haxe.zip.Uncompress not working for javascript?

[Nathan Hüsken]

Hey,

The documentation here says:
http://api.haxe.org/haxe/zip/Uncompress.html that uncompress is
available on all platforms.

But when I try to run haxe.zip.Reader.unzip from javascript, I get an
exception:

Uncompress.hx: Not implemented for this platform.

Is the documentation wrong?
Can I uncompress zips in javascript?

Thanks!
Nathan

[clemos]

Hi,

You should try using format: https://github.com/HaxeFoundation/format/blob/master/format/zip/Reader.hx

BTW this whole haxe.zip.* vs format.zip.* vs _std.haxe.zip.* (vs format.tools.Inflate / Deflate, etc) APIs should be cleaned somehow.

++

Clément

Nathan

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[Nathan Hüsken]

Hey,

Looking at:
https://github.com/HaxeFoundation/format/blob/master/format/zip/Reader.hx

I read:


#if haxe3

typedef Reader = haxe.zip.Reader;

#else
...


So it does not really make a difference. And If I try it out I get the
same error.

I can not find any implementation for javascript. Am I missing something?

Thanks!
Nathan

On 01.02.2016 15:05, clemos wrote:
> Hi,
>
> You should try using
> format: https://github.com/HaxeFoundation/format/blob/master/format/zip/Reader.hx
>
> BTW this whole haxe.zip.* vs format.zip.* vs _std.haxe.zip.* (vs
> format.tools.Inflate / Deflate, etc) APIs should be cleaned somehow.
>
> ++
> Clément
>
> On Mon, Feb 1, 2016 at 2:54 PM, Nathan Hüsken <nathan....@posteo.de
> <mailto:nathan....@posteo.de>> wrote:
>
> Hey,
>
> The documentation here says:
> http://api.haxe.org/haxe/zip/Uncompress.html that uncompress is
> available on all platforms.
>
> But when I try to run haxe.zip.Reader.unzip from javascript, I get an
> exception:
>
> Uncompress.hx: Not implemented for this platform.
>
> Is the documentation wrong?
> Can I uncompress zips in javascript?
>
> Thanks!
> Nathan
>
> --
> To post to this group haxe...@googlegroups.com

> <mailto:haxe...@googlegroups.com>

[Justin L Mills]

I am sure I found it was not implemented in the past for Javascript only
c++ and neko but that could have changed.

I don't know anything about webworkers but something like this looks
portable maybe then make a request for MIT license from authors?

https://github.com/gildas-lormeau/zip.js/blob/master/WebContent/inflate.js

Not clear if it's structured quite the same as the "format" structures
but perhaps it would give inspiration. Or maybe just use it untyped.

[underscorediscovery]

I use haxe.zip.Uncompress.run(compressed_bytes); without any trouble on the js target.

For input I use haxe.zip.Compress.run(source_bytes, 9);

I also found it odd that throw exists in the std lib but the above seemed to do what I needed.

[Nathan Hüsken]

Hey,

Thanks for the tip. So you do:

haxe.zip.Uncompress.run(entry.data)

where entry is is part of an array, returned by haxe.zip.Reader.readZip?

If I do that, I get:

Uncaught Error: Invalid datahaxe_zip_InflateImpl.inflateLoop @
InflateImpl.hx:259haxe_zip_InflateImpl.readBytes @
InflateImpl.hx:151haxe_zip_InflateImpl.run @
InflateImpl.hx:368haxe_zip_Uncompress.run @
Uncompress.hx:41xlsx_XLSX.modifyXlsx @ XLSX.hx:119(anonymous function) @
AssignmentListDisplay.hx:103tink_core__$Callback_CallbackList_$Impl_$.invoke
@ Callback.hx:62tink_core_FutureTrigger.trigger @
Future.hx:164req.onreadystatechange @ Utils.hx:33

Idea on that?

Thanks!
Nathan

On 02.02.2016 04:40, underscorediscovery wrote:
> I use *haxe.zip.Uncompress.run(compressed_bytes); *without any trouble
> on the js target.
>
> For input I use *haxe.zip.Compress.run(source_bytes, 9);*
> *
> *

> <nathan....@posteo.de <javascript:>

> > <mailto:nathan....@posteo.de <javascript:>>> wrote:
> >
> > Hey,
> >
> > The documentation here says:
> > http://api.haxe.org/haxe/zip/Uncompress.html
> <http://api.haxe.org/haxe/zip/Uncompress.html> that uncompress is
> > available on all platforms.
> >
> > But when I try to run haxe.zip.Reader.unzip from javascript, I
> get an
> > exception:
> >
> > Uncompress.hx: Not implemented for this platform.
> >
> > Is the documentation wrong?
> > Can I uncompress zips in javascript?
> >
> > Thanks!
> > Nathan
> >
> > --

> > To post to this group haxe...@googlegroups.com <javascript:>
> > <mailto:haxe...@googlegroups.com <javascript:>>
> > http://groups.google.com/group/haxelang?hl=en

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[Sven Bergström]

No I don't use any other zip api calls for what I need.

I think the end result is different, I'm merely compressing/uncompressing bytes, I don't make a zip file or entries from it or anything. 

I wanted to just mention the compress/uncompress part worked as I expected, and I found it odd the throw exists in standard lib too :)

For clarity, to compress/uncompress as I am:

var source_data: haxe.io.Bytes = ....; 
var compressed_data = haxe.zip.Compress.run(source_data, 9);

...

var source_data = haxe.zip.Uncompress.run(compressed_data);

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[Nathan Hüsken]

Ok, thanks.

I converted my zip files now to use no compression. Works for now, but
being able to uncompress would be nice.

Best Regards and Thanks!
Nathan

[Daniel Uranga]

This one https://github.com/nodeca/pako looks really nice. Maybe using
externs for that would be a better solution.

[Nathan Hüsken]

Thanks for the link. I will try it.