Reduce processing if NNN_COLORS is unset

src/nnn.c

@@ -1586,54 +1586,56 @@ static bool initcurses(void *oldmask)
 	char *colors = getenv(env_cfg[NNN_COLORS]);
 
 	if (colors || !getenv("NO_COLOR")) {
-		uint *pcode;
+		uint *pclr;
 		char ch;
 		bool ext = FALSE;
 
 		start_color();
 		use_default_colors();
 
-		if (colors && *colors == '#') {
-			char *sep = strchr(colors, ';');
+		if (colors) {
+			if (*colors == '#') {
+				char *sep = strchr(colors, ';');
 
-			if (COLORS >= 256) {
-				++colors;
-				ext = TRUE;
-
-				/*
-				 * If fallback colors are specified, set the separator
-				 * to NULL so we don't interpret separator and fallback
-				 * if fewer than CTX_MAX xterm 256 colors are specified.
-				 */
-				if (sep)
-					*sep = '\0';
-			} else {
-				colors = sep; /* Detect if 8 colors fallback is appended */
-				if (colors)
+				if (COLORS >= 256) {
 					++colors;
-			}
-		}
-
-		/* Get and set the context colors */
-		for (uchar i = 0; i <  CTX_MAX; ++i) {
-			pcode = &g_ctx[i].color;
+					ext = TRUE;
 
-			if (colors && *colors) {
-				if (ext) {
-					ch = *colors;
-					if (*++colors) {
-						*pcode = (16 * xchartohex(ch)) + xchartohex(*colors);
-						++colors;
-					} else
-						*pcode = xchartohex(ch);
+					/*
+					 * If fallback colors are specified, set the separator
+					 * to NULL so we don't interpret separator and fallback
+					 * if fewer than CTX_MAX xterm 256 colors are specified.
+					 */
+					if (sep)
+						*sep = '\0';
 				} else {
-					*pcode = (*colors < '0' || *colors > '7') ? 4 : *colors - '0';
-					++colors;
+					colors = sep; /* Detect if 8 colors fallback is appended */
+					if (colors)
+						++colors;
 				}
-			} else
-				*pcode = 4;
+			}
+
+			/* Get and set the context colors */
+			for (uchar i = 0; i <  CTX_MAX; ++i) {
+				pclr = &g_ctx[i].color;
+
+				if (*colors) {
+					if (ext) {
+						ch = *colors;
+						if (*++colors) {
+							*pclr = (16 * xchartohex(ch)) + xchartohex(*colors);
+							++colors;
+						} else
+							*pclr = xchartohex(ch);
+					} else {
+						*pclr = (*colors < '0' || *colors > '7') ? 4 : *colors - '0';
+						++colors;
+					}
+				} else
+					*pclr = 4;
 
-			init_pair(i + 1, *pcode, -1);
+				init_pair(i + 1, *pclr, -1);
+			}
 		}
 	}