I'm trying to parse emcmf file but didn't find any information about it.
As I understand, there is a raw file wrapped with the header.
Another point that I got is that the raw file starts at line 660.
How can I find the end of the raw file?
Does anybody know how to parse *.emcmf file format?
Related
If file is dragged and dropped from file explorer it has FileAttributes.ReadOnly flag for StorageFile.Attributes parameter. In that case using StorageFile api to write to file will give error. How to write to file in this case??
In this case PathIO api can be used to write to file (unless file is a system file). Convert data to write into bytes array and then add following code to write to file:
await PathIO.WriteBytesAsync(file.Path, bytes);
This will write to these files without any error. You don't need any additional permission like broadFileSystemAccess for this.
I have a csv file that is tared and zipped. So I have test.tar.gz.
I would like, through text file input, read csv file.
I try this tar:gz:file://C:/test/test.tar.gz!/test.tar! use wildcard like ".*\.csv".
But it sometime can't read success.
It throws Exception
org.apache.commons.vfs.FileNotFolderException:
Could not list the contents of
"tar:gz:file:///C:/test/test.tar.gz!/test.tar!/"
because it is not a folder.
I use windows8.1, pdi 5.2
Where it might be wrong?
For a compressed file csv reading, "Text File Input" step in Pentaho Kettle only supports the first files inside the compressed folder(either in Zip/GZip file). Check the Pentaho Wiki in the compression section.
Now for your issue, try removing the wildcard entry since only the first file inside the zip/gzip file will be read. (as explained above)
I have placed a sample code containing both reading zip and gzip files. Check it here.
Hope it helps :)
I have to get a file through PDI based on the filename and i want to select file with name matching pattern eligible_for_push which has to be at the end.The file can be .txt or .csv
Please Help
Thanks
There are two part to your query:
1. Finding all files ending with "eligible_for_push":
You cannot use regex to find this sort of pattern (at least i am not aware of). So as an alternate do the following:
Search all the files in the path using "Get Filename" steps. Use modified Javascript to find out the file ending with the above pattern. Check the JS file below.
2. Files can be ".txt" or ".csv":
You can use the below regex/wildcard to find choose between either .txt or .csv
.*\.txt|.*\.csv
Note : Use this code once you have filtered out the files ending with "eligible_for_push". The above JS ignore all the file patterns. After that use the second step to sort out all the .txt or .csv files.
Hope it helps :)
I would like to parse the file location information in an M3U playlist into fully qualified paths. The possible formats in M3U files seem to be:
c:\mydir\songs\tune.mp3
\songs\tune.mp3
..\songs\tune.mp3
For the first example, just leave it alone. For the second add the directory that the playlist resides in so it would become c:\playlists\songs\tune.mp3 and the same for the third case so it would also become: c:\playlists\songs\tune.mp3.
I'm using vb under VS2008 and I can't find a way to recognise each of the potential location formats in the M3U file. System.IO.Path offers no solution that I can find. I've searched extensively for terms like "convert relative path to absolute" but no luck.
Any advice appreciated.
Thanks.
Write a batch script that just reads the m3u file line by line, and then just parse each line looking for ":" , and for "..", and edit the string as needed. You can then just write the "converted" strings to another file...
I have a form which allows a user to upload a file to the server. How can I validate that the uploaded file is in fact the expected format (CSV, or at least validate that it is a text file) in ColdFusion 8?
For simple formats like CSV, just check yourself, for example via regex.
<cffile action="read" file="#uploadedFile#" variable="contents" charset="UTF-8">
<cfset LooksLikeCSV = REFind("^([^;]*;)+[^;]*$", contents)>
You can place additional checks with regard to file size limits or forbidden characters.
For other file formats, you can check for header signatures that occur in the first few bytes of the file.
You could even write a full parser for your expected file format - for CSV validation, you could do a ListToArray() at CR/LF and check each line individually against a regex. XML should work pretty straightforward as well - just try to pass it to XmlParse(). Binary formats like images are a little more difficult, but libraries exist there as well.
I dont know if it can help you but Ben Nadel wrote excellents posts about CSV:
http://www.bennadel.com/blog/483-Parsing-CSV-Data-Using-ColdFusion.htm
http://www.bennadel.com/blog/976-Regular-Expressions-Make-CSV-Parsing-In-ColdFusion-So-Much-Easier-And-Faster-.htm
http://www.bennadel.com/blog/501-Parsing-CSV-Values-In-To-A-ColdFusion-Query.htm
I think it's as simple as specifying the accept value in cffile ...Unfortunately the CF8 docs don't specify the value as part of the info for cffile ... It's under file management ...
<cffile action=”upload” filefield=”filename” destination=”#destination#” accept=”text/csv”>
CF8 » Controlling the type of file uploaded