General purpose formula parser and interpreter that can calculate multiple named targets, or "cells".
The goal of this project is to create a library for calculating the results of formula expressions stored in multiple named targets, or "cells". The cells can be referenced from each other, and the library takes care of resolving their dependencies automatically upon calculation. The caller can run the calculation routine either in a single-threaded mode, or a multi-threaded mode. The library also supports re-calculations where the contents of one or more cells have been modified since the last calculation, and a partial calculation of only the affected cells need to be calculated.
- Developed at LibreOffice:Factory
- Sources inherited from project openSUSE:Factory
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Source Files
| Filename | Size | Changed |
|---|---|---|
| libixion-0.16.1.tar.xz | 0000482500 471 KB | |
| libixion.changes | 0000006883 6.72 KB | |
| libixion.spec | 0000002999 2.93 KB |
Revision 17 (latest revision is 24)
Dominique Leuenberger (dimstar_suse)
accepted
request 841722
from
Tomáš Chvátal (scarabeus_iv)
(revision 17)
- update to 0.16.1:
* fixed a build issue on 32-bit linux platforms, caused by slicing of integer
string ID values.
* worked around floating point rounding errors which prevented two
theoretically-equal numeric values from being evaluated as equal in test
code.
* added new function to allow printing of single formula tokens.
* added method for setting cached results on formula cells in
model_context.
* changed the model_context design to ensure that all sheets are of the same
size.
* added an accessor method to formula_model_access interface (and implicitly
in model_context) that directly returns a string value from cell.
* added cell_access class for querying of cell states without knowing its
type ahead of time.
* added document class which provides a layer on top of model_context, to
abstract away the handling of formula calculations.
* deprecated model_context::erase_cell() in favor of empty_cell().
* added support for 3D references - references that contain multiple sheets.
* added support for the exponent (^) and concatenation (&) operators.
* fixed incorrect handling of range references containing whole columns such
as A:A.
* added support for unordered range references - range references whose
start row or column is greater than their end position counterparts, such
as A3:A1.
* fixed a bug that prevented nested formula functions from working properly.
* implemented Calc A1 style reference resolver.
* formula results now directly store the string values when the results are
of string type. They previously stored string ID values after interning
the original strings.
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