add accounting currency formatting logic + function

1 files changed, 11 insertions, 1 deletions

diff --git a/ckb_IR/ckb_IR.go b/ckb_IR/ckb_IR.go
index 56b22684..690c9959 100644
--- a/ckb_IR/ckb_IR.go
+++ b/ckb_IR/ckb_IR.go
@@ -103,5 +103,15 @@ func (ckb *ckb_IR) FmtCurrency(num float64, v uint64, currency currency.Type) []
 
 	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
 	symbol := ckb.currencies[currency]
-	return []byte(s)
+	return append(append([]byte{}, symbol...), s...)
+}
+
+// FmtAccounting returns the currency representation of 'num' with digits/precision of 'v' for 'ckb_IR'
+// in accounting notation. returned as a []byte just in case the caller wishes to add more and can help
+// avoid allocations; otherwise just cast as string.
+func (ckb *ckb_IR) FmtAccounting(num float64, v uint64, currency currency.Type) []byte {
+
+	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
+	symbol := ckb.currencies[currency]
+	return append(append([]byte{}, symbol...), s...)
 }