Local splitmessage

commands/util/eval.js

@@ -2,7 +2,7 @@
 const util = require('util');
 const discord = require('discord.js');
 const tags = require('common-tags');
-const { escapeRegex } = require('../../util/Util');
+const { escapeRegex, splitMessage } = require('../../util/Util');
 const Command = require('../../framework/Command');
 
 const nl = '!!NL!!';
@@ -88,14 +88,14 @@ module.exports = class EvalCommand extends Command {
 		const prepend = `\`\`\`javascript\n${prependPart}\n`;
 		const append = `\n${appendPart}\n\`\`\``;
 		if (input) {
-			return discord.splitMessage(tags.stripIndents`
+			return splitMessage(tags.stripIndents`
 				*Executed in ${hrDiff[0] > 0 ? `${hrDiff[0]}s ` : ''}${hrDiff[1] / 1000000}ms.*
 				\`\`\`javascript
 				${inspected}
 				\`\`\`
 			`, { maxLength: 1900, prepend, append });
 		} else {
-			return discord.splitMessage(tags.stripIndents`
+			return splitMessage(tags.stripIndents`
 				*Callback executed after ${hrDiff[0] > 0 ? `${hrDiff[0]}s ` : ''}${hrDiff[1] / 1000000}ms.*
 				\`\`\`javascript
 				${inspected}

util/Util.js

@@ -408,4 +408,33 @@ module.exports = class Util {
 		if (spoilers !== 0 && (spoilers && (spoilers % 2))) clean += '||';
 		return clean;
 	}
+
+	static splitMessage(text, { maxLength = 2000, char = '\n', prepend = '', append = '' } = {}) {
+		text = Util.verifyString(text);
+		if (text.length <= maxLength) return [text];
+		let splitText = [text];
+		if (Array.isArray(char)) {
+			while (char.length > 0 && splitText.some(elem => elem.length > maxLength)) {
+				const currentChar = char.shift();
+				if (currentChar instanceof RegExp) {
+					splitText = splitText.flatMap(chunk => chunk.match(currentChar));
+				} else {
+					splitText = splitText.flatMap(chunk => chunk.split(currentChar));
+				}
+			}
+		} else {
+			splitText = text.split(char);
+		}
+		if (splitText.some(elem => elem.length > maxLength)) throw new RangeError('SPLIT_MAX_LEN');
+		const messages = [];
+		let msg = '';
+		for (const chunk of splitText) {
+			if (msg && (msg + char + chunk + append).length > maxLength) {
+				messages.push(msg + append);
+				msg = prepend;
+			}
+			msg += (msg && msg !== prepend ? char : '') + chunk;
+		}
+		return messages.concat(msg).filter(m => m);
+	}
 };