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LibWeb: Use StateTransaction for UnicodeRange parsing
...and change how the two parsing steps fit together. The two steps were previously quite muddled. Both worked with the TokenStream directly, and both were responsible for rewinding that stream if there was an error. This is both confusing and also made it impossible to replace the rewinding with StateTransactions. This commit more clearly divides the work between the two functions: One parses ComponentValues and produces a string, and the other parses that string to produce the UnicodeRange. It also replaces manual rewinding in the former with StateTransactions.
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2 changed files with 66 additions and 66 deletions
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@ -310,7 +310,7 @@ private:
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Optional<Length> parse_length(ComponentValue const&);
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Optional<Ratio> parse_ratio(TokenStream<ComponentValue>&);
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Optional<UnicodeRange> parse_unicode_range(TokenStream<ComponentValue>&);
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Optional<UnicodeRange> create_unicode_range_from_tokens(TokenStream<ComponentValue>&, int start_position, int end_position);
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Optional<UnicodeRange> parse_unicode_range(StringView);
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enum class AllowedDataUrlType {
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None,
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