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use super::StrHelper;
impl StrHelper {
/// remove part if it contains.
///
/// # Example:
/// ```
/// #[macro_use] extern crate std_helper;
/// use std_helper::StrHelper;
///
/// let mut helper = str!("Hello, F****** ***T *I***, World!");
/// let result = helper.remove("F****** ***T *I***, ").unwrap();
///
/// assert_eq!(result, helper.to_string(), "Hello, World!");
/// ```
pub fn remove(&mut self, p: &str) -> Option<String> {
let len = p.len();
for i in 0..self.string.len() {
let remover_p = self.string
.get(i..i + len)?;
if remover_p == p {
let (part1, part2) = self
.split_at(i);
self.string = part1?.string + part2?
.split_str_at(len).1?;
break
}
}
Some(self.string.clone())
}
/// remove part at indexes.
///
/// # Example:
/// ```
/// #[macro_use] extern crate std_helper;
/// use std_helper::StrHelper;
///
/// let mut helper = str!("Hello, @@@World!");
/// let result = helper.remove_at((7, 10)).unwrap();
///
/// assert_eq!(result, helper.to_string(), "Hello, World!");
/// ```
pub fn remove_at(&mut self, p_indexes: (usize, usize)) -> Option<String> {
let p_indexes = match p_indexes {
(x, y) if y < x => (y, x),
(x, y) => (x, y)
};
let first_part = self
.split_string_at(p_indexes.0)
.0?;
let second_part = self
.split_str_at(p_indexes.1)
.1?;
self.string = first_part + second_part;
Some(self.string.clone())
}
}