Move methods string methods to fx_string.cpp

This CL creates an fx_string.cpp and moves any methods defined in
fx_string.h into the .cpp file.

Change-Id: I64c310b9be6d8f4c3be633a22884023c0b16fc1b
Reviewed-on: https://pdfium-review.googlesource.com/12671
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 0 insertions, 118 deletions

diff --git a/core/fxcrt/fx_basic_util.cpp b/core/fxcrt/fx_basic_util.cpp
index d8cf087b73..a636b6cb42 100644
--- a/core/fxcrt/fx_basic_util.cpp
+++ b/core/fxcrt/fx_basic_util.cpp
@@ -5,128 +5,10 @@
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include <algorithm>
-#include <cctype>
-#include <limits>
-#include <memory>
 
-#include "core/fxcrt/fx_extension.h"
 #include "core/fxcrt/fx_stream.h"
-#include "core/fxcrt/fx_system.h"
 #include "third_party/base/ptr_util.h"
 
-namespace {
-
-const float fraction_scales[] = {0.1f,          0.01f,         0.001f,
-                                 0.0001f,       0.00001f,      0.000001f,
-                                 0.0000001f,    0.00000001f,   0.000000001f,
-                                 0.0000000001f, 0.00000000001f};
-
-float FractionalScale(size_t scale_factor, int value) {
-  return fraction_scales[scale_factor] * value;
-}
-
-}  // namespace
-
-bool FX_atonum(const CFX_ByteStringC& strc, void* pData) {
-  if (strc.Contains('.')) {
-    float* pFloat = static_cast<float*>(pData);
-    *pFloat = FX_atof(strc);
-    return false;
-  }
-
-  // Note, numbers in PDF are typically of the form 123, -123, etc. But,
-  // for things like the Permissions on the encryption hash the number is
-  // actually an unsigned value. We use a uint32_t so we can deal with the
-  // unsigned and then check for overflow if the user actually signed the value.
-  // The Permissions flag is listed in Table 3.20 PDF 1.7 spec.
-  pdfium::base::CheckedNumeric<uint32_t> integer = 0;
-  bool bNegative = false;
-  bool bSigned = false;
-  FX_STRSIZE cc = 0;
-  if (strc[0] == '+') {
-    cc++;
-    bSigned = true;
-  } else if (strc[0] == '-') {
-    bNegative = true;
-    bSigned = true;
-    cc++;
-  }
-
-  while (cc < strc.GetLength() && std::isdigit(strc[cc])) {
-    integer = integer * 10 + FXSYS_DecimalCharToInt(strc.CharAt(cc));
-    if (!integer.IsValid())
-      break;
-    cc++;
-  }
-
-  // We have a sign, and the value was greater then a regular integer
-  // we've overflowed, reset to the default value.
-  if (bSigned) {
-    if (bNegative) {
-      if (integer.ValueOrDefault(0) >
-          static_cast<uint32_t>(std::numeric_limits<int>::max()) + 1) {
-        integer = 0;
-      }
-    } else if (integer.ValueOrDefault(0) >
-               static_cast<uint32_t>(std::numeric_limits<int>::max())) {
-      integer = 0;
-    }
-  }
-
-  // Switch back to the int space so we can flip to a negative if we need.
-  uint32_t uValue = integer.ValueOrDefault(0);
-  int32_t value = static_cast<int>(uValue);
-  if (bNegative)
-    value = -value;
-
-  int* pInt = static_cast<int*>(pData);
-  *pInt = value;
-  return true;
-}
-
-float FX_atof(const CFX_ByteStringC& strc) {
-  if (strc.IsEmpty())
-    return 0.0;
-
-  int cc = 0;
-  bool bNegative = false;
-  int len = strc.GetLength();
-  if (strc[0] == '+') {
-    cc++;
-  } else if (strc[0] == '-') {
-    bNegative = true;
-    cc++;
-  }
-  while (cc < len) {
-    if (strc[cc] != '+' && strc[cc] != '-')
-      break;
-    cc++;
-  }
-  float value = 0;
-  while (cc < len) {
-    if (strc[cc] == '.')
-      break;
-    value = value * 10 + FXSYS_DecimalCharToInt(strc.CharAt(cc));
-    cc++;
-  }
-  int scale = 0;
-  if (cc < len && strc[cc] == '.') {
-    cc++;
-    while (cc < len) {
-      value += FractionalScale(scale, FXSYS_DecimalCharToInt(strc.CharAt(cc)));
-      scale++;
-      if (scale == FX_ArraySize(fraction_scales))
-        break;
-      cc++;
-    }
-  }
-  return bNegative ? -value : value;
-}
-
-float FX_atof(const CFX_WideStringC& wsStr) {
-  return FX_atof(FX_UTF8Encode(wsStr).c_str());
-}
-
 FX_FileHandle* FX_OpenFolder(const char* path) {
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
   auto pData = pdfium::MakeUnique<CFindFileDataA>();