summaryrefslogtreecommitdiff
path: root/core/fxcrt/fx_basic_wstring.cpp
diff options
context:
space:
mode:
authorDan Sinclair <dsinclair@chromium.org>2016-03-14 13:35:12 -0400
committerDan Sinclair <dsinclair@chromium.org>2016-03-14 13:35:12 -0400
commit764ec513eecbebd12781bcc96ce81ed5e736ee92 (patch)
tree12763fde4be1f10ea1183d92185917b2b587e00b /core/fxcrt/fx_basic_wstring.cpp
parent97da97662417085774f75c26e535c6fbe70266ae (diff)
downloadpdfium-764ec513eecbebd12781bcc96ce81ed5e736ee92.tar.xz
Move core/src/ up to core/.
This CL moves the core/src/ files up to core/ and fixes up the include guards, includes and build files. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1800523005 .
Diffstat (limited to 'core/fxcrt/fx_basic_wstring.cpp')
-rw-r--r--core/fxcrt/fx_basic_wstring.cpp1050
1 files changed, 1050 insertions, 0 deletions
diff --git a/core/fxcrt/fx_basic_wstring.cpp b/core/fxcrt/fx_basic_wstring.cpp
new file mode 100644
index 0000000000..95b761bd09
--- /dev/null
+++ b/core/fxcrt/fx_basic_wstring.cpp
@@ -0,0 +1,1050 @@
+// 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 <stddef.h>
+
+#include <algorithm>
+#include <cctype>
+
+#include "core/include/fxcrt/fx_basic.h"
+#include "core/include/fxcrt/fx_ext.h"
+#include "third_party/base/numerics/safe_math.h"
+
+namespace {
+
+#ifndef NDEBUG
+bool IsValidCodePage(FX_WORD codepage) {
+ switch (codepage) {
+ case 0:
+ case 932:
+ case 936:
+ case 949:
+ case 950:
+ return true;
+
+ default:
+ return false;
+ }
+}
+#endif
+
+} // namespace
+
+// static
+CFX_WideString::StringData* CFX_WideString::StringData::Create(int nLen) {
+ // TODO(palmer): |nLen| should really be declared as |size_t|, or
+ // at least unsigned.
+ if (nLen == 0 || nLen < 0) {
+ return NULL;
+ }
+
+ // Fixed portion of header plus a NUL wide char not in m_nAllocLength.
+ int overhead = offsetof(StringData, m_String) + sizeof(FX_WCHAR);
+ pdfium::base::CheckedNumeric<int> iSize = nLen;
+ iSize *= sizeof(FX_WCHAR);
+ iSize += overhead;
+
+ // Now round to an 8-byte boundary. We'd expect that this is the minimum
+ // granularity of any of the underlying allocators, so there may be cases
+ // where we can save a re-alloc when adding a few characters to a string
+ // by using this otherwise wasted space.
+ iSize += 7;
+ int totalSize = iSize.ValueOrDie() & ~7;
+ int usableLen = (totalSize - overhead) / sizeof(FX_WCHAR);
+ FXSYS_assert(usableLen >= nLen);
+
+ void* pData = FX_Alloc(uint8_t, totalSize);
+ return new (pData) StringData(nLen, usableLen);
+}
+CFX_WideString::~CFX_WideString() {
+ if (m_pData) {
+ m_pData->Release();
+ }
+}
+CFX_WideString::CFX_WideString(const CFX_WideString& stringSrc) {
+ if (!stringSrc.m_pData) {
+ m_pData = NULL;
+ return;
+ }
+ if (stringSrc.m_pData->m_nRefs >= 0) {
+ m_pData = stringSrc.m_pData;
+ m_pData->Retain();
+ } else {
+ m_pData = NULL;
+ *this = stringSrc;
+ }
+}
+CFX_WideString::CFX_WideString(const FX_WCHAR* lpsz, FX_STRSIZE nLen) {
+ if (nLen < 0) {
+ nLen = lpsz ? FXSYS_wcslen(lpsz) : 0;
+ }
+ if (nLen) {
+ m_pData = StringData::Create(nLen);
+ if (m_pData) {
+ FXSYS_memcpy(m_pData->m_String, lpsz, nLen * sizeof(FX_WCHAR));
+ }
+ } else {
+ m_pData = NULL;
+ }
+}
+CFX_WideString::CFX_WideString(FX_WCHAR ch) {
+ m_pData = StringData::Create(1);
+ if (m_pData) {
+ m_pData->m_String[0] = ch;
+ }
+}
+CFX_WideString::CFX_WideString(const CFX_WideStringC& str) {
+ if (str.IsEmpty()) {
+ m_pData = NULL;
+ return;
+ }
+ m_pData = StringData::Create(str.GetLength());
+ if (m_pData) {
+ FXSYS_memcpy(m_pData->m_String, str.GetPtr(),
+ str.GetLength() * sizeof(FX_WCHAR));
+ }
+}
+CFX_WideString::CFX_WideString(const CFX_WideStringC& str1,
+ const CFX_WideStringC& str2) {
+ m_pData = NULL;
+ int nNewLen = str1.GetLength() + str2.GetLength();
+ if (nNewLen == 0) {
+ return;
+ }
+ m_pData = StringData::Create(nNewLen);
+ if (m_pData) {
+ FXSYS_memcpy(m_pData->m_String, str1.GetPtr(),
+ str1.GetLength() * sizeof(FX_WCHAR));
