Language improvements

* fixed some English words always appearing in small letters, when some should be capitalized (I, Friday, December, etc...)"

* fixed Bulgarian words that should have been capitalized, but were not

* fixed mixed case suggestions priority not updating

* optimized dictionary loading (it's more than 2x faster now)

* fixed the last words of dictionaries not being loaded

scripts/capitalize-dictionary-words.js

@@ -0,0 +1,95 @@
+const { basename } = require('path');
+const { createReadStream, existsSync } = require('fs');
+
+
+function printHelp() {
+	console.log(`Usage ${basename(process.argv[1])} DICTIONARY-FILE-NAME.txt LIST-OF-CAPITALIZED-WORDS.txt MIN-WORD-LENGTH LOCALE`);
+	console.log('Capitalizes a word list using capitalized words in another list.');
+	console.log('\nMIN-WORD-LENGTH must be a positive number.');
+	console.log('LOCALE could be any valid JS locale, for exmaple: en, en-US, etc...');
+}
+
+
+
+function validateInput() {
+	if (process.argv.length < 6) {
+		printHelp();
+		process.exit(1);
+	}
+
+
+	if (!existsSync(process.argv[3])) {
+		console.error(`Failure! Could not find list-of-capitals file "${process.argv[3]}."`);
+		process.exit(2);
+	}
+
+
+	if (!existsSync(process.argv[2])) {
+		console.error(`Failure! Could not find dictionary file "${process.argv[2]}."`);
+		process.exit(2);
+	}
+
+	const minWordLength = Number.parseInt(process.argv[4]);
+	if (Number.isNaN(minWordLength) || minWordLength < 0) {
+		console.error(`Failure! The minimum word length must be a positive number.`);
+		process.exit(2);
+	}
+
+	return { capitalsFileName: process.argv[3], dictionaryFileName: process.argv[2], locale: process.argv[5], minWordLength };
+}
+
+
+async function capitalize({ dictionaryFileName, capitalsFileName, locale, minWordLength }) {
+	// read the dictionary
+	let lineReader = require('readline').createInterface({
+	  input: createReadStream(dictionaryFileName)
+	});
+
+	const words = {};
+	for await (const line of lineReader) {
+		words[line] = true;
+	}
+
+
+	// convert the dictionary words using the second file
+	lineReader = require('readline').createInterface({
+	  input: createReadStream(capitalsFileName)
+	});
+
+	for await (const capitalizedWord of lineReader) {
+		if (capitalizedWord.length < minWordLength) {
+			continue;
+		}
+
+		const lowercaseWord = capitalizedWord.toLocaleLowerCase(locale);
+		if (words[lowercaseWord]) {
+			delete words[lowercaseWord];
+			words[capitalizedWord] = true;
+		}
+
+		const possessiveLowercaseWord = `${lowercaseWord}'s`;
+		if (words[possessiveLowercaseWord]) {
+			delete words[possessiveLowercaseWord];
+			words[`${capitalizedWord}'s`] = true;
+		}
+	}
+
+	return Object.keys(words);
+}
+
+
+
+function printWords(wordList) {
+	if (!Array.isArray(wordList)) {
+		return;
+	}
+
+	wordList.forEach(w => console.log(w));
+}
+
+
+
+/** main **/
+capitalize(validateInput())
+	.then(words => printWords(words))
+	.catch(e => console.error(e));