fdo#56124 add functions IFERROR and IFNA to calc as in ODFF1.2

Change-Id: I6403b51ac8c710ad3b8d2625e1482971f50e6b1d

3 files changed, 42 insertions, 16 deletions

diff --git a/formula/source/core/api/FormulaCompiler.cxx b/formula/source/core/api/FormulaCompiler.cxx
index f79201b6c673..e91912368a5c 100644
--- a/formula/source/core/api/FormulaCompiler.cxx
+++ b/formula/source/core/api/FormulaCompiler.cxx
@@ -824,7 +824,7 @@ sal_uInt16 FormulaCompiler::GetErrorConstant( const String& rName ) const
     {
         switch ((*iLook).second)
         {
-            // Not all may make sense in a formula, but these we know as 
+            // Not all may make sense in a formula, but these we know as
             // opcodes.
             case ocErrNull:
                 nError = errNoCode;
@@ -1125,7 +1125,8 @@ void FormulaCompiler::Factor()
                 || eOp == ocOr
                 || eOp == ocBad
                 || ( eOp >= ocInternalBegin && eOp <= ocInternalEnd )
-                || (bCompileForFAP && ((eOp == ocIf) || (eOp == ocChose)))
+                || ( bCompileForFAP
+                     && ( eOp == ocIf || eOp == ocIfError || eOp == ocIfNA || eOp == ocChose ) )
             )
         {
             pFacToken = mpToken;
@@ -1174,14 +1175,16 @@ void FormulaCompiler::Factor()
                 pFacToken->SetByte( nSepCount );
             PutCode( pFacToken );
         }
-        else if (eOp == ocIf || eOp == ocChose)
+        else if (eOp == ocIf || eOp == ocIfError || eOp == ocIfNA || eOp == ocChose)
         {
             // the PC counters are -1
             pFacToken = mpToken;
             if ( eOp == ocIf )
                 pFacToken->GetJump()[ 0 ] = 3;  // if, else, behind
-            else
+            else if ( eOp == ocChose )
                 pFacToken->GetJump()[ 0 ] = MAXJUMPCOUNT+1;
+            else
+                pFacToken->GetJump()[ 0 ] = 2;  // if, else
             eOp = NextToken();
             if (eOp == ocOpen)
             {
@@ -1195,9 +1198,10 @@ void FormulaCompiler::Factor()
             // during AutoCorrect (since pArr->GetCodeError() is
             // ignored) an unlimited ocIf would crash because
             // ScRawToken::Clone() allocates the JumpBuffer according to
-            // nJump[0]*2+2, which is 3*2+2 on ocIf.
-            const short nJumpMax =
-                (pFacToken->GetOpCode() == ocIf ? 3 : MAXJUMPCOUNT);
+            // nJump[0]*2+2, which is 3*2+2 on ocIf and 2*2+2 ocIfError and ocIfNA.
+            OpCode eFacOpCode = pFacToken->GetOpCode();
+            const short nJumpMax = ( eFacOpCode == ocIf ? 3 :
+                                       ( eFacOpCode == ocChose ? MAXJUMPCOUNT : 2 ) );
             while ( (nJumpCount < (MAXJUMPCOUNT - 1)) && (eOp == ocSep)
                     && (!pArr->GetCodeError() || bIgnoreErrors) )
             {
@@ -1216,8 +1220,10 @@ void FormulaCompiler::Factor()
                 // always limit to nJumpMax, no arbitrary overwrites
                 if ( ++nJumpCount <= nJumpMax )
                     pFacToken->GetJump()[ nJumpCount ] = pc-1;
-                if ((pFacToken->GetOpCode() == ocIf && (nJumpCount > 3)) ||
-                                 (nJumpCount >= MAXJUMPCOUNT))
+                eFacOpCode = pFacToken->GetOpCode();
+                if ( ( eFacOpCode == ocIf && nJumpCount > 3) ||
+                     ( ( eFacOpCode == ocIfError || eFacOpCode == ocIfNA ) && nJumpCount > 2 ) ||
+                     ( nJumpCount >= MAXJUMPCOUNT ) )
                     SetError(errIllegalParameter);
                 else
                     pFacToken->GetJump()[ 0 ] = nJumpCount;
diff --git a/formula/source/core/api/token.cxx b/formula/source/core/api/token.cxx
index d187073b2f22..f6110e7ce5b3 100644
--- a/formula/source/core/api/token.cxx
+++ b/formula/source/core/api/token.cxx
@@ -76,7 +76,7 @@ bool FormulaToken::IsFunction() const
             eOp != ocColRowNameAuto && eOp != ocName && eOp != ocDBArea &&
            (GetByte() != 0                                                  // x parameters
         || (SC_OPCODE_START_NO_PAR <= eOp && eOp < SC_OPCODE_STOP_NO_PAR)   // no parameter
-        || (ocIf == eOp ||  ocChose ==  eOp     )                           // @ jump commands
