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Implemented string unicode escapes

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This commit is contained in:
Erin 2022-04-24 23:29:15 +02:00 committed by ondra05
parent ed83065ee4
commit c0852fe83e
1 changed files with 18 additions and 1 deletions
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19
ablescript/src/lexer.rs
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@ -138,7 +138,24 @@ fn get_value<T: std::str::FromStr>(lexer: &mut Lexer<Token>) -> Option<T> {
fn get_string(lexer: &mut Lexer<Token>) -> Option<String> {
lexer.bump(lexer.remainder().find("*/")?);
let string = lexer.slice()[2..].to_owned();
let mut string = String::new();
let mut slice = &lexer.slice()[2..];
while let Some(escape_start) = slice.find('"') {
string.push_str(&slice.get(..escape_start)?);
slice = &slice.get(escape_start + 1..)?;
let escape_end = slice.find('"')?;
string.push(
u32::from_str_radix(&slice.get(..escape_end)?, 12)
.ok()
.and_then(char::from_u32)?,
);
slice = &slice.get(escape_end + 1..)?;
}
string.push_str(&slice);
lexer.bump(2);
Some(string)