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-rw-r--r--mimelib/dwstring.cpp1955
1 files changed, 1955 insertions, 0 deletions
diff --git a/mimelib/dwstring.cpp b/mimelib/dwstring.cpp
new file mode 100644
index 000000000..cd3c7b1ab
--- /dev/null
+++ b/mimelib/dwstring.cpp
@@ -0,0 +1,1955 @@
+//=============================================================================
+// File: dwstring.cpp
+// Contents: Definitions for DwString
+// Maintainer: Doug Sauder <dwsauder@fwb.gulf.net>
+// WWW: http://www.fwb.gulf.net/~dwsauder/mimepp.html
+//
+// Copyright (c) 1996, 1997 Douglas W. Sauder
+// All rights reserved.
+//
+// IN NO EVENT SHALL DOUGLAS W. SAUDER BE LIABLE TO ANY PARTY FOR DIRECT,
+// INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
+// THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF DOUGLAS W. SAUDER
+// HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// DOUGLAS W. SAUDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT
+// NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
+// BASIS, AND DOUGLAS W. SAUDER HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
+// SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+//
+//=============================================================================
+
+#define DW_IMPLEMENTATION
+
+#include <mimelib/config.h>
+#include <mimelib/debug.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <new>
+#include <mimelib/string.h>
+
+// mmap
+#include <unistd.h>
+#include <sys/mman.h>
+
+
+#define DW_MIN(a,b) ((a) <= (b) ? (a) : (b))
+#define DW_MAX(a,b) ((a) >= (b) ? (a) : (b))
+
+/* In some locales (such as tr_TR.UTF-8, az_AZ) using tolower() can cause
+ unexpected results. Keywords must be compared in a
+ locale-independent manner */
+static char dw_asciitolower( const char c )
+{
+ if ( c >= 'A' && c <= 'Z' )
+ return c - 'A' + 'a';
+ else
+ return c;
+}
+
+static char dw_asciitoupper( const char c )
+{
+ if ( c >= 'a' && c <= 'z' )
+ return c - 'a' + 'A';
+ else
+ return c;
+}
+
+static int dw_strasciicasecmp(const char* s1, size_t len1, const char* s2,
+ size_t len2)
+{
+ assert(s1 != 0);
+ assert(s2 != 0);
+ size_t len = DW_MIN(len1, len2);
+ for (size_t i=0; i < len; ++i) {
+ int c1 = dw_asciitolower( s1[i] );
+ int c2 = dw_asciitolower( s2[i] );
+
+ if ( c1 < c2 )
+ return -1;
+ else if ( c1 > c2 )
+ return 1;
+ }
+ if (len1 < len2) {
+ return -1;
+ }
+ else if (len1 > len2) {
+ return 1;
+ }
+ return 0;
+}
+
+#if 0
+static int dw_strcasecmp(const char* s1, size_t len1, const char* s2,
+ size_t len2)
+{
+ assert(s1 != 0);
+ assert(s2 != 0);
+ size_t len = DW_MIN(len1, len2);
+ for (size_t i=0; i < len; ++i) {
+ int c1 = tolower(s1[i]);
+ int c2 = tolower(s2[i]);
+ if (c1 < c2) {
+ return -1;
+ }
+ else if (c1 > c2) {
+ return 1;
+ }
+ }
+ if (len1 < len2) {
+ return -1;
+ }
+ else if (len1 > len2) {
+ return 1;
+ }
+ return 0;
+}
+#endif
+
+
+static int dw_strcmp(const char* s1, size_t len1, const char* s2, size_t len2)
+{
+ assert(s1 != 0);
+ assert(s2 != 0);
+ size_t len = DW_MIN(len1, len2);
+ for (size_t i=0; i < len; ++i) {
+ if (s1[i] < s2[i]) {
+ return -1;
+ }
+ else if (s1[i] > s2[i]) {
+ return 1;
+ }
+ }
+ if (len1 < len2) {
+ return -1;
+ }
+ else if (len1 > len2) {
+ return 1;
+ }
+ return 0;
+}
+
+
+// Copy
+
+inline void mem_copy(const char* src, size_t n, char* dest)
+{
+ assert(src != 0);
+ assert(dest != 0);
+ assert(src != dest);
+ if (n == 0 || src == dest || !src || !dest) return;
+ memmove(dest, src, n);
+}
+
+#if !defined(DW_USE_ANSI_STRING)
+
+
+// Allocate buffer whose size is a power of 2
+
+static char* mem_alloc(size_t* aSize)
+{
+ assert(aSize != 0);
+ // minimum size is 32
+ size_t size = 32;
+ while (size < *aSize) {
+ size <<= 1;
+ }
+ *aSize = 0;
+ char* buf = new char[size];
+ if (buf != 0)
+ *aSize = size;
+ return buf;
+}
+
+
+// Free buffer
+
+inline void mem_free(char* buf)
+{
+ assert(buf != 0);
+ if (buf && buf != DwString::sEmptyBuffer)
+ delete [] buf;
+}
+
+
+inline DwStringRep* new_rep_reference(DwStringRep* rep)
+{
+ assert(rep != 0);
+ ++rep->mRefCount;
+ return rep;
+}
+
+
+inline void delete_rep_safely(DwStringRep* rep)
+{
+ assert(rep != 0);
+#if defined(DW_DEBUG_VERSION) || defined(DW_DEVELOPMENT_VERSION)
+ if (rep->mRefCount <= 0) {
+ std::cerr << "Error: attempt to delete a DwStringRep "
+ "with ref count <= 0" << std::endl;
+ std::cerr << "(Possibly 'delete' was called twice for same object)"
+ << std::endl;
+ abort();
+ }
+#endif // defined(DW_DEBUG_VERSION) || defined(DW_DEVELOPMENT_VERSION)
+ --rep->mRefCount;
+ if (rep->mRefCount == 0) {
+ delete rep;
+ }
+}
+
+
+//--------------------------------------------------------------------------
+
+
+//DwStringRep* DwStringRep::theirPool = NULL;
+//int DwStringRep::theirPoolCount = 0;
+
+
+// DwStringRep takes ownership of the buffer passed as an argument
+
+DwStringRep::DwStringRep(char* aBuf, size_t aSize)
+{
+ assert(aBuf != 0);
+ mSize = aSize;
+ mBuffer = aBuf;
+ mRefCount = 1;
+ mPageMod = 0;
+}
+
+DwStringRep::DwStringRep(FILE* aFile, size_t aSize)
+{
+ assert(aFile != 0);
+ static int pagesize = -1;
+ if (pagesize < 0)
+ pagesize = getpagesize();
+ assert(pagesize != 0);
+ int tell = ftell(aFile);
+ mPageMod = tell % pagesize;
+ mSize = aSize;
+ mRefCount = 1;
+
+ mBuffer = (char *)mmap(0, aSize + mPageMod, PROT_READ, MAP_SHARED, fileno(aFile), tell - mPageMod) + mPageMod;
+ ++mPageMod;
+ if (mBuffer == MAP_FAILED) {
+ mBuffer = 0;
+ mSize = 0;
+ mPageMod = 0;
+ }
+}
+
+
+DwStringRep::~DwStringRep()
+{
+#if defined (DW_DEBUG_VERSION) || defined (DW_DEVELOPMENT_VERSION)
+ if (mBuffer == 0) {
+ std::cerr << "DwStringRep destructor called for bad DwStringRep object"
+ << std::endl;
+ std::cerr << "(Possibly 'delete' was called twice for same object)"
+ << std::endl;
+ abort();
+ }
+#endif // defined (DW_DEBUG_VERSION) || defined (DW_DEVELOPMENT_VERSION)
+ if (mPageMod) {
+ --mPageMod;
+ munmap(mBuffer - mPageMod, mSize + mPageMod);
+ } else {
+ mem_free(mBuffer);
+ }
+ //DEV_STMT(mBuffer = 0)
+}
+
+
+void DwStringRep::CheckInvariants() const
+{
+#if defined (DW_DEBUG_VERSION)
+ assert(mBuffer != 0);
+ assert(mSize > 0);
+ assert(mRefCount > 0);
+#endif // defined (DW_DEBUG_VERSION)
+}
+
+
+// Efficient memory management. May be used at some point in the future.
