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suggestions.go
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suggestions.go
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//go:build !urfave_cli_no_suggest && !urfave_cli_core
// +build !urfave_cli_no_suggest,!urfave_cli_core
package cli
import (
"fmt"
"github.com/antzucaro/matchr"
)
func suggestFlag(flags []Flag, provided string, hideHelp bool) string {
distance := 0.0
suggestion := ""
for _, flag := range flags {
flagNames := flag.Names()
if !hideHelp {
flagNames = append(flagNames, HelpFlag.Names()...)
}
for _, name := range flagNames {
newDistance := matchr.JaroWinkler(name, provided, true)
if newDistance > distance {
distance = newDistance
suggestion = name
}
}
}
if len(suggestion) == 1 {
suggestion = "-" + suggestion
} else if len(suggestion) > 1 {
suggestion = "--" + suggestion
}
return suggestion
}
// suggestCommand takes a list of commands and a provided string to suggest a
// command name
func suggestCommand(commands []*Command, provided string) (suggestion string) {
distance := 0.0
for _, command := range commands {
for _, name := range append(command.Names(), helpName, helpAlias) {
newDistance := matchr.JaroWinkler(name, provided, true)
if newDistance > distance {
distance = newDistance
suggestion = name
}
}
}
return fmt.Sprintf(didYouMeanTemplate, suggestion)
}