Add {Byte/Wide}String::Trim().

So callers no longer have to call str.TrimLeft(); str.TrimRight();

Change-Id: If931eaa8d891f487b9618ebbeee5ee294e807846
Reviewed-on: https://pdfium-review.googlesource.com/18990
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

6 files changed, 9 insertions, 18 deletions

diff --git a/fxjs/cfxjse_formcalc_context.cpp b/fxjs/cfxjse_formcalc_context.cpp
index f3c4ebe462..d34493a7b2 100644
--- a/fxjs/cfxjse_formcalc_context.cpp
+++ b/fxjs/cfxjse_formcalc_context.cpp
@@ -534,8 +534,7 @@ ByteString GUIDString(bool bSeparator) {
 
 double ByteStringToDouble(const ByteStringView& szStringVal) {
   WideString wsValue = WideString::FromUTF8(szStringVal);
-  wsValue.TrimLeft();
-  wsValue.TrimRight();
+  wsValue.Trim();
 
   int32_t cc = 0;
   bool bNegative = false;
diff --git a/fxjs/cfxjse_resolveprocessor.cpp b/fxjs/cfxjse_resolveprocessor.cpp
index 7802957c7c..ef7ddc10fb 100644
--- a/fxjs/cfxjse_resolveprocessor.cpp
+++ b/fxjs/cfxjse_resolveprocessor.cpp
@@ -582,11 +582,9 @@ int32_t CFXJSE_ResolveProcessor::GetFilter(const WideStringView& wsExpression,
     return -1;
 
   wsName.ReleaseBuffer(nNameCount);
-  wsName.TrimLeft();
-  wsName.TrimRight();
+  wsName.Trim();
   wsCondition.ReleaseBuffer(nConditionCount);
-  wsCondition.TrimLeft();
-  wsCondition.TrimRight();
+  wsCondition.Trim();
   rnd.m_uHashName =
       static_cast<XFA_HashCode>(FX_HashCode_GetW(wsName.AsStringView(), false));
   return nStart;
@@ -700,8 +698,7 @@ void CFXJSE_ResolveProcessor::FilterCondition(CFXJSE_ResolveNodeData& rnd,
     }
   }
   int32_t iFoundCount = pdfium::CollectionSize<int32_t>(rnd.m_Objects);
-  wsCondition.TrimLeft();
-  wsCondition.TrimRight();
+  wsCondition.Trim();
   int32_t iLen = wsCondition.GetLength();
   if (!iLen) {
     if (rnd.m_dwStyles & XFA_RESOLVENODE_ALL) {
diff --git a/fxjs/cjs_document.cpp b/fxjs/cjs_document.cpp
index 862055a7ff..4885d68e1b 100644
--- a/fxjs/cjs_document.cpp
+++ b/fxjs/cjs_document.cpp
@@ -1264,10 +1264,8 @@ CJS_Return Document::getPageNthWord(
     }
   }
 
-  if (bStrip) {
-    swRet.TrimLeft();
-    swRet.TrimRight();
-  }
+  if (bStrip)
+    swRet.Trim();
   return CJS_Return(pRuntime->NewString(swRet.c_str()));
 }
 
diff --git a/fxjs/cjs_globaldata.cpp b/fxjs/cjs_globaldata.cpp
index 3f962734db..a78bce55c3 100644
--- a/fxjs/cjs_globaldata.cpp
+++ b/fxjs/cjs_globaldata.cpp
@@ -33,8 +33,7 @@ const uint8_t JS_RC4KEY[] = {
 
 // Returns true if non-empty, setting sPropName
 bool TrimPropName(ByteString* sPropName) {
-  sPropName->TrimLeft();
-  sPropName->TrimRight();
+  sPropName->Trim();
   return sPropName->GetLength() != 0;
 }
 
diff --git a/fxjs/cjs_publicmethods.cpp b/fxjs/cjs_publicmethods.cpp
index 7220693813..eaa16c9fe1 100644
--- a/fxjs/cjs_publicmethods.cpp
+++ b/fxjs/cjs_publicmethods.cpp
@@ -73,8 +73,7 @@ const wchar_t* const kFullMonths[] = {L"January", L"February", L"March",
 template <typename T>
 T StrTrim(const T& str) {
   T result = str;
-  result.TrimLeft(' ');
-  result.TrimRight(' ');
+  result.Trim(' ');
   return result;
 }
 
diff --git a/fxjs/cjx_hostpseudomodel.cpp b/fxjs/cjx_hostpseudomodel.cpp
index 090f23f7cd..35ab2f88c9 100644
--- a/fxjs/cjx_hostpseudomodel.cpp
+++ b/fxjs/cjx_hostpseudomodel.cpp
@@ -43,8 +43,7 @@ int32_t FilterName(const WideStringView& wsExpression,
     pBuf[nCount++] = wCur;
   }
   wsFilter.ReleaseBuffer(nCount);
-  wsFilter.TrimLeft();
-  wsFilter.TrimRight();
+  wsFilter.Trim();
   return nStart;
 }