53 lines
1.2 KiB
Rust
53 lines
1.2 KiB
Rust
//! # StringQB
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//!
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//! A query builder using mostly strings, with methods following common SQL syntax
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#![warn(missing_docs)]
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// Temporarily silence unused variables and uncalled code warnings
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// @TODO remove when most of the code is implemented
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#![allow(dead_code)]
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#![allow(unused_variables)]
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pub mod drivers;
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pub mod enums;
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pub mod query_builder;
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pub mod types;
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/// Split a string, apply a closure to each substring,
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/// then join the string back together
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///
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/// For example:
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/// ```
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/// use stringqb::split_map_join;
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///
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/// let result = split_map_join("a\n,b, c\t,d", ",", |s| s.trim().to_string());
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/// assert_eq!("a,b,c,d", result);
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/// ```
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pub fn split_map_join<'a>(
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string: &'a str,
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split_join_by: &str,
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map_fn: impl (FnMut(&'a str) -> String),
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) -> String {
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string
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.split(split_join_by)
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.into_iter()
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.map(map_fn)
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.collect::<Vec<String>>()
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.join(split_join_by)
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_split_map_join() {
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let start = "a\t,b ,c\n,d";
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let expected = "a,b,c,d";
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assert_eq!(
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split_map_join(start, ",", |s| s.trim().to_string()),
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expected
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);
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}
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}
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