Op zaterdag 17 januari 2015 19:19:13 UTC+1 schreef Luca Morandini:
>
> On 17/01/15 03:21, Roelof Wobben wrote:
> >
> > Does anyone have a tip if this can be done and how I can do this ?
>
> var fs= require("fs");
> var stream= require("stream");
> var util= require("util");
> var inFile= fs.createReadStream("in.txt", {encoding: "utf8"});
> var outFile= fs.createWriteStream("out.txt");
>
> var UpperTransform = function(options) {
> if (!(this instanceof UpperTransform)) {
> return new UpperTransform(options);
> }
> stream.Transform.call(this, options);
> };
> util.inherits(UpperTransform, stream.Transform);
>
> UpperTransform.prototype._transform = function(line, enc, done) {
> this.push(line.toUpperCase());
> done();
> };
>
> var upper = new UpperTransform({ objectMode: true });
>
> upper.on("error", function(err) {
> console.log(err)
> });
>
> inFile.pipe(upper).pipe(outFile);
>
> Enjoy !
>
> Luca Morandini
> Data Architect - AURIN project
> Melbourne eResearch Group
> Department of Computing and Information Systems
> University of Melbourne
>
>
>
Thanks, now I see why plugin like through are easier to use and to
understand.
Roelof
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