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Unified Diff: core/src/fxcrt/fx_basic_wstring.cpp

Issue 1800523005: Move core/src/ up to core/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 9 months ago
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Index: core/src/fxcrt/fx_basic_wstring.cpp
diff --git a/core/src/fxcrt/fx_basic_wstring.cpp b/core/src/fxcrt/fx_basic_wstring.cpp
deleted file mode 100644
index 95b761bd09e67a55b38ae5216ab5e555b8872a96..0000000000000000000000000000000000000000
--- a/core/src/fxcrt/fx_basic_wstring.cpp
+++ /dev/null
@@ -1,1050 +0,0 @@
-// 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;
-}
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