Revision control
Copy as Markdown
Other Tools
use crate::unicode_data::{
char_info, is_id_continue_non_bmp, is_id_start_non_bmp, IS_ID_CONTINUE_TABLE, IS_ID_START_TABLE,
};
const UTF16_MAX: char = '\u{ffff}';
fn is_id_start_ascii(c: char) -> bool {
IS_ID_START_TABLE[c as usize]
}
fn is_id_continue_ascii(c: char) -> bool {
IS_ID_CONTINUE_TABLE[c as usize]
}
fn is_id_start_bmp_non_ascii(c: char) -> bool {
char_info(c).is_id_start()
}
fn is_id_continue_bmp_non_ascii(c: char) -> bool {
char_info(c).is_id_continue()
}
pub fn is_id_start(c: char) -> bool {
if c > UTF16_MAX {
return is_id_start_non_bmp(c);
}
if c < '\u{80}' {
return is_id_start_ascii(c);
}
is_id_start_bmp_non_ascii(c)
}
pub fn is_id_continue(c: char) -> bool {
if c > UTF16_MAX {
return is_id_continue_non_bmp(c);
}
if c < '\u{80}' {
return is_id_continue_ascii(c);
}
is_id_continue_bmp_non_ascii(c)
}