Move most of the logic from postmeme.js to reusable meme_chooser.js lib

e.g. for use in automsg.js

exec/load/meme_chooser.js

+// Meme selection/chooser library
+// @format.tab-size 4, @format.use-tabs true
+
+// Supported options
+//   color (default: 0)
+//   border (default: 0)
+//   random (default: false)
+//   max_length (default: 500)
+//   width (default: 39)
+//   justify (default: center)
+
+"use strict";
+require("key_defs.js", "KEY_LEFT");
+
+var lib = load({}, "meme_lib.js");
+var options = {};
+
+function choose(border)
+{
+	console.mnemonics(format("~Border, ~Color, ~Justify, ~@Quit@, or [Select]: "));
+	var ch = console.getkeys("BCJ" + KEY_LEFT + KEY_RIGHT + "\r" + console.next_key + console.prev_key + console.quit_key, lib.BORDER_COUNT);
+	if (typeof ch == "number")
+		return ch - 1;
+	switch (ch) {
+		case console.quit_key:
+			return false;
+		case '\r':
+			return true;
+		case 'C':
+		case 'J':
+		case 'B':
+			return ch;
+		case KEY_UP:
+		case KEY_LEFT:
+		case console.prev_key:
+			return console.prev_key;
+		default:
+			return console.next_key;
+	}
+}
+
+function main(text, options)
+{
+	var attr = [
+		"\x01H\x01W\x011",
+		"\x01H\x01W\x012",
+		"\x01H\x01W\x013",
+		"\x01H\x01W\x014",
+		"\x01H\x01W\x015",
+		"\x01H\x01W\x016",
+		"\x01N\x01K\x017",
+	];
+	var justify = options.justify || 0;
+	var border = options.border || 0;
+	var color = options.color || 0;
+	if (options.random) {
+		border = random(lib.BORDER_COUNT);
+		color = random(attr.length);
+	}
+	var msg;
+	while (!js.terminated) {
+		msg = lib.generate(options.width || 39, attr[color % attr.length], border  % lib.BORDER_COUNT, text, justify % lib.JUSTIFY_COUNT);
+		console.clear();
+		console.attributes = WHITE | HIGH;
+		console.print(format("Meme \x01N\x01C(border \x01H%u \x01N\x01Cof \x01H%u\x01N\x01C, color \x01H%u\x01N\x01C of \x01H%u\x01N\x01C):"
+			, (border % lib.BORDER_COUNT) + 1, lib.BORDER_COUNT
+			, (color % attr.length) + 1, attr.length));
+		console.newline(2);
+		print(msg);
+		var ch = choose(border);
+		if (ch === false)
+			return false;
+		if (ch === true)
+			return msg;
+		if (typeof ch == "number")
+			border = ch;
+		else if (ch === 'C')
+			++color;
+		else if (ch === 'J')
+			++justify;
+		else if (ch === 'B')
+			++border;
+		else if (ch == console.next_key && border < lib.BORDER_COUNT - 1)
+			++border;
+		else if (ch == console.prev_key && border > 0)
+			--border;
+		else
+			console.beep();
+	}
+}
+
+main.apply(null, argv);

exec/postmeme.js

@@ -9,89 +9,18 @@
 //   width (default: 39)
 //   justify (default: center)
 
-"use strict";
-require("key_defs.js", "KEY_LEFT");
 require("sbbsdefs.js", "K_LINEWRAP");
+"use strict";
 
 var options = load({}, "modopts.js", "postmeme");
 if (!options) options = {};
-var lib = load({}, "meme_lib.js");
-
-function choose(border)
-{
-	console.mnemonics(format("~Border, ~Color, ~Justify, ~@Quit@, or [Select]: "));
-	var ch = console.getkeys("BCJ" + KEY_LEFT + KEY_RIGHT + "\r" + console.next_key + console.prev_key + console.quit_key, lib.BORDER_COUNT);
-	if (typeof ch == "number")
-		return ch - 1;
-	switch (ch) {
-		case console.quit_key:
-			return false;
-		case '\r':
-			return true;
-		case 'C':
-		case 'J':
-		case 'B':
-			return ch;
-		case KEY_UP:
-		case KEY_LEFT:
-		case console.prev_key:
-			return console.prev_key;
-		default:
-			return console.next_key;
-	}
-}
 
 console.print("\x01N\x01Y\x01HWhat do you want to say?\x01N\r\n");
 var text = console.getstr(options.max_length || 500, K_LINEWRAP);
 if (!text)
 	exit(0);
-var attr = [
-	"\x01H\x01W\x011",
-	"\x01H\x01W\x012",
-	"\x01H\x01W\x013",
-	"\x01H\x01W\x014",
-	"\x01H\x01W\x015",
-	"\x01H\x01W\x016",
-	"\x01N\x01K\x017",
-];
-var justify = options.justify || 0;
-var border = options.border || 0;
-var color = options.color || 0;
-if (options.random) {
-	border = random(lib.BORDER_COUNT);
-	color = random(attr.length);
-}
-var msg;
-while (!js.terminated) {
-	msg = lib.generate(options.width || 39, attr[color % attr.length], border  % lib.BORDER_COUNT, text, justify % lib.JUSTIFY_COUNT);
-	console.clear();
-	console.attributes = WHITE | HIGH;
-	console.print(format("Meme \x01N\x01C(border \x01H%u \x01N\x01Cof \x01H%u\x01N\x01C, color \x01H%u\x01N\x01C of \x01H%u\x01N\x01C):"
-		, (border % lib.BORDER_COUNT) + 1, lib.BORDER_COUNT
-		, (color % attr.length) + 1, attr.length));
-	console.newline(2);
-	print(msg);
-	var ch = choose(border);
-	if (ch === false)
-		exit(1);
-	if (ch === true)
-		break;
-	if (typeof ch == "number")
-		border = ch;
-	else if (ch === 'C')
-		++color;
-	else if (ch === 'J')
-		++justify;
-	else if (ch === 'B')
-		++border;
-	else if (ch == console.next_key && border < lib.BORDER_COUNT - 1)
-		++border;
-	else if (ch == console.prev_key && border > 0)
-		--border;
-	else
-		console.beep();
-}
 
+var msg = load("meme_chooser.js", text, options);
 if (!msg)
 	exit(0);