pub fn from_backslash(s: &str) -> String {
from_escape(s, '\\')
}
pub fn from_escape(s: &str, escape: char) -> String {
if s.is_empty() {
return s.to_string()
}
let size = s.len();
let mut result = String::with_capacity(size);
let mut chars = s.chars();
while let Some(c) = chars.next() {
if c == escape {
if let Some(next) = chars.next() {
result.push(next);
} else {
}
} else {
result.push(c);
}
}
result
}