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authorTom Sepez <tsepez@chromium.org>2017-03-31 10:32:07 -0700
committerChromium commit bot <commit-bot@chromium.org>2017-03-31 17:51:46 +0000
commitfcdb2df009796a78369a7fe8bcaab76b27f5450b (patch)
tree104104f6c1c4c1c68ef8e5b0c2bae93760e75005 /core/fxcrt/cfx_bytestring.cpp
parentfc715c3c1d9c9c623c36ae9fc8b8aac0362e4c22 (diff)
downloadpdfium-fcdb2df009796a78369a7fe8bcaab76b27f5450b.tar.xz
Re-arrange fxcrt string files to match naming.
The top-level fx_string.h is kept to include all strings. Put all fx_atof code in fx_basic_util.cpp rather than header. Change-Id: I61fe768f2e1ddf8438d27e410929f4cff918a9a3 Reviewed-on: https://pdfium-review.googlesource.com/3530 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core/fxcrt/cfx_bytestring.cpp')
-rw-r--r--core/fxcrt/cfx_bytestring.cpp820
1 files changed, 820 insertions, 0 deletions
diff --git a/core/fxcrt/cfx_bytestring.cpp b/core/fxcrt/cfx_bytestring.cpp
new file mode 100644
index 0000000000..2d3f0ab46a
--- /dev/null
+++ b/core/fxcrt/cfx_bytestring.cpp
@@ -0,0 +1,820 @@
+// 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 "core/fxcrt/cfx_bytestring.h"
+
+#include <stddef.h>
+
+#include <algorithm>
+#include <cctype>
+
+#include "core/fxcrt/cfx_string_pool_template.h"
+#include "core/fxcrt/fx_basic.h"
+#include "third_party/base/numerics/safe_math.h"
+#include "third_party/base/stl_util.h"
+
+template class CFX_StringDataTemplate<char>;
+template class CFX_StringCTemplate<char>;
+template class CFX_StringPoolTemplate<CFX_ByteString>;
+template struct std::hash<CFX_ByteString>;
+
+namespace {
+
+int Buffer_itoa(char* buf, int i, uint32_t flags) {
+ if (i == 0) {
+ buf[0] = '0';
+ return 1;
+ }
+ char buf1[32];
+ int buf_pos = 31;
+ uint32_t u = i;
+ if ((flags & FXFORMAT_SIGNED) && i < 0) {
+ u = -i;
+ }
+ int base = 10;
+ const char* str = "0123456789abcdef";
+ if (flags & FXFORMAT_HEX) {
+ base = 16;
+ if (flags & FXFORMAT_CAPITAL) {
+ str = "0123456789ABCDEF";
+ }
+ }
+ while (u != 0) {
+ buf1[buf_pos--] = str[u % base];
+ u = u / base;
+ }
+ if ((flags & FXFORMAT_SIGNED) && i < 0) {
+ buf1[buf_pos--] = '-';
+ }
+ int len = 31 - buf_pos;
+ for (int ii = 0; ii < len; ii++) {
+ buf[ii] = buf1[ii + buf_pos + 1];
+ }
+ return len;
+}
+
+const char* FX_strstr(const char* haystack,
+ int haystack_len,
+ const char* needle,
+ int needle_len) {
+ if (needle_len > haystack_len || needle_len == 0) {
+ return nullptr;
+ }
+ const char* end_ptr = haystack + haystack_len - needle_len;
+ while (haystack <= end_ptr) {
+ int i = 0;
+ while (1) {
+ if (haystack[i] != needle[i]) {
+ break;
+ }
+ i++;
+ if (i == needle_len) {
+ return haystack;
+ }
+ }
+ haystack++;
+ }
+ return nullptr;
+}
+
+} // namespace
+
+static_assert(sizeof(CFX_ByteString) <= sizeof(char*),
+ "Strings must not require more space than pointers");
+
+CFX_ByteString::CFX_ByteString(const char* pStr, FX_STRSIZE nLen) {
+ if (nLen < 0)
