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-rw-r--r--core/fpdfapi/parser/cpdf_simple_parser.cpp163
-rw-r--r--core/fpdfapi/parser/cpdf_simple_parser.h12
-rw-r--r--core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp6
-rw-r--r--core/fpdfapi/parser/cpdf_stream_acc.h2
4 files changed, 79 insertions, 104 deletions
diff --git a/core/fpdfapi/parser/cpdf_simple_parser.cpp b/core/fpdfapi/parser/cpdf_simple_parser.cpp
index 9e3bf54022..47ce1ad55e 100644
--- a/core/fpdfapi/parser/cpdf_simple_parser.cpp
+++ b/core/fpdfapi/parser/cpdf_simple_parser.cpp
@@ -10,147 +10,124 @@
#include "core/fpdfapi/parser/fpdf_parser_utility.h"
-CPDF_SimpleParser::CPDF_SimpleParser(const uint8_t* pData, uint32_t dwSize)
- : m_pData(pData), m_dwSize(dwSize), m_dwCurPos(0) {}
+CPDF_SimpleParser::CPDF_SimpleParser(const ByteStringView& str) : data_(str) {}
-CPDF_SimpleParser::CPDF_SimpleParser(const ByteStringView& str)
- : m_pData(str.raw_str()), m_dwSize(str.GetLength()), m_dwCurPos(0) {}
+CPDF_SimpleParser::~CPDF_SimpleParser() = default;
-std::pair<const uint8_t*, uint32_t> CPDF_SimpleParser::ParseWord() {
- const uint8_t* pStart = nullptr;
- uint8_t dwSize = 0;
+ByteStringView CPDF_SimpleParser::GetWord() {
uint8_t ch;
// Skip whitespace and comment lines.
while (1) {
- if (m_dwSize <= m_dwCurPos)
- return std::make_pair(pStart, dwSize);
+ if (data_.GetLength() <= cur_pos_)
+ return ByteStringView();
- ch = m_pData[m_dwCurPos++];
+ ch = data_[cur_pos_++];
while (PDFCharIsWhitespace(ch)) {
- if (m_dwSize <= m_dwCurPos)
- return std::make_pair(pStart, dwSize);
- ch = m_pData[m_dwCurPos++];
+ if (data_.GetLength() <= cur_pos_)
+ return ByteStringView();
+ ch = data_[cur_pos_++];
}
if (ch != '%')
break;
while (1) {
- if (m_dwSize <= m_dwCurPos)
- return std::make_pair(pStart, dwSize);
+ if (data_.GetLength() <= cur_pos_)
+ return ByteStringView();
- ch = m_pData[m_dwCurPos++];
+ ch = data_[cur_pos_++];
if (PDFCharIsLineEnding(ch))
break;
}
}
- uint32_t start_pos = m_dwCurPos - 1;
- pStart = m_pData + start_pos;
+ uint8_t dwSize = 0;
+ uint32_t start_pos = cur_pos_ - 1;
if (PDFCharIsDelimiter(ch)) {
// Find names
if (ch == '/') {
while (1) {
- if (m_dwSize <= m_dwCurPos)
+ if (data_.GetLength() <= cur_pos_)
break;
- ch = m_pData[m_dwCurPos++];
+ ch = data_[cur_pos_++];
if (!PDFCharIsOther(ch) && !PDFCharIsNumeric(ch)) {
- m_dwCurPos--;
- dwSize = m_dwCurPos - start_pos;
+ cur_pos_--;
+ dwSize = cur_pos_ - start_pos;
break;
}
}
- return std::make_pair(pStart, dwSize);
+ return data_.Mid(start_pos, dwSize);
}
dwSize = 1;
if (ch == '<') {
- if (m_dwSize <= m_dwCurPos)
- return std::make_pair(pStart, dwSize);
+ if (data_.GetLength() <= cur_pos_)
+ return data_.Mid(start_pos, dwSize);
- ch = m_pData[m_dwCurPos++];
- if (ch == '<')
+ ch = data_[cur_pos_++];
+ if (ch == '<') {
dwSize = 2;
- else
- m_dwCurPos--;
+ } else {
+ while (cur_pos_ < data_.GetLength() && data_[cur_pos_] != '>')
