Having a parallel project to complete cover Document Properties, I turned my attention to to Document Security. As happens, this particular change grew a bit over time.
Coverage and Testing Changes:
- Since the Security object has no members which are themselves objects, there is no need for a deep clone. The untested __clone method is removed.
- Almost all of the coverage for the Security Object came about through samples 11 and 41, not through formal tests with assertions. Formal tests have been added.
- All methods now use type-hinting via the function signature rather than doc block.
- Coverage is now 100%.
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Bug:
- Xlsx Reader was not evaluating the Lock values correctly. This revelation came as a result of the new tests ...
- Which showed that Xlsx Reader was testing SimpleXmlElement as a boolean rather than the stringified version of that ...
- Which didn't matter all that much because Xlsx Writer was writing the values as 'true' or 'false' rather than '1' or '0', and (bool) 'false' is true.
- Xlsx Reader clearly needed a change. I was trying to avoid that while awaiting the namespacing change. At least this is restricted to a very small self-contained piece of the code.
- It is less clear whether Xlsx Writer should be changed. It is true that Excel itself uses 1/0 when writing; however it is equally true that it recognizes true/false as well as 1/0 when reading. For now, I have left Xlsx Writer alone to limit the change to what is absolutely needed.
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Other Changes:
- I was at a complete loss as to what "lock revisions" was supposed to do, and it took a while to find anything on the web that explained it. Thank you, openpyxl, for coming through. I have documented it for PhpSpreadsheet now.
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Miscellaneous Note:
- There remains no support for Document Security in Xls Reader or Writer (nor in any of the other readers/writers except Xlsx).
- No Phpstan baseline changes, possibly for the first time in any of my PRs since Phpstan was introduced.
Co-authored-by: Mark Baker <mark@lange.demon.co.uk>
PR #2110 added some documentation for an unexpected observation when formula pre-calculation was set to false. I had suggested adding a unit test to demonstrate the observation, but I couldn't find any existing tests for PreCalc. This PR rectifies that omission.
See issue #2116. Code for handling end of month (method couponFirstPeriodDate) needed a fix. Fixed it, confirmed it covered the reported issue with no regression problems. Then added some extra similar tests to all the callers of couponFirstPeriodDate, and ...
One new test, in COUPDAYSNC, does not agree with Excel. It also does not agree with LibreOffice. It does, however, agree with Gnumeric, and with my (hardly guaranteed) hand calculation of what the result should be. So, I'm going with it (and have added an appropriate comment to the test data). I'm glad to discuss the matter with anyone more familiar than I with how this is supposed to work - those 360-day years are killers.
This change restored behavior from PHP7 in PHP8. In PHP7 calling
setSize(0) resulted in font size being set to 10. The fix addresses
change to equal comparisons in PHP8. Extra comparison is added to keep
result from PHP7 in PHP8 for the setSize(0) case.
Added a note about formulas still being calculated where column autosizing is turned on, even if pre-calculation is set to false. This is true at least for the Xlsx writer but probably others to if they use calculateColumnWidths from Worksheet/Worksheet.php
While researching an issue, I noticed that coverage of Document/Properties was poor. Further, the use of int timestamps will eventually lead to problems for 32-bit PHP (see issue #1826).
Coverage Changes:
- Many property types with no special handling are enumerated but not tested. These are removed, but will continue to function as before.
- Existing code theoretically allows property to be set to an object, but there is no means to read or write such a property, and, even if there were, I don't believe Excel supports it. Setting a property to an object will now be changed to a no-op (can throw an exception if preferred).
- Since the Properties object now has no members which are themselves objects, there is no need for a deep clone. The untested __clone method is removed.
- Large switch statements are replaced with associative arrays. Scrutinizer will like that.
- Coverage is now 100%.
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Timestamp Changes:
- Timestamps will be stored as int if possible, or float if not. This is, or will soon be, needed for 32-bit systems. Tests have been added for beyond-epoch dates, and run successfully with 32-bit.
- LibreOffice doesn't quite get the Created/Modified properties correct. These are written to the file as a string which includes offset from UTC, but LibreOffice ignores the offset portion when displaying them. Code had been generating these in UTC, but now generates them in default timezone, which should meet user's expectations.
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Other Changes:
- Custom properties added to ODS Writer.
- Samples had not been generating any ODS files. One is now generated.
- Ods uses a single 'keywords' property rather than multiple 'keyword' properties.
- Breaking change - default company is changed to null string from Microsoft Corporation.
- Breaking change of sorts - PropertiesTest incorrectly tested a custom date property against a string, Reader/XlsxTest correctly tested against a timestamp converted to a string. PropertiesTest was defective, and will no longer work as coded; anyone using it as a model will likewise have a problem.
- PHP8.1 has been complaining for weeks about a time zone conversion test. I have now downloaded a version, and changed the code so that it will work in 8.1 as well as prior releases. (It is still likely that the existing code should work in 8.1, but I haven't yet figured out how to file a bug report.) In the course of testing, 3 additional 8.1 problems were reported (all along the lines of "can't pass null to strpos"), and are fixed with null coercion.
- Two Calculation tests failed because of large results on 32-bit system. These are corrected by allowing the functions involved to return float|int rather than int. I suspect that there are other functions with this problem, and will investigate as a follow-up activity.
- See issue #2090. I believe that changes between 17.1 and master will merely cause the problematic spreadsheet to fail in a different way. I believe that enclosing in quotes some variables passed to Document/Properties by Reader/Xlsx will eliminate the problem, but, in the absence of an example file, cannot say for sure.
- Properties tests are now separated out from Reader/XlsxTest and Reader/OdsTest, and now test both Read and Write (via reload).
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Miscellaneous Notes:
- There remains no support for Custom Properties in Xls Reader or Writer.
- We now have default timezones for all of PHP itself, Shared/Date, and Shared/Timezone. That is least one too many. I was unable to disentangle the latter two for this change, but will look into deprecating one or the other in future.
This PR came about as I pondered how feasible it was to change the default escape character from backslash to null string, since the latter emulates Excel's own actions. Also, surveying issues relating to CSV, it seems that people are often in a situation where the current defaults aren't optimal for them (e.g. they are in a region where semicolon rather than comma is a better default delimiter). My case and that case can both be handled by methods after a reader is constructed. However, the issues also show that many use `IOFactory::load` rather than `new Csv()`, and the methods to affect the defaults are not available in that case.
Adding a static callback that can be invoked by the constructor addresses all these problems. This can be set as part of the user application's normal initialization, and no special attention needs to be paid to CSV loads thereafter, no matter how they are invoked.
This also makes it feasible to use 'guess' as inputEncoding, by providing a new setFallbackEncoding (default CP1252) method to use if none of the heuristic tests pass. There was already the ability to guess the encoding before `$reader->load()`, but not before `IOFactory::load`.
Almost all typehints in Reader/Csv and Reader/Csv/Delimiter are now part of the function signature rather than in the DocBlock. The exceptions are one method in Delimiter which uses a `resource` parameter, and the `canRead` and `load` methods, which must match the signature in IOFactory. I will look into changing those later.
The Csv Reader tests are moved into their own directory. All Phpstan baseline entries involving Csv Reader are eliminated.
oleibman
MarkBaker
Matjaž Drolc
Samuel Laulhau
Athena Metis
Nathan Dench
Adrien Crivelli