dwm

my fork of dwm
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commit 34e7872c89613356293d554970d9d56adc4b0a4e
parent c36f7c3c5e5db297689765142c64977f6317a21c
Author: Anselm R. Garbe <garbeam@gmail.com>
Date:   Sun, 28 Oct 2007 12:52:16 +0100

replaced Nmacros with LENGTH(x) macro
Diffstat:
Mconfig.def.h | 11+++++------
Mdwm.c | 42+++++++++++++++++++++---------------------
2 files changed, 26 insertions(+), 27 deletions(-)
diff --git a/config.def.h b/config.def.h
@@ -11,11 +11,13 @@
 #define SELBGCOLOR        "#0066ff"
 #define SELFGCOLOR        "#ffffff"
 
+/* convenience */
+#define LENGTH(x) (sizeof x / sizeof x[0])
+
 /* tagging */
 const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "www" };
-#define NTAGS (sizeof tags / sizeof tags[0])
-Bool seltags[NTAGS] = {[0] = True};
-Bool prevtags[NTAGS] = {[0] = True};
+Bool seltags[LENGTH(tags)] = {[0] = True};
+Bool prevtags[LENGTH(tags)] = {[0] = True};
 Rule rules[] = {
     /* class:instance:title regex    tags regex    isfloating */
     { "Firefox",            "www",        False },
@@ -23,7 +25,6 @@ Rule rules[] = {
     { "MPlayer",            NULL,        True },
     { "Acroread",            NULL,        True },
 };
-#define NRULES (sizeof rules / sizeof rules[0])
 
 /* layout(s) */
 #define MWFACT            0.6    /* master width factor [0.1 .. 0.9] */
@@ -33,7 +34,6 @@ Layout layouts[] = {
     { "[]=",        tile }, /* first entry is default */
     { "><>",        floating },
 };
-#define NLAYOUTS (sizeof layouts / sizeof layouts[0])
 
 /* key definitions */
 #define MODKEY            Mod1Mask
@@ -95,4 +95,3 @@ Key keys[] = { \
     { MODKEY|ControlMask|ShiftMask,    XK_9,        toggletag,    tags[8] }, \
     { MODKEY|ShiftMask,        XK_q,        quit,        NULL }, \
 };
-#define NKEYS (sizeof keys / sizeof keys[0])
diff --git a/dwm.c b/dwm.c
@@ -245,10 +245,10 @@ applyrules(Client *c) {
     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++)
+    for(i = 0; i < LENGTH(rules); 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++) {
+            for(j = 0; regs[i].tagregex && j < LENGTH(tags); j++) {
                 if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
                     matched = True;
                     c->tags[j] = True;
@@ -307,7 +307,7 @@ buttonpress(XEvent *e) {
 
     if(barwin == ev->window) {
         x = 0;
-        for(i = 0; i < NTAGS; i++) {
+        for(i = 0; i < LENGTH(tags); i++) {
             x += textw(tags[i]);
             if(ev->x < x) {
                 if(ev->button == Button1) {
@@ -400,8 +400,8 @@ compileregs(void) {
 
     if(regs)
         return;
-    regs = emallocz(NRULES * sizeof(Regs));
-    for(i = 0; i < NRULES; i++) {
+    regs = emallocz(LENGTH(rules) * sizeof(Regs));
+    for(i = 0; i < LENGTH(rules); i++) {
         if(rules[i].prop) {
             reg = emallocz(sizeof(regex_t));
             if(regcomp(reg, rules[i].prop, REG_EXTENDED))
@@ -530,7 +530,7 @@ drawbar(void) {
     int i, x;
 
     dc.x = dc.y = 0;
-    for(i = 0; i < NTAGS; i++) {
+    for(i = 0; i < LENGTH(tags); i++) {
         dc.w = textw(tags[i]);
         if(seltags[i]) {
             drawtext(tags[i], dc.sel);
@@ -841,8 +841,8 @@ unsigned int
 idxoftag(const char *tag) {
     unsigned int i;
 
