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23 lines
630 B
Rust
23 lines
630 B
Rust
///
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/// Extract the first line of the provided string reference.
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/// If there is no lines in the buffer, it returns a string
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/// which content is defined by the content of `fail`
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/// # Arguments
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///
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/// * `s`: The string buffer to extract the first-line from
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/// * `fail`: A string content which is returned if no lines are
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/// present in `s`
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///
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/// returns: String
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///
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/// # Examples
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///
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/// ```
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/// let s = "My name is Morgan.\n I'm working at Hugging Face.";
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/// first_line(s, "No line in string");
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/// ```
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#[inline]
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pub(crate) fn first_line(s: &str, fail: &str) -> String {
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s.lines().next().unwrap_or(fail).to_string()
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}
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