History log of /PHP-8.3/ext/mbstring/tests/mb_str_split_jp.phpt (Results 1 – 6 of 6)
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# d8b5b9fa 08-Jan-2023 Alex Dowad

Add unit tests for mb_str_split/mb_substr on MacJapanese encoding

MacJapanese has a somewhat unusual feature that when mapped to
Unicode, many characters map to sequences of several code

Add unit tests for mb_str_split/mb_substr on MacJapanese encoding

MacJapanese has a somewhat unusual feature that when mapped to
Unicode, many characters map to sequences of several codepoints.
Add test cases demonstrating how mb_str_split and mb_substr behave in
this situation.

When adding these tests, I found the behavior of mb_substr was wrong
due to an inconsistency between the string "length" as measured by
mb_strlen and the number of native MacJapanese characters which
mb_substr would count when iterating over the string using the
mblen_table. This has been fixed.

I believe that mb_strstr will also return wrong results in some cases
for MacJapanese. I still need to come up with unit tests which
demonstrate the problem and figure out how to fix it.

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# d104481a 04-Jan-2023 Alex Dowad

Correct entry for 0x80,0xFD-FF in SJIS multi-byte character length table

As a performance optimization, mbstring implements some functions using
tables which give the (byte) length of a

Correct entry for 0x80,0xFD-FF in SJIS multi-byte character length table

As a performance optimization, mbstring implements some functions using
tables which give the (byte) length of a multi-byte character using a
lookup based on the value of the first byte. These tables are called
`mblen_table`.

For many years, the mblen_table for SJIS has had '2' in position 0x80.
That is wrong; it should have been '1'. Reasons:

For SJIS, SJIS-2004, and mobile variants of SJIS, 0x80 has never been
treated as the first byte of a 2-byte character. It has always been
treated as a single erroneous byte. On the other hand, 0x80 is a valid
character in MacJapanese... but a 1-byte character, not a 2-byte one.

The same applies to bytes 0xFD-FF; these are 1-byte characters in
MacJapanese, and in other SJIS variants, they are not valid (as the
first byte of a character).

Thanks to the GitHub user 'youkidearitai' for finding this problem.

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Revision tags: php-8.2.0RC1, php-8.1.10, php-8.0.23, php-8.0.23RC1, php-8.1.10RC1, php-8.2.0beta3, php-8.2.0beta2, php-8.1.9, php-8.0.22, php-8.1.9RC1, php-8.2.0beta1, php-8.0.22RC1, php-8.0.21, php-8.1.8, php-8.2.0alpha3, php-8.1.8RC1, php-8.2.0alpha2, php-8.0.21RC1, php-8.0.20, php-8.1.7, php-8.2.0alpha1, php-7.4.30, php-8.1.7RC1, php-8.0.20RC1, php-8.1.6, php-8.0.19, php-8.1.6RC1, php-8.0.19RC1, php-8.0.18, php-8.1.5, php-7.4.29, php-8.1.5RC1, php-8.0.18RC1, php-8.1.4, php-8.0.17, php-8.1.4RC1, php-8.0.17RC1, php-8.1.3, php-8.0.16, php-7.4.28, php-8.1.3RC1, php-8.0.16RC1, php-8.1.2, php-8.0.15, php-8.1.2RC1, php-8.0.15RC1, php-8.0.14, php-8.1.1, php-7.4.27, php-8.1.1RC1, php-8.0.14RC1, php-7.4.27RC1, php-8.1.0, php-8.0.13, php-7.4.26, php-7.3.33, php-8.1.0RC6, php-7.4.26RC1, php-8.0.13RC1, php-8.1.0RC5, php-7.3.32, php-7.4.25, php-8.0.12, php-8.1.0RC4, php-8.0.12RC1, php-7.4.25RC1, php-8.1.0RC3, php-8.0.11, php-7.4.24, php-7.3.31
# 1170981b 18-Sep-2021 Alex Dowad

Fix mb_str_split on empty strings in variable-length text encodings

Previously, when passed an empty string, and given an encoding which
uses a variable number of bytes per character (an

Fix mb_str_split on empty strings in variable-length text encodings

Previously, when passed an empty string, and given an encoding which
uses a variable number of bytes per character (and which doesn't have
a 'character length table'), mb_str_split would return an array
containing a single empty string, rather than an empty array.

The ISO-2022 encodings are among those which were affected by this bug.

show more ...


Revision tags: php-8.1.0RC2, php-7.4.24RC1, php-8.0.11RC1, php-8.1.0RC1, php-7.4.23, php-8.0.10, php-7.3.30, php-8.1.0beta3, php-8.0.10RC1, php-7.4.23RC1, php-8.1.0beta2, php-8.0.9, php-7.4.22, php-8.1.0beta1, php-7.4.22RC1, php-8.0.9RC1, php-8.1.0alpha3, php-7.4.21, php-7.3.29, php-8.0.8, php-8.1.0alpha2, php-7.4.21RC1, php-8.0.8RC1
# 39131219 11-Jun-2021 Nikita Popov

Migrate more SKIPIF -> EXTENSIONS (#7139)

This is a mix of more automated and manual migration. It should remove all applicable extension_loaded() checks outside of skipif.inc files.


