e768cb0f19
* CSV - Guess Encoding, Handle Null-string Escape This is in response to issue #1647 (detect CSV character encoding). First, my tests with mb_detect_encoding indicate that it doesn't work well enough; regardless, users can always do that on their own if they deem it useful. Rolling my own is also troublesome, but I can at least: a. Check for BOM (UTF-8, UTF-16BE, UTF-16LE, UTF-32BE, UTF-32LE). b. Do some heuristic tests for each of the above encodings. c. Fallback to a user-specified encoding (default CP1252) if a and b don't yield result. I think this is probably useful enough to include, and relatively easy to expand if other potential encodings should be considered. Starting with PHP7.4, fgetcsv allows specification of null string as escape character in fgetcsv. This is a much better choice than the PHP (and PhpSpreadsheet) default of backslash in that it handles the file in the same manner as Excel does. There is one statement in Reader/CSV which would be adversely affected if the caller so specified (building a regular expression under the assumption that escape character is a single character). Fix that statement appropriately and add tests. |
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| .. | ||
| Calculation | ||
| Cell | ||
| Chart | ||
| Collection | ||
| Custom | ||
| Functional | ||
| Helper | ||
| Reader | ||
| Shared | ||
| Style | ||
| Worksheet | ||
| Writer | ||
| DefinedNameFormulaTest.php | ||
| DefinedNameTest.php | ||
| DocumentGeneratorTest.php | ||
| IOFactoryTest.php | ||
| NamedFormulaTest.php | ||
| NamedRangeTest.php | ||
| ReferenceHelperTest.php | ||
| SettingsTest.php | ||
| SpreadsheetTest.php | ||