diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp')
| -rw-r--r-- | core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp | 906 |
1 files changed, 453 insertions, 453 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp index cc3d29c9ed..7559bcee91 100644 --- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp +++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp @@ -1,453 +1,453 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "../../../include/fpdfapi/fpdf_parser.h"
-extern const FX_LPCSTR _PDF_CharType =
- "WRRRRRRRRWWRWWRRRRRRRRRRRRRRRRRR"
- "WRRRRDRRDDRNRNNDNNNNNNNNNNRRDRDR"
- "RRRRRRRRRRRRRRRRRRRRRRRRRRRDRDRR"
- "RRRRRRRRRRRRRRRRRRRRRRRRRRRDRDRR"
- "WRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR"
- "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR"
- "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR"
- "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRW";
-#ifndef MAX_PATH
-#define MAX_PATH 4096
-#endif
-CPDF_SimpleParser::CPDF_SimpleParser(FX_LPCBYTE pData, FX_DWORD dwSize)
-{
- m_pData = pData;
- m_dwSize = dwSize;
- m_dwCurPos = 0;
-}
-CPDF_SimpleParser::CPDF_SimpleParser(FX_BSTR str)
-{
- m_pData = str;
- m_dwSize = str.GetLength();
- m_dwCurPos = 0;
-}
-void CPDF_SimpleParser::ParseWord(FX_LPCBYTE& pStart, FX_DWORD& dwSize, int& type)
-{
- pStart = NULL;
- dwSize = 0;
- type = PDFWORD_EOF;
- FX_BYTE ch;
- char chartype;
- while (1) {
- if (m_dwSize <= m_dwCurPos) {
- return;
- }
- ch = m_pData[m_dwCurPos++];
- chartype = _PDF_CharType[ch];
- while (chartype == 'W') {
- if (m_dwSize <= m_dwCurPos) {
- return;
- }
- ch = m_pData[m_dwCurPos++];
- chartype = _PDF_CharType[ch];
- }
- if (ch != '%') {
- break;
- }
- while (1) {
- if (m_dwSize <= m_dwCurPos) {
- return;
- }
- ch = m_pData[m_dwCurPos++];
- if (ch == '\r' || ch == '\n') {
- break;
- }
- }
- chartype = _PDF_CharType[ch];
- }
- FX_DWORD start_pos = m_dwCurPos - 1;
- pStart = m_pData + start_pos;
- if (chartype == 'D') {
- if (ch == '/') {
- while (1) {
- if (m_dwSize <= m_dwCurPos) {
- return;
- }
- ch = m_pData[m_dwCurPos++];
- chartype = _PDF_CharType[ch];
- if (chartype != 'R' && chartype != 'N') {
- m_dwCurPos --;
- dwSize = m_dwCurPos - start_pos;
- type = PDFWORD_NAME;
- return;
- }
- }
- } else {
- type = PDFWORD_DELIMITER;
- dwSize = 1;
- if (ch == '<') {
- if (m_dwSize <= m_dwCurPos) {
- return;
- }
- ch = m_pData[m_dwCurPos++];
- if (ch == '<') {
- dwSize = 2;
- } else {
- m_dwCurPos --;
- }
- } else if (ch == '>') {
- if (m_dwSize <= m_dwCurPos) {
- return;
- }
- ch = m_pData[m_dwCurPos++];
- if (ch == '>') {
- dwSize = 2;
- } else {
- m_dwCurPos --;
- }
- }
- }
- return;
- }
- type = PDFWORD_NUMBER;
- dwSize = 1;
- while (1) {
- if (chartype != 'N') {
- type = PDFWORD_TEXT;
- }
- if (m_dwSize <= m_dwCurPos) {
- return;
- }