-    for(i = 0; (i < NTAGS) && (tags[i] != tag); i++);
-    return (i < NTAGS) ? i : 0;
+    for(i = 0; (i < LENGTH(tags)) && (tags[i] != tag); i++);
+    return (i < LENGTH(tags)) ? i : 0;
 }
 
 void
@@ -916,7 +916,7 @@ Bool
 isvisible(Client *c) {
     unsigned int i;
 
-    for(i = 0; i < NTAGS; i++)
+    for(i = 0; i < LENGTH(tags); i++)
         if(c->tags[i] && seltags[i])
             return True;
     return False;
@@ -932,7 +932,7 @@ keypress(XEvent *e) {
 
     if(!e) { /* grabkeys */
         XUngrabKey(dpy, AnyKey, AnyModifier, root);
-        for(i = 0; i < NKEYS; i++) {
+        for(i = 0; i < LENGTH(keys); i++) {
             code = XKeysymToKeycode(dpy, keys[i].keysym);
             XGrabKey(dpy, code, keys[i].mod, root, True,
                     GrabModeAsync, GrabModeAsync);
@@ -947,7 +947,7 @@ keypress(XEvent *e) {
     }
     ev = &e->xkey;
     keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
-    for(i = 0; i < NKEYS; i++)
+    for(i = 0; i < LENGTH(keys); i++)
         if(keysym == keys[i].keysym
         && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
         {
@@ -1366,14 +1366,14 @@ setlayout(const char *arg) {
     unsigned int i;
 
     if(!arg) {
-        if(++layout == &layouts[NLAYOUTS])
+        if(++layout == &layouts[LENGTH(layouts)])
             layout = &layouts[0];
     }
     else {
-        for(i = 0; i < NLAYOUTS; i++)
+        for(i = 0; i < LENGTH(layouts); i++)
             if(!strcmp(arg, layouts[i].symbol))
                 break;
-        if(i == NLAYOUTS)
+        if(i == LENGTH(layouts))
             return;
         layout = &layouts[i];
     }
@@ -1469,7 +1469,7 @@ setup(void) {
     /* init layouts */
     mwfact = MWFACT;
     layout = &layouts[0];
-    for(blw = i = 0; i < NLAYOUTS; i++) {
+    for(blw = i = 0; i < LENGTH(layouts); i++) {
         j = textw(layouts[i].symbol);
         if(j > blw)
             blw = j;
@@ -1527,7 +1527,7 @@ tag(const char *arg) {
 
     if(!sel)
         return;
-    for(i = 0; i < NTAGS; i++)
+    for(i = 0; i < LENGTH(tags); i++)
         sel->tags[i] = (NULL == arg);
     sel->tags[idxoftag(arg)] = True;
     arrange();
@@ -1649,8 +1649,8 @@ toggletag(const char *arg) {
         return;
     i = idxoftag(arg);
     sel->tags[i] = !sel->tags[i];
-    for(j = 0; j < NTAGS && !sel->tags[j]; j++);
-    if(j == NTAGS)
+    for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
+    if(j == LENGTH(tags))
         sel->tags[i] = True; /* at least one tag must be enabled */
     arrange();
 }
@@ -1661,8 +1661,8 @@ toggleview(const char *arg) {
 
     i = idxoftag(arg);
     seltags[i] = !seltags[i];
-    for(j = 0; j < NTAGS && !seltags[j]; j++);
-    if(j == NTAGS)
+    for(j = 0; j < LENGTH(tags) && !seltags[j]; j++);
+    if(j == LENGTH(tags))
         seltags[i] = True; /* at least one tag must be viewed */
     arrange();
 }
@@ -1828,7 +1828,7 @@ view(const char *arg) {
     unsigned int i;
 
     memcpy(prevtags, seltags, sizeof seltags);
-    for(i = 0; i < NTAGS; i++)
+    for(i = 0; i < LENGTH(tags); i++)
         seltags[i] = (NULL == arg);
     seltags[idxoftag(arg)] = True;
     arrange();