+
+#if 0
+void* DwStringRep::operator new(size_t sz)
+{
+ void* rep;
+ if (theirPoolCount > 0) {
+ --theirPoolCount;
+ rep = theirPool;
+ theirPool = theirPool->mNext;
+ }
+ else {
+ rep = new char[sz];
+ }
+ return rep;
+}
+
+
+void DwStringRep::operator delete(void* aRep, size_t)
+{
+ if (theirPoolCount < 200) {
+ DwStringRep* rep = (DwStringRep*) aRep;
+ ++theirPoolCount;
+ rep->mNext = theirPool;
+ theirPool = rep;
+ }
+ else {
+ delete [] (char*) aRep;
+ }
+}
+#endif
+
+
+//--------------------------------------------------------------------------
+
+const size_t DwString::kEmptyBufferSize = 4;
+char DW_EXPORT DwString::sEmptyBuffer[]=" ";
+DwStringRep* DwString::sEmptyRep = 0;
+
+const size_t DwString::npos = (size_t) -1;
+
+DwString::DwString()
+{
+ if (sEmptyRep == 0) {
+ sEmptyBuffer[0] = 0;
+ sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
+ assert(sEmptyRep != 0);
+ }
+ DBG_STMT(sEmptyRep->CheckInvariants())
+ mRep = new_rep_reference(sEmptyRep);
+ mStart = 0;
+ mLength = 0;
+}
+
+
+DwString::DwString(const DwString& aStr, size_t aPos, size_t aLen)
+{
+ assert(aPos <= aStr.mLength);
+ if (sEmptyRep == 0) {
+ sEmptyBuffer[0] = 0;
+ sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
+ assert(sEmptyRep != 0);
+ }
+ DBG_STMT(aStr.CheckInvariants())
+ size_t pos = DW_MIN(aPos, aStr.mLength);
+ size_t len = DW_MIN(aLen, aStr.mLength - pos);
+ if (len > 0) {
+ mRep = new_rep_reference(aStr.mRep);
+ mStart = aStr.mStart + pos;
+ mLength = len;
+ }
+ else /* if (len == 0) */ {
+ mRep = new_rep_reference(sEmptyRep);
+ mStart = 0;
+ mLength = 0;
+ }
+}
+
+
+DwString::DwString(const char* aBuf, size_t aLen)
+{
+ assert(aBuf != 0);
+ assert(aLen != (size_t)-1);
+ if (sEmptyRep == 0) {
+ sEmptyBuffer[0] = 0;
+ sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
+ assert(sEmptyRep != 0);
+ }
+ DBG_STMT(sEmptyRep->CheckInvariants())
+ // Set valid values, in case an exception is thrown
+ mRep = new_rep_reference(sEmptyRep);
+ mStart = 0;
+ mLength = 0;
+ _replace(0, mLength, aBuf, aLen);
+}
+
+
+DwString::DwString(FILE* aFile , size_t aLen)
+{
+ assert(aFile != 0);
+ assert(aLen != (size_t)-1);
+ if (sEmptyRep == 0) {
+ sEmptyBuffer[0] = 0;
+ sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
+ assert(sEmptyRep != 0);
+ }
+ DBG_STMT(sEmptyRep->CheckInvariants())
+ // Set valid values, in case an exception is thrown
+ mRep = new DwStringRep(aFile, aLen);
+ mStart = 0;
+ mLength = aLen;
+}
+
+
+DwString::DwString(const char* aCstr)
+{
+ if (sEmptyRep == 0) {
+ sEmptyBuffer[0] = 0;
+ sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
+ assert(sEmptyRep != 0);
+ }
+ DBG_STMT(sEmptyRep->CheckInvariants())
+ // Set valid values, in case an exception is thrown
+ mRep = new_rep_reference(sEmptyRep);
+ mStart = 0;
+ mLength = 0;
+ if ( aCstr ) {
+ size_t len = (aCstr) ? strlen(aCstr) : 0;
+ _replace(0, mLength, aCstr, len);
+ }
+}
+
+
+DwString::DwString(size_t aLen, char aChar)
+{
+ assert(aLen != (size_t)-1);
+ if (sEmptyRep == 0) {
+ sEmptyBuffer[0] = 0;
+ sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
+ assert(sEmptyRep != 0);
+ }
+ DBG_STMT(sEmptyRep->CheckInvariants())
+ // Set valid values, in case an exception is thrown
+ mRep = new_rep_reference(sEmptyRep);
+ mStart = 0;
+ mLength = 0;
+ _replace(0, mLength, aLen, aChar);
+}
+
+
+DwString::DwString(char* aBuf, size_t aSize, size_t aStart, size_t aLen)
+{
+ assert(aBuf != 0);
+ assert(aSize > 0);
+ assert(aLen < aSize);
+ assert(aStart < aSize - aLen);
+ if (sEmptyRep == 0) {
+ sEmptyBuffer[0] = 0;
+ sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
+ assert(sEmptyRep != 0);
+ }
+ DBG_STMT(sEmptyRep->CheckInvariants())
+ // Set valid values, in case an exception is thrown
+ mRep = new_rep_reference(sEmptyRep);
+ mStart = 0;
+ mLength = 0;
+ DwStringRep* rep = new DwStringRep(aBuf, aSize);
+ assert(rep != 0);
+ if (rep != 0) {
+ mRep = rep;
+ mStart = aStart;
+ mLength = aLen;
+ }
+ else /* if (rep == 0) */ {
+ delete [] aBuf;
+ }
+}
+
+
+DwString::~DwString()
+{
+ assert(mRep != 0);
+ delete_rep_safely(mRep);
+ DEV_STMT(mRep = 0)
+}
+
+
+size_t DwString::max_size() const
+{
+ return ((size_t)-1) - 1;
+}
+
+
+void DwString::resize(size_t aLen, char aChar)
+{
+ // making string shorter?