- ch = m_pData[m_dwCurPos++];
- chartype = _PDF_CharType[ch];
- if (chartype == 'D' || chartype == 'W') {
- m_dwCurPos --;
- break;
- }
- dwSize ++;
- }
-}
-CFX_ByteStringC CPDF_SimpleParser::GetWord()
-{
- FX_LPCBYTE pStart;
- FX_DWORD dwSize;
- int type;
- ParseWord(pStart, dwSize, type);
- if (dwSize == 1 && pStart[0] == '<') {
- while (m_dwCurPos < m_dwSize && m_pData[m_dwCurPos] != '>') {
- m_dwCurPos ++;
- }
- if (m_dwCurPos < m_dwSize) {
- m_dwCurPos ++;
- }
- return CFX_ByteStringC(pStart, (FX_STRSIZE)(m_dwCurPos - (pStart - m_pData)));
- } else if (dwSize == 1 && 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 CFX_ByteStringC(pStart, (FX_STRSIZE)(m_dwCurPos - (pStart - m_pData)));
- }
- return CFX_ByteStringC(pStart, dwSize);
-}
-FX_BOOL CPDF_SimpleParser::SearchToken(FX_BSTR token)
-{
- int token_len = token.GetLength();
- while (m_dwCurPos < m_dwSize - token_len) {
- if (FXSYS_memcmp32(m_pData + m_dwCurPos, token, token_len) == 0) {
- break;
- }
- m_dwCurPos ++;
- }
- if (m_dwCurPos == m_dwSize - token_len) {
- return FALSE;
- }
- m_dwCurPos += token_len;
- return TRUE;
-}
-FX_BOOL CPDF_SimpleParser::SkipWord(FX_BSTR token)
-{
- while (1) {
- CFX_ByteStringC word = GetWord();
- if (word.IsEmpty()) {
- return FALSE;
- }
- if (word == token) {
- return TRUE;
- }
- }
- return FALSE;
-}
-FX_BOOL CPDF_SimpleParser::FindTagPair(FX_BSTR start_token, FX_BSTR end_token,
- FX_DWORD& start_pos, FX_DWORD& end_pos)
-{
- if (!start_token.IsEmpty()) {
- if (!SkipWord(start_token)) {
- return FALSE;
- }
- start_pos = m_dwCurPos;
- }
- while (1) {
- end_pos = m_dwCurPos;
- CFX_ByteStringC word = GetWord();
- if (word.IsEmpty()) {
- return FALSE;
- }
- if (word == end_token) {
- return TRUE;
- }
- }
- return FALSE;
-}
-FX_BOOL CPDF_SimpleParser::FindTagParam(FX_BSTR token, int nParams)
-{
- nParams ++;
- FX_DWORD* pBuf = FX_Alloc(FX_DWORD, nParams);
- int buf_index = 0;
- int buf_count = 0;
- while (1) {
- pBuf[buf_index++] = m_dwCurPos;
- if (buf_index == nParams) {
- buf_index = 0;
- }
- buf_count ++;
- if (buf_count > nParams) {
- buf_count = nParams;
- }
- CFX_ByteStringC word = GetWord();
- if (word.IsEmpty()) {
- FX_Free(pBuf);
- return FALSE;
- }
- if (word == token) {
- if (buf_count < nParams) {
- continue;
- }
- m_dwCurPos = pBuf[buf_index];
- FX_Free(pBuf);
- return TRUE;
- }
- }
- return FALSE;
-}
-static int _hex2dec(char ch)
-{
- if (ch >= '0' && ch <= '9') {
- return ch - '0';
- }
- if (ch >= 'a' && ch <= 'f') {
- return ch - 'a' + 10;
- }
- if (ch >= 'A' && ch <= 'F') {
- return ch - 'A' + 10;
- }
- return 0;
-}
-CFX_ByteString PDF_NameDecode(FX_BSTR bstr)
-{
- int size = bstr.GetLength();
- FX_LPCSTR pSrc = bstr.GetCStr();
- if (FXSYS_memchr(pSrc, '#', size) == NULL) {
- return bstr;
- }
- CFX_ByteString result;
- FX_LPSTR pDestStart = result.GetBuffer(size);
