77 lines
1.4 KiB
Go
77 lines
1.4 KiB
Go
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package cp437tree
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import (
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"fmt"
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"io"
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)
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const (
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VerticalRight = "├"
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DownLeft = "┐"
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UpRight = "└"
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DownRight = "┌"
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Horizontal ="─"
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Vertical = "│"
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)
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/*
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┌┐ // HeaderTop
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├┐ // HeaderMid
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│├ // ItemMid
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│└ // ItemBottom
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└┐ // HeaderBottom
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└── //ItemEndBottom
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*/
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type Node struct {
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Text string
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Children *[]Node
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}
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func (o *Request) ToTreeGroup(w io.Writer, position rune) {
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middle := "├──┐" // default middle branch
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midRow := "│ ├── "
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botRow := "│ └── "
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topBranch := "┌──┐"
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endBranch := "└──┐"
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veryBottomRow := " └── "
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rowChars := ""
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if position == 't' {
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branch = topBranch
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}
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if position == 'b' {
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branch = endBranch
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}
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// platform name header
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rowChars = midRow
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// preparing the children variable so this whole thing can be extracted later.
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children := o.Versions
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childCount := len(children) - 1
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for idx, v := range children {
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if idx == childCount {
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rowChars = botRow
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if position == 'b' {
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rowChars = veryBottomRow
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}
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}
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_, _ = fmt.Fprintf(w, "\n%s%s", rowChars, v)
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}
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// new line to end the row
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_, _ = fmt.Fprintf(w, "\n")
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}
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func idToPosition(id, count int) rune {
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// Returns 't' for top, 'b' for bottom, and 'm', for middle by comparing the idx to the count of rows.
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// Does not account for if count = 1
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if id == 0 {
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return 't'
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}
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if id == count-1 {
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return 'b'
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}
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return 'm'
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}
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