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Diffstat (limited to 'src/string/singularize/mod.rs')
| -rw-r--r-- | src/string/singularize/mod.rs | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/src/string/singularize/mod.rs b/src/string/singularize/mod.rs deleted file mode 100644 index 60e0b51..0000000 --- a/src/string/singularize/mod.rs +++ /dev/null @@ -1,189 +0,0 @@ -use regex::Regex; -use string::constants::UNACCONTABLE_WORDS; - -macro_rules! special_cases{ - ($s:ident, $($singular: expr => $plural:expr), *) => { - match &$s[..] { - $( - $singular => { - return $plural.to_owned(); - }, - )* - _ => () - } - } -} - - -/// Converts a `&str` to singularized `String` -/// -/// ``` -/// use inflector::string::singularize::to_singular; -/// let mock_string: &str = "foo_bars"; -/// let expected_string: String = "foo_bar".to_owned(); -/// let asserted_string: String = to_singular(mock_string); -/// assert!(asserted_string == expected_string); -/// -/// ``` -/// ``` -/// use inflector::string::singularize::to_singular; -/// let mock_string: &str = "oxen"; -/// let expected_string: String = "ox".to_owned(); -/// let asserted_string: String = to_singular(mock_string); -/// assert!(asserted_string == expected_string); -/// -/// ``` -/// ``` -/// use inflector::string::singularize::to_singular; -/// let mock_string: &str = "crates"; -/// let expected_string: String = "crate".to_owned(); -/// let asserted_string: String = to_singular(mock_string); -/// assert!(asserted_string == expected_string); -/// -/// ``` -/// ``` -/// use inflector::string::singularize::to_singular; -/// let mock_string: &str = "oxen"; -/// let expected_string: String = "ox".to_owned(); -/// let asserted_string: String = to_singular(mock_string); -/// assert!(asserted_string == expected_string); -/// -/// ``` -/// ``` -/// use inflector::string::singularize::to_singular; -/// let mock_string: &str = "boxes"; -/// let expected_string: String = "box".to_owned(); -/// let asserted_string: String = to_singular(mock_string); -/// assert!(asserted_string == expected_string); -/// -/// ``` -/// ``` -/// use inflector::string::singularize::to_singular; -/// let mock_string: &str = "vengeance"; -/// let expected_string: String = "vengeance".to_owned(); -/// let asserted_string: String = to_singular(mock_string); -/// assert!(asserted_string == expected_string); -/// -/// ``` -/// ``` -/// use inflector::string::singularize::to_singular; -/// let mock_string: &str = "yoga"; -/// let expected_string: String = "yoga".to_owned(); -/// let asserted_string: String = to_singular(mock_string); -/// assert!(asserted_string == expected_string); -/// -/// ``` -/// -pub fn to_singular(non_singular_string: &str) -> String { - if UNACCONTABLE_WORDS.contains(&non_singular_string.as_ref()) { - non_singular_string.to_owned() - } else { - special_cases![non_singular_string, - "oxen" => "ox", - "boxes" => "box", - "men" => "man", - "women" => "woman", - "dice" => "die", - "yeses" => "yes", - "feet" => "foot", - "eaves" => "eave", - "geese" => "goose", - "teeth" => "tooth", - "quizzes" => "quiz" - ]; - for &(ref rule, replace) in RULES.iter().rev() { - if let Some(captures) = rule.captures(&non_singular_string) { - if let Some(c) = captures.get(1) { - let mut buf = String::new(); - captures.expand(&format!("{}{}", c.as_str(), replace), &mut buf); - return buf; - } - } - } - - format!("{}", non_singular_string) - } -} - -macro_rules! add_rule{ - ($r:ident, $rule:expr => $replace:expr) => { - $r.push((Regex::new($rule).unwrap(), $replace)); - } -} - -macro_rules! rules{ - ($r:ident; $($rule:expr => $replace:expr), *) => { - $( - add_rule!{$r, $rule => $replace} - )* - } -} - - -lazy_static!{ - static ref RULES: Vec<(Regex, &'static str)> = { - let mut r = Vec::with_capacity(27); - rules![r; - r"(\w*)s$" => "", - r"(\w*)(ss)$" => "$2", - r"(n)ews$" => "ews", - r"(\w*)(o)es$" => "", - r"(\w*)([ti])a$" => "um", - r"((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)(sis|ses)$" => "sis", - r"(^analy)(sis|ses)$" => "sis", - r"(\w*)([^f])ves$" => "fe", - r"(\w*)(hive)s$" => "", - r"(\w*)(tive)s$" => "", - r"(\w*)([lr])ves$" => "f", - r"(\w*([^aeiouy]|qu))ies$" => "y", - r"(s)eries$" => "eries", - r"(m)ovies$" => "ovie", - r"(\w*)(x|ch|ss|sh)es$" => "$2", - r"(m|l)ice$" => "ouse", - r"(bus)(es)?$" => "", - r"(shoe)s$" => "", - r"(cris|test)(is|es)$" => "is", - r"^(a)x[ie]s$" => "xis", - r"(octop|vir)(us|i)$" => "us", - r"(alias|status)(es)?$" => "", - r"^(ox)en" => "", - r"(vert|ind)ices$" => "ex", - r"(matr)ices$" => "ix", - r"(quiz)zes$" => "", - r"(database)s$" => "" - ]; - r - }; -} - -#[test] -fn singularize_ies_suffix() { - assert_eq!("reply", to_singular("replies")); - assert_eq!("lady", to_singular("ladies")); - assert_eq!("soliloquy", to_singular("soliloquies")); -} - -#[test] -fn singularize_ss_suffix() { - assert_eq!("glass", to_singular("glass")); - assert_eq!("access", to_singular("access")); - assert_eq!("glass", to_singular("glasses")); - assert_eq!("witch", to_singular("witches")); - assert_eq!("dish", to_singular("dishes")); -} - -#[test] -fn singularize_string_if_a_regex_will_match() { - let expected_string: String = "ox".to_owned(); - let asserted_string: String = to_singular("oxen"); - assert!(expected_string == asserted_string); - -} - -#[test] -fn singularize_string_returns_none_option_if_no_match() { - let expected_string: String = "bacon".to_owned(); - let asserted_string: String = to_singular("bacon"); - - assert!(expected_string == asserted_string); -} |