53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
package feragstring
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import "fmt"
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// ControlCharacterSet is a struct for the control character
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// field in the FERAG messages that support control characters
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// (Route Info, Production Drop).
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// Supports currently only "D" (Don't Produce) and "T" (Bundles
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// to Secondary Exit).
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type ControlCharacterSet struct {
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DontProduce bool
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BundlesToSecondaryExit bool
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}
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// NewControlCharacterSet instantiates a new Control Character Set
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// struct and returns a pointer to it.
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func NewControlCharacterSet() *ControlCharacterSet {
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cc := ControlCharacterSet{
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DontProduce: false,
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BundlesToSecondaryExit: false,
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}
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return &cc
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}
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// SetDontProduce sets the "don't produce" flag (D)
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func (cc *ControlCharacterSet) SetDontProduce() {
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cc.DontProduce = true
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}
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// SetBundlesToSecondaryExit sets the "bundles to secondary exit" flag (T)
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func (cc *ControlCharacterSet) SetBundlesToSecondaryExit() {
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cc.BundlesToSecondaryExit = true
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}
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// GetControlCharactersMessage returns the formatted FERAG string for
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// the control character set.
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func (cc *ControlCharacterSet) GetControlCharactersMessage() string {
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var ccCount int
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var ccString string
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if cc.DontProduce == true {
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ccString += "D"
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ccCount++
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}
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if cc.BundlesToSecondaryExit == true {
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ccString += "T"
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ccCount++
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}
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if ccCount == 0 {
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return ""
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}
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return fmt.Sprintf("+14%-16s", ccString)
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}
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