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Also, rewrite StringUtils::match(), because the old implementation was
fairly broken, e.g. "acdcxb" would *not* match "a*?b".
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No behaviour change; also patches use of `String::TrimMode` in LibJS.
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With this commit, <AK/Format.h> has a more supportive role and isn't
used directly.
Essentially, there now is a public 'vformat' function ('v' for vector)
which takes already type erased parameters. The name is choosen to
indicate that this function behaves similar to C-style functions taking
a va_list equivalent.
The interface for frontend users are now 'String::formatted' and
'StringBuilder::appendff'.
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Consider the following snippet:
void foo(InputStream& stream) {
if(!stream.eof()) {
u8 byte;
stream >> byte;
}
}
There is a very subtle bug in this snippet, for some input streams eof()
might return false even if no more data can be read. In this case an
error flag would be set on the stream.
Until now I've always ensured that this is not the case, but this made
the implementation of eof() unnecessarily complicated.
InputFileStream::eof had to keep a ByteBuffer around just to make this
possible. That meant a ton of unnecessary copies just to get a reliable
eof().
In most cases it isn't actually necessary to have a reliable eof()
implementation.
In most other cases a reliable eof() is avaliable anyways because in
some cases like InputMemoryStream it is very easy to implement.
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This is a strcpy()-like method with actually sane semantics:
* It accepts a non-empty buffer along with its size in bytes.
* It copies as much of the string as fits into the buffer.
* It always null-terminates the result.
* It returns, as a non-discardable boolean, whether the whole string has been
copied.
Intended usage looks like this:
bool fits = string.copy_characters_to_buffer(buffer, sizeof(buffer));
and then either
if (!fits) {
fprintf(stderr, "The name does not fit!!11");
return nullptr;
}
or, if you're sure the buffer is large enough,
// I'm totally sure it fits because [reasons go here].
ASSERT(fits);
or if you're feeling extremely adventurous,
(void)fits;
but don't do that, please.
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I think this should really be a member function of InputStream instead,
but I don't want to include String in Stream.h. This will do for now...
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Switch the comparisons from "other == *this" to "*this == other".
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Get rid of the weird old signature:
- int StringType::to_int(bool& ok) const
And replace it with sensible new signature:
- Optional<int> StringType::to_int() const
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Also, make the zero-argument variant private since it's not meant to be
called by clients directly.
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I don't wanna see String::length() in a profile, jeez. :^)
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FileSystemPath::has_extension was jumping through hoops and allocating
memory to do a case insensitive comparison needlessly. Extend the
existing String::ends_with method to allow the caller to specify the
case sensitivity required.
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This allows you to compare a string against an arbitrary number of
other strings with a single call.
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As suggested by @awesomekling in a code review and (initially) ignored
by me :^)
Implementation is roughly based on LibJS's trim_string(), but with a fix
for trimming all-whitespace strings.
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Also, added AK::String::index_of and fixed a bug in ELF::Loader::symbol_ptr
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This adds a replace functionality that replaces a string that contains
occurences of a "needle" by a "replacement" value. With "all_occurences"
enabled, all occurences are being replaced, otherwise only the first
occurence is being replaced.
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Some of these are very inefficient. It's nice to have some optimization
opportunities in the future though. :^)
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String.h no longer pulls in StringView.h. We do this by moving a bunch
of String functions out-of-line.
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Now it's possible to use range-based for loops with String and StringView.
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Move the "fast memcpy" stuff out of StdLibExtras.h and into Memory.h.
This will break a ton of things that were relying on StdLibExtras.h
to include a bunch of other headers. Fix will follow immediately after.
This makes it possible to include StdLibExtras.h from Types.h, which is
the main point of this exercise.
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We can use __builtin_memset() without including <string.h>.
This is pretty neat, as it will allow us to reduce the header deps
of AK templates a bit, if applied consistently.
Note that this is an enabling change for an upcoming #include removal.
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Provide wrappers in String and StringView. Add some tests for the
implementations.
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Provide wrappers in the String and StringView classes, and add some tests.
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This is simply meant to be a more efficient implementation in the
case that we only need to check a single character.
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You can now #include <AK/Forward.h> to get most of the AK types as
forward declarations.
Header dependency explosion is one of the main contributors to compile
times at the moment, so this is a step towards smaller include graphs.
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This sort of thing can be useful to things that don't want to link with
all of LibHTML.
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This was only used by HashTable::dump() which I used when doing the
first HashTable implementation. Removing this allows us to also remove
most includes of <AK/kstdio.h>.
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Now that we're trying to be more portable, we can't only rely on using
i32/u32 and i64/u64 since different systems have different combinations
of int/long/long long and unsigned/unsigned long/unsigned long long.
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Just like String[View]::split_view() has already.
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As suggested by Joshua, this commit adds the 2-clause BSD license as a
comment block to the top of every source file.
For the first pass, I've just added myself for simplicity. I encourage
everyone to add themselves as copyright holders of any file they've
added or modified in some significant way. If I've added myself in
error somewhere, feel free to replace it with the appropriate copyright
holder instead.
Going forward, all new source files should include a license header.
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Using int was a mistake. This patch changes String, StringImpl,
StringView and StringBuilder to use size_t instead of int for lengths.
Obviously a lot of code needs to change as a result of this.
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This is just a wrapper around strstr() for now. There are many better
ways to search for a string within a string, but I'm just adding a nice
API at the moment. :^)
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This kind of thing is a bit annoying. On Serenity, size_t is the same
size as u32, but not the same type. Because of "long" or whatever.
This patch makes String not complain about duplicate overloads.
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