+ if (aLen < mLength) {
+ mLength = aLen;
+ if (mRep->mRefCount == 1) {
+ mRep->mBuffer[mStart + aLen] = 0;
+ }
+ }
+ // expanding string
+ else if (aLen > mLength) {
+ _replace(mLength, 0, aLen-mLength, aChar);
+ }
+}
+
+
+void DwString::resize(size_t aLen)
+{
+ resize(aLen, 0);
+}
+
+
+void DwString::reserve(size_t aSize)
+{
+ if (mRep->mRefCount == 1 && aSize < mRep->mSize && mRep != sEmptyRep) {
+ return;
+ }
+ size_t size = aSize + 1;
+ char* newBuf = mem_alloc(&size);
+ assert(newBuf != 0);
+ if (newBuf != 0) {
+ char* to = newBuf;
+ const char* from = mRep->mBuffer + mStart;
+ mem_copy(from, mLength, to);
+ to[mLength] = 0;
+ DwStringRep* rep= new DwStringRep(newBuf, size);
+ assert(rep != 0);
+ if (rep != 0) {
+ delete_rep_safely(mRep);
+ mRep = rep;
+ mStart = 0;
+ }
+ else {
+ mem_free(newBuf);
+ }
+ }
+}
+
+
+void DwString::clear()
+{
+ assign("");
+}
+
+
+DwString& DwString::append(const DwString& aStr)
+{
+ return append(aStr, 0, aStr.mLength);
+}
+
+
+DwString& DwString::append(const DwString& aStr, size_t aPos,
+ size_t aLen)
+{
+ assert(aPos <= aStr.mLength);
+ size_t pos = DW_MIN(aPos, aStr.mLength);
+ size_t len = DW_MIN(aLen, aStr.mLength - pos);
+ if (&aStr == this) {
+ DwString temp(aStr);
+ _replace(mLength, 0, &temp.mRep->mBuffer[temp.mStart+pos], len);
+ }
+ else {
+ _replace(mLength, 0, &aStr.mRep->mBuffer[aStr.mStart+pos], len);
+ }
+ return *this;
+}
+
+
+DwString& DwString::append(const char* aBuf, size_t aLen)
+{
+ assert(aBuf != 0);
+ if (aBuf != 0) {
+ _replace(mLength, 0, aBuf, aLen);
+ }
+ return *this;
+}
+
+
+DwString& DwString::append(const char* aCstr)
+{
+ assert(aCstr != 0);
+ size_t len = (aCstr) ? strlen(aCstr) : 0;
+ _replace(mLength, 0, aCstr, len);
+ return *this;
+}
+
+
+DwString& DwString::append(size_t aLen, char aChar)
+{
+ _replace(mLength, 0, aLen, aChar);
+ return *this;
+}
+
+
+DwString& DwString::assign(const DwString& aStr)
+{
+ if (this != &aStr) {
+ assign(aStr, 0, aStr.mLength);
+ }
+ return *this;
+}
+
+
+DwString& DwString::assign(const DwString& aStr, size_t aPos, size_t aLen)
+{
+ assert(aPos <= aStr.mLength);
+ size_t pos = DW_MIN(aPos, aStr.mLength);
+ size_t len = DW_MIN(aLen, aStr.mLength - pos);
+ if (mRep == aStr.mRep) {
+ mStart = aStr.mStart + pos;
+ mLength = len;
+ }
+ else {
+ delete_rep_safely(mRep);
+ mRep = new_rep_reference(aStr.mRep);
+ mStart = aStr.mStart + pos;
+ mLength = len;
+ }
+ return *this;
+}
+
+
+DwString& DwString::assign(const char* aBuf, size_t aLen)
+{
+ assert(aBuf != 0);
+ assert(aLen != (size_t)-1);
+ _replace(0, mLength, aBuf, aLen);
+ return *this;
+}
+
+
+DwString& DwString::assign(const char* aCstr)
+{
+ assert(aCstr != 0);
+ size_t len = (aCstr) ? strlen(aCstr) : 0;
+ _replace(0, mLength, aCstr, len);
+ return *this;
+}
+
+
+DwString& DwString::assign(size_t aLen, char aChar)
+{
+ assert(aLen != (size_t)-1);
+ _replace(0, mLength, aLen, aChar);
+ return *this;
+}
+
+
+DwString& DwString::insert(size_t aPos, const DwString& aStr)
+{
+ return insert(aPos, aStr, 0, aStr.mLength);
+}
+
+
+DwString& DwString::insert(size_t aPos1, const DwString& aStr,
+ size_t aPos2, size_t aLen2)
+{
+ assert(aPos1 <= mLength);
+ assert(aPos2 <= aStr.mLength);
+ size_t pos2 = DW_MIN(aPos2, aStr.mLength);
+ size_t len2 = DW_MIN(aLen2, aStr.mLength - pos2);
+ if (&aStr == this) {
+ DwString temp(aStr);
+ _replace(aPos1, 0, &temp.mRep->mBuffer[temp.mStart+pos2], len2);
+ }
+ else {
+ _replace(aPos1, 0, &aStr.mRep->mBuffer[aStr.mStart+pos2], len2);
+ }
+ return *this;
+}
+
+
+DwString& DwString::insert(size_t aPos, const char* aBuf, size_t aLen)
+{
+ assert(aBuf != 0);
+ _replace(aPos, 0, aBuf, aLen);
+ return *this;
+}
+
+
+DwString& DwString::insert(size_t aPos, const char* aCstr)
+{
+ assert(aCstr != 0);
+ size_t len = (aCstr) ? strlen(aCstr) : 0;
+ _replace(aPos, 0, aCstr, len);
+ return *this;
+}
+
+
+DwString& DwString::insert(size_t aPos, size_t aLen, char aChar)
+{
+ _replace(aPos, 0, aLen, aChar);
+ return *this;
+}
+
+
+DwString& DwString::erase(size_t aPos, size_t aLen)
+{
+ assert(aPos <= mLength);
+ size_t pos = DW_MIN(aPos, mLength);
+ size_t len = DW_MIN(aLen, mLength - pos);
+ _replace(pos, len, "", 0);
+ return *this;
+}
+
+
+DwString& DwString::replace(size_t aPos1, size_t aLen1, const DwString& aStr)
+{
+ return replace(aPos1, aLen1, aStr, 0, aStr.mLength);
+}
+
+
+DwString& DwString::replace(size_t aPos1, size_t aLen1, const DwString& aStr,
+ size_t aPos2, size_t aLen2)
+{
+ assert(aPos2 <= aStr.mLength);
+ size_t pos2 = DW_MIN(aPos2, aStr.mLength);
+ size_t len2 = DW_MIN(aLen2, aStr.mLength - pos2);
+ if (&aStr == this) {
+ DwString temp(aStr);
+ _replace(aPos1, aLen1, &temp.mRep->mBuffer[temp.mStart+pos2], len2);
+ }
+ else {
