shithub: vexed

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add -d flag to dim the color of nul bytes.

--- a/cols.c

+++ b/cols.c

@@ -14,6 +14,7 @@

 		cols[HEX]    = display->white;

 		cols[ASCII]  = allocimage(display, Rect(0,0,1,1), screen->chan, 1, DPurpleblue);

 		cols[HHEX]	 = display->black;

+		cols[DHEX]	 = allocimage(display, Rect(0,0,1,1), screen->chan, 1, 0xAAAAAAFF^reverse);

 		cols[HIGH]	 = allocimage(display, Rect(0,0,1,1), screen->chan, 1, DPurpleblue);

 		cols[SCROLL] = allocimage(display, Rect(0,0,1,1), screen->chan, 1, 0x999999FF^reverse);

 	}else{

@@ -22,6 +23,7 @@

 		cols[HEX]    = display->black;

 		cols[ASCII]  = allocimage(display, Rect(0,0,1,1), screen->chan, 1, DGreygreen);

 		cols[HHEX]	 = display->black;

+		cols[DHEX]	 = allocimage(display, Rect(0,0,1,1), screen->chan, 1, 0xAAAAAAFF);

 		cols[HIGH]   = allocimage(display, Rect(0,0,1,1), screen->chan, 1, 0xCCCCCCFF);

 		cols[SCROLL] = allocimage(display, Rect(0,0,1,1), screen->chan, 1, 0x999999FF);

 	}

--- a/vexed.c

+++ b/vexed.c

@@ -81,6 +81,7 @@

 int nsbuf;

 char  sstr[256] = {0};

 int sindex = -1;

+int dimnul;

 int

 hexval(Rune k)

@@ -386,6 +387,7 @@

 	char b[8] = {0}, *s;

 	Point p;

 	Point p2;

+	Image *c;

 	y = viewr.min.y + line * font->height;

 	index = (line + offset)*16;

@@ -412,7 +414,8 @@

 			p = stringnbg(screen, p, cols[HHEX], ZP, font, b, n, cols[HIGH], ZP);

 			p2 = stringnbg(screen, p2, cols[BACK], ZP, font, s, 1, cols[ASCII], ZP);

 		}else{

-			p = stringn(screen, p, cols[HEX], ZP, font, b, n);

+			c = dimnul && buf.data[index+i] == 0 ? cols[DHEX] : cols[HEX];

+			p = stringn(screen, p, c, ZP, font, b, n);

 			p2 = stringn(screen, p2, cols[ASCII], ZP, font, s, 1);

 		}

 		hs = 0;

@@ -821,9 +824,13 @@

 	scrolling = 0;

 	lastbuttons = 0;

 	reverse = 0;

+	dimnul = 0;

 	ARGBEGIN{

 	case 'b':

 		reverse = ~0xFF;

+		break;

+	case 'd':

+		dimnul = 1;

 		break;

 	default:

 		usage();