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Move tests, re-export items from core::ascii

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1011X 2018-03-05 16:39:09 -05:00
parent 9bfc062723
commit 1b3d1fc2aa
3 changed files with 353 additions and 829 deletions
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356
src/libcore/ascii.rs
View File

@ -19,7 +19,7 @@
//!
//! [`escape_default`]: fn.escape_default.html
#![stable(feature = "rust1", since = "1.0.0")]
#![stable(feature = "core_ascii", since = "1.26.0")]
use fmt;
use ops::Range;
@ -145,357 +145,3 @@ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.pad("EscapeDefault { .. }")
}
}
#[cfg(test)]
mod tests {
use char::from_u32;
#[test]
fn test_is_ascii() {
assert!(b"".is_ascii());
assert!(b"banana\0\x7F".is_ascii());
assert!(b"banana\0\x7F".iter().all(|b| b.is_ascii()));
assert!(!b"Vi\xe1\xbb\x87t Nam".is_ascii());
assert!(!b"Vi\xe1\xbb\x87t Nam".iter().all(|b| b.is_ascii()));
assert!(!b"\xe1\xbb\x87".iter().any(|b| b.is_ascii()));
assert!("".is_ascii());
assert!("banana\0\u{7F}".is_ascii());
assert!("banana\0\u{7F}".chars().all(|c| c.is_ascii()));
assert!(!"ประเทศไทย中华Việt Nam".chars().all(|c| c.is_ascii()));
assert!(!"ประเทศไทย中华ệ ".chars().any(|c| c.is_ascii()));
}
#[test]
fn test_to_ascii_uppercase() {
assert_eq!("url()URL()uRl()ürl".to_ascii_uppercase(), "URL()URL()URL()üRL");
assert_eq!("hıKß".to_ascii_uppercase(), "HıKß");
for i in 0..501 {
let upper = if 'a' as u32 <= i && i <= 'z' as u32 { i + 'A' as u32 - 'a' as u32 }
else { i };
assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_uppercase(),
(from_u32(upper).unwrap()).to_string());
}
}
#[test]
fn test_to_ascii_lowercase() {
assert_eq!("url()URL()uRl()Ürl".to_ascii_lowercase(), "url()url()url()Ürl");
// Dotted capital I, Kelvin sign, Sharp S.
assert_eq!("HİKß".to_ascii_lowercase(), "hİKß");
for i in 0..501 {
let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 }
else { i };
assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_lowercase(),
(from_u32(lower).unwrap()).to_string());
}
}
#[test]
fn test_make_ascii_lower_case() {
macro_rules! test {
($from: expr, $to: expr) => {
{
let mut x = $from;
x.make_ascii_lowercase();
assert_eq!(x, $to);
}
}
}
test!(b'A', b'a');
test!(b'a', b'a');
test!(b'!', b'!');
test!('A', 'a');
test!('À', 'À');
test!('a', 'a');
test!('!', '!');
test!(b"H\xc3\x89".to_vec(), b"h\xc3\x89");
test!("HİKß".to_string(), "hİKß");
}
#[test]
fn test_make_ascii_upper_case() {
macro_rules! test {
($from: expr, $to: expr) => {
{
let mut x = $from;
x.make_ascii_uppercase();
assert_eq!(x, $to);
}
}
}
test!(b'a', b'A');
test!(b'A', b'A');
test!(b'!', b'!');
test!('a', 'A');
test!('à', 'à');
test!('A', 'A');
test!('!', '!');
test!(b"h\xc3\xa9".to_vec(), b"H\xc3\xa9");
test!("hıKß".to_string(), "HıKß");
let mut x = "Hello".to_string();
x[..3].make_ascii_uppercase(); // Test IndexMut on String.
assert_eq!(x, "HELlo")
}
#[test]
fn test_eq_ignore_ascii_case() {
assert!("url()URL()uRl()Ürl".eq_ignore_ascii_case("url()url()url()Ürl"));
assert!(!"Ürl".eq_ignore_ascii_case("ürl"));
// Dotted capital I, Kelvin sign, Sharp S.