+        || (ocIf == eOp || ocIfError == eOp || ocIfNA == eOp || ocChose == eOp ) // @ jump commands
         || (SC_OPCODE_START_1_PAR <= eOp && eOp < SC_OPCODE_STOP_1_PAR)     // one parameter
         || (SC_OPCODE_START_2_PAR <= eOp && eOp < SC_OPCODE_STOP_2_PAR)     // x parameters (cByte==0 in
                                                                             // FuncAutoPilot)
@@ -91,9 +91,10 @@ bool FormulaToken::IsFunction() const
 sal_uInt8 FormulaToken::GetParamCount() const
 {
     if ( eOp < SC_OPCODE_STOP_DIV && eOp != ocExternal && eOp != ocMacro &&
-            eOp != ocIf && eOp != ocChose && eOp != ocPercentSign )
+         eOp != ocIf && eOp != ocIfError && eOp != ocIfNA && eOp != ocChose &&
+         eOp != ocPercentSign )
         return 0;       // parameters and specials
-                        // ocIf and ocChose not for FAP, have cByte then
+                        // ocIf, ocIfError, ocIfNA and ocChose not for FAP, have cByte then
 //2do: bool parameter whether FAP or not?
     else if ( GetByte() )
         return GetByte();   // all functions, also ocExternal and ocMacro
@@ -106,7 +107,7 @@ sal_uInt8 FormulaToken::GetParamCount() const
         return 0;           // no parameter
     else if (SC_OPCODE_START_1_PAR <= eOp && eOp < SC_OPCODE_STOP_1_PAR)
         return 1;           // one parameter
-    else if ( eOp == ocIf || eOp == ocChose )
+    else if ( eOp == ocIf || eOp == ocIfError || eOp == ocIfNA || eOp == ocChose )
         return 1;           // only the condition counts as parameter
     else
         return 0;           // all the rest, no Parameter, or
@@ -842,8 +843,8 @@ bool FormulaTokenArray::HasMatrixDoubleRefOps()
             }
             if ( eOp == ocPush || lcl_IsReference( eOp, t->GetType() )  )
                 pStack[sp++] = t;
-            else if ( eOp == ocIf || eOp == ocChose )
-            {   // Jumps ignorieren, vorheriges Result (Condition) poppen
+            else if ( eOp == ocIf || eOp == ocIfError || eOp == ocIfNA || eOp == ocChose )
+            {   // ignore Jumps, pop previous Result (Condition)
                 if ( sp )
                     --sp;
             }
@@ -1178,10 +1179,17 @@ FormulaToken* FormulaTokenArray::AddOpCode( OpCode eOp )
             pRet = new FormulaToken( svSep,eOp );
             break;
         case ocIf:
+        case ocIfError:
+        case ocIfNA:
         case ocChose:
             {
                 short nJump[MAXJUMPCOUNT + 1];
-                nJump[ 0 ] = ocIf == eOp ? 3 : MAXJUMPCOUNT+1;
+                if ( eOp == ocIf )
+                    nJump[ 0 ] = 3;
+                else if ( eOp == ocChose )
+                    nJump[ 0 ] = MAXJUMPCOUNT + 1;
+                else
+                    nJump[ 0 ] = 2;
                 pRet = new FormulaJumpToken( eOp, (short*)nJump );
             }
             break;
diff --git a/formula/source/core/resource/core_resource.src b/formula/source/core/resource/core_resource.src
index 8b0ee14e9a5a..1852d5839ae4 100644
--- a/formula/source/core/resource/core_resource.src
+++ b/formula/source/core/resource/core_resource.src
@@ -24,6 +24,8 @@
 Resource RID_STRLIST_FUNCTION_NAMES_ENGLISH_ODFF
 {
     String SC_OPCODE_IF { Text = "IF" ; };
+    String SC_OPCODE_IF_NA { Text = "IFERROR" ; };
+    String SC_OPCODE_IF_ERROR { Text = "IFNA" ; };
     String SC_OPCODE_CHOSE { Text = "CHOOSE" ; };
     String SC_OPCODE_OPEN { Text = "(" ; };
     String SC_OPCODE_CLOSE { Text = ")" ; };
@@ -362,6 +364,8 @@ Resource RID_STRLIST_FUNCTION_NAMES_ENGLISH_ODFF
 Resource RID_STRLIST_FUNCTION_NAMES_ENGLISH
 {
     String SC_OPCODE_IF { Text = "IF" ; };
+    String SC_OPCODE_IF_ERROR { Text = "IFERROR" ; };
+    String SC_OPCODE_IF_NA { Text = "IFNA" ; };
     String SC_OPCODE_CHOSE { Text = "CHOOSE" ; };
     String SC_OPCODE_OPEN { Text = "(" ; };
     String SC_OPCODE_CLOSE { Text = ")" ; };
@@ -700,6 +704,14 @@ Resource RID_STRLIST_FUNCTION_NAMES
     {
         Text [ en-US ] = "IF" ;
     };
+    String SC_OPCODE_IF_ERROR
+    {
+        Text [ en-US ] = "IFERROR" ;
+    };
+    String SC_OPCODE_IF_NA
+    {
+        Text [ en-US ] = "IFNA" ;
+    };
     String SC_OPCODE_CHOSE
     {
         Text [ en-US ] = "CHOOSE" ;