node.js toString encoding

Question

I have file encoded with koi8-u

I need to just copy this file, but, through toString()

fs = require('fs')
fs.readFile('fileOne',function(e,data){
    data = data.toString() // now encoding is damaged

    ???  // my code must be here

    fs.writeFile('fileTwo',data)
})

I tried iconv it back using different charsets but with no success. Thanks!

@TheHippo , if I add 'utf8' or 'ascii' encoding to both, read and write, I get the same and there is no encoding for koi8 there ;( — igor
– igor, Commented Jun 6, 2013 at 15:02
have you tried binary? Why do you need a string? Couldn't this be done with Buffer or streams? — TheHippo
– TheHippo, Commented Jun 6, 2013 at 15:21
@TheHippo Thanks! I tried binary for writeFile and toString and it solved my problem, so you can post it as answer and I will accept it — igor
– igor, Commented Jun 6, 2013 at 21:43

TheHippo · Accepted Answer · 2016-01-05 16:25:24Z

6

You need to write and read everything with binary encoding:

There should be two ways to do this:

Read data as Buffer:

fs = require('fs')
fs.readFile('fileOne', function(e, data){
    // data is a buffer
    buffer = data.toString('binary')


    fs.writeFile('fileTwo', {
        'encoding': 'binary'
    }, buffer);
});

Read data as binary encoded string:

fs = require('fs')
fs.readFile('fileOne', {
        'encoding': 'binary'
    }, function(e, data){
        // data is a string

        fs.writeFile('fileTwo', {
            'encoding': 'binary'
        }, data);
});

edited Jan 5, 2016 at 16:25

answered Jun 7, 2013 at 11:06

TheHippo

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