assert!("HİKß".eq_ignore_ascii_case("hİKß"));
assert!(!"İ".eq_ignore_ascii_case("i"));
assert!(!"K".eq_ignore_ascii_case("k"));
assert!(!"ß".eq_ignore_ascii_case("s"));
for i in 0..501 {
let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 }
else { i };
assert!((from_u32(i).unwrap()).to_string().eq_ignore_ascii_case(
&from_u32(lower).unwrap().to_string()));
}
}
#[test]
fn inference_works() {
let x = "a".to_string();
x.eq_ignore_ascii_case("A");
}
// Shorthands used by the is_ascii_* tests.
macro_rules! assert_all {
($what:ident, $($str:tt),+) => {{
$(
for b in $str.chars() {
if !b.$what() {
panic!("expected {}({}) but it isn't",
stringify!($what), b);
}
}
for b in $str.as_bytes().iter() {
if !b.$what() {
panic!("expected {}(0x{:02x})) but it isn't",
stringify!($what), b);
}
}
assert!($str.$what());
assert!($str.as_bytes().$what());
)+
}};
($what:ident, $($str:tt),+,) => (assert_all!($what,$($str),+))
}
macro_rules! assert_none {
($what:ident, $($str:tt),+) => {{
$(
for b in $str.chars() {
if b.$what() {
panic!("expected not-{}({}) but it is",
stringify!($what), b);
}
}
for b in $str.as_bytes().iter() {
if b.$what() {
panic!("expected not-{}(0x{:02x})) but it is",
stringify!($what), b);
}
}
)*
}};
($what:ident, $($str:tt),+,) => (assert_none!($what,$($str),+))
}
#[test]
fn test_is_ascii_alphabetic() {
assert_all!(is_ascii_alphabetic,
"",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
);
assert_none!(is_ascii_alphabetic,
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_uppercase() {
assert_all!(is_ascii_uppercase,
"",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
);
assert_none!(is_ascii_uppercase,
"abcdefghijklmnopqrstuvwxyz",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_lowercase() {
assert_all!(is_ascii_lowercase,
"abcdefghijklmnopqrstuvwxyz",
);
assert_none!(is_ascii_lowercase,
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_alphanumeric() {
assert_all!(is_ascii_alphanumeric,
"",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
);
assert_none!(is_ascii_alphanumeric,
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_digit() {
assert_all!(is_ascii_digit,
"",
"0123456789",
);
assert_none!(is_ascii_digit,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_hexdigit() {
assert_all!(is_ascii_hexdigit,
"",
"0123456789",
"abcdefABCDEF",
);
assert_none!(is_ascii_hexdigit,
"ghijklmnopqrstuvwxyz",
"GHIJKLMNOQPRSTUVWXYZ",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_punctuation() {
assert_all!(is_ascii_punctuation,
"",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
);
assert_none!(is_ascii_punctuation,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_graphic() {
assert_all!(is_ascii_graphic,
"",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
);
assert_none!(is_ascii_graphic,
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_whitespace() {
assert_all!(is_ascii_whitespace,
"",
" \t\n\x0c\r",
);
assert_none!(is_ascii_whitespace,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x0b\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_control() {
assert_all!(is_ascii_control,
"",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
assert_none!(is_ascii_control,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" ",
);
}
}

349
src/libcore/tests/ascii.rs Normal file
View File

@ -0,0 +1,349 @@
use char::from_u32;
#[test]
fn test_is_ascii() {
assert!(b"".is_ascii());
assert!(b"banana\0\x7F".is_ascii());
assert!(b"banana\0\x7F".iter().all(|b| b.is_ascii()));
assert!(!b"Vi\xe1\xbb\x87t Nam".is_ascii());
assert!(!b"Vi\xe1\xbb\x87t Nam".iter().all(|b| b.is_ascii()));
assert!(!b"\xe1\xbb\x87".iter().any(|b| b.is_ascii()));
assert!("".is_ascii());
assert!("banana\0\u{7F}".is_ascii());
assert!("banana\0\u{7F}".chars().all(|c| c.is_ascii()));
assert!(!"ประเทศไทย中华Việt Nam".chars().all(|c| c.is_ascii()));
assert!(!"ประเทศไทย中华ệ ".chars().any(|c| c.is_ascii()));
}
#[test]
fn test_to_ascii_uppercase() {
assert_eq!("url()URL()uRl()ürl".to_ascii_uppercase(), "URL()URL()URL()üRL");
assert_eq!("hıKß".to_ascii_uppercase(), "HıKß");
for i in 0..501 {
let upper = if 'a' as u32 <= i && i <= 'z' as u32 { i + 'A' as u32 - 'a' as u32 }
else { i };
assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_uppercase(),
(from_u32(upper).unwrap()).to_string());
}
}
#[test]
fn test_to_ascii_lowercase() {
assert_eq!("url()URL()uRl()Ürl".to_ascii_lowercase(), "url()url()url()Ürl");
// Dotted capital I, Kelvin sign, Sharp S.
