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'use strict';
/******************************************************************************/
const path = process.argv[2];
if (!path) {
console.log('Add the file path, please.');
process.exit();
}
/******************************************************************************/
const fs = require('fs');
const encoding = 'utf8'; //ascii utf8 utf16le
const rl = require('readline').createInterface({
input: fs.createReadStream(path, encoding),
terminal: false,
historySize: 0
});
const logFile = fs.openSync(path.replace(/(\.[^.]+)?$/, '.-split_log$1'), 'w');
fs.writeSync(logFile, '\uFEFF', null, encoding);
const abc = Array.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ´');
const formatNumberRE = /\B(?=(?:\d{3})+$)/g;
let outFile;
let lines;
let nextChr;
let nextChrRE;
/******************************************************************************/
newPart(abc.shift());
/******************************************************************************/
rl.on('line', line => {
if (nextChr && nextChrRE.test(line)) {
newPart(nextChr);
}
fs.writeSync(outFile, `${line}\n`, null, encoding);
lines++;
}).on('close', () => {
fs.closeSync(outFile);
fs.writeSync(logFile,
`${lines.toString().replace(formatNumberRE, ' ')}\n`, null, encoding);
fs.closeSync(logFile);
});
/******************************************************************************/
function newPart(chr) {
if(outFile) {
fs.closeSync(outFile);
fs.writeSync(logFile,
`${lines.toString().replace(formatNumberRE, ' ')}\n`, null, encoding);
}
lines = 0;
outFile = fs.openSync(path.replace(/(\.[^.]+)?$/, `.${chr}$1`), 'w');
if (chr !== 'A') fs.writeSync(outFile, '\uFEFF', null, encoding);
console.log(chr);
fs.writeSync(logFile, `${chr}: `, null, encoding);
if(nextChr = abc.shift()) nextChrRE = new RegExp(`^• ${nextChr}`, 'i');
}
/******************************************************************************/
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