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Allow using unabiguous long option prefixes

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This commit is contained in:
Kovid Goyal
2022-09-30 13:29:06 +05:30
parent 7d5849cc17
commit 74b1cac344
5 changed files with 60 additions and 3 deletions
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14
tools/cli/parse-args.go
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@@ -20,9 +20,19 @@ func (self *Command) parse_args(ctx *Context, args []string) error {
consume_arg := func() string { ans := args_to_parse[0]; args_to_parse = args_to_parse[1:]; return ans }
handle_option := func(opt_str string, has_val bool, opt_val string, val_not_allowed bool) error {
opt := self.FindOption(opt_str)
if opt == nil {
possible_options := self.FindOptions(opt_str)
var opt *Option
if len(possible_options) == 1 {
opt = possible_options[0]
opt_str = opt.MatchingAlias(NormalizeOptionName(opt_str), !strings.HasPrefix(opt_str, "--"))
} else if len(possible_options) == 0 {
return &ParseError{Message: fmt.Sprintf("Unknown option: :yellow:`%s`", opt_str)}
} else {
ambi := make([]string, len(possible_options))
for i, o := range possible_options {
ambi[i] = o.MatchingAlias(NormalizeOptionName(opt_str), !strings.HasPrefix(opt_str, "--"))
}
return &ParseError{Message: fmt.Sprintf("Ambiguous option: :yellow:`%s` could be any of: %s", opt_str, strings.Join(ambi, ", "))}
}
opt.seen_option = opt_str
needs_arg := opt.needs_argument()