Support comma separated thousands in monetary amount

src/basic-objects/src/monetaryamount.cpp

@@ -135,6 +135,10 @@ inline std::pair<MonetaryAmount::AmountType, int8_t> AmountIntegralFromStr(std::
       if (ch == ' ') {
         break;
       }
+      if (ch == ',') {
+        // Comma can be used to separate thousands, we ignore it.
+        continue;
+      }
       throw exception("Amount string {} with invalid character {}", amountStr, ch);
     }
 

src/basic-objects/test/monetaryamount_test.cpp

@@ -767,6 +767,8 @@ TEST(MonetaryAmountTest, ExoticInput) {
 
   EXPECT_EQ(MonetaryAmount(" -.9   f&g "), MonetaryAmount("-0.9F&G"));
 
+  EXPECT_EQ(MonetaryAmount("2,708.89034514"), MonetaryAmount("2708.89034514"));
+
   EXPECT_THROW(MonetaryAmount("--.9"), exception);
 }