+ nLen = pStr ? FXSYS_strlen(pStr) : 0;
+
+ if (nLen)
+ m_pData.Reset(StringData::Create(pStr, nLen));
+}
+
+CFX_ByteString::CFX_ByteString(const uint8_t* pStr, FX_STRSIZE nLen) {
+ if (nLen > 0) {
+ m_pData.Reset(
+ StringData::Create(reinterpret_cast<const char*>(pStr), nLen));
+ }
+}
+
+CFX_ByteString::CFX_ByteString() {}
+
+CFX_ByteString::CFX_ByteString(const CFX_ByteString& other)
+ : m_pData(other.m_pData) {}
+
+CFX_ByteString::CFX_ByteString(CFX_ByteString&& other) noexcept {
+ m_pData.Swap(other.m_pData);
+}
+
+CFX_ByteString::CFX_ByteString(char ch) {
+ m_pData.Reset(StringData::Create(1));
+ m_pData->m_String[0] = ch;
+}
+
+CFX_ByteString::CFX_ByteString(const char* ptr)
+ : CFX_ByteString(ptr, ptr ? FXSYS_strlen(ptr) : 0) {}
+
+CFX_ByteString::CFX_ByteString(const CFX_ByteStringC& stringSrc) {
+ if (!stringSrc.IsEmpty())
+ m_pData.Reset(StringData::Create(stringSrc.c_str(), stringSrc.GetLength()));
+}
+
+CFX_ByteString::CFX_ByteString(const CFX_ByteStringC& str1,
+ const CFX_ByteStringC& str2) {
+ int nNewLen = str1.GetLength() + str2.GetLength();
+ if (nNewLen == 0)
+ return;
+
+ m_pData.Reset(StringData::Create(nNewLen));
+ m_pData->CopyContents(str1.c_str(), str1.GetLength());
+ m_pData->CopyContentsAt(str1.GetLength(), str2.c_str(), str2.GetLength());
+}
+
+CFX_ByteString::~CFX_ByteString() {}
+
+const CFX_ByteString& CFX_ByteString::operator=(const char* pStr) {
+ if (!pStr || !pStr[0])
+ clear();
+ else
+ AssignCopy(pStr, FXSYS_strlen(pStr));
+
+ return *this;
+}
+
+const CFX_ByteString& CFX_ByteString::operator=(
+ const CFX_ByteStringC& stringSrc) {
+ if (stringSrc.IsEmpty())
+ clear();
+ else
+ AssignCopy(stringSrc.c_str(), stringSrc.GetLength());
+
+ return *this;
+}
+
+const CFX_ByteString& CFX_ByteString::operator=(
+ const CFX_ByteString& stringSrc) {
+ if (m_pData != stringSrc.m_pData)
+ m_pData = stringSrc.m_pData;
+
+ return *this;
+}
+
+const CFX_ByteString& CFX_ByteString::operator+=(const char* pStr) {
+ if (pStr)
+ Concat(pStr, FXSYS_strlen(pStr));
+
+ return *this;
+}
+
+const CFX_ByteString& CFX_ByteString::operator+=(char ch) {
+ Concat(&ch, 1);
+ return *this;
+}
+
+const CFX_ByteString& CFX_ByteString::operator+=(const CFX_ByteString& str) {
+ if (str.m_pData)
+ Concat(str.m_pData->m_String, str.m_pData->m_nDataLength);
+
+ return *this;
+}
+
+const CFX_ByteString& CFX_ByteString::operator+=(const CFX_ByteStringC& str) {
+ if (!str.IsEmpty())
+ Concat(str.c_str(), str.GetLength());
+
+ return *this;
+}
+
+bool CFX_ByteString::operator==(const char* ptr) const {
+ if (!m_pData)
+ return !ptr || !ptr[0];
+
+ if (!ptr)
+ return m_pData->m_nDataLength == 0;
+
+ return FXSYS_strlen(ptr) == m_pData->m_nDataLength &&
+ FXSYS_memcmp(ptr, m_pData->m_String, m_pData->m_nDataLength) == 0;
+}
+
+bool CFX_ByteString::operator==(const CFX_ByteStringC& str) const {
+ if (!m_pData)
+ return str.IsEmpty();
+
+ return m_pData->m_nDataLength == str.GetLength() &&