+ FXSYS_memcpy(m_pData->m_String + str1.GetLength(), str2.GetPtr(),
+ str2.GetLength() * sizeof(FX_WCHAR));
+ }
+}
+void CFX_WideString::ReleaseBuffer(FX_STRSIZE nNewLength) {
+ if (!m_pData) {
+ return;
+ }
+ CopyBeforeWrite();
+ if (nNewLength == -1) {
+ nNewLength = m_pData ? FXSYS_wcslen(m_pData->m_String) : 0;
+ }
+ if (nNewLength == 0) {
+ Empty();
+ return;
+ }
+ FXSYS_assert(nNewLength <= m_pData->m_nAllocLength);
+ m_pData->m_nDataLength = nNewLength;
+ m_pData->m_String[nNewLength] = 0;
+}
+const CFX_WideString& CFX_WideString::operator=(const FX_WCHAR* lpsz) {
+ if (!lpsz || lpsz[0] == 0) {
+ Empty();
+ } else {
+ AssignCopy(FXSYS_wcslen(lpsz), lpsz);
+ }
+ return *this;
+}
+const CFX_WideString& CFX_WideString::operator=(
+ const CFX_WideStringC& stringSrc) {
+ if (stringSrc.IsEmpty()) {
+ Empty();
+ } else {
+ AssignCopy(stringSrc.GetLength(), stringSrc.GetPtr());
+ }
+ return *this;
+}
+const CFX_WideString& CFX_WideString::operator=(
+ const CFX_WideString& stringSrc) {
+ if (m_pData == stringSrc.m_pData) {
+ return *this;
+ }
+ if (stringSrc.IsEmpty()) {
+ Empty();
+ } else if ((m_pData && m_pData->m_nRefs < 0) ||
+ (stringSrc.m_pData && stringSrc.m_pData->m_nRefs < 0)) {
+ AssignCopy(stringSrc.m_pData->m_nDataLength, stringSrc.m_pData->m_String);
+ } else {
+ Empty();
+ m_pData = stringSrc.m_pData;
+ if (m_pData) {
+ m_pData->Retain();
+ }
+ }
+ return *this;
+}
+const CFX_WideString& CFX_WideString::operator+=(FX_WCHAR ch) {
+ ConcatInPlace(1, &ch);
+ return *this;
+}
+const CFX_WideString& CFX_WideString::operator+=(const FX_WCHAR* lpsz) {
+ if (lpsz) {
+ ConcatInPlace(FXSYS_wcslen(lpsz), lpsz);
+ }
+ return *this;
+}
+const CFX_WideString& CFX_WideString::operator+=(const CFX_WideString& str) {
+ if (!str.m_pData) {
+ return *this;
+ }
+ ConcatInPlace(str.m_pData->m_nDataLength, str.m_pData->m_String);
+ return *this;
+}
+const CFX_WideString& CFX_WideString::operator+=(const CFX_WideStringC& str) {
+ if (str.IsEmpty()) {
+ return *this;
+ }
+ ConcatInPlace(str.GetLength(), str.GetPtr());
+ return *this;
+}
+bool CFX_WideString::Equal(const wchar_t* ptr) const {
+ if (!m_pData) {
+ return !ptr || ptr[0] == L'\0';
+ }
+ if (!ptr) {
+ return m_pData->m_nDataLength == 0;
+ }
+ return wcslen(ptr) == static_cast<size_t>(m_pData->m_nDataLength) &&
+ wmemcmp(ptr, m_pData->m_String, m_pData->m_nDataLength) == 0;
+}
+bool CFX_WideString::Equal(const CFX_WideStringC& str) const {
+ if (!m_pData) {
+ return str.IsEmpty();
+ }
+ return str.GetLength() == m_pData->m_nDataLength &&
+ wmemcmp(str.GetPtr(), m_pData->m_String, m_pData->m_nDataLength) == 0;
+}
+bool CFX_WideString::Equal(const CFX_WideString& other) const {
+ if (IsEmpty()) {
+ return other.IsEmpty();
+ }
+ if (other.IsEmpty()) {
+ return false;
+ }
+ return other.m_pData->m_nDataLength == m_pData->m_nDataLength &&
+ wmemcmp(other.m_pData->m_String, m_pData->m_String,
+ m_pData->m_nDataLength) == 0;
+}
+void CFX_WideString::Empty() {
+ if (m_pData) {
+ m_pData->Release();
+ m_pData = NULL;
+ }
+}
+void CFX_WideString::ConcatInPlace(FX_STRSIZE nSrcLen,
+ const FX_WCHAR* lpszSrcData) {
+ if (nSrcLen == 0 || !lpszSrcData) {
+ return;
+ }
+ if (!m_pData) {
+ m_pData = StringData::Create(nSrcLen);
+ if (m_pData) {
+ FXSYS_memcpy(m_pData->m_String, lpszSrcData, nSrcLen * sizeof(FX_WCHAR));
+ }
+ return;
+ }
+ if (m_pData->m_nRefs > 1 ||
+ m_pData->m_nDataLength + nSrcLen > m_pData->m_nAllocLength) {
+ ConcatCopy(m_pData->m_nDataLength, m_pData->m_String, nSrcLen, lpszSrcData);
+ } else {
+ FXSYS_memcpy(m_pData->m_String + m_pData->m_nDataLength, lpszSrcData,
+ nSrcLen * sizeof(FX_WCHAR));
+ m_pData->m_nDataLength += nSrcLen;
+ m_pData->m_String[m_pData->m_nDataLength] = 0;
+ }
+}
+void CFX_WideString::ConcatCopy(FX_STRSIZE nSrc1Len,
+ const FX_WCHAR* lpszSrc1Data,
+ FX_STRSIZE nSrc2Len,
+ const FX_WCHAR* lpszSrc2Data) {
+ FX_STRSIZE nNewLen = nSrc1Len + nSrc2Len;
+ if (nNewLen <= 0) {
+ return;
+ }
+ // Don't release until done copying, might be one of the arguments.
