2024-07-03 00:47:58 +00:00
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use crate::Result;
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2024-07-03 23:12:43 +00:00
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pub const EMPTY: &str = "";
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2024-07-05 07:01:11 +00:00
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/// Find the common prefix from a collection of strings and return a slice
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/// ```
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/// use conduit_core::utils::string::common_prefix;
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/// let input = ["conduwuit", "conduit", "construct"];
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/// common_prefix(&input) == "con";
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/// ```
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#[must_use]
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2024-07-08 16:30:59 +00:00
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#[allow(clippy::string_slice)]
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2024-07-05 07:01:11 +00:00
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pub fn common_prefix<'a>(choice: &'a [&str]) -> &'a str {
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choice.first().map_or(EMPTY, move |best| {
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choice.iter().skip(1).fold(*best, |best, choice| {
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&best[0..choice
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2024-07-08 16:30:59 +00:00
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.char_indices()
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.zip(best.char_indices())
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2024-07-05 07:01:11 +00:00
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.take_while(|&(a, b)| a == b)
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.count()]
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})
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})
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}
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2024-07-03 23:12:43 +00:00
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#[inline]
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#[must_use]
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pub fn split_once_infallible<'a>(input: &'a str, delim: &'_ str) -> (&'a str, &'a str) {
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input.split_once(delim).unwrap_or((input, EMPTY))
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}
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2024-07-03 00:47:58 +00:00
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/// Parses the bytes into a string.
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pub fn string_from_bytes(bytes: &[u8]) -> Result<String> {
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let str: &str = str_from_bytes(bytes)?;
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Ok(str.to_owned())
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}
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/// Parses the bytes into a string.
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#[inline]
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pub fn str_from_bytes(bytes: &[u8]) -> Result<&str> { Ok(std::str::from_utf8(bytes)?) }
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