- FX_LPSTR pDest = pDestStart;
- for (int i = 0; i < size; i ++) {
- if (pSrc[i] == '#' && i < size - 2) {
- *pDest ++ = _hex2dec(pSrc[i + 1]) * 16 + _hex2dec(pSrc[i + 2]);
- i += 2;
- } else {
- *pDest ++ = pSrc[i];
- }
- }
- result.ReleaseBuffer((FX_STRSIZE)(pDest - pDestStart));
- return result;
-}
-CFX_ByteString PDF_NameDecode(const CFX_ByteString& orig)
-{
- if (FXSYS_memchr((FX_LPCSTR)orig, '#', orig.GetLength()) == NULL) {
- return orig;
- }
- return PDF_NameDecode(CFX_ByteStringC(orig));
-}
-CFX_ByteString PDF_NameEncode(const CFX_ByteString& orig)
-{
- FX_LPBYTE src_buf = (FX_LPBYTE)(FX_LPCSTR)orig;
- int src_len = orig.GetLength();
- int dest_len = 0;
- int i;
- for (i = 0; i < src_len; i ++) {
- FX_BYTE ch = src_buf[i];
- if (ch >= 0x80 || _PDF_CharType[ch] == 'W' || ch == '#' ||
- _PDF_CharType[ch] == 'D') {
- dest_len += 3;
- } else {
- dest_len ++;
- }
- }
- if (dest_len == src_len) {
- return orig;
- }
- CFX_ByteString res;
- FX_LPSTR dest_buf = res.GetBuffer(dest_len);
- dest_len = 0;
- for (i = 0; i < src_len; i ++) {
- FX_BYTE ch = src_buf[i];
- if (ch >= 0x80 || _PDF_CharType[ch] == 'W' || ch == '#' ||
- _PDF_CharType[ch] == 'D') {
- dest_buf[dest_len++] = '#';
- dest_buf[dest_len++] = "0123456789ABCDEF"[ch / 16];
- dest_buf[dest_len++] = "0123456789ABCDEF"[ch % 16];
- } else {
- dest_buf[dest_len++] = ch;
- }
- }
- dest_buf[dest_len] = 0;
- res.ReleaseBuffer();
- return res;
-}
-CFX_ByteTextBuf& operator << (CFX_ByteTextBuf& buf, const CPDF_Object* pObj)
-{
- if (pObj == NULL) {
- buf << FX_BSTRC(" null");
- return buf;
- }
- switch (pObj->GetType()) {
- case PDFOBJ_NULL:
- buf << FX_BSTRC(" null");
- break;
- case PDFOBJ_BOOLEAN:
- case PDFOBJ_NUMBER:
- buf << " " << pObj->GetString();
- break;
- case PDFOBJ_STRING: {
- CFX_ByteString str = pObj->GetString();
- FX_BOOL bHex = ((CPDF_String*)pObj)->IsHex();
- buf << PDF_EncodeString(str, bHex);
- break;
- }
- case PDFOBJ_NAME: {
- CFX_ByteString str = pObj->GetString();
- buf << FX_BSTRC("/") << PDF_NameEncode(str);
- break;
- }
- case PDFOBJ_REFERENCE: {
- CPDF_Reference* p = (CPDF_Reference*)pObj;
- buf << " " << p->GetRefObjNum() << FX_BSTRC(" 0 R ");
- break;
- }
- case PDFOBJ_ARRAY: {
- CPDF_Array* p = (CPDF_Array*)pObj;
- buf << FX_BSTRC("[");
- for (FX_DWORD i = 0; i < p->GetCount(); i ++) {
- CPDF_Object* pElement = p->GetElement(i);
- if (pElement->GetObjNum()) {
- buf << " " << pElement->GetObjNum() << FX_BSTRC(" 0 R");
- } else {
- buf << pElement;
- }
- }
- buf << FX_BSTRC("]");
- break;
- }
- case PDFOBJ_DICTIONARY: {
- CPDF_Dictionary* p = (CPDF_Dictionary*)pObj;
- buf << FX_BSTRC("<<");
- FX_POSITION pos = p->GetStartPos();
- while (pos) {
- CFX_ByteString key;
- CPDF_Object* pValue = p->GetNextElement(pos, key);
- buf << FX_BSTRC("/") << PDF_NameEncode(key);