+ FXSYS_memcmp(m_pData->m_String, str.c_str(), str.GetLength()) == 0;
+}
+
+bool CFX_ByteString::operator==(const CFX_ByteString& other) const {
+ if (m_pData == other.m_pData)
+ return true;
+
+ if (IsEmpty())
+ return other.IsEmpty();
+
+ if (other.IsEmpty())
+ return false;
+
+ return other.m_pData->m_nDataLength == m_pData->m_nDataLength &&
+ FXSYS_memcmp(other.m_pData->m_String, m_pData->m_String,
+ m_pData->m_nDataLength) == 0;
+}
+
+bool CFX_ByteString::operator<(const CFX_ByteString& str) const {
+ if (m_pData == str.m_pData)
+ return false;
+
+ int result = FXSYS_memcmp(c_str(), str.c_str(),
+ std::min(GetLength(), str.GetLength()));
+ return result < 0 || (result == 0 && GetLength() < str.GetLength());
+}
+
+bool CFX_ByteString::EqualNoCase(const CFX_ByteStringC& str) const {
+ if (!m_pData)
+ return str.IsEmpty();
+
+ FX_STRSIZE len = str.GetLength();
+ if (m_pData->m_nDataLength != len)
+ return false;
+
+ const uint8_t* pThis = (const uint8_t*)m_pData->m_String;
+ const uint8_t* pThat = str.raw_str();
+ for (FX_STRSIZE i = 0; i < len; i++) {
+ if ((*pThis) != (*pThat)) {
+ uint8_t bThis = *pThis;
+ if (bThis >= 'A' && bThis <= 'Z')
+ bThis += 'a' - 'A';
+
+ uint8_t bThat = *pThat;
+ if (bThat >= 'A' && bThat <= 'Z')
+ bThat += 'a' - 'A';
+
+ if (bThis != bThat)
+ return false;
+ }
+ pThis++;
+ pThat++;
+ }
+ return true;
+}
+
+void CFX_ByteString::AssignCopy(const char* pSrcData, FX_STRSIZE nSrcLen) {
+ AllocBeforeWrite(nSrcLen);
+ m_pData->CopyContents(pSrcData, nSrcLen);
+ m_pData->m_nDataLength = nSrcLen;
+}
+
+void CFX_ByteString::ReallocBeforeWrite(FX_STRSIZE nNewLength) {
+ if (m_pData && m_pData->CanOperateInPlace(nNewLength))
+ return;
+
+ if (nNewLength <= 0) {
+ clear();
+ return;
+ }
+
+ CFX_RetainPtr<StringData> pNewData(StringData::Create(nNewLength));
+ if (m_pData) {
+ FX_STRSIZE nCopyLength = std::min(m_pData->m_nDataLength, nNewLength);
+ pNewData->CopyContents(m_pData->m_String, nCopyLength);
+ pNewData->m_nDataLength = nCopyLength;
+ } else {
+ pNewData->m_nDataLength = 0;
+ }
+ pNewData->m_String[pNewData->m_nDataLength] = 0;
+ m_pData.Swap(pNewData);
+}
+
+void CFX_ByteString::AllocBeforeWrite(FX_STRSIZE nNewLength) {
+ if (m_pData && m_pData->CanOperateInPlace(nNewLength))
+ return;
+
+ if (nNewLength <= 0) {
+ clear();
+ return;
+ }
+
+ m_pData.Reset(StringData::Create(nNewLength));
+}
+
+void CFX_ByteString::ReleaseBuffer(FX_STRSIZE nNewLength) {
+ if (!m_pData)
+ return;
+
+ if (nNewLength == -1)
+ nNewLength = FXSYS_strlen(m_pData->m_String);
+
+ nNewLength = std::min(nNewLength, m_pData->m_nAllocLength);
+ if (nNewLength == 0) {
+ clear();
+ return;
+ }
+
+ ASSERT(m_pData->m_nRefs == 1);
+ m_pData->m_nDataLength = nNewLength;
+ m_pData->m_String[nNewLength] = 0;
+ if (m_pData->m_nAllocLength - nNewLength >= 32) {
+ // Over arbitrary threshold, so pay the price to relocate. Force copy to
+ // always occur by holding a second reference to the string.
