portability

config.mk

@@ -18,7 +18,7 @@ LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS}
 
 # flags
 CPPFLAGS = -D_BSD_SOURCE -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
-CFLAGS   = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
+CFLAGS   = -ansi -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
 LDFLAGS  = -s ${LIBS}
 
 # compiler and linker

dmenu.c

@@ -3,6 +3,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <unistd.h>
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
@@ -231,13 +232,14 @@ insert(const char *str, ssize_t n) {
 void
 keypress(XKeyEvent *ev) {
 	char buf[32];
-	size_t len;
 	KeySym ksym;
 
-	len = strlen(text);
 	XLookupString(ev, buf, sizeof buf, &ksym, NULL);
-	if(ev->state & ControlMask)
-		switch(tolower(ksym)) {
+	if(ev->state & ControlMask) {
+		KeySym lower, upper;
+
+		XConvertCase(ksym, &lower, &upper);
+		switch(lower) {
 		default:
 			return;
 		case XK_a:
@@ -290,13 +292,14 @@ keypress(XKeyEvent *ev) {
 			XConvertSelection(dc->dpy, XA_PRIMARY, utf8, utf8, win, CurrentTime);
 			return;
 		}
+	}
 	switch(ksym) {
 	default:
 		if(!iscntrl(*buf))
 			insert(buf, strlen(buf));
 		break;
 	case XK_Delete:
-		if(cursor == len)
+		if(text[cursor] == '\0')
 			return;
 		cursor = nextrune(+1);
 	case XK_BackSpace:
@@ -304,8 +307,8 @@ keypress(XKeyEvent *ev) {
 			insert(NULL, nextrune(-1) - cursor);
 		break;
 	case XK_End:
-		if(cursor < len) {
-			cursor = len;
+		if(text[cursor] != '\0') {
+			cursor = strlen(text);
 			break;
 		}
 		if(next) {
@@ -358,7 +361,7 @@ keypress(XKeyEvent *ev) {
 		fputs((sel && !(ev->state & ShiftMask)) ? sel->text : text, stdout);
 		exit(EXIT_SUCCESS);
 	case XK_Right:
-		if(cursor < len) {
+		if(text[cursor] != '\0') {
 			cursor = nextrune(+1);
 			break;
 		}
@@ -385,7 +388,7 @@ void
 match(Bool sub) {
 	size_t len = strlen(text);
 	Item *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
-	Item *item, *next = NULL;
+	Item *item, *next;
 
 	lexact = lprefix = lsubstr = exactend = prefixend = substrend = NULL;
 	for(item = sub ? matches : items; item && item->text; item = next) {

draw.c

@@ -15,12 +15,13 @@ static Bool loadfont(DC *dc, const char *fontstr);
 
 void
 drawrect(DC *dc, int x, int y, unsigned int w, unsigned int h, Bool fill, unsigned long color) {
-	XRectangle r = { dc->x + x, dc->y + y, w, h };
+	XRectangle r;
+
+	r.x = dc->x + x;
+	r.y = dc->y + y;
+	r.width  = fill ? w : w-1;
+	r.height = fill ? h : h-1;
 
-	if(!fill) {
-		r.width -= 1;
-		r.height -= 1;
-	}
 	XSetForeground(dc->dpy, dc->gc, color);
 	(fill ? XFillRectangles : XDrawRectangles)(dc->dpy, dc->canvas, dc->gc, &r, 1);
 }