[libreoffice-users] Re: Import XML files?

2012-10-04 Thread Andreas Säger
Mark Stanton wrote
 I hope not, XML is supposed to be a self defining file format surely?

It's a meta-file format. You (who defines all the XML tags) are the one and
only person able to develop import and export software for your particular
flavour of XML.

xml
BLAH foo=bar
blub x=121.43/blub
scramble crucifix=Trueertzuiopdfghjklöxcvbnm/scramble
/BLAH
/xml
How would you translate this into a spreadsheet? Is BLAH a row, a column?
What is scramble? How to deal with the attributes?

Nobody ever tells us anything about his/her user-defined file formats such
as CSV or XML. So most of the topics becaome lengthy and some remain
unsolved.

   A general importer ought to be easy, no?

 Google reveals plenty of examples about how to write XLST scritpts to
import/export user-defined XML formats into/from ODF. This is development
work just like writing macros or setting up a database.
In all those years since OOo 1.0 nobody wrote a generic XML-to-Calc tool. I
would search in the database world for existing XML tools for database
engines. Once you have the data in a connectable database, you have it it in
Calc and Writer as well.



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[libreoffice-users] Re: Import XML files?

2012-10-04 Thread Andreas Säger
FoxPro export exports database fields like this:
?xml version=1.0?Document  OrderUpdate
OrderId12345/OrderId
OrderDate01/01/2004/OrderDate
Confirmation123/Confirmation
Storage
  StorageId01/StorageId
  Quantity1450/Quantity
/Storage
Storage
  StorageId02/StorageId
  Quantity2480/Quantity
/Storage
  /OrderUpdate
/Document
It might be comparatively easy to write a Base driver for structures like
this one. A spreadsheet does not imply any such structure.

As far as I know, Excel imports arbitrary flavours of tabular XML through a
wizard analog to a CSV import wizard. You specify the column tags, the row
tags and get raw data in a spreadsheet.
In the following example each record represents one consecutive
spreadsheet row (starting at row#1) and each value represents a
consecutive column value within that row (starting at column A). First row
has column labels.
xml
record
 value type=StringID/value
 value typ=StringOrder Date/value
 value typ=StringValue/value
/record
record
 value type=Number13/value
 value type=Date2010-12-28/value
 value type=StringSome Text/value
/record
record
 value type=Number14/value
 value type=Date2010-12-31/value
 value type=StringSome Other Text/value
/record
/xml

This one represents the very same data in German tags:
xml
zeile
 wert typ=ZeichenID/wert
 wert typ=ZeichenOrder Date/wert
 wert typ=ZeichenValue/wert
/zeile
zeile
 wert typ=Zahl13/wert
 wert typ=Datum2010-12-28/wert
 wert typ=ZeichenSome Text/wert
/zeile
zeile
 wert typ=Zahl14/wert
 wert typ=Datum2010-12-31/wert
 wert typ=ZeichenSome Other Text/wert
/zeile
/xml

Other flavours of xml may describe rows within columns, railway connections
in time tables, articles and clients in invoices, ... Any tool to import
arbitrary XML into sheets needs to import text, numbers, special numbers
and blanks into columns and rows even if there is no rectangular structure
of records and fields.
If there is a database structure (like the above FoxPro XML) it needs to
import each value (number, text, date, blank) under its given field name.

Most people who ask for XML import into Calc mean the XML flavour produced
by Excel 2003. But they do not know that this particular flavour of XML is
specifically made for that particular application. Other applications to
read Excel-XML can be written easily but they need to be written. XML is not
a file format on its own right. XML lets you define your own file formats.



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Re: [libreoffice-users] Re: Import XML files?

2012-10-04 Thread Steve Edmonds


On 2012-10-05 02:22, Jay Lozier wrote:

On 10/04/2012 08:11 AM, Andreas Säger wrote:

Mark Stanton wrote

I hope not, XML is supposed to be a self defining file format surely?

It's a meta-file format. You (who defines all the XML tags) are the one and
only person able to develop import and export software for your particular
flavour of XML.

xml
BLAH foo=bar
blub x=121.43/blub
scramble crucifix=Trueertzuiopdfghjklöxcvbnm/scramble
/BLAH
/xml
How would you translate this into a spreadsheet? Is BLAH a row, a column?
What is scramble? How to deal with the attributes?

Nobody ever tells us anything about his/her user-defined file formats such
as CSV or XML. So most of the topics becaome lengthy and some remain
unsolved.


   A general importer ought to be easy, no?

  Google reveals plenty of examples about how to write XLST scritpts to
import/export user-defined XML formats into/from ODF. This is development
work just like writing macros or setting up a database.
In all those years since OOo 1.0 nobody wrote a generic XML-to-Calc tool. I
would search in the database world for existing XML tools for database
engines. Once you have the data in a connectable database, you have it it in
Calc and Writer as well.



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Andreas,

My understanding the problem with importing a generic XML file is that
the document definition does not a (defacto) standard that one can
write an import script for? If the XML file uses a known definition (ODF
for example) then it is easier to write an import script because there
is a standard defining the document internals.