assert_eq!("HİKß".to_ascii_lowercase(), "hİKß");
for i in 0..501 {
let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 }
else { i };
assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_lowercase(),
(from_u32(lower).unwrap()).to_string());
}
}
#[test]
fn test_make_ascii_lower_case() {
macro_rules! test {
($from: expr, $to: expr) => {
{
let mut x = $from;
x.make_ascii_lowercase();
assert_eq!(x, $to);
}
}
}
test!(b'A', b'a');
test!(b'a', b'a');
test!(b'!', b'!');
test!('A', 'a');
test!('À', 'À');
test!('a', 'a');
test!('!', '!');
test!(b"H\xc3\x89".to_vec(), b"h\xc3\x89");
test!("HİKß".to_string(), "hİKß");
}
#[test]
fn test_make_ascii_upper_case() {
macro_rules! test {
($from: expr, $to: expr) => {
{
let mut x = $from;
x.make_ascii_uppercase();
assert_eq!(x, $to);
}
}
}
test!(b'a', b'A');
test!(b'A', b'A');
test!(b'!', b'!');
test!('a', 'A');
test!('à', 'à');
test!('A', 'A');
test!('!', '!');
test!(b"h\xc3\xa9".to_vec(), b"H\xc3\xa9");
test!("hıKß".to_string(), "HıKß");
let mut x = "Hello".to_string();
x[..3].make_ascii_uppercase(); // Test IndexMut on String.
assert_eq!(x, "HELlo")
}
#[test]
fn test_eq_ignore_ascii_case() {
assert!("url()URL()uRl()Ürl".eq_ignore_ascii_case("url()url()url()Ürl"));
assert!(!"Ürl".eq_ignore_ascii_case("ürl"));
// Dotted capital I, Kelvin sign, Sharp S.
assert!("HİKß".eq_ignore_ascii_case("hİKß"));
assert!(!"İ".eq_ignore_ascii_case("i"));
assert!(!"K".eq_ignore_ascii_case("k"));
assert!(!"ß".eq_ignore_ascii_case("s"));
for i in 0..501 {
let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 }
else { i };
assert!((from_u32(i).unwrap()).to_string().eq_ignore_ascii_case(
&from_u32(lower).unwrap().to_string()));
}
}
#[test]
fn inference_works() {
let x = "a".to_string();
x.eq_ignore_ascii_case("A");
}
// Shorthands used by the is_ascii_* tests.
macro_rules! assert_all {
($what:ident, $($str:tt),+) => {{
$(
for b in $str.chars() {
if !b.$what() {
panic!("expected {}({}) but it isn't",
stringify!($what), b);
}
}
for b in $str.as_bytes().iter() {
if !b.$what() {
panic!("expected {}(0x{:02x})) but it isn't",
stringify!($what), b);
}
}
assert!($str.$what());
assert!($str.as_bytes().$what());
)+
}};
($what:ident, $($str:tt),+,) => (assert_all!($what,$($str),+))
}
macro_rules! assert_none {
($what:ident, $($str:tt),+) => {{
$(
for b in $str.chars() {
if b.$what() {
panic!("expected not-{}({}) but it is",
stringify!($what), b);
}
}
for b in $str.as_bytes().iter() {
if b.$what() {
panic!("expected not-{}(0x{:02x})) but it is",
stringify!($what), b);
}
}
)*
}};
($what:ident, $($str:tt),+,) => (assert_none!($what,$($str),+))
}
#[test]
fn test_is_ascii_alphabetic() {
assert_all!(is_ascii_alphabetic,
"",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
);
assert_none!(is_ascii_alphabetic,
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_uppercase() {
assert_all!(is_ascii_uppercase,
"",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
);
assert_none!(is_ascii_uppercase,
"abcdefghijklmnopqrstuvwxyz",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_lowercase() {
assert_all!(is_ascii_lowercase,
"abcdefghijklmnopqrstuvwxyz",
);
assert_none!(is_ascii_lowercase,
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_alphanumeric() {
assert_all!(is_ascii_alphanumeric,
"",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
);
assert_none!(is_ascii_alphanumeric,
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_digit() {
assert_all!(is_ascii_digit,
"",
"0123456789",
);
assert_none!(is_ascii_digit,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_hexdigit() {
assert_all!(is_ascii_hexdigit,
"",
"0123456789",
"abcdefABCDEF",
);
assert_none!(is_ascii_hexdigit,
