Commit Graph

13 Commits

Author SHA1 Message Date
7f7d07f151 + Add support for text/number/date formats in BIFF8/xls.
+ Add support for writing out date/time to non-BIFF8 xls (though as text only for now)
  Slightly modified patch by wp, thanks a lot. 
  See
  http://forum.lazarus.freepascal.org/index.php/topic,22940.msg136761.html#msg136761

Still to do: add test cases for invalid format strings



git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2863 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2013-12-22 14:02:04 +00:00
abd8d0bea8 + Add date/time/datetime read/write support for BIFF8 xls format. No plans for earlier formats though the code could be adapted
+ XLS BIFF8: added DATE and TIME worksheet functions to RPN formula
* Allow writing formulas,numbers etc using cardinals increasing row/column limits for formats that support it.
* Add checks for text cell size limits when writing xls, xml. If exceeded, cell text will be truncated (better than corrupting the xls file - e.g. try to open it with Excel 2002 - as happens now with xls format)
* Formats that use fpspreadsheet zip have extra checks to prevent crashes for invalid zip dates
+ Use FPC built-in zip format when using FPC 2.7.1+ as it has fixes/improvements (e.g. zip64 support)
+ Added FPCUnit test suite to test reading and reading writing files. For now uses BIFF8 xls; contributions for other formats and more tests welcome. See the tests subdirectory.
+ Add link to msodumper tool for reference/debugging/troubleshooting .xls output

Fixes Mantis bugtracker issue #25388



git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2857 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2013-12-07 13:42:22 +00:00
e70e659419 fpspreadsheet: Greatly improves the biff8 formula writing, now supports ABS and fixed =Cell+Cell
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2674 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2013-02-12 12:13:49 +00:00
60f89d3bfa fpspreadsheet: Minor improvement of encoding support
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2411 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2012-04-29 15:21:12 +00:00
09153c582d fpspreadsheet: Finishes the basic support for date reading
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2263 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2012-01-23 13:48:39 +00:00
a8d77986c0 fpspreadsheet: Small rework of the codepage code into xlscommon
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2199 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2011-12-25 09:03:20 +00:00
442c19fe0a Removes fpsconvencoding in favor of lconvencoding
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2195 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2011-12-24 23:42:08 +00:00
f8caf9447a Starts improving the xls biff 8 codepage support, doesnt actually work yet
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2194 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2011-12-24 23:38:24 +00:00
c9280da776 FPSpreadsheet: Implements enough to write SUM(A1:A5) formulas in BIFF8
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@1660 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2011-05-30 10:03:04 +00:00
f62592925f FPSpreadsheet: Adds some code for formula handling
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@1659 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2011-05-30 09:22:08 +00:00
b4d8b8a10e fpspreadsheet: Fixes a bug in the last fix
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@1655 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2011-05-29 17:33:46 +00:00
948839a79a Reworks the common xls files and attempt to fix bug 18886 excel5 files are truncated when imported
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@1654 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2011-05-29 17:21:51 +00:00
f3259be492 fpspreadsheet: improves Excel 5 RPN formulas, add ABS and ROUND functions
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@833 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2009-06-09 21:34:58 +00:00