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authorValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
committerValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
commit1b6a04ca5504955c571d1c97504fb45ea0befee4 (patch)
tree7579f518b23313e8a9748a88ab6173d5e030b227 /vendor/clap_builder/src/util/str_to_bool.rs
parent5ecd8cf2cba827454317368b68571df0d13d7842 (diff)
downloadfparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.tar.xz
fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.zip
Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
Diffstat (limited to 'vendor/clap_builder/src/util/str_to_bool.rs')
-rw-r--r--vendor/clap_builder/src/util/str_to_bool.rs21
1 files changed, 21 insertions, 0 deletions
diff --git a/vendor/clap_builder/src/util/str_to_bool.rs b/vendor/clap_builder/src/util/str_to_bool.rs
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+++ b/vendor/clap_builder/src/util/str_to_bool.rs
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+/// True values are `y`, `yes`, `t`, `true`, `on`, and `1`.
+pub(crate) const TRUE_LITERALS: [&str; 6] = ["y", "yes", "t", "true", "on", "1"];
+
+/// False values are `n`, `no`, `f`, `false`, `off`, and `0`.
+pub(crate) const FALSE_LITERALS: [&str; 6] = ["n", "no", "f", "false", "off", "0"];
+
+/// Converts a string literal representation of truth to true or false.
+///
+/// `false` values are `n`, `no`, `f`, `false`, `off`, and `0` (case insensitive).
+///
+/// Any other value will be considered as `true`.
+pub(crate) fn str_to_bool(val: impl AsRef<str>) -> Option<bool> {
+ let pat: &str = &val.as_ref().to_lowercase();
+ if TRUE_LITERALS.contains(&pat) {
+ Some(true)
+ } else if FALSE_LITERALS.contains(&pat) {
+ Some(false)
+ } else {
+ None
+ }
+}