+ StringData* pOldData = m_pData;
+ m_pData = StringData::Create(nNewLen);
+ if (m_pData) {
+ wmemcpy(m_pData->m_String, lpszSrc1Data, nSrc1Len);
+ wmemcpy(m_pData->m_String + nSrc1Len, lpszSrc2Data, nSrc2Len);
+ }
+ pOldData->Release();
+}
+void CFX_WideString::CopyBeforeWrite() {
+ if (!m_pData || m_pData->m_nRefs <= 1) {
+ return;
+ }
+ StringData* pData = m_pData;
+ m_pData->Release();
+ FX_STRSIZE nDataLength = pData->m_nDataLength;
+ m_pData = StringData::Create(nDataLength);
+ if (m_pData) {
+ FXSYS_memcpy(m_pData->m_String, pData->m_String,
+ (nDataLength + 1) * sizeof(FX_WCHAR));
+ }
+}
+void CFX_WideString::AllocBeforeWrite(FX_STRSIZE nLen) {
+ if (m_pData && m_pData->m_nRefs <= 1 && m_pData->m_nAllocLength >= nLen) {
+ return;
+ }
+ Empty();
+ m_pData = StringData::Create(nLen);
+}
+void CFX_WideString::AssignCopy(FX_STRSIZE nSrcLen,
+ const FX_WCHAR* lpszSrcData) {
+ AllocBeforeWrite(nSrcLen);
+ FXSYS_memcpy(m_pData->m_String, lpszSrcData, nSrcLen * sizeof(FX_WCHAR));
+ m_pData->m_nDataLength = nSrcLen;
+ m_pData->m_String[nSrcLen] = 0;
+}
+int CFX_WideString::Compare(const FX_WCHAR* lpsz) const {
+ if (m_pData)
+ return FXSYS_wcscmp(m_pData->m_String, lpsz);
+ return (!lpsz || lpsz[0] == 0) ? 0 : -1;
+}
+CFX_ByteString CFX_WideString::UTF8Encode() const {
+ return FX_UTF8Encode(*this);
+}
+CFX_ByteString CFX_WideString::UTF16LE_Encode() const {
+ if (!m_pData) {
+ return CFX_ByteString("\0\0", 2);
+ }
+ int len = m_pData->m_nDataLength;
+ CFX_ByteString result;
+ FX_CHAR* buffer = result.GetBuffer(len * 2 + 2);
+ for (int i = 0; i < len; i++) {
+ buffer[i * 2] = m_pData->m_String[i] & 0xff;
+ buffer[i * 2 + 1] = m_pData->m_String[i] >> 8;
+ }
+ buffer[len * 2] = 0;
+ buffer[len * 2 + 1] = 0;
+ result.ReleaseBuffer(len * 2 + 2);
+ return result;
+}
+
+void CFX_WideString::Reserve(FX_STRSIZE len) {
+ GetBuffer(len);
+ ReleaseBuffer(GetLength());
+}
+FX_WCHAR* CFX_WideString::GetBuffer(FX_STRSIZE nMinBufLength) {
+ if (!m_pData && nMinBufLength == 0) {
+ return NULL;
+ }
+ if (m_pData && m_pData->m_nRefs <= 1 &&
+ m_pData->m_nAllocLength >= nMinBufLength) {
+ return m_pData->m_String;
+ }
+ if (!m_pData) {
+ m_pData = StringData::Create(nMinBufLength);
+ if (!m_pData) {
+ return NULL;
+ }
+ m_pData->m_nDataLength = 0;
+ m_pData->m_String[0] = 0;
+ return m_pData->m_String;
+ }
+ StringData* pOldData = m_pData;
+ FX_STRSIZE nOldLen = pOldData->m_nDataLength;
+ if (nMinBufLength < nOldLen) {
+ nMinBufLength = nOldLen;
+ }
+ m_pData = StringData::Create(nMinBufLength);
+ if (!m_pData) {
+ return NULL;
+ }
+ FXSYS_memcpy(m_pData->m_String, pOldData->m_String,
+ (nOldLen + 1) * sizeof(FX_WCHAR));
+ m_pData->m_nDataLength = nOldLen;
+ pOldData->Release();
+ return m_pData->m_String;
+}
+
+// static
+CFX_WideString CFX_WideString::FromLocal(const CFX_ByteString& str) {
+ return FromCodePage(str, 0);
+}
+
+// static
+CFX_WideString CFX_WideString::FromCodePage(const CFX_ByteString& str,
+ FX_WORD codepage) {
+ return CFX_CharMap::GetWideString(codepage, str);
+}
+
+// static
+CFX_WideString CFX_WideString::FromUTF8(const char* str, FX_STRSIZE len) {
+ if (!str || 0 == len) {
+ return CFX_WideString();
+ }
+
+ CFX_UTF8Decoder decoder;
+ for (FX_STRSIZE i = 0; i < len; i++) {
