fdo#32703 make CSV import ignore leading spaces before quoted field content

Make CSV import ignore leading spaces if the field content without them is
quoted. Cope with broken generators that put leading blanks before a quoted
field, like "field1", "field2", "..." ignoring CSV specification
http://tools.ietf.org/html/rfc4180

sc/source/ui/docshell/impex.cxx

@@ -1363,7 +1363,19 @@ const sal_Unicode* ScImportExport::ScanNextFieldFromString( const sal_Unicode* p
 {
     rbIsQuoted = false;
     rField.Erase();
-    if ( *p == cStr )           // String in Anfuehrungszeichen
+    const sal_Unicode cBlank = ' ';
+    if (!ScGlobal::UnicodeStrChr( pSeps, cBlank))
+    {
+        // Cope with broken generators that put leading blanks before a quoted 
+        // field, like "field1", "field2", "..."
+        // NOTE: this is not in conformance with http://tools.ietf.org/html/rfc4180
+        const sal_Unicode* pb = p;
+        while (*pb == cBlank)
+            ++pb;
+        if (*pb == cStr)
+            p = pb;
+    }
+    if ( *p == cStr )           // String in quotes
     {
         rbIsQuoted = true;
         const sal_Unicode* p1;
@@ -1377,7 +1389,7 @@ const sal_Unicode* ScImportExport::ScanNextFieldFromString( const sal_Unicode* p
         if( *p )
             p++;
     }
-    else                        // bis zum Trennzeichen
+    else                        // up to delimiter
     {
         const sal_Unicode* p0 = p;
         while ( *p && !ScGlobal::UnicodeStrChr( pSeps, *p ) )
@@ -1386,7 +1398,7 @@ const sal_Unicode* ScImportExport::ScanNextFieldFromString( const sal_Unicode* p
         if( *p )
             p++;
     }
-    if ( bMergeSeps )           // folgende Trennzeichen ueberspringen
+    if ( bMergeSeps )           // skip following delimiters
     {
         while ( *p && ScGlobal::UnicodeStrChr( pSeps, *p ) )
             p++;