- if (pValue->GetObjNum()) {
- buf << " " << pValue->GetObjNum() << FX_BSTRC(" 0 R ");
- } else {
- buf << pValue;
- }
- }
- buf << FX_BSTRC(">>");
- break;
- }
- case PDFOBJ_STREAM: {
- CPDF_Stream* p = (CPDF_Stream*)pObj;
- buf << p->GetDict() << FX_BSTRC("stream\r\n");
- CPDF_StreamAcc acc;
- acc.LoadAllData(p, TRUE);
- buf.AppendBlock(acc.GetData(), acc.GetSize());
- buf << FX_BSTRC("\r\nendstream");
- break;
- }
- default:
- ASSERT(FALSE);
- break;
- }
- return buf;
-}
-FX_FLOAT PDF_ClipFloat(FX_FLOAT f)
-{
- if (f < 0) {
- return 0;
- }
- if (f > 1.0f) {
- return 1.0f;
- }
- return f;
-}
-static CPDF_Object* SearchNumberNode(CPDF_Dictionary* pNode, int num)
-{
- CPDF_Array* pLimits = pNode->GetArray("Limits");
- if (pLimits && (num < pLimits->GetInteger(0) || num > pLimits->GetInteger(1))) {
- return NULL;
- }
- CPDF_Array* pNumbers = pNode->GetArray("Nums");
- if (pNumbers) {
- FX_DWORD dwCount = pNumbers->GetCount() / 2;
- for (FX_DWORD i = 0; i < dwCount; i ++) {
- int index = pNumbers->GetInteger(i * 2);
- if (num == index) {
- return pNumbers->GetElementValue(i * 2 + 1);
- }
- if (index > num) {
- break;
- }
- }
- return NULL;
- }
- CPDF_Array* pKids = pNode->GetArray("Kids");
- if (pKids == NULL) {
- return NULL;
- }
- for (FX_DWORD i = 0; i < pKids->GetCount(); i ++) {
- CPDF_Dictionary* pKid = pKids->GetDict(i);
- if (pKid == NULL) {
- continue;
- }
- CPDF_Object* pFound = SearchNumberNode(pKid, num);
- if (pFound) {
- return pFound;
- }
- }
- return NULL;
-}
-CPDF_Object* CPDF_NumberTree::LookupValue(int num)
-{
- return SearchNumberNode(m_pRoot, num);
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "../../../include/fpdfapi/fpdf_parser.h" +extern const FX_LPCSTR _PDF_CharType = + "WRRRRRRRRWWRWWRRRRRRRRRRRRRRRRRR" + "WRRRRDRRDDRNRNNDNNNNNNNNNNRRDRDR" + "RRRRRRRRRRRRRRRRRRRRRRRRRRRDRDRR" + "RRRRRRRRRRRRRRRRRRRRRRRRRRRDRDRR" + "WRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR" + "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR" + "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR" + "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRW"; +#ifndef MAX_PATH +#define MAX_PATH 4096 +#endif +CPDF_SimpleParser::CPDF_SimpleParser(FX_LPCBYTE pData, FX_DWORD dwSize) +{ + m_pData = pData; + m_dwSize = dwSize; + m_dwCurPos = 0; +} +CPDF_SimpleParser::CPDF_SimpleParser(FX_BSTR str) +{ + m_pData = str; + m_dwSize = str.GetLength(); + m_dwCurPos = 0; +} +void CPDF_SimpleParser::ParseWord(FX_LPCBYTE& pStart, FX_DWORD& dwSize, int& type) +{ + pStart = NULL; + dwSize = 0; + type = PDFWORD_EOF; + FX_BYTE ch; + char chartype; + while (1) { + if (m_dwSize <= m_dwCurPos) { + return; + } + ch = m_pData[m_dwCurPos++]; + chartype = _PDF_CharType[ch]; + while (chartype == 'W') { + if (m_dwSize <= m_dwCurPos) { + return; + } + ch = m_pData[m_dwCurPos++]; + chartype = _PDF_CharType[ch]; + } + if (ch != '%') { + break; + } + while (1) { + if (m_dwSize <= m_dwCurPos) { + return; + } + ch = m_pData[m_dwCurPos++]; + if (ch == '\r' || ch == '\n') { + break; + } + } + chartype = _PDF_CharType[ch]; + } + FX_DWORD start_pos = m_dwCurPos - 1; + pStart = m_pData + start_pos; + if (chartype == 'D') { + if (ch == '/') { + while (1) { + if (m_dwSize <= m_dwCurPos) { + return; + } + ch = m_pData[m_dwCurPos++]; + chartype = _PDF_CharType[ch]; + if (chartype != 'R' && chartype != 'N') { + m_dwCurPos --; + dwSize = m_dwCurPos - start_pos; + type = PDFWORD_NAME; + return; + } + } + } else { + type = PDFWORD_DELIMITER; + dwSize = 1; + if (ch == '<') { + if (m_dwSize <= m_dwCurPos) { + return; + } + ch = m_pData[m_dwCurPos++]; + if (ch == '<') { + dwSize = 2; + } else { + m_dwCurPos --; + } + } else if (ch == '>') { + if (m_dwSize <= m_dwCurPos) { + return; + } + ch = m_pData[m_dwCurPos++]; + if (ch == '>') { + dwSize = 2; + } else { + m_dwCurPos --; + } + } + } + return; + } + type = PDFWORD_NUMBER; + dwSize = 1; + while (1) { + if (chartype != 'N') { + type = PDFWORD_TEXT; + } + if (m_dwSize <= m_dwCurPos) { + return; + } + ch = m_pData[m_dwCurPos++]; + chartype = _PDF_CharType[ch]; + if (chartype == 'D' || chartype == 'W') { + m_dwCurPos --; + break; + } + dwSize ++; + } +} +CFX_ByteStringC CPDF_SimpleParser::GetWord() +{ + FX_LPCBYTE pStart; + FX_DWORD dwSize; + int type; + ParseWord(pStart, dwSize, type); + if (dwSize == 1 && pStart[0] == '<') { + while (m_dwCurPos < m_dwSize && m_pData[m_dwCurPos] != '>') { + m_dwCurPos ++; + } + if (m_dwCurPos < m_dwSize) { + m_dwCurPos ++; + } + return CFX_ByteStringC(pStart, (FX_STRSIZE)(m_dwCurPos - (pStart - m_pData))); + } else if (dwSize == 1 && 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 CFX_ByteStringC(pStart, (FX_STRSIZE)(m_dwCurPos - (pStart - m_pData))); + } + return CFX_ByteStringC(pStart, dwSize); +} +FX_BOOL CPDF_SimpleParser::SearchToken(FX_BSTR token) +{ + int token_len = token.GetLength(); + while (m_dwCurPos < m_dwSize - token_len) { + if (FXSYS_memcmp32(m_pData + m_dwCurPos, token, token_len) == 0) { + break; + } + m_dwCurPos ++; + } + if (m_dwCurPos == m_dwSize - token_len) { + return FALSE; + } + m_dwCurPos += token_len; + return TRUE; +} +FX_BOOL CPDF_SimpleParser::SkipWord(FX_BSTR token) +{ + while (1) { + CFX_ByteStringC word = GetWord(); + if (word.IsEmpty()) { + return FALSE; + } + if (word == token) { + return TRUE; + } + } + return FALSE; +} +FX_BOOL CPDF_SimpleParser::FindTagPair(FX_BSTR start_token, FX_BSTR end_token, + FX_DWORD& start_pos, FX_DWORD& end_pos) +{ + if (!start_token.IsEmpty()) { + if (!SkipWord(start_token)) { + return FALSE; + } + start_pos = m_dwCurPos; + } + while (1) { + end_pos = m_dwCurPos; + CFX_ByteStringC