lazy-regex 3.5.0

lazy static regular expressions checked at compile time
Documentation 
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use {
    super::regex,
    std::borrow::Cow,
};

/// Remove the first match of the regex from the text.
///
/// If the removed match is at the start or end of the input,
/// a borrowed slice is returned.
#[must_use]
pub fn remove_match<'s>(
    rex: &regex::Regex,
    text: &'s str,
) -> Cow<'s, str> {
    let Some(m) = rex.find(text) else {
        return Cow::Borrowed(text);
    };
    if m.start() == 0 {
        return Cow::Borrowed(&text[m.end()..]);
    }
    if m.end() == text.len() {
        return Cow::Borrowed(&text[..m.start()]);
    }
    let mut s = String::with_capacity(text.len() - m.len());
    s.push_str(&text[..m.start()]);
    s.push_str(&text[m.end()..]);
    Cow::Owned(s)
}

/// Remove the first match of the regex from the given `&[u8]` slice.
///
/// If the removed match is at the start or end of the input,
/// a borrowed slice is returned.
#[must_use]
pub fn bytes_remove_match<'s>(
    rex: &regex::bytes::Regex,
    text: &'s [u8],
) -> Cow<'s, [u8]> {
    let Some(m) = rex.find(text) else {
        return Cow::Borrowed(text);
    };
    if m.start() == 0 {
        return Cow::Borrowed(&text[m.end()..]);
    }
    if m.end() == text.len() {
        return Cow::Borrowed(&text[..m.start()]);
    }
    let mut s = Vec::with_capacity(text.len() - m.len());
    s.extend_from_slice(&text[..m.start()]);
    s.extend_from_slice(&text[m.end()..]);
    Cow::Owned(s)
}