"ghijklmnopqrstuvwxyz",
"GHIJKLMNOQPRSTUVWXYZ",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_punctuation() {
assert_all!(is_ascii_punctuation,
"",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
);
assert_none!(is_ascii_punctuation,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_graphic() {
assert_all!(is_ascii_graphic,
"",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
);
assert_none!(is_ascii_graphic,
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_whitespace() {
assert_all!(is_ascii_whitespace,
"",
" \t\n\x0c\r",
);
assert_none!(is_ascii_whitespace,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x0b\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_control() {
assert_all!(is_ascii_control,
"",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
assert_none!(is_ascii_control,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" ",
);
}

477
src/libstd/ascii.rs
View File

@ -30,6 +30,9 @@
use ops::Range;
use iter::FusedIterator;
#[stable(feature = "rust1", since = "1.0.0")]
pub use core::ascii::{EscapeDefault, escape_default};
/// Extension methods for ASCII-subset only operations.
///
/// Be aware that operations on seemingly non-ASCII characters can sometimes
@ -483,477 +486,3 @@ fn is_ascii_control(&self) -> bool {
self.bytes().all(|b| b.is_ascii_control())
}
}
/// An iterator over the escaped version of a byte.
///
/// This `struct` is created by the [`escape_default`] function. See its
/// documentation for more.
///
/// [`escape_default`]: fn.escape_default.html
#[stable(feature = "rust1", since = "1.0.0")]
pub struct EscapeDefault {
range: Range<usize>,
data: [u8; 4],
}
/// Returns an iterator that produces an escaped version of a `u8`.
///
/// The default is chosen with a bias toward producing literals that are
/// legal in a variety of languages, including C++11 and similar C-family
/// languages. The exact rules are:
///
/// - Tab, CR and LF are escaped as '\t', '\r' and '\n' respectively.
/// - Single-quote, double-quote and backslash chars are backslash-escaped.
/// - Any other chars in the range [0x20,0x7e] are not escaped.
/// - Any other chars are given hex escapes of the form '\xNN'.
/// - Unicode escapes are never generated by this function.
///
/// # Examples
///
/// ```
/// use std::ascii;
///
/// let escaped = ascii::escape_default(b'0').next().unwrap();
/// assert_eq!(b'0', escaped);
///
/// let mut escaped = ascii::escape_default(b'\t');
///
/// assert_eq!(b'\\', escaped.next().unwrap());
/// assert_eq!(b't', escaped.next().unwrap());
///
/// let mut escaped = ascii::escape_default(b'\r');
///
/// assert_eq!(b'\\', escaped.next().unwrap());
/// assert_eq!(b'r', escaped.next().unwrap());
///
/// let mut escaped = ascii::escape_default(b'\n');
///
/// assert_eq!(b'\\', escaped.next().unwrap());
/// assert_eq!(b'n', escaped.next().unwrap());
///
/// let mut escaped = ascii::escape_default(b'\'');
///
/// assert_eq!(b'\\', escaped.next().unwrap());
/// assert_eq!(b'\'', escaped.next().unwrap());
///
/// let mut escaped = ascii::escape_default(b'"');
///
/// assert_eq!(b'\\', escaped.next().unwrap());
/// assert_eq!(b'"', escaped.next().unwrap());
///
/// let mut escaped = ascii::escape_default(b'\\');
///
/// assert_eq!(b'\\', escaped.next().unwrap());
/// assert_eq!(b'\\', escaped.next().unwrap());
///
/// let mut escaped = ascii::escape_default(b'\x9d');
///
/// assert_eq!(b'\\', escaped.next().unwrap());
/// assert_eq!(b'x', escaped.next().unwrap());
/// assert_eq!(b'9', escaped.next().unwrap());
/// assert_eq!(b'd', escaped.next().unwrap());
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn escape_default(c: u8) -> EscapeDefault {
let (data, len) = match c {
