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106 Commits

Author SHA1 Message Date
Todd
a6ae585a35 spreadsheet: record inf/nan as errors 
As you can't directly enter NaN/Inf in Excel, there's
no great way to verify behavior.  This just ensures
that setting NaN/Inf from Go will result in a #NUM!
error in Excel.
 2017-09-21 21:14:25 -04:00
Todd
00be1d037c formula: support evaluating array formulas 
Array formulas are entered in Excel by pressing
Ctrl+Shift+Enter to finish the formula.  The resulting
formula is entirely in one cell, but its computed results
expand into cells the size of the array result.
 2017-09-21 20:20:06 -04:00
Todd
c4c9138da2 formula: add more index functions 
- HLOOKUP
- LOOKUP
- TRANSPOSE
- VLOOKUP
 2017-09-21 19:31:28 -04:00
Todd
f915bf1a9b formula: support for more statistical functions 
- AVERAGE
- AVERAGEA
- COUNT
- COUNTA
- COUNTBLANK
- MEDIAN
 2017-09-20 20:47:03 -04:00
Todd
0e09e64818 formula: compatibility & bug fixes 
- Make UNICODE with no arguments behave like Excel
- Fix OFFSET/INDEX for named ranges
 2017-09-20 20:47:03 -04:00
Todd
e7da598399 spreadsheet: return empty values from sheet context 
This is required as AVERAGE/AVERAGEA need to distinguish between
empty and non-empty cells.
 2017-09-20 20:47:03 -04:00
Todd
b056033c12 format: add support for string formats 2017-09-20 15:15:13 -04:00
Todd
5f6ed3a319 spreadsheet: add unit tests for default number formats 2017-09-20 15:15:13 -04:00
Todd
6a8920a1c7 spreadsheet: fix number format 47 
This appears to be a typo in the ECMA 376 document.  Excel treats
it as "mm:ss.0" and not "mmss.0"
 2017-09-20 15:15:13 -04:00
Todd
1992e3c519 format: support variable denominators in fraction formats 2017-09-20 15:15:13 -04:00
Todd
a8d038561c spreadsheet: add support for protecting/unprotecting workbooks/sheets 2017-09-20 15:15:13 -04:00
Todd
20e8ecd685 format: add package doc 2017-09-19 19:45:41 -04:00
Todd
1103aa1edb format: add support for fraction formatting 2017-09-19 16:35:11 -04:00
Todd
32bc9e3a50 format: fix vet errors with generated function 2017-09-18 22:30:08 -05:00
Todd
b30eaaae44 format: change debugging log.Fatal to log.Printf 2017-09-18 22:30:08 -05:00
Todd
b03eec358d spreadsheet: add xlsx2csv demo 
This demo program will extract either raw or formatted
values from a spreadsheet, creating one CSV file per
sheet.
 2017-09-18 22:30:08 -05:00
Todd
49e34b1d90 formula: better support for thousands separator 2017-09-18 22:30:08 -05:00
Todd
d69cf90249 format: implement support for evaluating spreadsheet number formatting 
This adds support for extracting a cell's formatted value according to
the number format applied to the cell.  To do this we need to implement
a parser for Excel style format strings and support formatting numbers
according to that style.