+ CFX_ByteString preserve(*this);
+ ReallocBeforeWrite(nNewLength);
+ }
+}
+
+void CFX_ByteString::Reserve(FX_STRSIZE len) {
+ GetBuffer(len);
+}
+
+char* CFX_ByteString::GetBuffer(FX_STRSIZE nMinBufLength) {
+ if (!m_pData) {
+ if (nMinBufLength == 0)
+ return nullptr;
+
+ m_pData.Reset(StringData::Create(nMinBufLength));
+ m_pData->m_nDataLength = 0;
+ m_pData->m_String[0] = 0;
+ return m_pData->m_String;
+ }
+
+ if (m_pData->CanOperateInPlace(nMinBufLength))
+ return m_pData->m_String;
+
+ nMinBufLength = std::max(nMinBufLength, m_pData->m_nDataLength);
+ if (nMinBufLength == 0)
+ return nullptr;
+
+ CFX_RetainPtr<StringData> pNewData(StringData::Create(nMinBufLength));
+ pNewData->CopyContents(*m_pData);
+ pNewData->m_nDataLength = m_pData->m_nDataLength;
+ m_pData.Swap(pNewData);
+ return m_pData->m_String;
+}
+
+FX_STRSIZE CFX_ByteString::Delete(FX_STRSIZE nIndex, FX_STRSIZE nCount) {
+ if (!m_pData)
+ return 0;
+
+ if (nIndex < 0)
+ nIndex = 0;
+
+ FX_STRSIZE nOldLength = m_pData->m_nDataLength;
+ if (nCount > 0 && nIndex < nOldLength) {
+ FX_STRSIZE mLength = nIndex + nCount;
+ if (mLength >= nOldLength) {
+ m_pData->m_nDataLength = nIndex;
+ return m_pData->m_nDataLength;
+ }
+ ReallocBeforeWrite(nOldLength);
+ int nCharsToCopy = nOldLength - mLength + 1;
+ FXSYS_memmove(m_pData->m_String + nIndex, m_pData->m_String + mLength,
+ nCharsToCopy);
+ m_pData->m_nDataLength = nOldLength - nCount;
+ }
+ return m_pData->m_nDataLength;
+}
+
+void CFX_ByteString::Concat(const char* pSrcData, FX_STRSIZE nSrcLen) {
+ if (!pSrcData || nSrcLen <= 0)
+ return;
+
+ if (!m_pData) {
+ m_pData.Reset(StringData::Create(pSrcData, nSrcLen));
+ return;
+ }
+
+ if (m_pData->CanOperateInPlace(m_pData->m_nDataLength + nSrcLen)) {
+ m_pData->CopyContentsAt(m_pData->m_nDataLength, pSrcData, nSrcLen);
+ m_pData->m_nDataLength += nSrcLen;
+ return;
+ }
+
+ CFX_RetainPtr<StringData> pNewData(
+ StringData::Create(m_pData->m_nDataLength + nSrcLen));
+ pNewData->CopyContents(*m_pData);
+ pNewData->CopyContentsAt(m_pData->m_nDataLength, pSrcData, nSrcLen);
+ m_pData.Swap(pNewData);
+}
+
+CFX_ByteString CFX_ByteString::Mid(FX_STRSIZE nFirst) const {
+ if (!m_pData)
+ return CFX_ByteString();
+
+ return Mid(nFirst, m_pData->m_nDataLength - nFirst);
+}
+
+CFX_ByteString CFX_ByteString::Mid(FX_STRSIZE nFirst, FX_STRSIZE nCount) const {
+ if (!m_pData)
+ return CFX_ByteString();
+
+ nFirst = pdfium::clamp(nFirst, 0, m_pData->m_nDataLength);
+ nCount = pdfium::clamp(nCount, 0, m_pData->m_nDataLength - nFirst);
+ if (nCount == 0)
+ return CFX_ByteString();
+
+ if (nFirst == 0 && nCount == m_pData->m_nDataLength)
+ return *this;
+
+ CFX_ByteString dest;
+ AllocCopy(dest, nCount, nFirst);
+ return dest;
+}
+
+void CFX_ByteString::AllocCopy(CFX_ByteString& dest,
+ FX_STRSIZE nCopyLen,
+ FX_STRSIZE nCopyIndex) const {
+ if (nCopyLen <= 0)
+ return;
+
+ CFX_RetainPtr<StringData> pNewData(
+ StringData::Create(m_pData->m_String + nCopyIndex, nCopyLen));
+ dest.m_pData.Swap(pNewData);
+}
+
+#define FORCE_ANSI 0x10000
+#define FORCE_UNICODE 0x20000
+#define FORCE_INT64 0x40000
+
+CFX_ByteString CFX_ByteString::FormatInteger(int i, uint32_t flags) {
+ char buf[32];
+ return CFX_ByteString(buf, Buffer_itoa(buf, i, flags));
+}
+
+void CFX_ByteString::FormatV(const char* pFormat, va_list argList) {
+ va_list argListSave;
+ FX_VA_COPY(argListSave, argList);
+ FX_STRSIZE nMaxLen = vsnprintf(nullptr, 0, pFormat, argList);
+ if (nMaxLen > 0) {
+ GetBuffer(nMaxLen);
+ if (m_pData) {
+ // In the following two calls, there's always space in the buffer for
+ // a terminating NUL that's not included in nMaxLen.
