drone_macros_core/
unkeywordize.rs

1use lazy_static::lazy_static;
2use regex::Regex;
3
4lazy_static! {
5    static ref KEYWORDS: Regex = Regex::new(
6        r"(?x)
7            ^ ( as | break | const | continue | crate | else | enum | extern | false | fn | for | if
8            | impl | in | let | loop | match | mod | move | mut | pub | ref | return | Self | self |
9            static | struct | super | trait | true | type | unsafe | use | where | while | abstract
10            | alignof | become | box | do | final | macro | offsetof | override | priv | proc | pure
11            | sizeof | typeof | unsized | virtual | yield ) $
12        "
13    )
14    .unwrap();
15}
16
17/// Inserts an underscore at the end of the string if the string is a reserved
18/// keyword.
19pub fn unkeywordize<T: AsRef<str>>(ident: T) -> String {
20    let mut ident = ident.as_ref().to_string();
21    if KEYWORDS.is_match(ident.as_ref()) {
22        ident.push('_');
23    }
24    ident
25}