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expand, unexpand: fix build on stable

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Michael Gehring 2016-01-06 16:34:58 +01:00 • committed by Roy Ivy III
parent 0a3a2ca935
commit 512a6a3201
2 changed files with 29 additions and 0 deletions
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1
src/uucore/lib.rs
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@ -7,6 +7,7 @@ mod macros;
pub mod fs; pub mod fs;
pub mod parse_time; pub mod parse_time;
pub mod utf8;
#[cfg(unix)] pub mod c_types; #[cfg(unix)] pub mod c_types;
#[cfg(unix)] pub mod process; #[cfg(unix)] pub mod process;

28
src/uucore/utf8.rs Normal file
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@ -0,0 +1,28 @@
/* This is taken from the rust_unicode crate. Remove once 'unicode' becomes stable */
// https://tools.ietf.org/html/rfc3629
static UTF8_CHAR_WIDTH: [u8; 256] = [
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, // 0x1F
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, // 0x3F
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, // 0x5F
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, // 0x7F
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 0x9F
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 0xBF
0,0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, // 0xDF
3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, // 0xEF
4,4,4,4,4,0,0,0,0,0,0,0,0,0,0,0, // 0xFF
];
/// Given a first byte, determine how many bytes are in this UTF-8 character
#[inline]
pub fn utf8_char_width(b: u8) -> usize {
return UTF8_CHAR_WIDTH[b as usize] as usize;
}