server/amusement.js: Pseudo-code on how `#<` **might** be able to work.. Eh. I can"t be bothered with this anymore right now.

Fortune for doushio's current commit: Blessing − 吉

common.js

@@ -407,9 +407,13 @@ OS.karada = function (body) {
     return output;
 }
 
-var dice_re = /(#tea|#dame|#tutturu|#muri|#flip|#when|#du|#fun|#fcount|#test|#sleep|#janken|#8ball|#imfey|#\?(?:\[(?:\w,*)+\])?|#\d{0,2}d\d{1,4}(?:[+-]\d{1,4})?)/i;
+var dice_re = /(#tea|#dame|#tutturu|#muri|#flip|#when|#du|#fun|#fcount|#test|#sleep|#janken|#8ball|#imfey|#<(.*)|#\?(?:\[(?:\w,*)+\])?|#\d{0,2}d\d{1,4}(?:[+-]\d{1,4})?)/i;
 exports.dice_re = dice_re;
 
+//TODO: XXX: Does this need to be exposed to the client? I don't think it does.
+const ARBITRARY = config.ARBITRARY || {}; 
+exports.lookup_arbitrary = ARBITRARY;
+
 var WHEN = [
     'Now', null, null, null, null,
     'Later', null, null, null, null,
@@ -476,18 +480,7 @@ function parse_dice(frag)
     {
 	return {n:1, faces:2};
     }
-    if (/^#\?/.test(frag))
-    {
-	var  l = frag.slice(2).split(/(\[|\]|,)/);
-	var j =0;
-	for(var i=0;i<l.length;i++)
-	{
-	    if(/(\[|\]|,)/.test(l[i])) continue;
-	    if(l[i].length>0) j+=1;
-	}
-	return {n:1, faces: j};
-    }
-    if (frag == '#fun' || frag == '#fcount' || frag == '#du')
+     if (frag == '#fun' || frag == '#fcount' || frag == '#du')
 	return {n: 1, faces: 2};
     if (frag == '#tea')
 	return {n: 1, faces: 2};
@@ -505,6 +498,23 @@ function parse_dice(frag)
 	return {n: 1, faces: 2};
     if (frag == '#janken')
 	return {n: 1, faces: 3};
+    if (/^#\?/.test(frag))
+    {
+	var  l = frag.slice(2).split(/(\[|\]|,)/);
+	var j =0;
+	for(var i=0;i<l.length;i++)
+	{
+	    if(/(\[|\]|,)/.test(l[i])) continue;
+	    if(l[i].length>0) j+=1;
+	}
+	return {n:1, faces: j};
+    }
+    if (/^#</.test(frag)) {
+	const rest = frag.slice(2);
+	if (rest.length) 
+        	return {n: 1, faces: 3};
+	else	return {n: 0, faces: 3};
+    }
     var m = frag.match(/^#(\d*)d(\d+)([+-]\d+)?$/i);
     if (!m)
 	return false;

server/amusement.js

@@ -119,6 +119,39 @@ exports.roll_dice = function (frag, post, extra) {
 	else if(ms[i] == '#fcount') {
 	    dice.push([pyu]);
 	}
+	else if(ms[i].startsWith('#<'))
+	{
+		//TODO: Stupid hack on how to make this work with `async () =>` results... (pseudo-code, maybe come back to this when I can be bothered to write the needed utils, figure out how node capture groups works, and all the other bs needed...)
+		/* XXX: [[psuedo-code]]
+		const frag = ms[i].slice(2);
+		const lookup_result = match_regexes_in_object_keys(config.ARBITRARY, frag); // { lookup: <value>, key: <regex>, matches: <regex match groups> };
+		const lookup = lookup_result.lookup;
+
+		// XXX: Sets the extra.new_dice, and appends post.dice one value: `result`.
+		const set_dice = (result) => {
+			const dice = result ? [result] : [];
+			extra.new_dice = dice;
+			dice = post.dice ? post.dice.concat(dice) : dice;
+			post.dice = dice;
+			return dice;
+		};
+
+		if(!lookup) ;// XXX: no match
+		else if(is_function(lookup))
+		{ let string = lookup(frag, lookup_result.matches || {}, lookup_result.key); 
+		  dice.push([string]); }
+		else if(is_string(lookup)) dice.push([string]);
+		else if(is_promise(lookup) {
+			// We need to insert this via `attachToPost`. So we'll set `extra.new_dice` to be sure it's hit.
+			//set_dice("..."); //XXX: TODO: Won't this just mean the next result is *appeneded*, and treated as a result for the next command? So, we won't set an intermidiate, we'll just wait on `lookup().then(...)`
+			// When async lambda completes, we'll set `extra.new_dice()` and append `post.dice()` again.
+			lookup(frag, lookup_result.matches || {}, lookup_result.key).then(set_dice).catch((err) => {
+				set_dice("Error: " + (err || "(unbound)"));
+			});
+			return; // XXX: Important to return here so we don't hit the below `if(dice.length)`
+		} else ; //XXX no match
+		*/
+	}
 	else {
 	    var info = common.parse_dice(ms[i]);
 	    if (!info)
@@ -142,6 +175,7 @@ exports.roll_dice = function (frag, post, extra) {
 	if (dice.length + exist > rollLimit)
 	    dice = dice.slice(0, Math.max(0, rollLimit - exist));
 	if (dice.length) {
+	    // TODO: for `#<` to work: The key to hitting `attachToPost` at all is in `extra.new_dice` vs `post.dice`
 	    extra.new_dice = dice;
 	    dice = post.dice ? post.dice.concat(dice) : dice;
 	    post.dice = dice;