/
converters.go
89 lines (78 loc) · 2.45 KB
/
converters.go
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// Licensed to The Moov Authors under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. The Moov Authors licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package ach
import (
"math"
"strconv"
"strings"
)
// converters handles golang to ACH type Converters
type converters struct{}
func (c *converters) parseNumField(r string) (s int) {
s, _ = strconv.Atoi(strings.TrimSpace(r))
return s
}
func (c *converters) parseStringField(r string) (s string) {
s = strings.TrimSpace(r)
return s
}
// formatSimpleDate takes a YYMMDD date and formats it for the fixed-width ACH file format
func (c *converters) formatSimpleDate(s string) string {
if s == "" {
return c.stringField(s, 6)
}
return s
}
// formatSimpleTime takes a HHmm (H=hour, m=minute) time and formats it for the fixed-width ACH file format
func (c *converters) formatSimpleTime(s string) string {
if s == "" {
return c.stringField(s, 4)
}
return s
}
// alphaField Alphanumeric and Alphabetic fields are left-justified and space filled.
func (c *converters) alphaField(s string, max uint) string {
ln := uint(len(s))
if ln > max {
return s[:max]
}
s += strings.Repeat(" ", int(max-ln))
return s
}
// numericField right-justified, unsigned, and zero filled
func (c *converters) numericField(n int, max uint) string {
s := strconv.Itoa(n)
ln := uint(len(s))
if ln > max {
return s[ln-max:]
}
s = strings.Repeat("0", int(max-ln)) + s
return s
}
// stringField slices to max length and zero filled
func (c *converters) stringField(s string, max uint) string {
ln := uint(len(s))
if ln > max {
return s[:max]
}
s = strings.Repeat("0", int(max-ln)) + s
return s
}
// leastSignificantDigits returns the least significant digits of v limited by maxDigits.
func (c *converters) leastSignificantDigits(v int, maxDigits uint) int {
return v % int(math.Pow10(int(maxDigits)))
}