+ cur_pos_++;
+
+ if (cur_pos_ < data_.GetLength())
+ cur_pos_++;
+
+ dwSize = cur_pos_ - start_pos;
+ }
} else if (ch == '>') {
- if (m_dwSize <= m_dwCurPos)
- return std::make_pair(pStart, dwSize);
+ if (data_.GetLength() <= cur_pos_)
+ return data_.Mid(start_pos, dwSize);
- ch = m_pData[m_dwCurPos++];
+ ch = data_[cur_pos_++];
if (ch == '>')
dwSize = 2;
else
- m_dwCurPos--;
+ cur_pos_--;
+ } else if (ch == '(') {
+ int level = 1;
+ while (cur_pos_ < data_.GetLength()) {
+ if (data_[cur_pos_] == ')') {
+ level--;
+ if (level == 0)
+ break;
+ }
+
+ if (data_[cur_pos_] == '\\') {
+ if (data_.GetLength() <= cur_pos_)
+ break;
+
+ cur_pos_++;
+ } else if (data_[cur_pos_] == '(') {
+ level++;
+ }
+ if (data_.GetLength() <= cur_pos_)
+ break;
+
+ cur_pos_++;
+ }
+ if (cur_pos_ < data_.GetLength())
+ cur_pos_++;
+
+ dwSize = cur_pos_ - start_pos;
}
- return std::make_pair(pStart, dwSize);
+ return data_.Mid(start_pos, dwSize);
}
dwSize = 1;
- while (1) {
- if (m_dwSize <= m_dwCurPos)
- return std::make_pair(pStart, dwSize);
- ch = m_pData[m_dwCurPos++];
+ while (cur_pos_ < data_.GetLength()) {
+ ch = data_[cur_pos_++];
if (PDFCharIsDelimiter(ch) || PDFCharIsWhitespace(ch)) {
- m_dwCurPos--;
+ cur_pos_--;
break;
}
dwSize++;
}
- return std::make_pair(pStart, dwSize);
-}
-
-ByteStringView CPDF_SimpleParser::GetWord() {
- const uint8_t* pStart;
- uint32_t dwSize;
- std::tie(pStart, dwSize) = ParseWord();
-
- if (dwSize != 1)
- return ByteStringView(pStart, dwSize);
-
- if (pStart[0] == '<') {
- while (m_dwCurPos < m_dwSize && m_pData[m_dwCurPos] != '>')
- m_dwCurPos++;
-
- if (m_dwCurPos < m_dwSize)
- m_dwCurPos++;
-
- return ByteStringView(pStart,
- static_cast<size_t>(m_dwCurPos - (pStart - m_pData)));
- }
-
- if (pStart[0] == '(') {
- int level = 1;
- while (m_dwCurPos < m_dwSize) {
- if (m_pData[m_dwCurPos] == ')') {
- level--;
- if (level == 0)
- break;
- }
-
- if (m_pData[m_dwCurPos] == '\\') {
- if (m_dwSize <= m_dwCurPos)
- break;
-
- m_dwCurPos++;
- } else if (m_pData[m_dwCurPos] == '(') {
- level++;
- }
- if (m_dwSize <= m_dwCurPos)
- break;
-
- m_dwCurPos++;
- }
- if (m_dwCurPos < m_dwSize)
- m_dwCurPos++;
-
- return ByteStringView(pStart,
- static_cast<size_t>(m_dwCurPos - (pStart - m_pData)));
- }
- return ByteStringView(pStart, dwSize);
+ return data_.Mid(start_pos, dwSize);
}
bool CPDF_SimpleParser::FindTagParamFromStart(const ByteStringView& token,
@@ -160,9 +137,9 @@ bool CPDF_SimpleParser::FindTagParamFromStart(const ByteStringView& token,
std::vector<uint32_t> pBuf(nParams);
int buf_index = 0;
int buf_count = 0;
- m_dwCurPos = 0;
+ cur_pos_ = 0;
while (1) {
- pBuf[buf_index++] = m_dwCurPos;
+ pBuf[buf_index++] = cur_pos_;
if (buf_index == nParams)
buf_index = 0;
@@ -178,7 +155,7 @@ bool CPDF_SimpleParser::FindTagParamFromStart(const ByteStringView& token,
if (buf_count < nParams)
continue;
- m_dwCurPos = pBuf[buf_index];
+ cur_pos_ = pBuf[buf_index];
return true;
