile) || sel->isfloating)
       -                return;
       -        if((c = sel) == nexttiled(clients))
       -                if(!(c = nexttiled(c->next)))
       -                        return;
       -        detach(c);
       -        attach(c);
       -        focus(c);
       -        arrange();
       -}
 (DIR) diff --git a/tile.h b/tile.h
       t@@ -1,6 +0,0 @@
       -/* See LICENSE file for copyright and license details. */
       -
       -/* tile.c */
       -void setmwfact(const char *arg);        /* sets master width factor */
       -void tile(void);                        /* arranges all windows tiled */
       -void zoom(const char *arg);                /* zooms the focused client to master area, arg is ignored */
 (DIR) diff --git a/util.c b/util.c
       t@@ -1,52 +0,0 @@
       -/* See LICENSE file for copyright and license details. */
       -#include "dwm.h"
       -#include <stdarg.h>
       -#include <stdio.h>
       -#include <stdlib.h>
       -#include <sys/wait.h>
       -#include <unistd.h>
       -
       -/* extern */
       -
       -void *
       -emallocz(unsigned int size) {
       -        void *res = calloc(1, size);
       -
       -        if(!res)
       -                eprint("fatal: could not malloc() %u bytes\n", size);
       -        return res;
       -}
       -
       -void
       -eprint(const char *errstr, ...) {
       -        va_list ap;
       -
       -        va_start(ap, errstr);
       -        vfprintf(stderr, errstr, ap);
       -        va_end(ap);
       -        exit(EXIT_FAILURE);
       -}
       -
       -void
       -spawn(const char *arg) {
       -        static char *shell = NULL;
       -
       -        if(!shell && !(shell = getenv("SHELL")))
       -                shell = "/bin/sh";
       -        if(!arg)
       -                return;
       -        /* The double-fork construct avoids zombie processes and keeps the code
       -         * clean from stupid signal handlers. */
       -        if(fork() == 0) {
       -                if(fork() == 0) {
       -                        if(dpy)
       -                                close(ConnectionNumber(dpy));
       -                        setsid();
       -                        execl(shell, shell, "-c", arg, (char *)NULL);
       -                        fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
       -                        perror(" failed");
       -                }
       -                exit(0);
       -        }
       -        wait(0);
       -}