Commit Graph

6 Commits

Author SHA1 Message Date
Dominik Businger 98a1f0a8cf
Fix for worksheet lookup for worksheets with spaces in the title
Sheet titles containing " " or "!" will be quoted in formulas. This commit
fixes the lookup of sheets with this kind of title by trimming the quotes
during the lookup.

Without this any defined range referencing a sheet with " " or "!" in the title
name will be lost when reading the workbook from file.

Fixes #928
Closes 930
2019-07-24 22:15:35 -07:00
Mark Baker 9b44cf3418
Add further new Functions introduced in MS Excel 2013 and 2016 (#608)
- Fix ISFORMULA() function to work with a cell reference to another worksheet
 - Added calculation engine support for the new functions that were added in MS Excel 2013 and MS Excel 2016
   - Text Functions
     - CONCAT()     Synonym for CONCATENATE()
     - NUMBERVALUE()  Converts text to a number, in a locale-independent way
     - UNICHAR()    Synonym for CHAR() in PHPSpreadsheet, which has always used UTF-8 internally
     - UNIORD()     Synonym for ORD() in PHPSpreadsheet, which has always used UTF-8 internally
     - TEXTJOIN()   Joins together two or more text strings, separated by a delimiter
   - Logical Functions
     - XOR()        Returns a logical Exclusive Or of all arguments
   - Date/Time Functions
     - ISOWEEKNUM()  Returns the ISO 8601 week number of the year for a given date
   - Lookup and Reference Functions
     - FORMULATEXT()  Returns a formula as a string
   - Engineering Functions
     - ERF.PRECISE()   Returns the error function integrated between 0 and a supplied limit
     - ERFC.PRECISE()  Synonym for ERFC
   - Math and Trig Functions
     - SEC()          Returns the secant of an angle
     - SECH()         Returns the hyperbolic secant of an angle
     - CSC()          Returns the cosecant of an angle
     - CSCH()         Returns the hyperbolic cosecant of an angle
     - COT()          Returns the cotangent of an angle
     - COTH()         Returns the hyperbolic cotangent of an angle
     - ACOT()         Returns the cotangent of an angle
     - ACOTH()        Returns the hyperbolic cotangent of an angle
  - Financial Functions
    - PDURATION()    Calculates the number of periods required for an investment to reach a specified value
    - RRI()          Calculates the interest rate required for an investment to grow to a specified future value
2018-07-22 19:17:04 +01:00
Bill Blume e3fb160f5f
Fixed parsing of conditionals in COUNTIF functions
Conditional operators in the selection parameter of COUNTIF
functions were not being parsed properly, causing evaluations
of formulae with such functions to sometimes fail.

Fixes #526
Closes #528
2018-06-10 14:25:33 +09:00
Josh Grant 148bee1991
Support `_xlfn.` prefix and add `ISFORMULA`, `MODE.SNGL`, `STDEV.S`, `STDEV.P`
This change adds support for newer functions that are prefixed
by _xlfn. (#356). The calculation engine has been updated to
recognise these as functions, and drop the _xlfn. part.

It also add a couple of the new functions such as STDEV.S/P,
MODE.SNGL, ISFORMULA.

Fixes #356
Closes #390
2018-02-26 09:35:53 +01:00
Adrien Crivelli 8dddf56c2e
Use proper syntax for variadic functions
This simplify code, increase readability and improve the function
signature for API users.
2017-01-23 15:01:20 +09:00
Adrien Crivelli e1f81f0fe0
Refactor tests data from custom format to PHP
FIX #14
2016-08-16 21:00:19 +09:00