+ memset(m_pData->m_String, 0, nMaxLen + 1);
+ vsnprintf(m_pData->m_String, nMaxLen + 1, pFormat, argListSave);
+ ReleaseBuffer();
+ }
+ }
+ va_end(argListSave);
+}
+
+void CFX_ByteString::Format(const char* pFormat, ...) {
+ va_list argList;
+ va_start(argList, pFormat);
+ FormatV(pFormat, argList);
+ va_end(argList);
+}
+
+FX_STRSIZE CFX_ByteString::Insert(FX_STRSIZE nIndex, char ch) {
+ FX_STRSIZE nNewLength = m_pData ? m_pData->m_nDataLength : 0;
+ nIndex = std::max(nIndex, 0);
+ nIndex = std::min(nIndex, nNewLength);
+ nNewLength++;
+
+ ReallocBeforeWrite(nNewLength);
+ FXSYS_memmove(m_pData->m_String + nIndex + 1, m_pData->m_String + nIndex,
+ nNewLength - nIndex);
+ m_pData->m_String[nIndex] = ch;
+ m_pData->m_nDataLength = nNewLength;
+ return nNewLength;
+}
+
+CFX_ByteString CFX_ByteString::Right(FX_STRSIZE nCount) const {
+ if (!m_pData)
+ return CFX_ByteString();
+
+ nCount = std::max(nCount, 0);
+ if (nCount >= m_pData->m_nDataLength)
+ return *this;
+
+ CFX_ByteString dest;
+ AllocCopy(dest, nCount, m_pData->m_nDataLength - nCount);
+ return dest;
+}
+
+CFX_ByteString CFX_ByteString::Left(FX_STRSIZE nCount) const {
+ if (!m_pData)
+ return CFX_ByteString();
+
+ nCount = std::max(nCount, 0);
+ if (nCount >= m_pData->m_nDataLength)
+ return *this;
+
+ CFX_ByteString dest;
+ AllocCopy(dest, nCount, 0);
+ return dest;
+}
+
+FX_STRSIZE CFX_ByteString::Find(char ch, FX_STRSIZE nStart) const {
+ if (!m_pData)
+ return -1;
+
+ if (nStart < 0 || nStart >= m_pData->m_nDataLength)
+ return -1;
+
+ const char* pStr = static_cast<const char*>(
+ memchr(m_pData->m_String + nStart, ch, m_pData->m_nDataLength - nStart));
+ return pStr ? pStr - m_pData->m_String : -1;
+}
+
+FX_STRSIZE CFX_ByteString::ReverseFind(char ch) const {
+ if (!m_pData)
+ return -1;
+
+ FX_STRSIZE nLength = m_pData->m_nDataLength;
+ while (nLength--) {
+ if (m_pData->m_String[nLength] == ch)
+ return nLength;
+ }
+ return -1;
+}
+
+FX_STRSIZE CFX_ByteString::Find(const CFX_ByteStringC& pSub,
+ FX_STRSIZE nStart) const {
+ if (!m_pData)
+ return -1;
+
+ FX_STRSIZE nLength = m_pData->m_nDataLength;
+ if (nStart > nLength)
+ return -1;
+
+ const char* pStr =
+ FX_strstr(m_pData->m_String + nStart, m_pData->m_nDataLength - nStart,
+ pSub.c_str(), pSub.GetLength());
+ return pStr ? (int)(pStr - m_pData->m_String) : -1;
+}
+
+void CFX_ByteString::MakeLower() {
+ if (!m_pData)
+ return;
+
+ ReallocBeforeWrite(m_pData->m_nDataLength);
+ FXSYS_strlwr(m_pData->m_String);
+}
+
+void CFX_ByteString::MakeUpper() {
+ if (!m_pData)
+ return;
+
+ ReallocBeforeWrite(m_pData->m_nDataLength);
+ FXSYS_strupr(m_pData->m_String);
+}
+
+FX_STRSIZE CFX_ByteString::Remove(char chRemove) {
+ if (!m_pData || m_pData->m_nDataLength < 1)
+ return 0;
+
+ char* pstrSource = m_pData->m_String;
+ char* pstrEnd = m_pData->m_String + m_pData->m_nDataLength;
+ while (pstrSource < pstrEnd) {