Revision tags: php-8.1.0alpha1, php-8.0.7, php-7.4.20, php-8.0.7RC1, php-7.4.20RC1, php-8.0.6, php-7.4.19, php-7.4.18, php-7.3.28, php-8.0.5, php-8.0.5RC1, php-7.4.18RC1, php-8.0.4RC1, php-7.4.17RC1, php-8.0.3, php-7.4.16, php-8.0.3RC1, php-7.4.16RC1
# b1177127 13-Feb-2021 Max Semenik

Remove stray mentions of mbstring.func_overload

This feature has been completely removed.

Closes GH-6688.


Revision tags: php-8.0.2, php-7.4.15, php-7.3.27, php-8.0.2RC1, php-7.4.15RC2, php-7.4.15RC1, php-8.0.1, php-7.4.14, php-7.3.26, php-7.4.14RC1, php-8.0.1RC1, php-7.3.26RC1, php-8.0.0, php-7.3.25, php-7.4.13, php-8.0.0RC5, php-7.4.13RC1, php-8.0.0RC4, php-7.3.25RC1, php-7.4.12, php-8.0.0RC3, php-7.3.24, php-8.0.0RC2, php-7.4.12RC1, php-7.3.24RC1, php-7.2.34, php-8.0.0rc1, php-7.4.11, php-7.3.23, php-8.0.0beta4, php-7.4.11RC1, php-7.3.23RC1, php-8.0.0beta3, php-7.4.10, php-7.3.22, php-8.0.0beta2, php-7.3.22RC1, php-7.4.10RC1, php-8.0.0beta1, php-7.4.9, php-7.2.33, php-7.3.21, php-8.0.0alpha3, php-7.4.9RC1, php-7.3.21RC1, php-7.4.8, php-7.2.32, php-8.0.0alpha2, php-7.3.20, php-8.0.0alpha1, php-7.4.8RC1, php-7.3.20RC1, php-7.4.7, php-7.3.19, php-7.4.7RC1, php-7.3.19RC1, php-7.4.6, php-7.2.31, php-7.4.6RC1, php-7.3.18RC1, php-7.2.30, php-7.4.5, php-7.3.17, php-7.4.5RC1, php-7.3.17RC1, php-7.3.18, php-7.4.4, php-7.2.29, php-7.3.16, php-7.4.4RC1, php-7.3.16RC1, php-7.4.3, php-7.2.28, php-7.3.15RC1, php-7.4.3RC1, php-7.3.15, php-7.2.27, php-7.4.2, php-7.3.14, php-7.3.14RC1, php-7.4.2RC1, php-7.4.1, php-7.2.26, php-7.3.13, php-7.4.1RC1, php-7.3.13RC1, php-7.2.26RC1, php-7.4.0, php-7.2.25, php-7.3.12, php-7.4.0RC6, php-7.3.12RC1, php-7.2.25RC1, php-7.4.0RC5, php-7.1.33, php-7.2.24, php-7.3.11, php-7.4.0RC4, php-7.3.11RC1, php-7.2.24RC1, php-7.4.0RC3, php-7.2.23, php-7.3.10, php-7.4.0RC2, php-7.2.23RC1, php-7.3.10RC1, php-7.4.0RC1, php-7.1.32, php-7.2.22, php-7.3.9, php-7.4.0beta4, php-7.2.22RC1, php-7.3.9RC1, php-7.4.0beta2, php-7.1.31, php-7.2.21, php-7.3.8, php-7.4.0beta1, php-7.2.21RC1, php-7.3.8RC1, php-7.4.0alpha3, php-7.3.7, php-7.2.20, php-7.4.0alpha2, php-7.3.7RC3, php-7.3.7RC2, php-7.2.20RC2, php-7.4.0alpha1, php-7.3.7RC1, php-7.2.20RC1, php-7.2.19, php-7.3.6, php-7.1.30, php-7.2.19RC1, php-7.3.6RC1, php-7.1.29, php-7.2.18, php-7.3.5, php-7.2.18RC1, php-7.3.5RC1, php-7.2.17, php-7.3.4, php-7.1.28, php-7.3.4RC1, php-7.2.17RC1, php-7.1.27, php-7.3.3, php-7.2.16, php-7.3.3RC1, php-7.2.16RC1
# d77ad274 09-Feb-2019 legale

Implement mb_str_split()

RFC: https://wiki.php.net/rfc/mb_str_split