44 lines
857 B
Go
44 lines
857 B
Go
package commands
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import (
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"bytes"
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"strings"
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)
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type Arguments []string
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func (args Arguments) writeHelp(builder *bytes.Buffer) {
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for i, arg := range args {
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builder.WriteByte(' ')
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// Always treat the last argument as a must.
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if i == len(args)-1 {
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builder.WriteByte('<')
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builder.WriteString(arg)
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builder.WriteByte('>')
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} else {
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builder.WriteByte('[')
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builder.WriteString(arg)
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builder.WriteByte(']')
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}
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}
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}
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// At returns a two-part string if i is in the list of arguments. Two empty
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// strings are returned if i is out of bounds. If the argument is not a flag
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// (i.e. not optional), then flag is empty, but name isn't.
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func (args Arguments) At(i int) (name, flag string) {
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if i >= len(args) {
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return "", ""
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}
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arg := args[i]
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fis := strings.Fields(arg)
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if len(fis) != 2 {
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return arg, ""
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}
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return fis[1], fis[0]
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}
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