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docs(cookbook): Clarify intent of fake flags

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Ed Page
2024-01-08 10:14:37 -06:00
parent 3eaf1af052
commit 02f82146ad
1 changed files with 12 additions and 15 deletions
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27
examples/find.rs
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@@ -13,12 +13,8 @@ fn cli() -> Command {
.group(ArgGroup::new("tests").multiple(true))
.next_help_heading("TESTS")
.args([
Arg::new("empty")
position_sensitive_flag(Arg::new("empty"))
.long("empty")
.num_args(0)
.value_parser(value_parser!(bool))
.default_missing_value("true")
.default_value("false")
.action(ArgAction::Append)
.help("File is empty and is either a regular file or a directory")
.group("tests"),
@@ -31,29 +27,30 @@ fn cli() -> Command {
.group(ArgGroup::new("operators").multiple(true))
.next_help_heading("OPERATORS")
.args([
Arg::new("or")
position_sensitive_flag(Arg::new("or"))
.short('o')
.long("or")
.num_args(0)
.value_parser(value_parser!(bool))
.default_missing_value("true")
.default_value("false")
.action(ArgAction::Append)
.help("expr2 is not evaluate if exp1 is true")
.group("operators"),
Arg::new("and")
position_sensitive_flag(Arg::new("and"))
.short('a')
.long("and")
.num_args(0)
.value_parser(value_parser!(bool))
.default_missing_value("true")
.default_value("false")
.action(ArgAction::Append)
.help("Same as `expr1 expr1`")
.group("operators"),
])
}
fn position_sensitive_flag(arg: Arg) -> Arg {
// Flags don't track the position of each occurrence, so we need to emulate flags with
// value-less options to get the same result
arg.num_args(0)
.value_parser(value_parser!(bool))
.default_missing_value("true")
.default_value("false")
}
#[derive(Clone, PartialEq, Eq, Hash, Debug)]
pub enum Value {
Bool(bool),