b'\t' => ([b'\\', b't', 0, 0], 2),
b'\r' => ([b'\\', b'r', 0, 0], 2),
b'\n' => ([b'\\', b'n', 0, 0], 2),
b'\\' => ([b'\\', b'\\', 0, 0], 2),
b'\'' => ([b'\\', b'\'', 0, 0], 2),
b'"' => ([b'\\', b'"', 0, 0], 2),
b'\x20' ... b'\x7e' => ([c, 0, 0, 0], 1),
_ => ([b'\\', b'x', hexify(c >> 4), hexify(c & 0xf)], 4),
};
return EscapeDefault { range: (0.. len), data: data };
fn hexify(b: u8) -> u8 {
match b {
0 ... 9 => b'0' + b,
_ => b'a' + b - 10,
}
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl Iterator for EscapeDefault {
type Item = u8;
fn next(&mut self) -> Option<u8> { self.range.next().map(|i| self.data[i]) }
fn size_hint(&self) -> (usize, Option<usize>) { self.range.size_hint() }
}
#[stable(feature = "rust1", since = "1.0.0")]
impl DoubleEndedIterator for EscapeDefault {
fn next_back(&mut self) -> Option<u8> {
self.range.next_back().map(|i| self.data[i])
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl ExactSizeIterator for EscapeDefault {}
#[unstable(feature = "fused", issue = "35602")]
impl FusedIterator for EscapeDefault {}
#[stable(feature = "std_debug", since = "1.16.0")]
impl fmt::Debug for EscapeDefault {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.pad("EscapeDefault { .. }")
}
}
#[cfg(test)]
mod tests {
//! Note that most of these tests are not testing `AsciiExt` methods, but
//! test inherent ascii methods of char, u8, str and [u8]. `AsciiExt` is
//! just using those methods, though.
use super::AsciiExt;
use char::from_u32;
#[test]
fn test_is_ascii() {
assert!(b"".is_ascii());
assert!(b"banana\0\x7F".is_ascii());
assert!(b"banana\0\x7F".iter().all(|b| b.is_ascii()));
assert!(!b"Vi\xe1\xbb\x87t Nam".is_ascii());
assert!(!b"Vi\xe1\xbb\x87t Nam".iter().all(|b| b.is_ascii()));
assert!(!b"\xe1\xbb\x87".iter().any(|b| b.is_ascii()));
assert!("".is_ascii());
assert!("banana\0\u{7F}".is_ascii());
assert!("banana\0\u{7F}".chars().all(|c| c.is_ascii()));
assert!(!"ประเทศไทย中华Việt Nam".chars().all(|c| c.is_ascii()));
assert!(!"ประเทศไทย中华ệ ".chars().any(|c| c.is_ascii()));
}
#[test]
fn test_to_ascii_uppercase() {
assert_eq!("url()URL()uRl()ürl".to_ascii_uppercase(), "URL()URL()URL()üRL");
assert_eq!("hıKß".to_ascii_uppercase(), "HıKß");
for i in 0..501 {
let upper = if 'a' as u32 <= i && i <= 'z' as u32 { i + 'A' as u32 - 'a' as u32 }
else { i };
assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_uppercase(),
(from_u32(upper).unwrap()).to_string());
}
}
#[test]
fn test_to_ascii_lowercase() {
assert_eq!("url()URL()uRl()Ürl".to_ascii_lowercase(), "url()url()url()Ürl");
// Dotted capital I, Kelvin sign, Sharp S.
assert_eq!("HİKß".to_ascii_lowercase(), "hİKß");
for i in 0..501 {
let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 }
else { i };
assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_lowercase(),
(from_u32(lower).unwrap()).to_string());
}
}
#[test]
fn test_make_ascii_lower_case() {
macro_rules! test {
($from: expr, $to: expr) => {
{
let mut x = $from;
x.make_ascii_lowercase();
assert_eq!(x, $to);
}
}
}
test!(b'A', b'a');
test!(b'a', b'a');
test!(b'!', b'!');
test!('A', 'a');
test!('À', 'À');
test!('a', 'a');
test!('!', '!');
test!(b"H\xc3\x89".to_vec(), b"h\xc3\x89");
test!("HİKß".to_string(), "hİKß");
}
#[test]
fn test_make_ascii_upper_case() {
macro_rules! test {
($from: expr, $to: expr) => {
{
let mut x = $from;
x.make_ascii_uppercase();
assert_eq!(x, $to);
}
}
}
test!(b'a', b'A');
test!(b'A', b'A');
test!(b'!', b'!');
test!('a', 'A');
test!('à', 'à');
test!('A', 'A');
test!('!', '!');
test!(b"h\xc3\xa9".to_vec(), b"H\xc3\xa9");
test!("hıKß".to_string(), "HıKß");
let mut x = "Hello".to_string();
x[..3].make_ascii_uppercase(); // Test IndexMut on String.
