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use lazy_static::lazy_static;
use regex::Regex;
lazy_static! {
static ref KEYWORDS: Regex = Regex::new(
r"(?x)
^ ( as | break | const | continue | crate | else | enum | extern | false | fn | for | if
| impl | in | let | loop | match | mod | move | mut | pub | ref | return | Self | self |
static | struct | super | trait | true | type | unsafe | use | where | while | abstract
| alignof | become | box | do | final | macro | offsetof | override | priv | proc | pure
| sizeof | typeof | unsized | virtual | yield ) $
"
)
.unwrap();
}
pub fn unkeywordize<T: AsRef<str>>(ident: T) -> String {
let mut ident = ident.as_ref().to_string();
if KEYWORDS.is_match(ident.as_ref()) {
ident.push('_');
}
ident
}