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LibTextCodec: Add x-user-defined decoder

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It's a pretty simple charset: the bottom 128 bytes (0x00-0x7F) are
standard ASCII, while the top 128 bytes (0x80-0xFF) are mapped to a
portion of the Unicode Private Use Area, specifically 0xF780-0xF7FF.

This is used by Google Maps for certain blobs.
This commit is contained in:
Luke Wilde 2022-02-11 20:38:44 +00:00 • committed by Andreas Kling
parent 835a344337
commit 0e0f98a45e
2 changed files with 30 additions and 0 deletions
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5
Userland/Libraries/LibTextCodec/Decoder.h
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@ -67,6 +67,11 @@ public:
virtual void process(StringView, Function<void(u32)> on_code_point) override;
};
class XUserDefinedDecoder final : public Decoder {
public:
virtual void process(StringView, Function<void(u32)> on_code_point) override;
};
Decoder* decoder_for(String const& encoding);
Optional<String> get_standardized_encoding(const String& encoding);