+ _replace(aPos1, aLen1, &aStr.mRep->mBuffer[aStr.mStart+pos2], len2);
+ }
+ return *this;
+}
+
+
+DwString& DwString::replace(size_t aPos1, size_t aLen1, const char* aBuf,
+ size_t aLen2)
+{
+ _replace(aPos1, aLen1, aBuf, aLen2);
+ return *this;
+}
+
+
+DwString& DwString::replace(size_t aPos1, size_t aLen1, const char* aCstr)
+{
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ _replace(aPos1, aLen1, aCstr, len2);
+ return *this;
+}
+
+
+DwString& DwString::replace(size_t aPos1, size_t aLen1, size_t aLen2,
+ char aChar)
+{
+ _replace(aPos1, aLen1, aLen2, aChar);
+ return *this;
+}
+
+
+size_t DwString::copy(char* aBuf, size_t aLen, size_t aPos) const
+{
+ assert(aPos <= mLength);
+ assert(aBuf != 0);
+ size_t pos = DW_MIN(aPos, mLength);
+ size_t len = DW_MIN(aLen, mLength - pos);
+ char* to = aBuf;
+ const char* from = mRep->mBuffer + mStart + pos;
+ mem_copy(from, len, to);
+ return len;
+}
+
+
+void DwString::swap(DwString& aStr)
+{
+ DwStringRep* rep = mRep;
+ mRep = aStr.mRep;
+ aStr.mRep = rep;
+ size_t n = mStart;
+ mStart = aStr.mStart;
+ aStr.mStart = n;
+ n = mLength;
+ mLength = aStr.mLength;
+ aStr.mLength = n;
+}
+
+
+size_t DwString::find(const DwString& aStr, size_t aPos) const
+{
+ return find(&aStr.mRep->mBuffer[aStr.mStart], aPos, aStr.mLength);
+}
+
+
+size_t DwString::find(const char* aBuf, size_t aPos, size_t aLen) const
+{
+ assert(aBuf != 0);
+ if (aBuf == 0) return (size_t)-1;
+ if (aLen > mLength) return (size_t)-1;
+ if (aPos > mLength-aLen) return (size_t)-1;
+ if (aLen == 0) return aPos;
+ const char* buf = mRep->mBuffer + mStart;
+ for (size_t i=aPos; i <= mLength-aLen; ++i) {
+ size_t k = i;
+ size_t j = 0;
+ while (j < aLen && aBuf[j] == buf[k]) {
+ ++j; ++k;
+ }
+ if (j == aLen) return i;
+ }
+ return (size_t)-1;
+}
+
+
+size_t DwString::find(const char* aCstr, size_t aPos) const
+{
+ assert(aCstr != 0);
+ if (aCstr == 0) return (size_t)-1;
+ size_t len = strlen(aCstr);
+ return find(aCstr, aPos, len);
+}
+
+
+size_t DwString::find(char aChar, size_t aPos) const
+{
+ if (aPos >= mLength) return (size_t)-1;
+ const char* buf = mRep->mBuffer + mStart;
+ for (size_t i=aPos; i < mLength; ++i) {
+ if (buf[i] == aChar) return i;
+ }
+ return (size_t)-1;
+}
+
+
+size_t DwString::rfind(const DwString& aStr, size_t aPos) const
+{
+ return rfind(&aStr.mRep->mBuffer[aStr.mStart], aPos, aStr.mLength);
+}
+
+
+size_t DwString::rfind(const char* aBuf, size_t aPos, size_t aLen) const
+{
+ assert(aBuf != 0);
+ if (aBuf == 0) return (size_t)-1;
+ if (aLen > mLength) return (size_t)-1;
+ size_t pos = DW_MIN(aPos, mLength - aLen);
+ if (aLen == 0) return pos;
+ const char* buf = mRep->mBuffer + mStart;
+ for (size_t i=0; i <= pos; ++i) {
+ size_t k = pos - i;
+ size_t j = 0;
+ while (j < aLen && aBuf[j] == buf[k]) {
+ ++j; ++k;
+ }
+ if (j == aLen) return pos - i;
+ }
+ return (size_t)-1;
+}
+
+
+size_t DwString::rfind(const char* aCstr, size_t aPos) const
+{
+ assert(aCstr != 0);
+ size_t len = (aCstr) ? strlen(aCstr) : 0;
+ return rfind(aCstr, aPos, len);
+}
+
+
+size_t DwString::rfind(char aChar, size_t aPos) const
+{
+ size_t pos = DW_MIN(aPos, mLength - 1);
+ const char* buf = mRep->mBuffer + mStart;
+ for (size_t i=0; i <= pos; ++i) {
+ size_t k = pos - i;
+ if (buf[k] == aChar) return k;
+ }
+ return (size_t)-1;
+}
+
+
+size_t DwString::find_first_of(const DwString& aStr, size_t aPos) const
+{
+ return find_first_of(&aStr.mRep->mBuffer[aStr.mStart], aPos, aStr.mLength);
+}
+
+
+size_t DwString::find_first_of(const char* aBuf, size_t aPos, size_t aLen) const
+{
+ assert(aBuf != 0);
+ if (aBuf == 0) return (size_t)-1;
+ if (aPos >= mLength) return (size_t)-1;
+ if (aLen == 0) return aPos;
+ char table[256];
+ memset(table, 0, sizeof(table));
+ for (size_t j=0; j < aLen; ++j) {
+ table[aBuf[j]&0xff] = 1;
+ }
+ const char* buf = mRep->mBuffer + mStart;
+ for (size_t i=aPos; i < mLength; ++i) {
+ if (table[buf[i]&0xff]) return i;
+ }
+ return (size_t)-1;
+}
+
+
+size_t DwString::find_first_of(const char* aCstr, size_t aPos) const
+{
+ assert(aCstr != 0);
+ if (aCstr == 0) return (size_t)-1;
+ size_t len = strlen(aCstr);
+ return find_first_of(aCstr, aPos, len);
+}
+
+
+size_t DwString::find_last_of(const DwString& aStr, size_t aPos) const
+{
+ return find_last_of(&aStr.mRep->mBuffer[aStr.mStart], aPos, aStr.mLength);
+}
+
+
+size_t DwString::find_last_of(const char* aBuf, size_t aPos, size_t aLen) const
+{
+ assert(aBuf != 0);
+ if (aBuf == 0) return (size_t)-1;
+ if (mLength == 0) return (size_t)-1;
+ size_t pos = DW_MIN(aPos, mLength - 1);
+ if (aLen == 0) return pos;
+ char table[256];
+ memset(table, 0, sizeof(table));
+ for (size_t j=0; j < aLen; ++j) {
+ table[aBuf[j]&0xff] = 1;
+ }
+ const char* buf = mRep->mBuffer + mStart;
