Function escape_pattern_string

src/canonicalize_and_process.rs:300–310

Ref: https://wicg.github.io/urlpattern/#escape-a-pattern-string

(input: &str)

// Ref: https://wicg.github.io/urlpattern/#escape-a-pattern-string
pub fn escape_pattern_string(input: &str) -> String {
  assert!(input.is_ascii());
  let mut result = String::new();
  for char in input.chars() {
    if matches!(char, '+' | '*' | '?' | ':' | '{' | '}' | '(' | ')' | '\\') {
      result.push('\\');
    }
    result.push(char);
  }
  result
}