Added support for ^A+ and ^A- to push (save) and pop (restore) attributes.

This will be handy for correctly converting colored HTML text to ANSI.

src/sbbs3/con_out.cpp

@@ -412,9 +412,16 @@ void sbbs_t::ctrl_a(char x)
 		case ')':   /* turn echo back on */
 			console&=~CON_ECHO_OFF;
 			break;
-		case '-':								/* turn off all attributes if */
-			if(atr&(HIGH|BLINK|BG_LIGHTGRAY))	/* high intensity, blink or */
-				attr(LIGHTGRAY);				/* background bits are set */
+		case '+':	/* push current attribte */
+			if(attr_sp<sizeof(attr_stack))
+				attr_stack[attr_sp++]=curatr;
+			break;
+		case '-':	/* pop current attribute OR optimized "normal" */
+			if(attr_sp>0)
+				attr(attr_stack[--attr_sp]);
+			else									/* turn off all attributes if */
+				if(atr&(HIGH|BLINK|BG_LIGHTGRAY))	/* high intensity, blink or */
+					attr(LIGHTGRAY);				/* background bits are set */
 			break;
 		case '_':								/* turn off all attributes if */
 			if(atr&(BLINK|BG_LIGHTGRAY))		/* blink or background is set */

src/sbbs3/main.cpp

@@ -2077,6 +2077,7 @@ sbbs_t::sbbs_t(ushort node_num, DWORD addr, char* name, SOCKET sd,
 	telnet_last_rxch=0;
 	sys_status=lncntr=tos=criterrs=keybufbot=keybuftop=lbuflen=slcnt=0L;
 	curatr=LIGHTGRAY;
+	attr_sp=0;	/* attribute stack pointer */
 	errorlevel=0;
 	logcol=1;
 	logfile_fp=NULL;

src/sbbs3/putmsg.cpp

@@ -54,6 +54,7 @@ char sbbs_t::putmsg(char HUGE16 *str, long mode)
 	int 	orgcon=console,i;
 	ulong	l=0,sys_status_sav=sys_status;
 
+	attr_sp=0;	/* clear any saved attributes */
 	tmpatr=curatr;	/* was lclatr(-1) */
 	if(!(mode&P_SAVEATR))
 		attr(LIGHTGRAY);
@@ -250,6 +251,7 @@ char sbbs_t::putmsg(char HUGE16 *str, long mode)
 	if(mode&P_HTML)
 		putcom("\x02");
 
+	attr_sp=0;	/* clear any saved attributes */
 	/* Restore original settings of Forced Pause On/Off */
 	sys_status&=~(SS_PAUSEOFF|SS_PAUSEON);
 	sys_status|=(sys_status_sav&(SS_PAUSEOFF|SS_PAUSEON));

src/sbbs3/sbbs.h

@@ -244,6 +244,8 @@ public:
 	time_t 	timeout;		/* User inactivity timeout reference */
 	ulong 	timeleft_warn;	/* low timeleft warning flag */
 	uchar 	curatr; 		/* Current Text Attributes Always */
+	uchar	attr_stack[64];	/* Saved attributes (stack) */
+	int 	attr_sp;		/* Attribute stack pointer */
 	long 	lncntr; 		/* Line Counter - for PAUSE */
 	long 	tos;			/* Top of Screen */
 	long 	rows;			/* Current number of Rows for User */

src/sbbs3/str_util.c

@@ -442,7 +442,8 @@ BOOL DLLCALL validattr(char a)
 {
 
 	switch(toupper(a)) {
-		case '-':   /* clear        */
+		case '+':	/* push attr	*/
+		case '-':   /* pop attr		*/
 		case '_':   /* clear        */
 		case 'B':   /* blue     fg  */
 		case 'C':   /* cyan     fg  */