+ for (size_t k=0; k <= pos; ++k) {
+ size_t i = pos - k;
+ if (table[buf[i]&0xff]) return i;
+ }
+ return (size_t)-1;
+}
+
+
+size_t DwString::find_last_of(const char* aCstr, size_t aPos) const
+{
+ assert(aCstr != 0);
+ if (aCstr == 0) return (size_t)-1;
+ size_t len = strlen(aCstr);
+ return find_last_of(aCstr, aPos, len);
+}
+
+
+size_t DwString::find_first_not_of(const DwString& aStr, size_t aPos) const
+{
+ return find_first_not_of(&aStr.mRep->mBuffer[aStr.mStart], aPos, aStr.mLength);
+}
+
+
+size_t DwString::find_first_not_of(const char* aBuf, size_t aPos, size_t aLen) const
+{
+ assert(aBuf != 0);
+ if (aBuf == 0) return (size_t)-1;
+ if (aPos >= mLength) return (size_t)-1;
+ if (aLen == 0) return (size_t)-1;
+ char table[256];
+ memset(table, 1, sizeof(table));
+ for (size_t j=0; j < aLen; ++j) {
+ table[aBuf[j]&0xff] = 0;
+ }
+ const char* buf = mRep->mBuffer + mStart;
+ for (size_t i=aPos; i < mLength; ++i) {
+ if (table[buf[i]&0xff]) return i;
+ }
+ return (size_t)-1;
+}
+
+
+size_t DwString::find_first_not_of(const char* aCstr, size_t aPos) const
+{
+ assert(aCstr != 0);
+ if (aCstr == 0) return (size_t)-1;
+ size_t len = strlen(aCstr);
+ return find_first_not_of(aCstr, aPos, len);
+}
+
+
+size_t DwString::find_last_not_of(const DwString& aStr, size_t aPos) const
+{
+ return find_last_not_of(&aStr.mRep->mBuffer[aStr.mStart], aPos, aStr.mLength);
+}
+
+
+size_t DwString::find_last_not_of(const char* aBuf, size_t aPos, size_t aLen) const
+{
+ assert(aBuf != 0);
+ if (aBuf == 0) return (size_t)-1;
+ if (mLength == 0) return (size_t)-1;
+ size_t pos = DW_MIN(aPos, mLength - 1);
+ if (aLen == 0) return (size_t)-1;
+ char table[256];
+ memset(table, 1, sizeof(table));
+ for (size_t j=0; j < aLen; ++j) {
+ table[aBuf[j]&0xff] = 0;
+ }
+ const char* buf = mRep->mBuffer + mStart;
+ for (size_t k=0; k <= pos; ++k) {
+ size_t i = pos - k;
+ if (table[buf[i]&0xff]) return i;
+ }
+ return (size_t)-1;
+}
+
+
+size_t DwString::find_last_not_of(const char* aCstr, size_t aPos) const
+{
+ assert(aCstr != 0);
+ if (aCstr == 0) return (size_t)-1;
+ size_t len = strlen(aCstr);
+ return find_last_not_of(aCstr, aPos, len);
+}
+
+
+DwString DwString::substr(size_t aPos, size_t aLen) const
+{
+ assert(aPos <= mLength);
+ size_t pos = DW_MIN(aPos, mLength);
+ size_t len = DW_MIN(aLen, mLength - pos);
+ return DwString(*this, pos, len);
+}
+
+
+int DwString::compare(const DwString& aStr) const
+{
+ return compare(0, mLength, aStr, 0, aStr.mLength);
+}
+
+
+int DwString::compare(size_t aPos1, size_t aLen1, const DwString& aStr) const
+{
+ return compare(aPos1, aLen1, aStr, 0, aStr.mLength);
+}
+
+
+int DwString::compare(size_t aPos1, size_t aLen1, const DwString& aStr,
+ size_t aPos2, size_t aLen2) const
+{
+ assert(aPos1 <= mLength);
+ assert(aPos2 <= aStr.mLength);
+ size_t pos1 = DW_MIN(aPos1, mLength);
+ const char* buf1 = mRep->mBuffer + mStart + pos1;
+ size_t len1 = DW_MIN(aLen1, mLength - pos1);
+ size_t pos2 = DW_MIN(aPos2, aStr.mLength);
+ const char* buf2 = aStr.mRep->mBuffer + aStr.mStart + pos2;
+ size_t len2 = DW_MIN(aLen2, aStr.mLength - pos2);
+ size_t len = DW_MIN(len1, len2);
+ int r = strncmp(buf1, buf2, len);
+ if (r == 0) {
+ if (len1 < len2)
+ r = -1;
+ else if (len1 > len2) {
+ r = 1;
+ }
+ }
+ return r;
+}
+
+
+int DwString::compare(const char* aCstr) const
+{
+ assert(aCstr != 0);
+ size_t len = (aCstr) ? strlen(aCstr) : 0;
+ return compare(0, mLength, aCstr, len);
+}
+
+
+int DwString::compare(size_t aPos1, size_t aLen1, const char* aBuf,
+ size_t aLen2) const
+{
+ assert(aBuf != 0);
+ assert(aPos1 <= mLength);
+ if (aBuf == 0) {
+ return (aLen1 > 0) ? 1 : 0;
+ }
+ size_t pos1 = DW_MIN(aPos1, mLength);
+ const char* buf1 = mRep->mBuffer + mStart + pos1;
+ size_t len1 = DW_MIN(aLen1, mLength - pos1);
+ const char* buf2 = aBuf;
+ size_t len2 = aLen2;
+ size_t len = DW_MIN(len1, len2);
+ int r = strncmp(buf1, buf2, len);
+ if (r == 0) {
+ if (len1 < len2)
+ r = -1;
+ else if (len1 > len2) {
+ r = 1;
+ }
+ }
+ return r;
+}
+
+
+const char* DwString::ClassName() const
+{
+ return "DwString";
+}
+
+
+int DwString::ObjectId() const
+{
+ return (int) (long) this;
+}
+
+
+void DwString::ConvertToLowerCase()
+{
+ if (mRep->mRefCount > 1) {
+ _copy();
+ }
+ char* buf = mRep->mBuffer + mStart;
+ for (size_t i=0; i < mLength; ++i) {
+ buf[i] = (char) dw_asciitolower(buf[i]);
+ }
+}
+
+
+void DwString::ConvertToUpperCase()
+{
+ if (mRep->mRefCount > 1) {
+ _copy();
+ }
+ char* buf = mRep->mBuffer + mStart;
+ for (size_t i=0; i < mLength; ++i) {
+ buf[i] = (char) dw_asciitoupper(buf[i]);
+ }
+}
+
+
+void DwString::Trim()
+{
+ const char* buf = mRep->mBuffer + mStart;
+ size_t i = 0;
+ while (mLength > 0) {
+ if (isspace(buf[i])) {
+ ++mStart;
