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AK+Everywhere: Replace custom number parsers with fast_float

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Our floating point number parser was based on the fast_float library:
https://github.com/fastfloat/fast_float

However, our implementation only supports 8-bit characters. To support
UTF-16, we will need to be able to convert char16_t-based strings to
numbers as well. This works out-of-the-box with fast_float.

We can also use fast_float for integer parsing.
This commit is contained in:
Timothy Flynn 2025-06-26 19:06:46 -04:00 • committed by Tim Flynn
parent 9fc3e72db2
commit 62d9a84b8d
Notes: github-actions[bot] 2025-07-03 13:53:10 +00:00
30 changed files with 413 additions and 3034 deletions
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6
Libraries/LibRegex/RegexParser.cpp
View file

@ -14,7 +14,7 @@
#include <AK/GenericLexer.h>
#include <AK/ScopeGuard.h>
#include <AK/StringBuilder.h>
#include <AK/StringUtils.h>
#include <AK/StringConversions.h>
#include <AK/TemporaryChange.h>
#include <LibUnicode/CharacterTypes.h>
@ -1220,7 +1220,7 @@ StringView ECMA262Parser::read_digits_as_string(ReadDigitsInitialZeroState initi
if (max_count > 0 && count >= max_count)
break;
if (hex && !AK::StringUtils::convert_to_uint_from_hex(c).has_value())
if (hex && !AK::parse_hexadecimal_number<u32>(c).has_value())
break;
if (!hex && !c.to_number<unsigned>().has_value())
break;
@ -1241,7 +1241,7 @@ Optional<unsigned> ECMA262Parser::read_digits(ECMA262Parser::ReadDigitsInitialZe
if (str.is_empty())
return {};
if (hex)
return AK::StringUtils::convert_to_uint_from_hex(str);
return AK::parse_hexadecimal_number<u32>(str);
return str.to_number<unsigned>();
}