Commit Graph

2 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