+ --mLength;
+ ++i;
+ }
+ else {
+ break;
+ }
+ }
+ buf = mRep->mBuffer + mStart;
+ i = mLength - 1;
+ while (mLength > 0) {
+ if (isspace(buf[i])) {
+ --mLength;
+ --i;
+ }
+ else {
+ break;
+ }
+ }
+ if (mLength == 0) {
+ assign("");
+ }
+}
+
+
+void DwString::WriteTo(std::ostream& aStrm) const
+{
+ const char* buf = mRep->mBuffer + mStart;
+ for (size_t i=0; i < mLength; ++i) {
+ aStrm << buf[i];
+ }
+}
+
+
+void DwString::TakeBuffer(char* aBuf, size_t aSize, size_t aStart, size_t aLen)
+{
+ assert(aBuf != 0);
+ DwStringRep* rep = new DwStringRep(aBuf, aSize);
+ assert(rep != 0);
+ if (rep) {
+ delete_rep_safely(mRep);
+ mRep = rep;
+ mStart = aStart;
+ mLength = aLen;
+ }
+}
+
+
+void DwString::ReleaseBuffer(char** aBuf, size_t* aSize, size_t* aStart,
+ size_t* aLen)
+{
+ assert(aBuf != 0);
+ assert(aSize != 0);
+ assert(aStart != 0);
+ assert(aLen != 0);
+ if (mRep->mRefCount == 1) {
+ *aBuf = mRep->mBuffer;
+ *aSize = mRep->mSize;
+ }
+ else {
+ size_t size = mRep->mSize;
+ char* buf = new char [size];
+ assert(buf != 0);
+ if (buf != 0) {
+ mem_copy(mRep->mBuffer, size, buf);
+ *aBuf = buf;
+ *aSize = size;
+ }
+ else {
+ // If not throwing an exception, recover as best we can
+ *aBuf = 0;
+ *aSize = 0;
+ *aStart = mStart = 0;
+ *aLen = mLength = 0;
+ return;
+ }
+ }
+ *aStart = mStart;
+ *aLen = mLength;
+ mRep = new_rep_reference(sEmptyRep);
+ mStart = 0;
+ mLength = 0;
+}
+
+
+void DwString::CopyTo(DwString* aStr) const
+{
+ assert(aStr != 0);
+ if (!aStr) return;
+ size_t len = mLength;
+ size_t size = len + 1;
+ char* buf = mem_alloc(&size);
+ assert(buf != 0);
+ if (buf != 0) {
+ mem_copy(mRep->mBuffer+mStart, len, buf);
+ buf[len] = 0;
+ DwStringRep* rep = new DwStringRep(buf, size);
+ assert(rep != 0);
+ if (rep != 0) {
+ aStr->mRep = rep;
+ delete_rep_safely(aStr->mRep);
+ aStr->mStart = 0;
+ aStr->mLength = len;
+ }
+ }
+}
+
+
+void DwString::_copy()
+{
+ if (mRep->mRefCount > 1) {
+ size_t size = mLength + 1;
+ char* newBuf = mem_alloc(&size);
+ assert(newBuf != 0);
+ if (newBuf != 0) {
+ char* to = newBuf;
+ const char* from = mRep->mBuffer + mStart;
+ mem_copy(from, mLength, to);
+ to[mLength] = 0;
+ DwStringRep* rep = new DwStringRep(newBuf, size);
+ assert(rep != 0);
+ if (rep != 0) {
+ delete_rep_safely(mRep);
+ mRep = rep;
+ mStart = 0;
+ }
+ else /* if (rep == 0) */ {
+ mem_free(newBuf);
+ mLength = 0;
+ }
+ }
+ else /* if (newBuf == 0) */ {
+ mLength = 0;
+ }
+ }
+}
+
+
+void DwString::_replace(size_t aPos1, size_t aLen1, const char* aBuf, size_t aLen2)
+{
+ assert(aPos1 <= mLength);
+ assert(aBuf != 0);
+ size_t pos1 = DW_MIN(aPos1, mLength);
+ size_t len1 = DW_MIN(aLen1, mLength - pos1);
+ assert(mStart + mLength - len1 < ((size_t)-1) - aLen2);
+ size_t len2 = DW_MIN(aLen2, ((size_t)-1) - (mStart + mLength - len1));
+ size_t i;
+ char* to;
+ const char* from;
+ size_t newLen = (mLength - len1) + len2;
+ // Is new string empty?
+ if (newLen == 0 || aBuf == 0) {
+ if (mRep != sEmptyRep) {
+ delete_rep_safely(mRep);
+ mRep = new_rep_reference(sEmptyRep);
+ mStart = 0;
+ mLength = 0;
+ }
+ }
+ // Is buffer shared? Is buffer too small?
+ else if (mRep->mRefCount > 1 || newLen >= mRep->mSize) {
+ size_t size = newLen + 1;
+ char* newBuf = mem_alloc(&size);
+ assert(newBuf != 0);
+ if (newBuf != 0) {
+ to = newBuf;
+ memcpy(to, mRep->mBuffer + mStart, pos1);
+ to += pos1;
+ memcpy(to, aBuf, len2);
+ to += len2;
+ memcpy(to, mRep->mBuffer + mStart + pos1 + len1, mLength - pos1 - len1);
+ to += mLength - pos1 - len1;
+ *to = 0;
+ DwStringRep* rep = new DwStringRep(newBuf, size);
+ assert(rep != 0);
+ if (rep != 0) {
+ delete_rep_safely(mRep);
+ mRep = rep;
+ mStart = 0;
+ mLength = newLen;
+ }
+ }
+ }
+ // Is the replacement smaller than the replaced?
+ else if (len2 < len1) {
+ to = mRep->mBuffer + mStart + pos1;
+ from = aBuf;
+ for (i=0; i < len2; ++i) *to++ = *from++;
+ from = mRep->mBuffer + mStart + pos1 + len1;
+ for (i=0; i < mLength - pos1 - len1; ++i) *to++ = *from++;
+ *to = 0;
+ mLength = newLen;
+ }
+ // Is there enough room at end of buffer?
+ else if (mStart + newLen < mRep->mSize) {
+ to = mRep->mBuffer + mStart + newLen;
+ from = mRep->mBuffer + mStart + mLength - 1;
+ *to-- = 0;
+ for (i=0; i < mLength-pos1-len1; ++i) *to-- = *from--;
+ from = aBuf + (len2 - 1);
+ for (i=0; i < len2; ++i) *to-- = *from--;
+ mLength = newLen;
+ }
+ // Is there enough room at beginning of buffer?
+ else if (len2 - len1 <= mStart) {
+ to = mRep->mBuffer + mStart - (len2 - len1);
+ from = mRep->mBuffer + mStart;
+ for (i=0; i < pos1; ++i) *to++ = *from++;
+ from = aBuf;
+ for (i=0; i < len2; ++i) *to++ = *from++;
+ mStart -= len2 - len1;
+ mLength = newLen;
+ }
+ // There's enough room, but we must move characters.
