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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.
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github-actions[bot]
2025-07-03 13:53:10 +00:00
Author: https://github.com/trflynn89
Commit: 62d9a84b8d
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5228
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/shannonbooth
30 changed files with 413 additions and 3034 deletions
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@ -5,6 +5,7 @@
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*/
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#include <AK/StringBuilder.h>
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#include <AK/StringConversions.h>
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#include <AK/StringUtils.h>
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/TypedArray.h>
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@ -502,7 +503,7 @@ DecodeResult from_hex(VM& vm, StringView string, Optional<size_t> max_length)
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// d. Let byte be the integer value represented by hexits in base-16 notation, using the letters A-F and a-f
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// for digits with values 10 through 15.
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// NOTE: We do this early so that we don't have to effectively parse hexits twice.
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auto byte = AK::StringUtils::convert_to_uint_from_hex<u8>(hexits, AK::TrimWhitespace::No);
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auto byte = AK::parse_hexadecimal_number<u8>(hexits, TrimWhitespace::No);
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// b. If hexits contains any code units which are not in "0123456789abcdefABCDEF", then
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if (!byte.has_value()) {
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