add documentation to utf8_char_width

2017-10-13 17:58:53 -07:00 · 2017-10-13 17:58:53 -07:00 · 1cc66df1d5
parent 1cf9a0eb56
commit 1cc66df1d5
1 changed files with 1 additions and 0 deletions
--- a/src/de/mod.rs
+++ b/src/de/mod.rs
@ -458,6 +458,7 @@ static UTF8_CHAR_WIDTH: [u8; 256] = [
 4,4,4,4,4,0,0,0,0,0,0,0,0,0,0,0, // 0xFF
 ];

+// This function is a copy of core::str::utf8_char_width
 fn utf8_char_width(b: u8) -> usize {
    UTF8_CHAR_WIDTH[b as usize] as usize
 }