assert_eq!(x, "HELlo")
}
#[test]
fn test_eq_ignore_ascii_case() {
assert!("url()URL()uRl()Ürl".eq_ignore_ascii_case("url()url()url()Ürl"));
assert!(!"Ürl".eq_ignore_ascii_case("ürl"));
// Dotted capital I, Kelvin sign, Sharp S.
assert!("HİKß".eq_ignore_ascii_case("hİKß"));
assert!(!"İ".eq_ignore_ascii_case("i"));
assert!(!"K".eq_ignore_ascii_case("k"));
assert!(!"ß".eq_ignore_ascii_case("s"));
for i in 0..501 {
let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 }
else { i };
assert!((from_u32(i).unwrap()).to_string().eq_ignore_ascii_case(
&from_u32(lower).unwrap().to_string()));
}
}
#[test]
fn inference_works() {
let x = "a".to_string();
x.eq_ignore_ascii_case("A");
}
// Shorthands used by the is_ascii_* tests.
macro_rules! assert_all {
($what:ident, $($str:tt),+) => {{
$(
for b in $str.chars() {
if !b.$what() {
panic!("expected {}({}) but it isn't",
stringify!($what), b);
}
}
for b in $str.as_bytes().iter() {
if !b.$what() {
panic!("expected {}(0x{:02x})) but it isn't",
stringify!($what), b);
}
}
assert!($str.$what());
assert!($str.as_bytes().$what());
)+
}};
($what:ident, $($str:tt),+,) => (assert_all!($what,$($str),+))
}
macro_rules! assert_none {
($what:ident, $($str:tt),+) => {{
$(
for b in $str.chars() {
if b.$what() {
panic!("expected not-{}({}) but it is",
stringify!($what), b);
}
}
for b in $str.as_bytes().iter() {
if b.$what() {
panic!("expected not-{}(0x{:02x})) but it is",
stringify!($what), b);
}
}
)*
}};
($what:ident, $($str:tt),+,) => (assert_none!($what,$($str),+))
}
#[test]
fn test_is_ascii_alphabetic() {
assert_all!(is_ascii_alphabetic,
"",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
);
assert_none!(is_ascii_alphabetic,
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_uppercase() {
assert_all!(is_ascii_uppercase,
"",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
);
assert_none!(is_ascii_uppercase,
"abcdefghijklmnopqrstuvwxyz",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_lowercase() {
assert_all!(is_ascii_lowercase,
"abcdefghijklmnopqrstuvwxyz",
);
assert_none!(is_ascii_lowercase,
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_alphanumeric() {
assert_all!(is_ascii_alphanumeric,
"",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
);
assert_none!(is_ascii_alphanumeric,
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_digit() {
assert_all!(is_ascii_digit,
"",
"0123456789",
);
assert_none!(is_ascii_digit,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_hexdigit() {
assert_all!(is_ascii_hexdigit,
"",
"0123456789",
"abcdefABCDEF",
);
assert_none!(is_ascii_hexdigit,
"ghijklmnopqrstuvwxyz",
"GHIJKLMNOQPRSTUVWXYZ",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_punctuation() {
assert_all!(is_ascii_punctuation,
"",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
);
assert_none!(is_ascii_punctuation,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_graphic() {
assert_all!(is_ascii_graphic,
"",
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
);
assert_none!(is_ascii_graphic,
" \t\n\x0c\r",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_whitespace() {
assert_all!(is_ascii_whitespace,
"",
" \t\n\x0c\r",
);
assert_none!(is_ascii_whitespace,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x0b\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
}
#[test]
fn test_is_ascii_control() {
assert_all!(is_ascii_control,
"",
"\x00\x01\x02\x03\x04\x05\x06\x07",
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
"\x10\x11\x12\x13\x14\x15\x16\x17",
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
"\x7f",
);
assert_none!(is_ascii_control,
"abcdefghijklmnopqrstuvwxyz",
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
"0123456789",
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
" ",
);
}
}