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package util
import (
"strings"
)
func CLIDescription(s string) (r string) {
lines := strings.Split(s, "\n")
for _, line := range lines {
if strings.TrimSpace(line) == "" {
r += "\n\n"
} else {
r += strings.Replace(line, "\t", "", -1) + " "
}
}
return WrapToMargin(strings.TrimSpace(r), 80)
}
func WrapToMargin(s string, width int) (r string) {
lines := strings.Split(s, "\n")
for _, line := range lines {
words := strings.Split(line, " ")
newLine := ""
for _, word := range words {
if len(newLine)+len(word)+1 > width {
r += strings.TrimSpace(newLine) + "\n"
newLine = word
} else {
newLine += " " + word
}
}
r += strings.TrimSpace(newLine) + "\n"
}
// Remove last new line.
// ghost:ignore
r = r[:len(r)-1]
return
}
// CLIStringSlice is used to accept multiple values from a CLI argument like:
//
// -foo value1 -foo value2
//
// Usage:
//
// var foos CLIStringSlice
// flag.Var(&foos, "foo", "Some description for this param.")
//
type CLIStringSlice []string
func (i *CLIStringSlice) String() string {
return strings.Join(*i, ";")
}
func (i *CLIStringSlice) Set(value string) error {
*i = append(*i, value)
return nil
}
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