+ if (*pstrSource == chRemove)
+ break;
+ pstrSource++;
+ }
+ if (pstrSource == pstrEnd)
+ return 0;
+
+ ptrdiff_t copied = pstrSource - m_pData->m_String;
+ ReallocBeforeWrite(m_pData->m_nDataLength);
+ pstrSource = m_pData->m_String + copied;
+ pstrEnd = m_pData->m_String + m_pData->m_nDataLength;
+
+ char* pstrDest = pstrSource;
+ 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;
+}
+
+FX_STRSIZE CFX_ByteString::Replace(const CFX_ByteStringC& pOld,
+ const CFX_ByteStringC& pNew) {
+ if (!m_pData || pOld.IsEmpty())
+ return 0;
+
+ FX_STRSIZE nSourceLen = pOld.GetLength();
+ FX_STRSIZE nReplacementLen = pNew.GetLength();
+ FX_STRSIZE nCount = 0;
+ const char* pStart = m_pData->m_String;
+ char* pEnd = m_pData->m_String + m_pData->m_nDataLength;
+ while (1) {
+ const char* pTarget = FX_strstr(pStart, (FX_STRSIZE)(pEnd - pStart),
+ pOld.c_str(), nSourceLen);
+ if (!pTarget)
+ break;
+
+ nCount++;
+ pStart = pTarget + nSourceLen;
+ }
+ if (nCount == 0)
+ return 0;
+
+ FX_STRSIZE nNewLength =
+ m_pData->m_nDataLength + (nReplacementLen - nSourceLen) * nCount;
+
+ if (nNewLength == 0) {
+ clear();
+ return nCount;
+ }
+
+ CFX_RetainPtr<StringData> pNewData(StringData::Create(nNewLength));
+ pStart = m_pData->m_String;
+ char* pDest = pNewData->m_String;
+ for (FX_STRSIZE i = 0; i < nCount; i++) {
+ const char* pTarget = FX_strstr(pStart, (FX_STRSIZE)(pEnd - pStart),
+ pOld.c_str(), nSourceLen);
+ FXSYS_memcpy(pDest, pStart, pTarget - pStart);
+ pDest += pTarget - pStart;
+ FXSYS_memcpy(pDest, pNew.c_str(), pNew.GetLength());
+ pDest += pNew.GetLength();
+ pStart = pTarget + nSourceLen;
+ }
+ FXSYS_memcpy(pDest, pStart, pEnd - pStart);
+ m_pData.Swap(pNewData);
+ return nCount;
+}
+
+void CFX_ByteString::SetAt(FX_STRSIZE nIndex, char ch) {
+ if (!m_pData) {
+ return;
+ }
+ ASSERT(nIndex >= 0);
+ ASSERT(nIndex < m_pData->m_nDataLength);
+ ReallocBeforeWrite(m_pData->m_nDataLength);
+ m_pData->m_String[nIndex] = ch;
+}
+
+CFX_WideString CFX_ByteString::UTF8Decode() const {
+ CFX_UTF8Decoder decoder;
+ for (FX_STRSIZE i = 0; i < GetLength(); i++) {
+ decoder.Input((uint8_t)m_pData->m_String[i]);
+ }
+ return CFX_WideString(decoder.GetResult());
+}
+
+// static
+CFX_ByteString CFX_ByteString::FromUnicode(const wchar_t* str, FX_STRSIZE len) {
+ FX_STRSIZE str_len = len >= 0 ? len : FXSYS_wcslen(str);
+ return FromUnicode(CFX_WideString(str, str_len));
+}
+
+// static
+CFX_ByteString CFX_ByteString::FromUnicode(const CFX_WideString& str) {
+ return CFX_CharMap::GetByteString(0, str.AsStringC());
+}
+
+int CFX_ByteString::Compare(const CFX_ByteStringC& str) const {
+ if (!m_pData) {
+ return str.IsEmpty() ? 0 : -1;
+ }
+ int this_len = m_pData->m_nDataLength;
+ int that_len = str.GetLength();
+ int min_len = this_len < that_len ? this_len : that_len;
+ for (int i = 0; i < min_len; i++) {
