Get rid of NULLs in xfa/

xfa/fxfa/parser/xfa_locale.cpp

 // 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 "xfa/fxfa/parser/xfa_locale.h"
 
 #include "core/fxcrt/include/fx_xml.h"
 #include "xfa/fxfa/parser/xfa_doclayout.h"
@@ skipping 120 matching lines @@
           }
         }
       }
     }
   }
   return wsSymbolName;
 }
 void CXFA_XMLLocale::GetDatePattern(FX_LOCALEDATETIMESUBCATEGORY eType,
                                     CFX_WideString& wsPattern) const {
   CXML_Element* pElement = m_pLocaleData->GetElement("", "datePatterns");
-  if (pElement == NULL) {
+  if (!pElement)
     return;
-  }
+
   CFX_WideString wsName;
   switch (eType) {
     case FX_LOCALEDATETIMESUBCATEGORY_Short:
       wsName = L"short";
       break;
     case FX_LOCALEDATETIMESUBCATEGORY_Default:
     case FX_LOCALEDATETIMESUBCATEGORY_Medium:
       wsName = L"med";
       break;
     case FX_LOCALEDATETIMESUBCATEGORY_Full:
       wsName = L"full";
       break;
     case FX_LOCALEDATETIMESUBCATEGORY_Long:
       wsName = L"long";
       break;
   }
   GetPattern(pElement, "datePattern", wsName.AsStringC(), wsPattern);
 }
 void CXFA_XMLLocale::GetTimePattern(FX_LOCALEDATETIMESUBCATEGORY eType,
                                     CFX_WideString& wsPattern) const {
   CXML_Element* pElement = m_pLocaleData->GetElement("", "timePatterns");
-  if (pElement == NULL) {
+  if (!pElement)
     return;
-  }
+
   CFX_WideString wsName;
   switch (eType) {
     case FX_LOCALEDATETIMESUBCATEGORY_Short:
       wsName = L"short";
       break;
     case FX_LOCALEDATETIMESUBCATEGORY_Default:
     case FX_LOCALEDATETIMESUBCATEGORY_Medium:
       wsName = L"med";
       break;
     case FX_LOCALEDATETIMESUBCATEGORY_Full:
       wsName = L"full";
       break;
     case FX_LOCALEDATETIMESUBCATEGORY_Long:
       wsName = L"long";
       break;
   }
   GetPattern(pElement, "timePattern", wsName.AsStringC(), wsPattern);
 }
 void CXFA_XMLLocale::GetNumPattern(FX_LOCALENUMSUBCATEGORY eType,
                                    CFX_WideString& wsPattern) const {
   CXML_Element* pElement = m_pLocaleData->GetElement("", "numberPatterns");
-  if (pElement == NULL) {
+  if (!pElement)
     return;
-  }
+
   switch (eType) {
     case FX_LOCALENUMPATTERN_Percent:
       wsPattern = g_FX_Percent;
       break;
     case FX_LOCALENUMPATTERN_Currency:
       wsPattern = g_FX_Currency;
       break;
     case FX_LOCALENUMPATTERN_Decimal:
       wsPattern = g_FX_Decimal;
       break;
@@ skipping 48 matching lines @@
       wsNumSymbol = GetSymbol(XFA_ELEMENT_CurrencySymbols, FX_WSTRC(L"symbol"));
       break;
     case FX_LOCALENUMSYMBOL_CurrencyName:
       wsNumSymbol =
           GetSymbol(XFA_ELEMENT_CurrencySymbols, FX_WSTRC(L"isoname"));
       break;
   }
 }
 void CXFA_NodeLocale::GetDateTimeSymbols(CFX_WideString& wsDtSymbol) const {
   CXFA_Node* pSymbols =
-      m_pLocale ? m_pLocale->GetChild(0, XFA_ELEMENT_DateTimeSymbols) : NULL;
+      m_pLocale ? m_pLocale->GetChild(0, XFA_ELEMENT_DateTimeSymbols) : nullptr;
   wsDtSymbol = pSymbols ? pSymbols->GetContent() : CFX_WideString();
 }
 void CXFA_NodeLocale::GetMonthName(int32_t nMonth,
                                    CFX_WideString& wsMonthName,
                                    FX_BOOL bAbbr) const {
   wsMonthName = GetCalendarSymbol(XFA_ELEMENT_MonthNames, nMonth, bAbbr);
 }
 void CXFA_NodeLocale::GetDayName(int32_t nWeek,
                                  CFX_WideString& wsDayName,
                                  FX_BOOL bAbbr) const {
@@ skipping 59 matching lines @@
       wsPattern = g_FX_Decimal;
       break;
     case FX_LOCALENUMPATTERN_Integer:
       wsPattern = g_FX_Integer;
       break;
   }
 }
 CXFA_Node* CXFA_NodeLocale::GetNodeByName(CXFA_Node* pParent,
                                           const CFX_WideStringC& wsName) const {
   CXFA_Node* pChild =
-      pParent ? pParent->GetNodeItem(XFA_NODEITEM_FirstChild) : NULL;
+      pParent ? pParent->GetNodeItem(XFA_NODEITEM_FirstChild) : nullptr;
   while (pChild) {
     CFX_WideString wsChild;
     if (pChild->GetAttribute(XFA_ATTRIBUTE_Name, wsChild)) {
       if (wsChild == wsName) {
         return pChild;
       }
     }
     pChild = pChild->GetNodeItem(XFA_NODEITEM_NextSibling);
   }
-  return NULL;
+  return nullptr;
 }
 CFX_WideString CXFA_NodeLocale::GetSymbol(
     XFA_ELEMENT eElement,
     const CFX_WideStringC& symbol_type) const {
-  CXFA_Node* pSymbols = m_pLocale ? m_pLocale->GetChild(0, eElement) : NULL;
+  CXFA_Node* pSymbols = m_pLocale ? m_pLocale->GetChild(0, eElement) : nullptr;
   CXFA_Node* pSymbol = GetNodeByName(pSymbols, symbol_type);
   return pSymbol ? pSymbol->GetContent() : CFX_WideString();
 }
 CFX_WideString CXFA_NodeLocale::GetCalendarSymbol(XFA_ELEMENT eElement,
                                                   int index,
                                                   FX_BOOL bAbbr) const {
   CXFA_Node* pCalendar =
-      m_pLocale ? m_pLocale->GetChild(0, XFA_ELEMENT_CalendarSymbols) : NULL;
+      m_pLocale ? m_pLocale->GetChild(0, XFA_ELEMENT_CalendarSymbols) : nullptr;
   if (pCalendar) {
     CXFA_Node* pNode = pCalendar->GetFirstChildByClass(eElement);
     for (; pNode; pNode = pNode->GetNextSameClassSibling(eElement)) {
       if (pNode->GetBoolean(XFA_ATTRIBUTE_Abbr) == bAbbr) {
         CXFA_Node* pSymbol = pNode->GetChild(index, XFA_ELEMENT_UNKNOWN);
         return pSymbol ? pSymbol->GetContent() : CFX_WideString();
       }
     }
   }
   return CFX_WideString();
 }