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Simplify stripFlags function

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This commit is contained in:
Albert Nigmatzianov 2017-04-23 22:38:30 +02:00
parent aea94819d2
commit 9890b7b2e9
1 changed files with 28 additions and 20 deletions
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48
command.go
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@ -392,40 +392,48 @@ func shortHasNoOptDefVal(name string, fs *flag.FlagSet) bool {
}
func stripFlags(args []string, c *Command) []string {
if len(args) < 1 {
if len(args) == 0 {
return args
}
c.mergePersistentFlags()
commands := []string{}
inQuote := false
inFlag := false
for _, y := range args {
Loop:
for len(args) > 0 {
s := args[0]
if !inQuote {
switch {
case strings.HasPrefix(y, "\""):
case strings.HasPrefix(s, "\"") || strings.Contains(s, "=\""):
inQuote = true
case strings.Contains(y, "=\""):
inQuote = true
case strings.HasPrefix(y, "--") && !strings.Contains(y, "="):
// TODO: this isn't quite right, we should really check ahead for 'true' or 'false'
inFlag = !hasNoOptDefVal(y[2:], c.Flags())
case strings.HasPrefix(y, "-") && !strings.Contains(y, "=") && len(y) == 2 && !shortHasNoOptDefVal(y[1:], c.Flags()):
inFlag = true
case inFlag:
inFlag = false
case y == "":
// strip empty commands, as the go tests expect this to be ok....
case !strings.HasPrefix(y, "-"):
commands = append(commands, y)
inFlag = false
case strings.HasPrefix(s, "--") && !strings.Contains(s, "=") && !hasNoOptDefVal(s[2:], c.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()):
// 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 {
break Loop
} else {
// ... else delete first two items.
args = args[2:]
continue
}
case s != "" && !strings.HasPrefix(s, "-"):
commands = append(commands, s)
}
}
if strings.HasSuffix(y, "\"") && !strings.HasSuffix(y, "\\\"") {
if strings.HasSuffix(s, "\"") && !strings.HasSuffix(s, "\\\"") {
inQuote = false
}
args = args[1:]
}
return commands