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-rw-r--r--core/fpdfapi/parser/cpdf_syntax_parser.cpp5
-rw-r--r--core/fpdfapi/parser/cpdf_syntax_parser.h1
-rw-r--r--core/fpdfapi/parser/cpdf_syntax_parser_unittest.cpp9
3 files changed, 15 insertions, 0 deletions
diff --git a/core/fpdfapi/parser/cpdf_syntax_parser.cpp b/core/fpdfapi/parser/cpdf_syntax_parser.cpp
index f7c79bc950..4a7810fc43 100644
--- a/core/fpdfapi/parser/cpdf_syntax_parser.cpp
+++ b/core/fpdfapi/parser/cpdf_syntax_parser.cpp
@@ -352,6 +352,11 @@ CFX_ByteString CPDF_SyntaxParser::GetNextWord(bool* bIsNumber) {
: CFX_ByteString((const char*)m_WordBuffer, m_WordSize);
}
+CFX_ByteString CPDF_SyntaxParser::PeekNextWord(bool* bIsNumber) {
+ const CFX_AutoRestorer<FX_FILESIZE> save_pos(&m_Pos);
+ return GetNextWord(bIsNumber);
+}
+
CFX_ByteString CPDF_SyntaxParser::GetKeyword() {
return GetNextWord(nullptr);
}
diff --git a/core/fpdfapi/parser/cpdf_syntax_parser.h b/core/fpdfapi/parser/cpdf_syntax_parser.h
index 88bbc5c9fa..179058edf8 100644
--- a/core/fpdfapi/parser/cpdf_syntax_parser.h
+++ b/core/fpdfapi/parser/cpdf_syntax_parser.h
@@ -65,6 +65,7 @@ class CPDF_SyntaxParser {
bool ReadBlock(uint8_t* pBuf, uint32_t size);
bool GetCharAt(FX_FILESIZE pos, uint8_t& ch);
CFX_ByteString GetNextWord(bool* bIsNumber);
+ CFX_ByteString PeekNextWord(bool* bIsNumber);
CFX_RetainPtr<IFX_SeekableReadStream> GetFileAccess() const;
diff --git a/core/fpdfapi/parser/cpdf_syntax_parser_unittest.cpp b/core/fpdfapi/parser/cpdf_syntax_parser_unittest.cpp
index ac7a875af6..6b54c70db6 100644
--- a/core/fpdfapi/parser/cpdf_syntax_parser_unittest.cpp
+++ b/core/fpdfapi/parser/cpdf_syntax_parser_unittest.cpp
@@ -155,3 +155,12 @@ TEST(cpdf_syntax_parser, GetInvalidReference) {
parser.GetObject(nullptr, CPDF_Object::kInvalidObjNum, 0, false);
EXPECT_FALSE(ref);
}
+
+TEST(cpdf_syntax_parser, PeekNextWord) {
+ CPDF_SyntaxParser parser;
+ uint8_t data[] = " WORD ";
+ parser.InitParser(
+ pdfium::MakeRetain<CFX_MemoryStream>(data, sizeof(data), false), 0);
+ EXPECT_EQ("WORD", parser.PeekNextWord(nullptr));
+ EXPECT_EQ("WORD", parser.GetNextWord(nullptr));
+}