}
}
diff --git a/core/fpdfapi/parser/cpdf_simple_parser.h b/core/fpdfapi/parser/cpdf_simple_parser.h
index 659039e6fa..f02a58c98b 100644
--- a/core/fpdfapi/parser/cpdf_simple_parser.h
+++ b/core/fpdfapi/parser/cpdf_simple_parser.h
@@ -14,8 +14,8 @@
class CPDF_SimpleParser {
public:
- CPDF_SimpleParser(const uint8_t* pData, uint32_t dwSize);
explicit CPDF_SimpleParser(const ByteStringView& str);
+ ~CPDF_SimpleParser();
ByteStringView GetWord();
@@ -23,15 +23,11 @@ class CPDF_SimpleParser {
// and move the current position to the start of those parameters.
bool FindTagParamFromStart(const ByteStringView& token, int nParams);
- // For testing only.
- uint32_t GetCurPos() const { return m_dwCurPos; }
+ uint32_t GetCurPosForTest() const { return cur_pos_; }
private:
- std::pair<const uint8_t*, uint32_t> ParseWord();
-
- const uint8_t* m_pData;
- uint32_t m_dwSize;
- uint32_t m_dwCurPos;
+ const ByteStringView data_;
+ uint32_t cur_pos_ = 0;
};
#endif // CORE_FPDFAPI_PARSER_CPDF_SIMPLE_PARSER_H_
diff --git a/core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp b/core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp
index e8d3b7142a..b53b6c6c7f 100644
--- a/core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp
+++ b/core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp
@@ -49,7 +49,7 @@ TEST(SimpleParserTest, GetWord) {
};
for (size_t i = 0; i < FX_ArraySize(test_data); ++i) {
const pdfium::StrFuncTestData& data = test_data[i];
- CPDF_SimpleParser parser(data.input, data.input_size);
+ CPDF_SimpleParser parser(ByteStringView(data.input, data.input_size));
ByteStringView word = parser.GetWord();
EXPECT_EQ(data.expected_size, word.GetLength()) << " for case " << i;
if (data.expected_size != word.GetLength())
@@ -88,10 +88,10 @@ TEST(SimpleParserTest, FindTagParamFromStart) {
};
for (size_t i = 0; i < FX_ArraySize(test_data); ++i) {
const FindTagTestStruct& data = test_data[i];
- CPDF_SimpleParser parser(data.input, data.input_size);
+ CPDF_SimpleParser parser(ByteStringView(data.input, data.input_size));
EXPECT_EQ(data.result,
parser.FindTagParamFromStart(data.token, data.num_params))
<< " for case " << i;
- EXPECT_EQ(data.result_pos, parser.GetCurPos()) << " for case " << i;
+ EXPECT_EQ(data.result_pos, parser.GetCurPosForTest()) << " for case " << i;
}
}
diff --git a/core/fpdfapi/parser/cpdf_stream_acc.h b/core/fpdfapi/parser/cpdf_stream_acc.h
index d54e000097..ac5253a68b 100644
--- a/core/fpdfapi/parser/cpdf_stream_acc.h
+++ b/core/fpdfapi/parser/cpdf_stream_acc.h
@@ -30,6 +30,8 @@ class CPDF_StreamAcc : public Retainable {
const CPDF_Stream* GetStream() const { return m_pStream.Get(); }
CPDF_Dictionary* GetDict() const;
+ ByteStringView GetDataView() { return ByteStringView(GetData(), GetSize()); }
+
const uint8_t* GetData() const;
uint8_t* GetData();
uint32_t GetSize() const;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 22:02:24 +0000