+ decoder.Input(str[i]);
+ }
+ return decoder.GetResult();
+}
+
+// static
+CFX_WideString CFX_WideString::FromUTF16LE(const unsigned short* wstr,
+ FX_STRSIZE wlen) {
+ if (!wstr || 0 == wlen) {
+ return CFX_WideString();
+ }
+
+ CFX_WideString result;
+ FX_WCHAR* buf = result.GetBuffer(wlen);
+ for (int i = 0; i < wlen; i++) {
+ buf[i] = wstr[i];
+ }
+ result.ReleaseBuffer(wlen);
+ return result;
+}
+
+FX_STRSIZE CFX_WideString::WStringLength(const unsigned short* str) {
+ FX_STRSIZE len = 0;
+ if (str)
+ while (str[len])
+ len++;
+ return len;
+}
+
+void CFX_WideString::AllocCopy(CFX_WideString& dest,
+ FX_STRSIZE nCopyLen,
+ FX_STRSIZE nCopyIndex) const {
+ // |FX_STRSIZE| is currently typedef'd as in |int|. TODO(palmer): It
+ // should be a |size_t|, or at least unsigned.
+ if (nCopyLen == 0 || nCopyLen < 0) {
+ return;
+ }
+ pdfium::base::CheckedNumeric<FX_STRSIZE> iSize =
+ static_cast<FX_STRSIZE>(sizeof(FX_WCHAR));
+ iSize *= nCopyLen;
+ ASSERT(!dest.m_pData);
+ dest.m_pData = StringData::Create(nCopyLen);
+ if (dest.m_pData) {
+ FXSYS_memcpy(dest.m_pData->m_String, m_pData->m_String + nCopyIndex,
+ iSize.ValueOrDie());
+ }
+}
+CFX_WideString CFX_WideString::Left(FX_STRSIZE nCount) const {
+ if (!m_pData) {
+ return CFX_WideString();
+ }
+ if (nCount < 0) {
+ nCount = 0;
+ }
+ if (nCount >= m_pData->m_nDataLength) {
+ return *this;
+ }
+ CFX_WideString dest;
+ AllocCopy(dest, nCount, 0);
+ return dest;
+}
+CFX_WideString CFX_WideString::Mid(FX_STRSIZE nFirst) const {
+ return Mid(nFirst, m_pData->m_nDataLength - nFirst);
+}
+CFX_WideString CFX_WideString::Mid(FX_STRSIZE nFirst, FX_STRSIZE nCount) const {
+ if (!m_pData) {
+ return CFX_WideString();
+ }
+ if (nFirst < 0) {
+ nFirst = 0;
+ }
+ if (nCount < 0) {
+ nCount = 0;
+ }
+ if (nFirst + nCount > m_pData->m_nDataLength) {
+ nCount = m_pData->m_nDataLength - nFirst;
+ }
+ if (nFirst > m_pData->m_nDataLength) {
+ nCount = 0;
+ }
+ if (nFirst == 0 && nFirst + nCount == m_pData->m_nDataLength) {
+ return *this;
+ }
+ CFX_WideString dest;
+ AllocCopy(dest, nCount, nFirst);
+ return dest;
+}
+CFX_WideString CFX_WideString::Right(FX_STRSIZE nCount) const {
+ if (!m_pData) {
+ return CFX_WideString();
+ }
+ if (nCount < 0) {
+ nCount = 0;
+ }
+ if (nCount >= m_pData->m_nDataLength) {
+ return *this;
+ }
+ CFX_WideString dest;
+ AllocCopy(dest, nCount, m_pData->m_nDataLength - nCount);
+ return dest;
+}
+int CFX_WideString::CompareNoCase(const FX_WCHAR* lpsz) const {
+ if (!m_pData) {
+ return (!lpsz || lpsz[0] == 0) ? 0 : -1;
+ }
+ return FXSYS_wcsicmp(m_pData->m_String, lpsz);
+}
+int CFX_WideString::Compare(const CFX_WideString& str) const {
+ if (!m_pData) {
+ if (!str.m_pData) {
+ return 0;
+ }
+ return -1;
+ }
+ if (!str.m_pData) {
+ return 1;
+ }
+ int this_len = m_pData->m_nDataLength;
+ int that_len = str.m_pData->m_nDataLength;
+ int min_len = this_len < that_len ? this_len : that_len;
+ for (int i = 0; i < min_len; i++) {
+ if (m_pData->m_String[i] < str.m_pData->m_String[i]) {
+ return -1;
+ }
+ if (m_pData->m_String[i] > str.m_pData->m_String[i]) {
+ return 1;
+ }
+ }
+ if (this_len < that_len) {
+ return -1;
+ }
+ if (this_len > that_len) {
+ return 1;
+ }
+ return 0;
+}