This also enhances the General formatting to be much closer to what
Excel normally does. There are likely still a few corner cases where
Excel and gooxml differ, but hopefully not too many.
 2017-09-18 22:30:08 -05:00
Todd
d9c4a27794 spreadsheet: start adding support for extracting formatted cell value 2017-09-18 22:30:08 -05:00
Todd
39028bcd7a spreadsheet: add ability to recalculate formulas 
If the formula executes without errors, it stores the
result as a cached value in the sheet.
 2017-09-17 14:56:58 -05:00
Todd
b54a2efd19 formula: add method to determine the supported functions 2017-09-17 14:56:58 -05:00
Todd
422484af83 formula: add more complex function support 
- INDEX
- INDIRECT
- OFFSET
 2017-09-17 14:56:58 -05:00
Todd
92c902e6bd formula: support for using named ranges/tables from formulas 2017-09-17 14:56:58 -05:00
Todd
a4a1562f7c spreadsheet: add formula reading/writing support 
Minimal support for now, just enough to read table
ranges so they can be used from formulas.
 2017-09-17 14:56:58 -05:00
Todd
5ed34695bd formula: add support for text functions 
- CHAR
- CLEAN
- CODE
- CONCATENATE
- EXACT
- LEFT
- LEN
- LOWER
- PROPER
- REPT
- RIGHT
- T
- TRIM
- UNICHAR
- UNICODE
- UPPER
 2017-09-17 09:23:37 -05:00
Todd
09419b822f formula: trig functions 
- ACOT
- ACOTH
- CEILING (legacy version)
- COT
- COTH
- CSC
- CSCH
- FLOOR (legacy version)
- SEC
- SECH
 2017-09-16 21:12:41 -05:00
Todd
29e03fc7b7 formula: more math/trig functions 
- SIGN
- SIN
- SINH
- SQRT
- SQRTPI
- SUM
- SUMPRODUCT
- SUMSQ
- TAN
- TANH
- TRUNC
 2017-09-16 18:13:20 -05:00
Todd
e46a7165b4 formula: more implementations of math/trig functins 
- MDETERM
- MOD
- MROUND
- MULTINOMIAL
- MUNIT
- ODD
- POWER
- PRODUCT
- QUOTIENT
- RADIANS
- RAND
- RANDBETWEEN
- ROMAN
- ROUND
- ROUNDDOWN
- ROUNDUP
- SERIESSUM
 2017-09-16 16:52:14 -05:00
Todd
23e428e770 formula: return array instead of list for ranges 
This will be required for functions that need to know
the structure of the input.
 2017-09-16 16:52:14 -05:00
Todd
5a5c16b89a formula: add initial support for cell arrays 
This is a pretty uncommon feature from what I can tell
and is not fully supported. The example for the MDETERM
function uses an array though, so this will at least add
enough support for the examples to compute correctly.
 2017-09-16 16:52:14 -05:00
Todd
fb43078e87 formula: add support for referencing other sheets 
This adds support references like 'Sheet 1'! so that formulas
can pull values from other sheets.
 2017-09-16 10:33:13 -05:00
Todd
e0786dae4a formula: support for more math/trig formulas 
- EVEN
- EXP
- FACT
- FACTDOUBLE
- FLOOR.MATH
- FLOOR.PRECISE
- GCD
- INT
- ISO.CEILING
- LCM
- LN
- LOG
- LOG10
 2017-09-16 09:46:44 -05:00
Todd
199db803a0 spreadsheet: fix bug with column to index 2017-09-15 17:43:40 -05:00
Todd
9b89ae1f12 spreadsheet: add fast paths for appending rows/cells 2017-09-15 17:43:40 -05:00
Todd
382c157c11 formula: add more math formulas 
- ABS
- ACOS
- ACOSH
- ARABIC
- ASIN
- ASINH
- ATAN
- ATANH
- ATAN2
- BASE
- CEILING.MATH
- CEILING.PRECISE
- COMBIN
- COMBINA
- COS
- COSH
- DECIMAL
- DEGREES
- PI
 2017-09-15 17:43:40 -05:00
Todd
17a365ee93 spreadsheet: start adding support for formula evaluation 
We can take advantage of cached formula results that Excel/LibreOffice
insert to ensure that our formula results match the expected results.
 2017-09-14 22:17:42 -05:00
Todd
111567b74e spreadsheet: default new cells to numeric with implicit zero value 2017-09-14 22:17:42 -05:00
Todd
1ff1b074f7 spreadsheet: add support for setting the active sheet 
This is the tab that is initially selected when opening
a spreadsheet.
 2017-09-12 16:32:16 -05:00
Todd
58b6c0700e spreadsheet: allow multiple anchor types for charts 2017-09-11 20:17:06 -05:00
Todd
558e5ee274 spreadsheet: add image support and example 2017-09-11 20:17:06 -05:00
Todd
90e6416440 spreadsheet: add more fine control over anchoring 2017-09-11 20:17:06 -05:00
Todd
0791b4688b spreadsheet: add freeze rows/columns support and example 2017-09-10 19:11:53 -05:00
Todd
9e6bfaf6e1 spreadsheet: add method to clear cached formula results 2017-09-10 17:28:36 -05:00
Todd
f3eca9e68e spreadsheet: add support for data validation rules 2017-09-10 17:13:40 -05:00
Todd
db7145dcbb spreadsheet: add helper function for applying a border to multiple cells 2017-09-10 16:13:11 -05:00
Todd
2312e6cdc8 spreadsheet: add initial cell border example 2017-09-10 16:13:11 -05:00
Todd
3bc4675cf6 spreadsheet: add comment support 
This adds comment support for sheets.  Excel requires a VML drawing with
the comment box shape for each comment to display the comment.
LibreOffice displays comments fine with or without the shape, and
creates the shape for its own comments.  For the sake of compatibility,
we create comment shapes as well.

I know of no other use for the legacy VML support other than comment
boxes...
 2017-09-10 11:25:29 -05:00
Todd
50c3c2c990 document/spreadsheet: updates for new schema 2017-09-10 10:33:53 -05:00
Todd
3d6b12368b spreadsheet: add complex example 
This has some conditional formatting, charts and auto filters.
 2017-09-09 11:02:39 -05:00
Todd
ceb8570558 spreadsheet: add support for column formatting 2017-09-09 11:02:39 -05:00