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LibPDF: Disallow parsing indirect values as operands

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An operation like 0 0 0 RG would have been confused for [ 0, 0 0 R ] G
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Julian Offenhäuser 2022-08-20 09:00:51 +02:00 • committed by Sam Atkins
parent 04cb00dc9a
commit 65e83bed53
2 changed files with 17 additions and 5 deletions
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7
Userland/Libraries/LibPDF/Parser.h
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@ -38,7 +38,12 @@ public:
void move_by(size_t count) { m_reader.move_by(count); }
void move_to(size_t offset) { m_reader.move_to(offset); }
PDFErrorOr<Value> parse_value();
enum class CanBeIndirectValue {
No,
Yes
};
PDFErrorOr<Value> parse_value(CanBeIndirectValue = CanBeIndirectValue::Yes);
PDFErrorOr<Value> parse_possible_indirect_value_or_ref();
PDFErrorOr<NonnullRefPtr<IndirectValue>> parse_indirect_value(u32 index, u32 generation);
PDFErrorOr<NonnullRefPtr<IndirectValue>> parse_indirect_value();