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tt9/scripts/inject-dictionary-frequencies.js

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2.4 KiB
JavaScript

const { basename } = require('path');
const { createReadStream, existsSync } = require('fs');
const { print, printError } = require('./_printers.js');
const DELIMITER = ' ';
function printHelp() {
print(`Usage ${basename(process.argv[1])} LOCALE DICTIONARY-FILE-NAME.txt WORDS-WITH-FREQUENCIES.txt --transcribed`);
print('Matches up the words from DICTIONARY-FILE-NAME with the frequencies in WORDS-WITH-FREQUENCIES file.');
print('LOCALE could be any valid JS locale, for exmaple: en, en-US, etc...');
}
function validateInput() {
if (process.argv.length < 5) {
printHelp();
process.exit(1);
}
if (!existsSync(process.argv[4])) {
printError(`Failure! Could not find the WORDS-WITH-FREQUENCIES file "${process.argv[4]}".`);
process.exit(2);
}
if (!existsSync(process.argv[3])) {
printError(`Failure! Could not find dictionary file "${process.argv[3]}".`);
process.exit(2);
}
return {
locale: process.argv[2],
dictionaryFileName: process.argv[3],
transcribed: process.argv[5] !== undefined && process.argv[5] === '--transcribed',
wordsWithFrequenciesFileName: process.argv[4]
};
}
async function inject({ wordsWithFrequenciesFileName, dictionaryFileName, locale, transcribed }) {
// read the frequencies
let lineReader = require('readline').createInterface({
input: createReadStream(wordsWithFrequenciesFileName)
});
const frequencies = new Map();
for await (const line of lineReader) {
if (!line.includes(DELIMITER)) {
continue;
}
const parts = line.split(DELIMITER);
const word = parts[0].toLocaleLowerCase(locale);
let frequency = parts.length > 1 ? Number.parseInt(parts[1]) : 0;
if (Number.isNaN(frequency) || frequency < 0) {
frequency = 0;
}
frequencies.set(word, frequency)
}
// read the dictionary words
lineReader = require('readline').createInterface({
input: createReadStream(dictionaryFileName)
});
const outputWords = [];
for await (const line of lineReader) {
let word = '';
if (transcribed) {
const parts = line.split(DELIMITER);
word = parts[0];
} else {
word = line.toLocaleLowerCase(locale);
}
outputWords.push(`${line}${ (frequencies.get(word) || 0) > 0 ? DELIMITER + frequencies.get(word) : '' }`);
}
return outputWords;
}
function printWords(wordList) {
if (Array.isArray(wordList)) {
wordList.forEach(w => print(w));
}
}
/** main **/
inject(validateInput())
.then(words => printWords(words))
.catch(e => printError(e));