+ if ((uint8_t)m_pData->m_String[i] < str.GetAt(i)) {
+ return -1;
+ }
+ if ((uint8_t)m_pData->m_String[i] > str.GetAt(i)) {
+ return 1;
+ }
+ }
+ if (this_len < that_len) {
+ return -1;
+ }
+ if (this_len > that_len) {
+ return 1;
+ }
+ return 0;
+}
+
+void CFX_ByteString::TrimRight(const CFX_ByteStringC& pTargets) {
+ if (!m_pData || pTargets.IsEmpty()) {
+ return;
+ }
+ FX_STRSIZE pos = GetLength();
+ if (pos < 1) {
+ return;
+ }
+ while (pos) {
+ FX_STRSIZE i = 0;
+ while (i < pTargets.GetLength() &&
+ pTargets[i] != m_pData->m_String[pos - 1]) {
+ i++;
+ }
+ if (i == pTargets.GetLength()) {
+ break;
+ }
+ pos--;
+ }
+ if (pos < m_pData->m_nDataLength) {
+ ReallocBeforeWrite(m_pData->m_nDataLength);
+ m_pData->m_String[pos] = 0;
+ m_pData->m_nDataLength = pos;
+ }
+}
+
+void CFX_ByteString::TrimRight(char chTarget) {
+ TrimRight(CFX_ByteStringC(chTarget));
+}
+
+void CFX_ByteString::TrimRight() {
+ TrimRight("\x09\x0a\x0b\x0c\x0d\x20");
+}
+
+void CFX_ByteString::TrimLeft(const CFX_ByteStringC& pTargets) {
+ if (!m_pData || pTargets.IsEmpty())
+ return;
+
+ FX_STRSIZE len = GetLength();
+ if (len < 1)
+ return;
+
+ FX_STRSIZE pos = 0;
+ while (pos < len) {
+ FX_STRSIZE i = 0;
+ while (i < pTargets.GetLength() && pTargets[i] != m_pData->m_String[pos]) {
+ i++;
+ }
+ if (i == pTargets.GetLength()) {
+ break;
+ }
+ pos++;
+ }
+ if (pos) {
+ ReallocBeforeWrite(len);
+ FX_STRSIZE nDataLength = len - pos;
+ FXSYS_memmove(m_pData->m_String, m_pData->m_String + pos,
+ (nDataLength + 1) * sizeof(char));
+ m_pData->m_nDataLength = nDataLength;
+ }
+}
+
+void CFX_ByteString::TrimLeft(char chTarget) {
+ TrimLeft(CFX_ByteStringC(chTarget));
+}
+
+void CFX_ByteString::TrimLeft() {
+ TrimLeft("\x09\x0a\x0b\x0c\x0d\x20");
+}
+
+uint32_t CFX_ByteString::GetID(FX_STRSIZE start_pos) const {
+ return AsStringC().GetID(start_pos);
+}
+FX_STRSIZE FX_ftoa(float d, char* buf) {
+ buf[0] = '0';
+ buf[1] = '\0';
+ if (d == 0.0f) {
+ return 1;
+ }
+ bool bNegative = false;
+ if (d < 0) {
+ bNegative = true;
+ d = -d;
+ }
+ int scale = 1;
+ int scaled = FXSYS_round(d);
+ while (scaled < 100000) {
+ if (scale == 1000000) {
+ break;
+ }
+ scale *= 10;
+ scaled = FXSYS_round(d * scale);
+ }
+ if (scaled == 0) {
+ return 1;
+ }
+ char buf2[32];
+ int buf_size = 0;
+ if (bNegative) {
+ buf[buf_size++] = '-';
+ }
+ int i = scaled / scale;
+ FXSYS_itoa(i, buf2, 10);
+ FX_STRSIZE len = FXSYS_strlen(buf2);
+ FXSYS_memcpy(buf + buf_size, buf2, len);
+ buf_size += len;
+ int fraction = scaled % scale;
+ if (fraction == 0) {
+ return buf_size;
+ }
+ buf[buf_size++] = '.';
+ scale /= 10;
+ while (fraction) {
+ buf[buf_size++] = '0' + fraction / scale;
+ fraction %= scale;
+ scale /= 10;
+ }
+ return buf_size;
+}
+CFX_ByteString CFX_ByteString::FormatFloat(float d, int precision) {
+ char buf[32];
+ FX_STRSIZE len = FX_ftoa(d, buf);
+ return CFX_ByteString(buf, len);
+}