+void CFX_WideString::SetAt(FX_STRSIZE nIndex, FX_WCHAR ch) {
+ if (!m_pData) {
+ return;
+ }
+ ASSERT(nIndex >= 0);
+ ASSERT(nIndex < m_pData->m_nDataLength);
+ CopyBeforeWrite();
+ m_pData->m_String[nIndex] = ch;
+}
+void CFX_WideString::MakeLower() {
+ if (!m_pData) {
+ return;
+ }
+ CopyBeforeWrite();
+ if (GetLength() < 1) {
+ return;
+ }
+ FXSYS_wcslwr(m_pData->m_String);
+}
+void CFX_WideString::MakeUpper() {
+ if (!m_pData) {
+ return;
+ }
+ CopyBeforeWrite();
+ if (GetLength() < 1) {
+ return;
+ }
+ FXSYS_wcsupr(m_pData->m_String);
+}
+FX_STRSIZE CFX_WideString::Find(const FX_WCHAR* lpszSub,
+ FX_STRSIZE nStart) const {
+ FX_STRSIZE nLength = GetLength();
+ if (nLength < 1 || nStart > nLength) {
+ return -1;
+ }
+ const FX_WCHAR* lpsz = FXSYS_wcsstr(m_pData->m_String + nStart, lpszSub);
+ return lpsz ? (int)(lpsz - m_pData->m_String) : -1;
+}
+FX_STRSIZE CFX_WideString::Find(FX_WCHAR ch, FX_STRSIZE nStart) const {
+ if (!m_pData) {
+ return -1;
+ }
+ FX_STRSIZE nLength = m_pData->m_nDataLength;
+ if (nStart >= nLength) {
+ return -1;
+ }
+ const FX_WCHAR* lpsz = FXSYS_wcschr(m_pData->m_String + nStart, ch);
+ return (lpsz) ? (int)(lpsz - m_pData->m_String) : -1;
+}
+void CFX_WideString::TrimRight(const FX_WCHAR* lpszTargetList) {
+ FXSYS_assert(lpszTargetList);
+ if (!m_pData || *lpszTargetList == 0) {
+ return;
+ }
+ CopyBeforeWrite();
+ FX_STRSIZE len = GetLength();
+ if (len < 1) {
+ return;
+ }
+ FX_STRSIZE pos = len;
+ while (pos) {
+ if (!FXSYS_wcschr(lpszTargetList, m_pData->m_String[pos - 1])) {
+ break;
+ }
+ pos--;
+ }
+ if (pos < len) {
+ m_pData->m_String[pos] = 0;
+ m_pData->m_nDataLength = pos;
+ }
+}
+void CFX_WideString::TrimRight(FX_WCHAR chTarget) {
+ FX_WCHAR str[2] = {chTarget, 0};
+ TrimRight(str);
+}
+void CFX_WideString::TrimRight() {
+ TrimRight(L"\x09\x0a\x0b\x0c\x0d\x20");
+}
+void CFX_WideString::TrimLeft(const FX_WCHAR* lpszTargets) {
+ FXSYS_assert(lpszTargets);
+ if (!m_pData || *lpszTargets == 0) {
+ return;
+ }
+ CopyBeforeWrite();
+ if (GetLength() < 1) {
+ return;
+ }
+ const FX_WCHAR* lpsz = m_pData->m_String;
+ while (*lpsz != 0) {
+ if (!FXSYS_wcschr(lpszTargets, *lpsz)) {
+ break;
+ }
+ lpsz++;
+ }
+ if (lpsz != m_pData->m_String) {
+ int nDataLength =
+ m_pData->m_nDataLength - (FX_STRSIZE)(lpsz - m_pData->m_String);
+ FXSYS_memmove(m_pData->m_String, lpsz,
+ (nDataLength + 1) * sizeof(FX_WCHAR));
+ m_pData->m_nDataLength = nDataLength;
+ }
+}
+void CFX_WideString::TrimLeft(FX_WCHAR chTarget) {
+ FX_WCHAR str[2] = {chTarget, 0};
+ TrimLeft(str);
+}
+void CFX_WideString::TrimLeft() {
+ TrimLeft(L"\x09\x0a\x0b\x0c\x0d\x20");
+}
+FX_STRSIZE CFX_WideString::Replace(const FX_WCHAR* lpszOld,
+ const FX_WCHAR* lpszNew) {
+ if (GetLength() < 1) {
+ return 0;
+ }
+ if (!lpszOld) {
+ return 0;
+ }
+ FX_STRSIZE nSourceLen = FXSYS_wcslen(lpszOld);
+ if (nSourceLen == 0) {
+ return 0;
+ }
+ FX_STRSIZE nReplacementLen = lpszNew ? FXSYS_wcslen(lpszNew) : 0;
+ FX_STRSIZE nCount = 0;
+ FX_WCHAR* lpszStart = m_pData->m_String;
+ FX_WCHAR* lpszEnd = m_pData->m_String + m_pData->m_nDataLength;
+ FX_WCHAR* lpszTarget;
+ {
+ while ((lpszTarget = (FX_WCHAR*)FXSYS_wcsstr(lpszStart, lpszOld)) &&
+ lpszStart < lpszEnd) {
+ nCount++;
+ lpszStart = lpszTarget + nSourceLen;
