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This is a regression test to validate the functionality that was
reported broken in #9071, where the kernel would spin attempting
to cancel a stale timer.
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These were previously generated as two instructions, Compare [Inverse]
and Compare [Property].
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Before now, only binary properties could be parsed. Non-binary props are
of the form "Type=Value", where "Type" may be General_Category, Script,
or Script_Extension (or their aliases). Of these, LibUnicode currently
supports General_Category, so LibRegex can parse only that type.
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This changes LibRegex to parse the property escape as a Variant of
Unicode Property & General Category values. A byte code instruction is
added to perform matching based on General Category values.
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Without the previous fixes, these will blow up the stack.
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The following commit broke Tests/AK/TestJSON.cpp as it removed the
file that the test loaded from disk to validate JSON parsing.
commit ad141a228696d4e0f80add20d3e40a1fa3e82972
Author: Andreas Kling <kling@serenityos.org>
Date: Sat Jul 31 15:26:14 2021 +0200
Base: Remove "test.frm" from HackStudio test project
Instead of restoring the file, lets just embed a bit of JSON in the
test case to avoid using external resources, as they obviously are
surprising and make the test less portable across environments.
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This supports some binary property matching. It does not support any
properties not yet parsed by LibUnicode, nor does it support value
matching (such as Script_Extensions=Latin).
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Not a regression per se from 0fcb9efd86da4c15a1aee87503348c5bee875c51
since we were crashing before that which is obviously worse.
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Previously unmapping any offset starting at 0x0 would assert in the
kernel, add a regression test to validate the fix.
Co-authored-by: Federico Guerinoni <guerinoni.federico@gmail.com>
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Apparently, some code points fit both categories, for example U+0345
(COMBINING GREEK YPOGEGRAMMENI). Handle this fact when determining if
a code point is a final code point in a string.
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This implements unconditional special case folding, and conditional
folding for non-locale cases. Worth noting that the only conditional,
non-locale special case is for converting an uppercase sigma to
lowercase.
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The Unicode standard publishes the Unicode Character Database (UCD) with
information about every code point, such as each code point's upper case
mapping. LibUnicode exists to download and parse UCD files at build time
and to provide accessors to that data.
As a start, LibUnicode includes upper- and lower-case code point
converters.
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Previously there was no way to create a MACAddress by passing a direct
address as a string. This will allow programs like the arp utility to
create a MACAddress instance by user-passed addresses.
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When the Unicode flag is set, regular expressions may escape code points
by surrounding the hexadecimal code point with curly braces, e.g. \u{41}
is the character "A".
When the Unicode flag is not set, this should be considered a repetition
symbol - \u{41} is the character "u" repeated 41 times. This is left as
a TODO for now.
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When the Unicode option is not set, regular expressions should match
based on code units; when it is set, they should match based on code
points. To do so, the regex parser must combine surrogate pairs when
the Unicode option is set. Further, RegexStringView needs to know if
the flag is set in order to return code point vs. code unit based
string lengths and substrings.
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This is a generally nicer-to-use version of the existing {any,all}_of()
that doesn't require the user to explicitly provide two iterators.
As a bonus, it also allows arbitrary iterators (as opposed to the hard
requirement of providing SimpleIterators in the iterator version).
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Also adds a simple-ish test for CommonType.
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Also includes a way to transcode from and to UTF-8 strings.
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Also mark them as [[nodiscard]].
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The state of the formatter for the previous element should be thrown
away for each iteration. This showed up when trying to format a
Vector<String>, since Formatter<StringView> was unhappy about some state
that gets set when it's called. Add a test for Formatter<Vector>.
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During a recent commit the 64-bit kernel was moved to a different
address, breaking this test (unnoticed). This fixes it, so we can
turn on breaking x86_64 tests on the CI again.
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This commit makes LibRegex (mostly) capable of operating on any of
the three main string views:
- StringView for raw strings
- Utf8View for utf-8 encoded strings
- Utf32View for raw unicode strings
As a result, regexps with unicode strings should be able to properly
handle utf-8 and not stop in the middle of a code point.
A future commit will update LibJS to use the correct type of string
depending on the flags.
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Disable test for component with same check that component itself has.
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Utf8View::trim uses Utf8View::substring_view to return its result, which
requires the input to be a byte offset/length rather than code point
length.
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While trying to port to Clang we found that the functions as
implemented didn't actually work, and replacing them with a blatantly
broken function also did not break the tests on the GCC build. It
turns out we've been testing GCC's builtins by many tests. This
removes the use of builtins for LibM's tests (so we test the whole
function). It turns off the denormal test for scalbn (which was not
implemented) and comments out the tgamma(0.5) test which is too
inaccurate to be usable (and too complicated for me to fix). The gamma
function was made accurate for all other test cases, and asin received
two more layers of Taylor expansion to bring it within error margin
for the tests.
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Previously, HTMLToken would expose the Vector<Attribute> directly to
its users. In preparation for a future change, all users now use
implementation-agnostic APIs which do not expose the Vector directly.
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...and enable it for LibWeb and test-wasm.
Note that `wasm` will not be limited by this.
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This reverts commit 35394dbfaa23b44a293da85b20a63a10f73572c3.
I pushed the wrong button again, hopefully this will be the last of
such incidents.
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* wasm: Don't try to print the function results if it traps
* LibWasm: Inline some very hot functions
These are mostly pretty small functions too, and they were about ~10%
of runtime.
* LibWasm+Everywhere: Make the instruction count limit configurable
...and enable it for LibWeb and test-wasm.
Note that `wasm` will not be limited by this.
* LibWasm: Remove a useless use of ScopeGuard
There are no multiple exit paths in that function, so we can just put
the ending logic right at the end of the function instead.
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This test will pass when any flag in the mask is present in the value.
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This test requires that all values in the mask are present in the value
as well.
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Prior to this, it'd try to stuff them into an i64, which could fail and
give us nothing.
Even though this is an extension we've made to JSON, the parser should
be able to correctly round-trip from whatever our serialiser has
generated.
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This fixes parsing the following regular expression: /</g;
It also adds a simple script element to the HTMLTokenizer regression
test, which also contains that specific regex.
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The test suite includes a few basic tests and a very crude regression
test, which just concatenates the to_string() of all tokens and checks
the String's hash to be equal. This relies on the format of
HTMLToken::to_string() to stay the same, which is not ideal.
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Since Clang enables a couple of warnings that we don't have in GCC,
these were not caught before. Included fixes:
- Use correct printf format string for `size_t`
- Don't compare Nonnull(Ref|Own)Ptr` to nullptr
- Fix unsigned int& => unsigned long& conversion
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The "ue-" prefix makes it clearer that it should be run with the
UserspaceEmulator
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