переделан алгоритм получения доли года.

git-svn-id: svn://192.168.3.15/activex/AVS/Sources/TeamlabOffice/trunk/OfficeWeb@56270 954022d7-b5bf-4e40-9824-e11837661b57

Excel/model/FormulaObjects/dateandtimeFunctions.js

@@ -209,6 +209,52 @@ function GetDiffDate( d1, d2, nMode ) {
     return (bNeg ? -nRet : nRet) / c_msPerDay / pOptDaysIn1stYear;
 }
 
+function days360( date1, date2, flag ){
+    var sign;
+
+    var nY1 = date1.getUTCFullYear(), nM1 = date1.getUTCMonth()+1, nD1 = date1.getUTCDate(),
+        nY2 = date2.getUTCFullYear(), nM2 = date2.getUTCMonth()+1, nD2 = date2.getUTCDate();
+
+    if (flag && (date2 < date1))
+    {
+        sign = date1;
+        date1 = date2;
+        date2 = sign;
+        sign = -1.0;
+    }
+    else
+        sign = 1.0;
+    if (nD1 == 31)
+        nD1 -= 1;
+    else if (!flag)
+        {
+            if (nM1 == 2)
+            {
+                switch ( nD1 )
+                {
+                    case 28 :
+                        if ( !date1.isLeapYear() )
+                            nD1 = 30;
+                        break;
+                    case 29 :
+                        nD1 = 30;
+                        break;
+                }
+            }
+        }
+        if (nD2 == 31)
+        {
+            if (!flag )
+            {
+                if (nD1 == 30)
+                    nD2--;
+            }
+            else
+                nD2 = 30;
+        }
+        return  sign * ( nD2 - nD1 + ( nM2 - nM1 )* 30.0 + ( nY2 - nY1 ) * 360.0 ) ;
+}
+
 cFormulaFunction.DateAndTime = {
     'groupName':"DateAndTime",
     'DATE':cDATE,
@@ -611,8 +657,7 @@ cDAYS360.prototype.Calculate = function ( arg ) {
 
     var date1 = Date.prototype.getDateFromExcel( arg0.getValue() ), date2 = Date.prototype.getDateFromExcel( arg1.getValue() );
 
-    return this.value = new cNumber( GetDiffDate360( date1.getUTCDate(), date1.getUTCMonth() + 1, date1.getUTCFullYear(), date1.isLeapYear(),
-        date2.getUTCDate(), date2.getUTCMonth() + 1, date2.getUTCFullYear(), !arg2.toBool() ) )
+    return this.value = new cNumber( days360( date1, date2, arg2.toBool() ) );
 
 }
 cDAYS360.prototype.getInfo = function () {

Excel/model/FormulaObjects/parserFormula.js

@@ -134,6 +134,23 @@ Math.fact = function ( n ) {
     return res;
 };
 
+Math.doubleFact = function ( n ) {
+    var res = 1;
+    n = this.floor( n );
+    if ( n < 0 ) {
+        return NaN;
+    }
+    else if ( n > 170 ) {
+        return Infinity;
+    }
+//    n = Math.floor((n+1)/2);
+    while ( n > 0 ) {
+        res *= n;
+        n-=2;
+    }
+    return res;
+};
+
 Math.factor = function ( n ) {
     var res = 1;
     n = this.floor( n );
@@ -3837,26 +3854,44 @@ function matching( x, y, oper ) {
 }
 
 function GetDiffDate360( nDay1, nMonth1, nYear1, bLeapYear1, nDay2, nMonth2, nYear2, bUSAMethod ) {
-    if ( nDay1 == 31 )
-        nDay1--;
-    else if ( bUSAMethod && ( nMonth1 == 2 && ( nDay1 == 29 || ( nDay1 == 28 && !bLeapYear1 ) ) ) )
-        nDay1 = 30;
+    var nDayDiff;
+    var startTime = new Date( nYear1, nMonth1-1, nDay1 ),
+        endTime = new Date( nYear2, nMonth2-1, nDay2 ),
+        nY, nM, nD;
 
-    if ( nDay2 == 31 ) {
-        if ( bUSAMethod && nDay1 != 30 ) {
-            nDay2 = 1;
-            if ( nMonth2 == 12 ) {
-                nYear2++;
-                nMonth2 = 1;
+    if( startTime > endTime ){
+        nY = nYear1;nYear1 = nYear2; nYear2 = nY;
+        nM = nMonth1;nMonth1 = nMonth2; nMonth2 = nM;
+        nD = nDay1;nDay1 = nDay2; nDay2 = nD;
     }
-            else
-                nMonth2++;
+
+    if ( bUSAMethod ) {
+        if ( nDay1 == 31 ) {
+            nDay1--;
         }
-        else
+        if ( nDay1 == 30 && nDay2 == 31 ) {
+            nDay2--;
+        }
+        else {
+            if ( nMonth1 == 2 && nDay1 == ( new Date(nYear1, 0, 1).isLeapYear() ? 29 : 28 ) ) {
+                nDay1 = 30;
+                if ( nMonth2 == 2 && nDay2 == ( new Date(nYear2, 0, 1).isLeapYear() ? 29 : 28 ) ) {
                     nDay2 = 30;
                 }
-
-    return ( nDay2 - nDay1 ) + ( nMonth2 - nMonth1 ) * 30 + ( nYear2 - nYear1 ) * 360;
+            }
+        }
+        nDayDiff = ( nYear2 - nYear1 ) * 360 + ( nMonth2 - nMonth1 ) * 30 + ( nDay2 - nDay1 );
+    }
+    else {
+        if ( nDay1 == 31 ) {
+            nDay1--;
+        }
+        if ( nDay2 == 31 ) {
+            nDay2--;
+        }
+        nDayDiff = ( nYear2 - nYear1 ) * 360 + ( nMonth2 - nMonth1 ) * 30 + ( nDay2 - nDay1 );
+    }
+    return nDayDiff;
 }
 
 function searchRegExp( str, flags ) {