Regression in version 3.14-beta1: three or four-part formats with locale id cause exceptions when formatting instead of falling back to other formatting

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1724488 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/ss/format/CellFormatPart.java

@@ -140,6 +140,9 @@ public class CellFormatPart {
 
         String format = "(?:" + color + ")?                 # Text color\n" +
                 "(?:\\[" + condition + "\\])?               # Condition\n" +
+                // see https://msdn.microsoft.com/en-ca/goglobal/bb964664.aspx and https://bz.apache.org/ooo/show_bug.cgi?id=70003
+                // we ignore these for now though
+                "(?:\\[\\$-[0-9a-fA-F]+\\])?                # Optional locale id, ignored currently\n" +
                 "((?:" + part + ")+)                        # Format spec\n";
 
         int flags = Pattern.COMMENTS | Pattern.CASE_INSENSITIVE;
@@ -360,7 +363,7 @@ public class CellFormatPart {
                     }
                     // Something else inside [] which isn't supported!
                     throw new IllegalArgumentException("Unsupported [] format block '" +
-                                                       repl + "' in '" + fdesc + "'");
+                                                       repl + "' in '" + fdesc + "' with c2: " + c2);
                 case '#':
                 case '?':
                     return CellFormatType.NUMBER;

src/java/org/apache/poi/ss/usermodel/DataFormatter.java

@@ -314,13 +314,15 @@ public class DataFormatter implements Observer {
                 CellFormat cfmt = CellFormat.getInstance(formatStr);
                 // CellFormat requires callers to identify date vs not, so do so
                 Object cellValueO = Double.valueOf(cellValue);
-                if (DateUtil.isADateFormat(formatIndex, formatStr)) {
+                if (DateUtil.isADateFormat(formatIndex, formatStr) && 
+                        // don't try to handle Date value 0, let a 3 or 4-part format take care of it 
+                        ((Double)cellValueO).doubleValue() != 0.0) {
                     cellValueO = DateUtil.getJavaDate(cellValue);
                 }
                 // Wrap and return (non-cachable - CellFormat does that)
                 return new CellFormatResultWrapper( cfmt.apply(cellValueO) );
             } catch (Exception e) {
-                logger.log(POILogger.WARN, "Formatting failed as " + formatStr + ", falling back", e);
+                logger.log(POILogger.WARN, "Formatting failed for format " + formatStr + ", falling back", e);
             }
         }
         

src/testcases/org/apache/poi/hssf/usermodel/TestHSSFDataFormatter.java

@@ -96,7 +96,11 @@ public final class TestHSSFDataFormatter {
             "[$-409]mmmmm;@",
             "[$-409]mmmmm\\-yy;@",
             "mmmm/d/yyyy;@",
-            "[$-409]d\\-mmm\\-yyyy;@"
+            "[$-409]d\\-mmm\\-yyyy;@",
+            "[$-409]d\\-mmm;[$-3]d\\-mmm;@",      // international three-part
+            "[$-41f]d\\-mmm;[$-41f]d\\-mmm;@",      // turkish international three-part
+            "[$-F40f]d\\-mmm;[$-F40f]d\\-mmm;@",      // custom international three-part
+            "[$-F40f]d\\-mmm;[$-F40f]d\\-mmm;0;@"      // custom international four-part
         };
 
         //valid time formats - all should have 11:23 in output
@@ -120,12 +124,16 @@ public final class TestHSSFDataFormatter {
             "$#,##0.00",
             "[$-809]#,##0.00", // international format
             "[$-2]#,##0.00", // international format
+            "[$-041f]#,##0.00", // international format
             "0000.00000%",
             "0.000E+00",
             "0.00E+00",
             "[BLACK]0.00;[COLOR 5]##.##",
             "[>999999]#,,\"M\";[>999]#,\"K\";#", // num/K/M
             "[>999999]#.000,,\"M\";[>999]#.000,\"K\";#.000", // with decimals
+            "[$-809]#,##0.00;[$-809]#,##0.00", // two-part international format
+            "[$-809]#,##0.00;[$-809]#,##0.00;0", // three-part international format
+            "[$-809]#,##0.00;[$-809]#,##0.00;0;@", // four-part international format
         };
 
         // invalid date formats -- will throw exception in DecimalFormat ctor

src/testcases/org/apache/poi/ss/format/TestCellFormat.java

@@ -16,7 +16,7 @@
 ==================================================================== */
 package org.apache.poi.ss.format;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.*;
 
 import java.io.IOException;
 import java.text.ParseException;
@@ -975,4 +975,40 @@ public class TestCellFormat {
         //assertEquals(" "+pound+"   -  ", cfUK.apply(Double.valueOf(0)).text);
         //assertEquals(" -    "+euro+"  ", cfFR.apply(Double.valueOf(0)).text);
     }
+
+    @Test
+    public void testThreePartComplexFormat1() {
+        // verify a rather complex format found e.g. in http://wahl.land-oberoesterreich.gv.at/Downloads/bp10.xls
+        CellFormatPart posPart = new CellFormatPart("[$-F400]h:mm:ss\\ AM/PM");
+        assertNotNull(posPart);
+        assertEquals("1:00:12 AM", posPart.apply(new Date(12345)).text);
+        
+        CellFormatPart negPart = new CellFormatPart("[$-F40]h:mm:ss\\ AM/PM");
+        assertNotNull(negPart);
+        assertEquals("1:00:12 AM", posPart.apply(new Date(12345)).text);
+
+        //assertNotNull(new CellFormatPart("_-* \"\"??_-;_-@_-"));
+        
+        CellFormat instance = CellFormat.getInstance("[$-F400]h:mm:ss\\ AM/PM;[$-F40]h:mm:ss\\ AM/PM;_-* \"\"??_-;_-@_-");
+        assertNotNull(instance);
+        assertEquals("1:00:12 AM", instance.apply(new Date(12345)).text);
+    }
+    
+    @Test
+    public void testThreePartComplexFormat2() {
+        // verify a rather complex format found e.g. in http://wahl.land-oberoesterreich.gv.at/Downloads/bp10.xls
+        CellFormatPart posPart = new CellFormatPart("dd/mm/yyyy");
+        assertNotNull(posPart);
+        assertEquals("01/01/1970", posPart.apply(new Date(12345)).text);
+        
+        CellFormatPart negPart = new CellFormatPart("dd/mm/yyyy");
+        assertNotNull(negPart);
+        assertEquals("01/01/1970", posPart.apply(new Date(12345)).text);
+
+        //assertNotNull(new CellFormatPart("_-* \"\"??_-;_-@_-"));
+        
+        CellFormat instance = CellFormat.getInstance("dd/mm/yyyy;dd/mm/yyyy;_-* \"\"??_-;_-@_-");
+        assertNotNull(instance);
+        assertEquals("01/01/1970", instance.apply(new Date(12345)).text);
+    }
 }