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Simplify stripFlags

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This commit is contained in:
Albert Nigmatzianov 2017-04-24 15:20:01 +02:00
parent 63121c8814
commit f4f10f6873
1 changed files with 12 additions and 22 deletions
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34
command.go
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@ -366,26 +366,20 @@ func (c *Command) HelpTemplate() string {
{{end}}{{if or .Runnable .HasSubCommands}}{{.UsageString}}{{end}}`
}
// Really only used when casting a command to a commander.
func (c *Command) resetChildrensParents() {
for _, x := range c.commands {
x.parent = c
}
}
func hasNoOptDefVal(name string, f *flag.FlagSet) bool {
flag := f.Lookup(name)
if flag == nil {
return false
}
return len(flag.NoOptDefVal) > 0
return flag.NoOptDefVal != ""
}
func shortHasNoOptDefVal(name string, fs *flag.FlagSet) bool {
result := false
fs.VisitAll(func(flag *flag.Flag) {
if flag.Shorthand == name && len(flag.NoOptDefVal) > 0 {
if flag.Shorthand == name && flag.NoOptDefVal != "" {
result = true
return
}
})
return result
@ -399,29 +393,27 @@ func stripFlags(args []string, c *Command) []string {
commands := []string{}
inQuote := false
flags := c.Flags()
Loop:
for len(args) > 0 {
s := args[0]
args = args[1:]
if !inQuote {
switch {
case strings.HasPrefix(s, "\"") || strings.Contains(s, "=\""):
inQuote = true
case strings.HasPrefix(s, "--") && !strings.Contains(s, "=") && !hasNoOptDefVal(s[2:], c.Flags()):
case strings.HasPrefix(s, "--") && !strings.Contains(s, "=") && !hasNoOptDefVal(s[2:], flags):
// If '--flag arg' then
// delete two items from args.
fallthrough // Do the same as below.
case strings.HasPrefix(s, "-") && !strings.Contains(s, "=") && len(s) == 2 && !shortHasNoOptDefVal(s[1:], c.Flags()):
// delete arg from args.
fallthrough // (do the same as below)
case strings.HasPrefix(s, "-") && !strings.Contains(s, "=") && len(s) == 2 && !shortHasNoOptDefVal(s[1:], flags):
// If '-f arg' then
// delete two items from args.
// If there are only two elements in args or less,
// break loop, ...
if len(args) <= 2 {
// delete 'arg' from args or break the loop if len(args) <= 1.
if len(args) <= 1 {
break Loop
} else {
// ... else delete first two items.
args = args[2:]
args = args[1:]
continue
}
case s != "" && !strings.HasPrefix(s, "-"):
@ -432,8 +424,6 @@ Loop:
if strings.HasSuffix(s, "\"") && !strings.HasSuffix(s, "\\\"") {
inQuote = false
}
args = args[1:]
}
return commands