New full-screen message editor (SBBSedit), needs work.

exec/sbbsedit.js

+// sbbsedit.js
+
+// Full-screen message editor for Synchronet v3.10+
+
+// $Id$
+
+const REVISION = "$Revision$".split(' ')[1];
+
+const debug=false;
+
+// Message header display format
+var hdr_fmt	= "\1b\1h%-4s\1n\1b: \1h\1c%.60s\1>\r\n";
+var stat_fmt	= "\1h\1w\0014 SBBSedit " + REVISION + " - Type \1y/?\1w for help";
+if(debug)
+	stat_fmt += " row=%d l=%d ";
+stat_fmt+="\1>\1n";
+var columns	= 80;
+var tab_size	= 4;
+
+load("sbbsdefs.js");
+
+if(!argc) {
+	alert("No filename specified");
+	exit();
+}
+
+var subj,to,from;
+var row = 0;
+var rows = console.screen_rows;
+var fname = argv[0];
+var line = new Array();
+
+f = new File(fname);
+if(f.open("r")) {
+	line = f.readAll();
+	f.close();
+	print("Read " + line.length + " lines");
+}
+
+console.attributes = LIGHTGRAY;
+console.clear();
+
+drop_file = new File(system.node_dir + "editor.inf");
+if(drop_file.exists && drop_file.open("r")) {
+	info = drop_file.readAll();
+	delete drop_file;
+
+	subj=info[0];
+	to=info[1];
+	from=info[3];
+}
+
+show_header();
+
+show_tabline();
+
+home = console.ansi_getxy();
+row = home.y;
+
+var l=0;
+if(line.length)
+	show_text(0);
+update_status();
+
+console.getstr_offset=0;
+
+var getstr_mode = K_EDIT|K_MSG|K_WRAP|K_NOCRLF|K_LEFTEXIT;
+
+while(bbs.online) {
+	update_status();
+	console.clearline();
+	console.write("\r");	/* make sure we're at column 0, always */
+	str=line[l];
+	if(str==undefined)
+		str="";
+	str = console.getstr(str,columns-1,getstr_mode);
+
+	/* Allow "inline" cursor up/down movement using getstr_offset */
+	if(console.status&(CON_UPARROW|CON_DOWNARROW) && console.getstr_offset!=str.length) {
+		getstr_mode|=K_USEOFFSET;
+		console.beep();
+	} else
+		getstr_mode&=~K_USEOFFSET;
+
+	/* Commands */
+	switch(str.toLowerCase()) {
+		case "/s":
+			if(!f.open("w"))
+				alert("Error " + errno + " opening " + f.name);
+			else {
+				f.writeAll(line);
+				f.close();
+			}
+			/* fall-through */
+		case "/abt":
+			console.clear();
+			exit();
+			break;
+		case "/clr":
+			line = new Array();
+			console.ansi_gotoxy(home);
+			show_text(0);
+			continue;
+		case "/?":
+		case "/help":
+			console.clear();
+			bbs.menu("editor");
+			redraw(l);
+			continue;
+		case "/attr":
+			console.clear();
+			bbs.menu("attr");
+			redraw(l);
+			continue;
+		case "/l":
+			redraw(l);
+			continue;
+		case "/d":	/* Delete current line */
+			line.splice(l,1);
+			show_text(0);
+			continue;
+	}
+
+	line[l]=str;
+
+	if(console.status&(CON_UPARROW|CON_BACKSPACE|CON_LEFTARROW)) {
+		if(console.status&CON_BACKSPACE && str.length==0) {
+			/* Delete line */
+			line.splice(l,1);
+			if(l) l--;
+			if(row>home.y) {
+				console.ansi_up();
+				row--;
+			}
+			continue;
+		}
+		if(l) {
+			l--;
+			if(row>home.y) {
+				console.ansi_up();
+				row--;
+			} else
+				show_text(l);
+		}
+		console.write("\r");
+	} else {
+		l++;
+		if(row+1>=rows)
+			l=show_text(first_line(l,row));
+		else {
+			if(!console.wordwrap.length)
+				console.crlf();
+			row++;
+		}
+	}
+}
+
+console.clear();
+exit();
+
+function show_text(begin)
+{
+	var save_pos = console.ansi_getxy();
+
+	console.ansi_gotoxy(home);
+
+	row=home.y;
+	for(var l=begin; row<rows; l++,row++) {
+		console.clearline();
+		if(l < line.length)
+			console.write(line[l]);
+		if(row<rows-1)
+			console.crlf();
+	}
+
+	console.ansi_gotoxy(save_pos.x, row=save_pos.y);
+
+	return(l-1);
+}
+
+function update_status()
+{
+	console.ansi_save();
+	console.ansi_gotoxy(1,rows);
+	printf(stat_fmt,row,l);
+	console.ansi_restore();
+}
+
+function show_header()
+{
+	if(subj!=undefined)
+		printf(hdr_fmt, "Subj", subj);
+	if(to!=undefined)
+		printf(hdr_fmt, "To",	to);
+	if(from!=undefined)
+		printf(hdr_fmt, "From", from);
+}
+
+function show_tabline()
+{
+	/* Display tab line */
+	for(i=0;i<(columns-1);i++)
+		if(i && (i%tab_size)==0) {
+			if((i%(tab_size*2))==0)
+				console.print('|');
+			else
+				console.print(ascii(254));
+		} else
+			console.print(ascii(250));
+	console.crlf();
+}
+
+function redraw(l)
+{
+	save_row=row;
+	console.attributes=LIGHTGRAY;
+	console.clear();
+	show_header();
+	show_tabline();
+	console.attributes=LIGHTGRAY;
+	show_text(first_line(l,row));
+	console.ansi_gotoxy(1,row=save_row);
+}
+
+function first_line(l,row)
+{
+	return(l-(row-home.y));
+}
+
+/* End of edit.js */
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