+ }
+ }
+ if (nCount > 0) {
+ CopyBeforeWrite();
+ FX_STRSIZE nOldLength = m_pData->m_nDataLength;
+ FX_STRSIZE nNewLength =
+ nOldLength + (nReplacementLen - nSourceLen) * nCount;
+ if (m_pData->m_nAllocLength < nNewLength || m_pData->m_nRefs > 1) {
+ StringData* pOldData = m_pData;
+ const FX_WCHAR* pstr = m_pData->m_String;
+ m_pData = StringData::Create(nNewLength);
+ if (!m_pData) {
+ return 0;
+ }
+ FXSYS_memcpy(m_pData->m_String, pstr,
+ pOldData->m_nDataLength * sizeof(FX_WCHAR));
+ pOldData->Release();
+ }
+ lpszStart = m_pData->m_String;
+ lpszEnd = m_pData->m_String + std::max(m_pData->m_nDataLength, nNewLength);
+ {
+ while ((lpszTarget = (FX_WCHAR*)FXSYS_wcsstr(lpszStart, lpszOld)) !=
+ NULL &&
+ lpszStart < lpszEnd) {
+ FX_STRSIZE nBalance =
+ nOldLength -
+ (FX_STRSIZE)(lpszTarget - m_pData->m_String + nSourceLen);
+ FXSYS_memmove(lpszTarget + nReplacementLen, lpszTarget + nSourceLen,
+ nBalance * sizeof(FX_WCHAR));
+ FXSYS_memcpy(lpszTarget, lpszNew, nReplacementLen * sizeof(FX_WCHAR));
+ lpszStart = lpszTarget + nReplacementLen;
+ lpszStart[nBalance] = 0;
+ nOldLength += (nReplacementLen - nSourceLen);
+ }
+ }
+ ASSERT(m_pData->m_String[nNewLength] == 0);
+ m_pData->m_nDataLength = nNewLength;
+ }
+ return nCount;
+}
+FX_STRSIZE CFX_WideString::Insert(FX_STRSIZE nIndex, FX_WCHAR ch) {
+ CopyBeforeWrite();
+ if (nIndex < 0) {
+ nIndex = 0;
+ }
+ FX_STRSIZE nNewLength = GetLength();
+ if (nIndex > nNewLength) {
+ nIndex = nNewLength;
+ }
+ nNewLength++;
+ if (!m_pData || m_pData->m_nAllocLength < nNewLength) {
+ StringData* pOldData = m_pData;
+ const FX_WCHAR* pstr = m_pData->m_String;
+ m_pData = StringData::Create(nNewLength);
+ if (!m_pData) {
+ return 0;
+ }
+ if (pOldData) {
+ FXSYS_memmove(m_pData->m_String, pstr,
+ (pOldData->m_nDataLength + 1) * sizeof(FX_WCHAR));
+ pOldData->Release();
+ } else {
+ m_pData->m_String[0] = 0;
+ }
+ }
+ FXSYS_memmove(m_pData->m_String + nIndex + 1, m_pData->m_String + nIndex,
+ (nNewLength - nIndex) * sizeof(FX_WCHAR));
+ m_pData->m_String[nIndex] = ch;
+ m_pData->m_nDataLength = nNewLength;
+ return nNewLength;
+}
+FX_STRSIZE CFX_WideString::Delete(FX_STRSIZE nIndex, FX_STRSIZE nCount) {
+ if (GetLength() < 1) {
+ return 0;
+ }
+ if (nIndex < 0) {
+ nIndex = 0;
+ }
+ FX_STRSIZE nOldLength = m_pData->m_nDataLength;
+ if (nCount > 0 && nIndex < nOldLength) {
+ CopyBeforeWrite();
+ int nBytesToCopy = nOldLength - (nIndex + nCount) + 1;
+ FXSYS_memmove(m_pData->m_String + nIndex,
+ m_pData->m_String + nIndex + nCount,
+ nBytesToCopy * sizeof(FX_WCHAR));
+ m_pData->m_nDataLength = nOldLength - nCount;
+ }
+ return m_pData->m_nDataLength;
+}
+FX_STRSIZE CFX_WideString::Remove(FX_WCHAR chRemove) {
+ if (!m_pData) {
+ return 0;
+ }
+ CopyBeforeWrite();
+ if (GetLength() < 1) {
+ return 0;
+ }
+ FX_WCHAR* pstrSource = m_pData->m_String;
+ FX_WCHAR* pstrDest = m_pData->m_String;
+ FX_WCHAR* pstrEnd = m_pData->m_String + m_pData->m_nDataLength;
+ while (pstrSource < pstrEnd) {
+ if (*pstrSource != chRemove) {
+ *pstrDest = *pstrSource;
+ pstrDest++;
+ }
+ pstrSource++;
+ }
+ *pstrDest = 0;
+ FX_STRSIZE nCount = (FX_STRSIZE)(pstrSource - pstrDest);
+ m_pData->m_nDataLength -= nCount;
+ return nCount;
+}