+ else {
+ to = mRep->mBuffer + newLen;
+ from = mRep->mBuffer + mStart + mLength - 1;
+ *to-- = 0;
+ for (i=0; i < mLength-pos1-len1; ++i) *to-- = *from--;
+ to = mRep->mBuffer;
+ from = mRep->mBuffer + mStart;
+ for (i=0; i < pos1; ++i) *to++ = *from++;
+ from = aBuf;
+ for (i=0; i < len2; ++i) *to++ = *from++;
+ mStart = 0;
+ mLength = newLen;
+ }
+}
+
+
+void DwString::_replace(size_t aPos1, size_t aLen1, size_t aLen2, char aChar)
+{
+ assert(aPos1 <= mLength);
+ size_t pos1 = DW_MIN(aPos1, mLength);
+ size_t len1 = DW_MIN(aLen1, mLength - pos1);
+ assert(mStart + mLength - len1 < ((size_t)-1) - aLen2);
+ size_t len2 = DW_MIN(aLen2, ((size_t)-1) - (mStart + mLength - len1));
+ size_t i;
+ char* to;
+ const char* from;
+ size_t newLen = mLength - len1 + len2;
+ // Is new string empty?
+ if (newLen == 0) {
+ if (mRep != sEmptyRep) {
+ delete_rep_safely(mRep);
+ mRep = new_rep_reference(sEmptyRep);
+ mStart = 0;
+ mLength = 0;
+ }
+ }
+ // Is buffer shared? Is buffer too small?
+ else if (mRep->mRefCount > 1 || newLen >= mRep->mSize) {
+ size_t size = newLen + 1;
+ char* newBuf = mem_alloc(&size);
+ assert(newBuf != 0);
+ if (newBuf != 0) {
+ to = newBuf;
+ from = mRep->mBuffer + mStart;
+ for (i=0; i < pos1; ++i) *to++ = *from++;
+ for (i=0; i < len2; ++i) *to++ = aChar;
+ from = mRep->mBuffer + mStart + pos1 + len1;
+ for (i=0; i < mLength - pos1 - len1; ++i) *to++ = *from++;
+ *to = 0;
+ DwStringRep* rep = new DwStringRep(newBuf, size);
+ assert(rep != 0);
+ if (rep != 0) {
+ delete_rep_safely(mRep);
+ mRep = rep;
+ mStart = 0;
+ mLength = newLen;
+ }
+ }
+ }
+ // Is the replacement smaller than the replaced?
+ else if (len2 < len1) {
+ to = mRep->mBuffer + mStart + pos1;
+ for (i=0; i < len2; ++i) *to++ = aChar;
+ from = mRep->mBuffer + mStart + pos1 + len1;
+ for (i=0; i < mLength - pos1 - len1; ++i) *to++ = *from++;
+ *to = 0;
+ mLength = newLen;
+ }
+ // Is there enough room at end of buffer?
+ else if (mStart + newLen < mRep->mSize) {
+ to = mRep->mBuffer + mStart + newLen;
+ from = mRep->mBuffer + mStart + mLength - 1;
+ *to-- = 0;
+ for (i=0; i < mLength-pos1-len1; ++i) *to-- = *from--;
+ for (i=0; i < len2; ++i) *to-- = aChar;
+ mLength = newLen;
+ }
+ // Is there enough room at beginning of buffer?
+ else if (len2 - len1 <= mStart) {
+ to = mRep->mBuffer + mStart - (len2 - len1);
+ from = mRep->mBuffer + mStart;
+ for (i=0; i < pos1; ++i) *to++ = *from++;
+ for (i=0; i < len2; ++i) *to++ = aChar;
+ mStart -= len2 - len1;
+ mLength = newLen;
+ }
+ // There's enough room, but we must move characters.
+ else {
+ to = mRep->mBuffer + newLen;
+ from = mRep->mBuffer + mStart + mLength - 1;
+ *to-- = 0;
+ for (i=0; i < mLength-pos1-len1; ++i) *to-- = *from--;
+ to = mRep->mBuffer;
+ from = mRep->mBuffer + mStart;
+ for (i=0; i < pos1; ++i) *to++ = *from++;
+ for (i=0; i < len2; ++i) *to++ = aChar;
+ mStart = 0;
+ mLength = newLen;
+ }
+}
+
+
+#if defined (DW_DEBUG_VERSION)
+void DwString::PrintDebugInfo(std::ostream& aStrm) const
+{
+ aStrm <<
+ "----------------- Debug info for DwString class ----------------\n";
+ aStrm << "Id: " << ClassName() << ", " << ObjectId() << "\n";
+ aStrm << "Rep: " << (void*) mRep << "\n";
+ aStrm << "Buffer: " << (void*) mRep->mBuffer << "\n";
+ aStrm << "Buffer size: " << mRep->mSize << "\n";
+ aStrm << "Start: " << mStart << "\n";
+ aStrm << "Length: " << mLength << "\n";
+ aStrm << "Contents: ";
+ for (size_t i=0; i < mLength && i < 64; ++i) {
+ aStrm << mRep->mBuffer[mStart+i];
+ }
+ aStrm << std::endl;
+}
+#else
+void DwString::PrintDebugInfo(std::ostream& ) const {}
+#endif // defined (DW_DEBUG_VERSION)
+
+
+void DwString::CheckInvariants() const
+{
+#if defined (DW_DEBUG_VERSION)
+ assert(mRep != 0);
+ mRep->CheckInvariants();
+#endif // defined (DW_DEBUG_VERSION)
+}
+
+
+DwString operator + (const DwString& aStr1, const DwString& aStr2)
+{
+ DwString str(aStr1);
+ str.append(aStr2);
+ return str;
+}
+
+
+DwString operator + (const char* aCstr, const DwString& aStr2)
+{
+ DwString str(aCstr);
+ str.append(aStr2);
+ return str;
+}
+
+
+DwString operator + (char aChar, const DwString& aStr2)
+{
+ DwString str(1, aChar);
+ str.append(aStr2);
+ return str;
+}
+
+
+DwString operator + (const DwString& aStr1, const char* aCstr)
+{
+ DwString str(aStr1);
+ str.append(aCstr);
+ return str;
+}
+
+
+DwString operator + (const DwString& aStr1, char aChar)
+{
+ DwString str(aStr1);
+ str.append(1, aChar);
+ return str;
+}
+
+
+DwBool operator == (const DwString& aStr1, const DwString& aStr2)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r == 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator == (const DwString& aStr1, const char* aCstr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r == 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator == (const char* aCstr, const DwString& aStr2)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r == 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator != (const DwString& aStr1, const DwString& aStr2)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r == 0) ? 0 : 1;
+ return r;
+}
+
+
+DwBool operator != (const DwString& aStr1, const char* aCstr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r == 0) ? 0 : 1;
+ return r;
+}
+
+
+DwBool operator != (const char* aCstr, const DwString& aStr2)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r == 0) ? 0 : 1;
+ return r;
+}
+
+
