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Redo #81358 in unicode-table-generator

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This commit is contained in:
Josh Stone 2021-10-06 15:45:17 -07:00
parent d480ceff38
commit e159d42a9a
1 changed files with 15 additions and 7 deletions
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22
src/tools/unicode-table-generator/src/case_mapping.rs
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@ -41,18 +41,26 @@ impl fmt::Debug for CharEscape {
}
}
static HEADER: &str = "
static HEADER: &str = r"
pub fn to_lower(c: char) -> [char; 3] {
match bsearch_case_table(c, LOWERCASE_TABLE) {
None => [c, '\\0', '\\0'],
Some(index) => LOWERCASE_TABLE[index].1,
if c.is_ascii() {
[(c as u8).to_ascii_lowercase() as char, '\0', '\0']
} else {
match bsearch_case_table(c, LOWERCASE_TABLE) {
None => [c, '\0', '\0'],
Some(index) => LOWERCASE_TABLE[index].1,
}
}
}
pub fn to_upper(c: char) -> [char; 3] {
match bsearch_case_table(c, UPPERCASE_TABLE) {
None => [c, '\\0', '\\0'],
Some(index) => UPPERCASE_TABLE[index].1,
if c.is_ascii() {
[(c as u8).to_ascii_uppercase() as char, '\0', '\0']
} else {
match bsearch_case_table(c, UPPERCASE_TABLE) {
None => [c, '\0', '\0'],
Some(index) => UPPERCASE_TABLE[index].1,
}
}
}