The extension of this is, if the file format is well documented, even if
it is proprietary, then writing an import script is possible because
there exists a specification for the format. The only issue then is
whether one has the complete format specification.

Some of the XML files I import have nested lists, i.e not flat. I like 
to define how these are imported.
The file also has a lot of fields I don't want imported (not shown). So 
by using a filter I get what I want displayed how I want.


?xml version=1.0 encoding=UTF-8?
customers type=array
  customer
saltc9bf86ac97d3f742f85e9811d338a594af727dbc/salt
updated-at type=datetime2010-02-16T17:03:57-05:00/updated-at
valid-access-count type=integer0/valid-access-count
customer-visibility-groups type=array
  customer-visibility-group
id type=integer10/id
nameAll Customers/name
the-parent-record-id type=NilClass1/the-parent-record-id
  /customer-visibility-group
  customer-visibility-group
id type=integer11/id
nameOIML customers/name
the-parent-record-id type=NilClass1/the-parent-record-id
  /customer-visibility-group
  customer-visibility-group
id type=integer258/id
nameAE-United Arab Emirates/name
the-parent-record-id type=NilClass1/the-parent-record-id
  /customer-visibility-group
  customer-visibility-group
id type=integer21/id
nameMNA-Middle East amp; N Africa/name
the-parent-record-id type=NilClass1/the-parent-record-id
  /customer-visibility-group
/customer-visibility-groups
  /customer
/customers

Steve

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[libreoffice-users] Re: Import XML files?

2012-10-04 Thread Andreas Säger
MySQL can import your customer-visibility-groups:
http://dev.mysql.com/doc/refman/5.5/en/load-xml.html

If there is any reason why you want customer-visibility-groups in a
calculator software, connect a registerd Base document to your MySQL server
and dump the imported data from the data source pane into a sheet which
creates a refreshable link.

XSLT and ODF office suites:
http://www.ibm.com/developerworks/xml/library/x-oocalc/
http://www.ibm.com/developerworks/xml/tutorials/x-xsltopenoff/index.html [9
pages]

There are various topics on the OOo forums:
http://www.oooforum.org/forum/viewtopic.phtml?t=67906
http://forum.openoffice.org/en/forum/viewtopic.php?t=3490f=45



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Re: [libreoffice-users] Re: Import XML files?

2012-10-04 Thread Steve Edmonds


On 2012-10-05 10:27, Andreas Säger wrote:

MySQL can import your customer-visibility-groups:
http://dev.mysql.com/doc/refman/5.5/en/load-xml.html

If there is any reason why you want customer-visibility-groups in a
calculator software, connect a registerd Base document to your MySQL server
and dump the imported data from the data source pane into a sheet which
creates a refreshable link.

XSLT and ODF office suites:
http://www.ibm.com/developerworks/xml/library/x-oocalc/
http://www.ibm.com/developerworks/xml/tutorials/x-xsltopenoff/index.html [9
pages]

There are various topics on the OOo forums:
http://www.oooforum.org/forum/viewtopic.phtml?t=67906
http://forum.openoffice.org/en/forum/viewtopic.php?t=3490f=45

Hi Andreas. The file with that XML snippit is uploaded to a MySQL 
database behind Rails every 15 minutes.
From time to time I load it into calc to provide quick lists of 
extracted data to our sales guys who cope fare easier with a spread sheet.

Steve

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[libreoffice-users] Re: Import XML files?

2012-10-04 Thread Andreas Säger
Am 03.10.2012 20:54, Mark Stanton wrote:
 I've got an XML file (I've generated myself, programmatically).
 
 I thought it ought to be easy to import it in LO (3.4.6), somehow.  I 
 thougth Calc would be a good bet, but it just gives me General I/O 
 error.  Base does the same.
 
 The website 
 (help.libreoffice.org/Common/About_Import_and_Export_Filters) 
 suggests it ought to be doable but gives no details whatsoever.
 
 Anyone got any pointers I could use?
 
 Regars
 Mark Stanton
 
 
 

Well, if you implemented your own XML format then you should know the
appropriate software for your particular data structures.
If there is some reason why you want to open your file format in this
office suite then you have to write an XSLT script translating your
specific XML flavour into ODF for import and possibly vice versa for export.



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[libreoffice-users] Re: Import XML files?

2012-10-04 Thread Alexander Thurgood
Le 03/10/12 20:54, Mark Stanton a écrit :

Hi Mark,


 I've got an XML file (I've generated myself, programmatically).
 
 I thought it ought to be easy to import it in LO (3.4.6), somehow.  I 
 thougth Calc would be a good bet, but it just gives me General I/O 
 error.  Base does the same.
 

Without a filter to transform it into something readable/formattable by
one of the apps of the suite, at best you could possibly open it in
Writer as plain text.

The installed XML/XSLT filters that come with LO are :

Docbook from SXW (old binary StarOffice/OOo format) - import/export
MediaWiki - export
Mediawiki_web - export
MS Excel 2003 XML - import/export
MS Word 2003 XML - import/export
UOF Presentation - import/export
UOF Spreadsheet - import/export
UOF Text - import/export
XHTML Calc - export
XHTML Writer - export
XHTML Draw - export
XHTML Impress - export



Alex


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