+DwBool operator < (const DwString& aStr1, const DwString& aStr2)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r < 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator < (const DwString& aStr1, const char* aCstr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r < 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator < (const char* aCstr, const DwString& aStr2)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r < 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator > (const DwString& aStr1, const DwString& aStr2)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r > 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator > (const DwString& aStr1, const char* aCstr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r > 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator > (const char* aCstr, const DwString& aStr2)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r > 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator <= (const DwString& aStr1, const DwString& aStr2)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r <= 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator <= (const DwString& aStr1, const char* aCstr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r <= 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator <= (const char* aCstr, const DwString& aStr2)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r <= 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator >= (const DwString& aStr1, const DwString& aStr2)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r >= 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator >= (const DwString& aStr1, const char* aCstr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r >= 0) ? 1 : 0;
+ return r;
+}
+
+
+DwBool operator >= (const char* aCstr, const DwString& aStr2)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ int r = dw_strcmp(s1, len1, s2, len2);
+ r = (r >= 0) ? 1 : 0;
+ return r;
+}
+
+
+std::ostream& operator << (std::ostream& aOstrm, const DwString& aStr)
+{
+ const char* buf = aStr.data();
+ for (size_t i=0; i < aStr.length(); ++i) {
+ aOstrm << buf[i];
+ }
+ return aOstrm;
+}
+
+
+std::istream& getline(std::istream& aIstrm, DwString& aStr, char aDelim)
+{
+ aStr.clear();
+ char ch;
+ while (aIstrm.get(ch)) {
+ if (ch == aDelim) break;
+ if (aStr.length() < aStr.max_size()) {
+ aStr.append(1, ch);
+ }
+ }
+ return aIstrm;
+}
+
+
+std::istream& getline(std::istream& aIstrm, DwString& aStr)
+{
+ return getline(aIstrm, aStr, '\n');
+}
+
+#endif // !defined(DW_USE_ANSI_STRING)
+
+
+int DwStrcasecmp(const DwString& aStr1, const DwString& aStr2)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ return dw_strasciicasecmp(s1, len1, s2, len2);
+}
+
+
+int DwStrcasecmp(const DwString& aStr, const char* aCstr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr.data();
+ size_t len1 = aStr.length();
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ return dw_strasciicasecmp(s1, len1, s2, len2);
+}
+
+
+int DwStrcasecmp(const char* aCstr, const DwString& aStr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ const char* s2 = aStr.data();
+ size_t len2 = aStr.length();
+ return dw_strasciicasecmp(s1, len1, s2, len2);
+}
+
+
+int DwStrncasecmp(const DwString& aStr1, const DwString& aStr2, size_t n)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ len1 = DW_MIN(len1, n);
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ len2 = DW_MIN(len2, n);
+ return dw_strasciicasecmp(s1, len1, s2, len2);
+}
+
+
+int DwStrncasecmp(const DwString& aStr, const char* aCstr, size_t n)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr.data();
+ size_t len1 = aStr.length();
+ len1 = DW_MIN(len1, n);
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ len2 = DW_MIN(len2, n);
+ return dw_strasciicasecmp(s1, len1, s2, len2);
+}
+
+
+int DwStrncasecmp(const char* aCstr, const DwString& aStr, size_t n)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ len1 = DW_MIN(len1, n);
+ const char* s2 = aStr.data();
+ size_t len2 = aStr.length();
+ len2 = DW_MIN(len2, n);
+ return dw_strasciicasecmp(s1, len1, s2, len2);
+}
+
+
+int DwStrcmp(const DwString& aStr1, const DwString& aStr2)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ return dw_strcmp(s1, len1, s2, len2);
+}
+
+
+int DwStrcmp(const DwString& aStr, const char* aCstr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr.data();
+ size_t len1 = aStr.length();
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ return dw_strcmp(s1, len1, s2, len2);
+}
+
+
+int DwStrcmp(const char* aCstr, const DwString& aStr)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ const char* s2 = aStr.data();
+ size_t len2 = aStr.length();
+ return dw_strcmp(s1, len1, s2, len2);
+}
+
+
+int DwStrncmp(const DwString& aStr1, const DwString& aStr2, size_t n)
+{
+ const char* s1 = aStr1.data();
+ size_t len1 = aStr1.length();
+ len1 = DW_MIN(len1, n);
+ const char* s2 = aStr2.data();
+ size_t len2 = aStr2.length();
+ len2 = DW_MIN(len2, n);
+ return dw_strcmp(s1, len1, s2, len2);
+}
+
+
+int DwStrncmp(const DwString& aStr, const char* aCstr, size_t n)
+{
+ assert(aCstr != 0);
+ const char* s1 = aStr.data();
+ size_t len1 = aStr.length();
+ len1 = DW_MIN(len1, n);
+ const char* s2 = aCstr;
+ size_t len2 = (aCstr) ? strlen(aCstr) : 0;
+ len2 = DW_MIN(len2, n);
+ return dw_strcmp(s1, len1, s2, len2);
+}
+
+
+int DwStrncmp(const char* aCstr, const DwString& aStr, size_t n)
+{
+ assert(aCstr != 0);
+ const char* s1 = aCstr;
+ size_t len1 = (aCstr) ? strlen(aCstr) : 0;
+ len1 = DW_MIN(len1, n);
+ const char* s2 = aStr.data();
+ size_t len2 = aStr.length();
+ len2 = DW_MIN(len2, n);
+ return dw_strcmp(s1, len1, s2, len2);
+}
+
+
+void DwStrcpy(DwString& aStrDest, const DwString& aStrSrc)
+{
+ aStrDest.assign(aStrSrc);
+}
+
+
+void DwStrcpy(DwString& aStrDest, const char* aCstrSrc)
+{
+ aStrDest.assign(aCstrSrc);
+}
+
+
+void DwStrcpy(char* aCstrDest, const DwString& aStrSrc)
+{
+ assert(aCstrDest != 0);
+ const char* buf = aStrSrc.data();
+ size_t len = aStrSrc.length();
+ mem_copy(buf, len, aCstrDest);
+ aCstrDest[len] = 0;
+}
+
+
+void DwStrncpy(DwString& aStrDest, const DwString& aStrSrc, size_t n)
+{
+ aStrDest.assign(aStrSrc, 0, n);
+}
+
+
+void DwStrncpy(DwString& aStrDest, const char* aCstrSrc, size_t n)
+{
+ aStrDest.assign(aCstrSrc, 0, n);
+}
+
+
+void DwStrncpy(char* aCstrDest, const DwString& aStrSrc, size_t n)
+{
+ assert(aCstrDest != 0);
+ const char* buf = aStrSrc.data();
+ size_t len = aStrSrc.length();
+ len = DW_MIN(len, n);
+ mem_copy(buf, len, aCstrDest);
+ for (size_t i=len; i < n; ++i) {
+ aCstrDest[i] = 0;
+ }
+}
+
+
+char* DwStrdup(const DwString& aStr)
+{
+ size_t len = aStr.length();
+ char* buf = new char[len+1];
+ assert(buf != 0);
+ if (buf != 0) {
+ DwStrncpy(buf, aStr, len);
+ buf[len] = 0;
+ }
+ return buf;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-12 06:37:16 +0000