word = GetWord(); + if (word.IsEmpty()) { + return FALSE; + } + if (word == end_token) { + return TRUE; + } + } + return FALSE; +} +FX_BOOL CPDF_SimpleParser::FindTagParam(FX_BSTR token, int nParams) +{ + nParams ++; + FX_DWORD* pBuf = FX_Alloc(FX_DWORD, nParams); + int buf_index = 0; + int buf_count = 0; + while (1) { + pBuf[buf_index++] = m_dwCurPos; + if (buf_index == nParams) { + buf_index = 0; + } + buf_count ++; + if (buf_count > nParams) { + buf_count = nParams; + } + CFX_ByteStringC word = GetWord(); + if (word.IsEmpty()) { + FX_Free(pBuf); + return FALSE; + } + if (word == token) { + if (buf_count < nParams) { + continue; + } + m_dwCurPos = pBuf[buf_index]; + FX_Free(pBuf); + return TRUE; + } + } + return FALSE; +} +static int _hex2dec(char ch) +{ + if (ch >= '0' && ch <= '9') { + return ch - '0'; + } + if (ch >= 'a' && ch <= 'f') { + return ch - 'a' + 10; + } + if (ch >= 'A' && ch <= 'F') { + return ch - 'A' + 10; + } + return 0; +} +CFX_ByteString PDF_NameDecode(FX_BSTR bstr) +{ + int size = bstr.GetLength(); + FX_LPCSTR pSrc = bstr.GetCStr(); + if (FXSYS_memchr(pSrc, '#', size) == NULL) { + return bstr; + } + CFX_ByteString result; + FX_LPSTR pDestStart = result.GetBuffer(size); + FX_LPSTR pDest = pDestStart; + for (int i = 0; i < size; i ++) { + if (pSrc[i] == '#' && i < size - 2) { + *pDest ++ = _hex2dec(pSrc[i + 1]) * 16 + _hex2dec(pSrc[i + 2]); + i += 2; + } else { + *pDest ++ = pSrc[i]; + } + } + result.ReleaseBuffer((FX_STRSIZE)(pDest - pDestStart)); + return result; +} +CFX_ByteString PDF_NameDecode(const CFX_ByteString& orig) +{ + if (FXSYS_memchr((FX_LPCSTR)orig, '#', orig.GetLength()) == NULL) { + return orig; + } + return PDF_NameDecode(CFX_ByteStringC(orig)); +} +CFX_ByteString PDF_NameEncode(const CFX_ByteString& orig) +{ + FX_LPBYTE src_buf = (FX_LPBYTE)(FX_LPCSTR)orig; + int src_len = orig.GetLength(); + int dest_len = 0; + int i; + for (i = 0; i < src_len; i ++) { + FX_BYTE ch = src_buf[i]; + if (ch >= 0x80 || _PDF_CharType[ch] == 'W' || ch == '#' || + _PDF_CharType[ch] == 'D') { + dest_len += 3; + } else { + dest_len ++; + } + } + if (dest_len == src_len) { + return orig; + } + CFX_ByteString res; + FX_LPSTR dest_buf = res.GetBuffer(dest_len); + dest_len = 0; + for (i = 0; i < src_len; i ++) { + FX_BYTE ch = src_buf[i]; + if (ch >= 0x80 || _PDF_CharType[ch] == 'W' || ch == '#' || + _PDF_CharType[ch] == 'D') { + dest_buf[dest_len++] = '#'; + dest_buf[dest_len++] = "0123456789ABCDEF"[ch / 16]; + dest_buf[dest_len++] = "0123456789ABCDEF"[ch % 16]; + } else { + dest_buf[dest_len++] = ch; + } + } + dest_buf[dest_len] = 0; + res.ReleaseBuffer(); + return res; +} +CFX_ByteTextBuf& operator << (CFX_ByteTextBuf& buf, const CPDF_Object* pObj) +{ + if (pObj == NULL) { + buf << FX_BSTRC(" null"); + return buf; + } + switch (pObj->GetType()) { + case PDFOBJ_NULL: + buf << FX_BSTRC(" null"); + break; + case PDFOBJ_BOOLEAN: + case PDFOBJ_NUMBER: + buf << " " << pObj->GetString(); + break; + case PDFOBJ_STRING: { + CFX_ByteString str = pObj->GetString(); + FX_BOOL bHex = ((CPDF_String*)pObj)->IsHex(); + buf << PDF_EncodeString(str, bHex); + break; + } + case PDFOBJ_NAME: { + CFX_ByteString str = pObj->GetString(); + buf << FX_BSTRC("/") << PDF_NameEncode(str); + break; + } + case PDFOBJ_REFERENCE: { + CPDF_Reference* p = (CPDF_Reference*)pObj; + buf << " " << p->GetRefObjNum() << FX_BSTRC(" 0 R "); + break; + } + case PDFOBJ_ARRAY: { + CPDF_Array* p = (CPDF_Array*)pObj; + buf << FX_BSTRC("["); + for (FX_DWORD i = 0; i < p->GetCount(); i ++) { + CPDF_Object* pElement = p->GetElement(i); + if (pElement->GetObjNum()) { + buf << " " << pElement->GetObjNum() << FX_BSTRC(" 0 R"); + } else { + buf << pElement; + } + } + buf << FX_BSTRC("]"); + break; + } + case PDFOBJ_DICTIONARY: { + CPDF_Dictionary* p = (CPDF_Dictionary*)pObj; + buf << FX_BSTRC("<<"); + FX_POSITION pos = p->GetStartPos(); + while (pos) { + CFX_ByteString key; + CPDF_Object* pValue = p->GetNextElement(pos, key); + buf << FX_BSTRC("/") << PDF_NameEncode(key); + if (pValue->GetObjNum()) { + buf << " " << pValue->GetObjNum() << FX_BSTRC(" 0 R "); + } else { + buf << pValue; + } + } + buf << FX_BSTRC(">>"); + break; + } + case PDFOBJ_STREAM: { + CPDF_Stream* p = (CPDF_Stream*)pObj; + buf << p->GetDict() << FX_BSTRC("stream\r\n"); + CPDF_StreamAcc acc; + acc.LoadAllData(p, TRUE); + buf.AppendBlock(acc.GetData(), acc.GetSize()); + buf << FX_BSTRC("\r\nendstream"); + break; + } + default: + ASSERT(FALSE); + break; + } + return buf; +} +FX_FLOAT PDF_ClipFloat(FX_FLOAT f) +{ + if (f < 0) { + return 0; + } + if (f > 1.0f) { + return 1.0f; + } + return f; +} +static CPDF_Object* SearchNumberNode(CPDF_Dictionary* pNode, int num) +{ + CPDF_Array* pLimits = pNode->GetArray("Limits"); + if (pLimits && (num < pLimits->GetInteger(0) || num > pLimits->GetInteger(1))) { + return NULL; + } + CPDF_Array* pNumbers = pNode->GetArray("Nums"); + if (pNumbers) { + FX_DWORD dwCount = pNumbers->GetCount() / 2; + for (FX_DWORD i = 0; i < dwCount; i ++) { + int index = pNumbers->GetInteger(i * 2); + if (num == index) { + return pNumbers->GetElementValue(i * 2 + 1); + } + if (index > num) { + break; + } + } + return NULL; + } + CPDF_Array* pKids = pNode->GetArray("Kids"); + if (pKids == NULL) { + return NULL; + } + for (FX_DWORD i = 0; i < pKids->GetCount(); i ++) { + CPDF_Dictionary* pKid = pKids->GetDict(i); + if (pKid == NULL) { + continue; + } + CPDF_Object* pFound = SearchNumberNode(pKid, num); + if (pFound) { + return pFound; + } + } + return NULL; +} +CPDF_Object* CPDF_NumberTree::LookupValue(int num) +{ + return SearchNumberNode(m_pRoot, num); +} |