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Auto merge of #25912 - tshepang:better-str-examples, r=bluss

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bors 2015-06-07 20:59:20 +00:00
commit 8f9f2fe97e
1 changed files with 28 additions and 50 deletions
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78
src/libcollections/str.rs
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@ -640,17 +640,20 @@ impl str {
///
/// let v: Vec<&str> = "lion::tiger::leopard".split("::").collect();
/// assert_eq!(v, ["lion", "tiger", "leopard"]);
/// ```
///
/// More complex patterns with closures:
///
/// ```
/// let v: Vec<&str> = "abc1def2ghi".split(|c: char| c.is_numeric()).collect();
/// let v: Vec<&str> = "abc1def2ghi".split(char::is_numeric).collect();
/// assert_eq!(v, ["abc", "def", "ghi"]);
///
/// let v: Vec<&str> = "lionXtigerXleopard".split(char::is_uppercase).collect();
/// assert_eq!(v, ["lion", "tiger", "leopard"]);
/// ```
///
/// A more complex pattern, using a closure:
///
/// ```
/// let v: Vec<&str> = "abc1defXghi".split(|c| c == '1' || c == 'X').collect();
/// assert_eq!(v, ["abc", "def", "ghi"]);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn split<'a, P: Pattern<'a>>(&'a self, pat: P) -> Split<'a, P> {
core_str::StrExt::split(&self[..], pat)
@ -691,14 +694,11 @@ impl str {
/// assert_eq!(v, ["leopard", "tiger", "lion"]);
/// ```
///
/// More complex patterns with closures:
/// A more complex pattern, using a closure:
///
/// ```rust
/// let v: Vec<&str> = "abc1def2ghi".rsplit(|c: char| c.is_numeric()).collect();
/// ```
/// let v: Vec<&str> = "abc1defXghi".rsplit(|c| c == '1' || c == 'X').collect();
/// assert_eq!(v, ["ghi", "def", "abc"]);
///
/// let v: Vec<&str> = "lionXtigerXleopard".rsplit(char::is_uppercase).collect();
/// assert_eq!(v, ["leopard", "tiger", "lion"]);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn rsplit<'a, P: Pattern<'a>>(&'a self, pat: P) -> RSplit<'a, P>
@ -733,8 +733,6 @@ impl str {
///
/// # Examples
///
/// Simple patterns:
///
/// ```
/// let v: Vec<&str> = "A.B.".split_terminator('.').collect();
/// assert_eq!(v, ["A", "B"]);
@ -742,13 +740,6 @@ impl str {
/// let v: Vec<&str> = "A..B..".split_terminator(".").collect();
/// assert_eq!(v, ["A", "", "B", ""]);
/// ```
///
/// More complex patterns with closures:
///
/// ```
/// let v: Vec<&str> = "abc1def2ghi3".split_terminator(|c: char| c.is_numeric()).collect();
/// assert_eq!(v, ["abc", "def", "ghi"]);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn split_terminator<'a, P: Pattern<'a>>(&'a self, pat: P) -> SplitTerminator<'a, P> {
core_str::StrExt::split_terminator(&self[..], pat)
@ -778,8 +769,6 @@ impl str {
///
/// # Examples
///
/// Simple patterns:
///
/// ```
/// let v: Vec<&str> = "A.B.".rsplit_terminator('.').collect();
/// assert_eq!(v, ["B", "A"]);
@ -787,13 +776,6 @@ impl str {
/// let v: Vec<&str> = "A..B..".rsplit_terminator(".").collect();
/// assert_eq!(v, ["", "B", "", "A"]);
/// ```
///
/// More complex patterns with closures:
///
/// ```
/// let v: Vec<&str> = "abc1def2ghi3".rsplit_terminator(|c: char| c.is_numeric()).collect();
/// assert_eq!(v, ["ghi", "def", "abc"]);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn rsplit_terminator<'a, P: Pattern<'a>>(&'a self, pat: P) -> RSplitTerminator<'a, P>
where P::Searcher: ReverseSearcher<'a>
@ -837,11 +819,11 @@ impl str {
/// assert_eq!(v, [""]);
/// ```
///
/// More complex patterns with closures:
/// A more complex pattern, using a closure:
///
/// ```
/// let v: Vec<&str> = "abc1def2ghi".splitn(2, |c: char| c.is_numeric()).collect();
/// assert_eq!(v, ["abc", "def2ghi"]);
/// let v: Vec<&str> = "abc1defXghi".splitn(2, |c| c == '1' || c == 'X').collect();
/// assert_eq!(v, ["abc", "defXghi"]);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn splitn<'a, P: Pattern<'a>>(&'a self, count: usize, pat: P) -> SplitN<'a, P> {
