PdfReader and PdfWriter moved entirely to PdfFile

PdfFile/SrcWriter/Utils.h

@@ -0,0 +1,138 @@
+/*
+ * (c) Copyright Ascensio System SIA 2010-2019
+ *
+ * This program is a free software product. You can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License (AGPL)
+ * version 3 as published by the Free Software Foundation. In accordance with
+ * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
+ * that Ascensio System SIA expressly excludes the warranty of non-infringement
+ * of any third-party rights.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
+ * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
+ *
+ * You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha
+ * street, Riga, Latvia, EU, LV-1050.
+ *
+ * The  interactive user interfaces in modified source and object code versions
+ * of the Program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU AGPL version 3.
+ *
+ * Pursuant to Section 7(b) of the License you must retain the original Product
+ * logo when distributing the program. Pursuant to Section 7(e) we decline to
+ * grant you any rights under trademark law for use of our trademarks.
+ *
+ * All the Product's GUI elements, including illustrations and icon sets, as
+ * well as technical writing content are licensed under the terms of the
+ * Creative Commons Attribution-ShareAlike 4.0 International. See the License
+ * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
+ *
+ */
+#ifndef _PDF_WRITER_SRC_UTILS_H
+#define _PDF_WRITER_SRC_UTILS_H
+
+#include "Types.h"
+
+#define NEEDS_ESCAPE(c)    (c < 0x21 || \
+                            c > 0x7e || \
+                            c == '\\' || \
+                            c == '%' || \
+                            c == '#' || \
+							c == '/' || \
+                            c == '(' || \
+                            c == ')' || \
+                            c == '<' || \
+                            c == '>' || \
+                            c == '[' || \
+                            c == ']' || \
+                            c == '{' || \
+                            c == '}')  \
+
+#define NEEDS_ESCAPE_DICTVALUE(c) (c != 0x9 && \
+                            c != 0xA && \
+                           (c < 0x20 || \
+                            c > 0x7e || \
+                            c == '\\' || \
+                            c == '%' || \
+                            c == '#' || \
+							c == '/' ))  \
+
+#define IS_WHITE_SPACE(c)   (c == 0x00 || \
+                             c == 0x09 || \
+                             c == 0x0A || \
+                             c == 0x0C || \
+                             c == 0x0D || \
+                             c == 0x20 ) \
+
+
+//-----------------------------------------------------------------------------------------------------
+//  CRC 32
+//-----------------------------------------------------------------------------------------------------
+class CRC32
+{
+
+public:   
+
+	CRC32()
+	{
+		const unsigned CRC_POLY = 0xEDB88320;
+
+		for ( unsigned int i = 0; i < 256; i++ )
+		{
+			unsigned int r, j;
+			for ( r = i, j = 8; j; j--)
+				r = r & 1? (r >> 1) ^ CRC_POLY: r >> 1;
+
+			m_pTable[i] = r;
+		}
+
+		m_nCRC32 = 0;
+	}
+	void Init(unsigned int nCRC = 0)
+	{
+		m_nCRC32 = nCRC;
+	}
+	void ProcessCRC(void* pData, int nLen)
+	{
+		const unsigned CRC_MASK = 0xD202EF8D;
+		register unsigned char *sData = reinterpret_cast<unsigned char*>(pData);
+		register unsigned int nCRC = m_nCRC32;
+
+		while ( nLen-- )
+		{
+			nCRC = m_pTable[static_cast<unsigned char>(nCRC) ^ *sData++] ^ nCRC >> 8;
+			nCRC ^= CRC_MASK;
+		}
+
+		m_nCRC32 = nCRC;
+	}
+
+protected:
+
+	unsigned int m_pTable[256];
+
+public:
+
+	unsigned int m_nCRC32;   
+
+};
+
+namespace PdfWriter
+{
+	BYTE* MemCpy(BYTE* pDst, const BYTE *pSrc, unsigned int unLen);
+	void  MemSet(void* pBuf, BYTE nChar, unsigned int unLen);
+
+	BYTE* StrCpy(char* sDst, const char* sSrc, char* pEnd);
+	int   StrLen(const char* sString, int nMaxLen);
+	char* ItoA  (char* sDst, int nVal, char* pEnd);
+	char* ItoA2 (char* sDst, unsigned int unVal, unsigned int unLen);
+	int   StrCmp(const char* s1, const char* s2);
+	char* FtoA  (char* sDst, double dVal, char* pEnd);
+
+	void  UIntChangeBit(unsigned int& nValue, short nBit);
+	void  UIntChangeBit2(unsigned int& nValue, short nBit);
+}
+
+#endif // _PDF_WRITER_SRC_UTILS_H
+