+#define FORCE_ANSI 0x10000
+#define FORCE_UNICODE 0x20000
+#define FORCE_INT64 0x40000
+void CFX_WideString::FormatV(const FX_WCHAR* lpszFormat, va_list argList) {
+ va_list argListSave;
+#if defined(__ARMCC_VERSION) || \
+ (!defined(_MSC_VER) && (_FX_CPU_ == _FX_X64_ || _FX_CPU_ == _FX_IA64_ || \
+ _FX_CPU_ == _FX_ARM64_)) || \
+ defined(__native_client__)
+ va_copy(argListSave, argList);
+#else
+ argListSave = argList;
+#endif
+ int nMaxLen = 0;
+ for (const FX_WCHAR* lpsz = lpszFormat; *lpsz != 0; lpsz++) {
+ if (*lpsz != '%' || *(lpsz = lpsz + 1) == '%') {
+ nMaxLen += FXSYS_wcslen(lpsz);
+ continue;
+ }
+ int nItemLen = 0;
+ int nWidth = 0;
+ for (; *lpsz != 0; lpsz++) {
+ if (*lpsz == '#') {
+ nMaxLen += 2;
+ } else if (*lpsz == '*') {
+ nWidth = va_arg(argList, int);
+ } else if (*lpsz != '-' && *lpsz != '+' && *lpsz != '0' && *lpsz != ' ') {
+ break;
+ }
+ }
+ if (nWidth == 0) {
+ nWidth = FXSYS_wtoi(lpsz);
+ while (std::iswdigit(*lpsz))
+ ++lpsz;
+ }
+ if (nWidth < 0 || nWidth > 128 * 1024) {
+ lpszFormat = L"Bad width";
+ nMaxLen = 10;
+ break;
+ }
+ int nPrecision = 0;
+ if (*lpsz == '.') {
+ lpsz++;
+ if (*lpsz == '*') {
+ nPrecision = va_arg(argList, int);
+ lpsz++;
+ } else {
+ nPrecision = FXSYS_wtoi(lpsz);
+ while (std::iswdigit(*lpsz))
+ ++lpsz;
+ }
+ }
+ if (nPrecision < 0 || nPrecision > 128 * 1024) {
+ lpszFormat = L"Bad precision";
+ nMaxLen = 14;
+ break;
+ }
+ int nModifier = 0;
+ if (*lpsz == L'I' && *(lpsz + 1) == L'6' && *(lpsz + 2) == L'4') {
+ lpsz += 3;
+ nModifier = FORCE_INT64;
+ } else {
+ switch (*lpsz) {
+ case 'h':
+ nModifier = FORCE_ANSI;
+ lpsz++;
+ break;
+ case 'l':
+ nModifier = FORCE_UNICODE;
+ lpsz++;
+ break;
+ case 'F':
+ case 'N':
+ case 'L':
+ lpsz++;
+ break;
+ }
+ }
+ switch (*lpsz | nModifier) {
+ case 'c':
+ case 'C':
+ nItemLen = 2;
+ va_arg(argList, int);
+ break;
+ case 'c' | FORCE_ANSI:
+ case 'C' | FORCE_ANSI:
+ nItemLen = 2;
+ va_arg(argList, int);
+ break;
+ case 'c' | FORCE_UNICODE:
+ case 'C' | FORCE_UNICODE:
+ nItemLen = 2;
+ va_arg(argList, int);
+ break;
+ case 's': {
+ const FX_WCHAR* pstrNextArg = va_arg(argList, const FX_WCHAR*);
+ if (pstrNextArg) {
+ nItemLen = FXSYS_wcslen(pstrNextArg);
+ if (nItemLen < 1) {
+ nItemLen = 1;
+ }
+ } else {
+ nItemLen = 6;
+ }
+ } break;
+ case 'S': {
+ const FX_CHAR* pstrNextArg = va_arg(argList, const FX_CHAR*);
+ if (pstrNextArg) {
+ nItemLen = FXSYS_strlen(pstrNextArg);
+ if (nItemLen < 1) {
+ nItemLen = 1;
+ }
+ } else {
+ nItemLen = 6;
+ }
+ } break;
+ case 's' | FORCE_ANSI:
+ case 'S' | FORCE_ANSI: {
+ const FX_CHAR* pstrNextArg = va_arg(argList, const FX_CHAR*);
+ if (pstrNextArg) {
+ nItemLen = FXSYS_strlen(pstrNextArg);
+ if (nItemLen < 1) {
+ nItemLen = 1;
+ }
+ } else {
+ nItemLen = 6;
+ }
+ } break;
+ case 's' | FORCE_UNICODE:
+ case 'S' | FORCE_UNICODE: {
+ FX_WCHAR* pstrNextArg = va_arg(argList, FX_WCHAR*);
+ if (pstrNextArg) {
+ nItemLen = FXSYS_wcslen(pstrNextArg);
+ if (nItemLen < 1) {
+ nItemLen = 1;
+ }
+ } else {
+ nItemLen = 6;
+ }
+ } break;
+ }
+ if (nItemLen != 0) {
+ if (nPrecision != 0 && nItemLen > nPrecision) {
+ nItemLen = nPrecision;
+ }
+ if (nItemLen < nWidth) {
+ nItemLen = nWidth;
+ }
+ } else {
+ switch (*lpsz) {
+ case 'd':
+ case 'i':