@ -882,10 +864,10 @@ impl str {
/// assert_eq!(v, ["leopard", "lion::tiger"]);
/// ```
///
/// More complex patterns with closures:
/// A more complex pattern, using a closure:
///
/// ```
/// let v: Vec<&str> = "abc1def2ghi".rsplitn(2, |c: char| c.is_numeric()).collect();
/// let v: Vec<&str> = "abc1defXghi".rsplitn(2, |c| c == '1' || c == 'X').collect();
/// assert_eq!(v, ["ghi", "abc1def"]);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
@ -920,7 +902,7 @@ impl str {
/// let v: Vec<&str> = "abcXXXabcYYYabc".matches("abc").collect();
/// assert_eq!(v, ["abc", "abc", "abc"]);
///
/// let v: Vec<&str> = "1abc2abc3".matches(|c: char| c.is_numeric()).collect();
/// let v: Vec<&str> = "1abc2abc3".matches(char::is_numeric).collect();
/// assert_eq!(v, ["1", "2", "3"]);
/// ```
#[unstable(feature = "collections",
@ -953,7 +935,7 @@ impl str {
/// let v: Vec<&str> = "abcXXXabcYYYabc".rmatches("abc").collect();
/// assert_eq!(v, ["abc", "abc", "abc"]);
///
/// let v: Vec<&str> = "1abc2abc3".rmatches(|c: char| c.is_numeric()).collect();
/// let v: Vec<&str> = "1abc2abc3".rmatches(char::is_numeric).collect();
/// assert_eq!(v, ["3", "2", "1"]);
/// ```
#[unstable(feature = "collections",
@ -1199,15 +1181,16 @@ impl str {
///
/// ```
/// assert_eq!("11foo1bar11".trim_matches('1'), "foo1bar");
/// assert_eq!("123foo1bar123".trim_matches(char::is_numeric), "foo1bar");
///
/// let x: &[_] = &['1', '2'];
/// assert_eq!("12foo1bar12".trim_matches(x), "foo1bar");
/// ```
///
/// More complex patterns with closures:
/// A more complex pattern, using a closure:
///
/// ```
/// assert_eq!("123foo1bar123".trim_matches(|c: char| c.is_numeric()), "foo1bar");
/// assert_eq!("1foo1barXX".trim_matches(|c| c == '1' || c == 'X'), "foo1bar");
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn trim_matches<'a, P: Pattern<'a>>(&'a self, pat: P) -> &'a str
@ -1224,20 +1207,13 @@ impl str {
///
/// # Examples
///
/// Simple patterns:
///
/// ```
/// assert_eq!("11foo1bar11".trim_left_matches('1'), "foo1bar11");
/// assert_eq!("123foo1bar123".trim_left_matches(char::is_numeric), "foo1bar123");
///
/// let x: &[_] = &['1', '2'];
/// assert_eq!("12foo1bar12".trim_left_matches(x), "foo1bar12");
/// ```
///
/// More complex patterns with closures:
///
/// ```
/// assert_eq!("123foo1bar123".trim_left_matches(|c: char| c.is_numeric()), "foo1bar123");
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn trim_left_matches<'a, P: Pattern<'a>>(&'a self, pat: P) -> &'a str {
core_str::StrExt::trim_left_matches(&self[..], pat)
@ -1255,14 +1231,16 @@ impl str {
///
/// ```
/// assert_eq!("11foo1bar11".trim_right_matches('1'), "11foo1bar");
/// assert_eq!("123foo1bar123".trim_right_matches(char::is_numeric), "123foo1bar");
///
/// let x: &[_] = &['1', '2'];
/// assert_eq!("12foo1bar12".trim_right_matches(x), "12foo1bar");
/// ```
///
/// More complex patterns with closures:
/// A more complex pattern, using a closure:
///
/// ```
/// assert_eq!("123foo1bar123".trim_right_matches(|c: char| c.is_numeric()), "123foo1bar");
/// assert_eq!("1fooX".trim_left_matches(|c| c == '1' || c == 'X'), "fooX");
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn trim_right_matches<'a, P: Pattern<'a>>(&'a self, pat: P) -> &'a str
@ -1499,7 +1477,7 @@ impl str {
/// ```
/// let s = "Löwe 老虎 Léopard";
///
/// assert_eq!(s.find(|c: char| c.is_whitespace()), Some(5));
/// assert_eq!(s.find(char::is_whitespace), Some(5));
/// assert_eq!(s.find(char::is_lowercase), Some(1));
/// ```
///
@ -1541,7 +1519,7 @@ impl str {
/// ```
/// let s = "Löwe 老虎 Léopard";
///
/// assert_eq!(s.rfind(|c: char| c.is_whitespace()), Some(12));
/// assert_eq!(s.rfind(char::is_whitespace), Some(12));
/// assert_eq!(s.rfind(char::is_lowercase), Some(20));
/// ```
///