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js-ppt's Issues

Erroring out

I have a .ppt that's been sitting in the textract repo for a bit that I used for testing graceful error handling. In my case the error was textract does not currently extract files of type [[ application/vnd.ms-powerpoint ]]. Obviously that'll be changing.

https://github.com/dbashford/textract/blob/master/test/files/MxAgCrProd.ppt

This file throws up.

ppt MxAgCrProd.ppt 

/Users/dbashford/.nvm/v0.10.12/lib/node_modules/ppt/ppt.js:623
            if(persist) throw "unexpected second RT_PersistDirectoryAtom";
                        ^
unexpected second RT_PersistDirectoryAtom

Does not parse .pptx at all 

c:\Users\...\AppData\Roaming\npm\node_modules\ppt\node_modules\cfb\cfb.js:76
        if(m !== hexstr) throw fld + 'Expected ' + hexstr + ' saw ' + m;
                                                                    ^
Header Signature: Expected d0cf11e0a1b11ae1 saw 504b030414000600

After converting to old .ppt type 2003 year old, throw ne type of error:

$ ppt test2.ppt

c:\Users\...\AppData\Roaming\npm\node_modules\ppt\ppt.js:10
var parsenoop = function(blob, length) { throw new Error("n"); };
                                               ^
Error: n
    at Object.parsenoop [as f] (c:\Users\...\AppData\Roaming\npm\node_mo
dules\ppt\ppt.js:10:48)
    at recordhopper (c:\Users\...\AppData\Roaming\npm\node_modules\ppt\p
pt.js:22:15)
    at Object.parse_OfficeArtClientTextbox [as f] (c:\Users\...\AppData\
Roaming\npm\node_modules\ppt\ppt.js:497:2)
    at recordhopper (c:\Users\...\AppData\Roaming\npm\node_modules\ppt\p
pt.js:22:15)
    at Object.parse_OfficeArtSpContainer [as f] (c:\Users\...\AppData\Ro
aming\npm\node_modules\ppt\ppt.js:65:2)
    at recordhopper (c:\Users\...\AppData\Roaming\npm\node_modules\ppt\p
pt.js:22:15)
    at Object.parse_OfficeArtSpgrContainer [as f] (c:\Users\...\AppData\
Roaming\npm\node_modules\ppt\ppt.js:85:2)
    at recordhopper (c:\Users\...\AppData\Roaming\npm\node_modules\ppt\p
pt.js:22:15)
    at Object.parse_OfficeArtDgContainer [as f] (c:\Users\...\AppData\Ro
aming\npm\node_modules\ppt\ppt.js:51:2)
    at recordhopper (c:\Users\...\AppData\Roaming\npm\node_modules\ppt\p
pt.js:22:15)

Could you help me please with this issue! I really need this module, it is very important for me!

error 

    var custream = ppt.find('Current User');
                       ^

TypeError: ppt.find is not a function

Mistake in README.md

OS Windows 8.1
Instead of npm install ppt should be written npm install ppt -g because otherwise you will have error like. In other words it must be global module.

$ ppt
sh: ppt: command not found

Possible to expose method that returns string?

I see you are console.loging all the output. It would be nice if there was a way to call, for instance, readFile (or a new function) directly and get a string back and save the trouble of using a child process.

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