+ case 'u':
+ case 'x':
+ case 'X':
+ case 'o':
+ if (nModifier & FORCE_INT64) {
+ va_arg(argList, int64_t);
+ } else {
+ va_arg(argList, int);
+ }
+ nItemLen = 32;
+ if (nItemLen < nWidth + nPrecision) {
+ nItemLen = nWidth + nPrecision;
+ }
+ break;
+ case 'a':
+ case 'A':
+ case 'e':
+ case 'E':
+ case 'g':
+ case 'G':
+ va_arg(argList, double);
+ nItemLen = 128;
+ if (nItemLen < nWidth + nPrecision) {
+ nItemLen = nWidth + nPrecision;
+ }
+ break;
+ case 'f':
+ if (nWidth + nPrecision > 100) {
+ nItemLen = nPrecision + nWidth + 128;
+ } else {
+ double f;
+ char pszTemp[256];
+ f = va_arg(argList, double);
+ FXSYS_snprintf(pszTemp, sizeof(pszTemp), "%*.*f", nWidth,
+ nPrecision + 6, f);
+ nItemLen = FXSYS_strlen(pszTemp);
+ }
+ break;
+ case 'p':
+ va_arg(argList, void*);
+ nItemLen = 32;
+ if (nItemLen < nWidth + nPrecision) {
+ nItemLen = nWidth + nPrecision;
+ }
+ break;
+ case 'n':
+ va_arg(argList, int*);
+ break;
+ }
+ }
+ nMaxLen += nItemLen;
+ }
+ GetBuffer(nMaxLen);
+ if (m_pData) {
+ FXSYS_vswprintf((wchar_t*)m_pData->m_String, nMaxLen + 1,
+ (const wchar_t*)lpszFormat, argListSave);
+ ReleaseBuffer();
+ }
+ va_end(argListSave);
+}
+void CFX_WideString::Format(const FX_WCHAR* lpszFormat, ...) {
+ va_list argList;
+ va_start(argList, lpszFormat);
+ FormatV(lpszFormat, argList);
+ va_end(argList);
+}
+FX_FLOAT FX_wtof(const FX_WCHAR* str, int len) {
+ if (len == 0) {
+ return 0.0;
+ }
+ int cc = 0;
+ FX_BOOL bNegative = FALSE;
+ if (str[0] == '+') {
+ cc++;
+ } else if (str[0] == '-') {
+ bNegative = TRUE;
+ cc++;
+ }
+ int integer = 0;
+ while (cc < len) {
+ if (str[cc] == '.') {
+ break;
+ }
+ integer = integer * 10 + FXSYS_toDecimalDigit(str[cc]);
+ cc++;
+ }
+ FX_FLOAT fraction = 0;
+ if (str[cc] == '.') {
+ cc++;
+ FX_FLOAT scale = 0.1f;
+ while (cc < len) {
+ fraction += scale * FXSYS_toDecimalDigit(str[cc]);
+ scale *= 0.1f;
+ cc++;
+ }
+ }
+ fraction += (FX_FLOAT)integer;
+ return bNegative ? -fraction : fraction;
+}
+int CFX_WideString::GetInteger() const {
+ return m_pData ? FXSYS_wtoi(m_pData->m_String) : 0;
+}
+FX_FLOAT CFX_WideString::GetFloat() const {
+ return m_pData ? FX_wtof(m_pData->m_String, m_pData->m_nDataLength) : 0.0f;
+}
+
+// static
+CFX_ByteString CFX_CharMap::GetByteString(FX_WORD codepage,
+ const CFX_WideString& wstr) {
+ FXSYS_assert(IsValidCodePage(codepage));
+ int src_len = wstr.GetLength();
+ int dest_len = FXSYS_WideCharToMultiByte(codepage, 0, wstr.c_str(), src_len,
+ nullptr, 0, nullptr, nullptr);
+ CFX_ByteString bstr;
+ if (dest_len) {
+ FX_CHAR* dest_buf = bstr.GetBuffer(dest_len);
+ FXSYS_WideCharToMultiByte(codepage, 0, wstr.c_str(), src_len, dest_buf,
+ dest_len, nullptr, nullptr);
+ bstr.ReleaseBuffer(dest_len);
+ }
+ return bstr;
+}
+
+// static
+CFX_WideString CFX_CharMap::GetWideString(FX_WORD codepage,
+ const CFX_ByteString& bstr) {
+ FXSYS_assert(IsValidCodePage(codepage));
+ int src_len = bstr.GetLength();
+ int dest_len =
+ FXSYS_MultiByteToWideChar(codepage, 0, bstr, src_len, nullptr, 0);
+ CFX_WideString wstr;
+ if (dest_len) {
+ FX_WCHAR* dest_buf = wstr.GetBuffer(dest_len);
+ FXSYS_MultiByteToWideChar(codepage, 0, bstr, src_len, dest_buf, dest_len);
+ wstr.ReleaseBuffer(dest_len);
+ }
+ return wstr;
+}