One of my favorite utilities when working with 1. C#, 2. ORM, 3. DBA has been and will always be Inflector. It takes any string input and changes ist’s form. For instance it can make your "some_table" in the database become "SomeTable" in C# by calling the right method. This is not my work, I take no credit for it. It originally belongs to some Andrew Peters guy. He seems to have vanished from the surface. It can still be found in a various places but this is where I store “my” stuff so:)
public static class Inflector
{
#region Default Rules
static Inflector() {
AddPlural("$", "s");
AddPlural("s$", "s");
AddPlural("(ax|test)is$", "$1es");
AddPlural("(octop|vir)us$", "$1i");
AddPlural("(alias|status)$", "$1es");
AddPlural("(bu)s$", "$1ses");
AddPlural("(buffal|tomat)o$", "$1oes");
AddPlural("([ti])um$", "$1a");
AddPlural("sis$", "ses");
AddPlural("(?:([^f])fe|([lr])f)$", "$1$2ves");
AddPlural("(hive)$", "$1s");
AddPlural("([^aeiouy]|qu)y$", "$1ies");
AddPlural("(x|ch|ss|sh)$", "$1es");
AddPlural("(matr|vert|ind)ix|ex$", "$1ices");
AddPlural("([m|l])ouse$", "$1ice");
AddPlural("^(ox)$", "$1en");
AddPlural("(quiz)$", "$1zes");
AddSingular("s$", "");
AddSingular("(n)ews$", "$1ews");
AddSingular("([ti])a$", "$1um");
AddSingular("((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)ses$", "$1$2sis");
AddSingular("(^analy)ses$", "$1sis");
AddSingular("([^f])ves$", "$1fe");
AddSingular("(hive)s$", "$1");
AddSingular("(tive)s$", "$1");
AddSingular("([lr])ves$", "$1f");
AddSingular("([^aeiouy]|qu)ies$", "$1y");
AddSingular("(s)eries$", "$1eries");
AddSingular("(m)ovies$", "$1ovie");
AddSingular("(x|ch|ss|sh)es$", "$1");
AddSingular("([m|l])ice$", "$1ouse");
AddSingular("(bus)es$", "$1");
AddSingular("(o)es$", "$1");
AddSingular("(shoe)s$", "$1");
AddSingular("(cris|ax|test)es$", "$1is");
AddSingular("(octop|vir)i$", "$1us");
AddSingular("(alias|status)es$", "$1");
AddSingular("^(ox)en", "$1");
AddSingular("(vert|ind)ices$", "$1ex");
AddSingular("(matr)ices$", "$1ix");
AddSingular("(quiz)zes$", "$1");
AddIrregular("person", "people");
AddIrregular("man", "men");
AddIrregular("child", "children");
AddIrregular("sex", "sexes");
AddIrregular("move", "moves");
AddUncountable("equipment");
AddUncountable("information");
AddUncountable("rice");
AddUncountable("money");
AddUncountable("species");
AddUncountable("series");
AddUncountable("fish");
AddUncountable("sheep");
}
#endregion
private static readonly List<Rule> _plurals = new List<Rule>();
private static readonly List<Rule> _singulars = new List<Rule>();
private static readonly List<string> _uncountables = new List<string>();
internal static void AddIrregular(string singular, string plural) {
AddPlural("(" + singular[0] + ")" + singular.Substring(1) + "$", "$1" + plural.Substring(1));
AddSingular("(" + plural[0] + ")" + plural.Substring(1) + "$", "$1" + singular.Substring(1));
}
internal static void AddUncountable(string word) {
_uncountables.Add(word.ToLower());
}
internal static void AddPlural(string rule, string replacement) {
_plurals.Add(new Rule(rule, replacement));
}
internal static void AddSingular(string rule, string replacement) {
_singulars.Add(new Rule(rule, replacement));
}
public static string Pluralize(string word) {
return ApplyRules(_plurals, word);
}
public static string Singularize(string word) {
return ApplyRules(_singulars, word);
}
private static string ApplyRules(List<Rule> rules, string word) {
string result = word;
if (!_uncountables.Contains(word.ToLower())) {
for (int i = rules.Count - 1; i >= 0; i--) {
if ((result = rules[i].Apply(word)) != null) {
break;
}
}
}
return result;
}
public static string Titleize(string word) {
return Regex.Replace(Humanize(Underscore(word)), @"\b([a-z])",
match => match.Captures[0].Value.ToUpper());
}
public static string Humanize(string lowercaseAndUnderscoredWord) {
return Capitalize(Regex.Replace(lowercaseAndUnderscoredWord, @"_", " "));
}
public static string Pascalize(string lowercaseAndUnderscoredWord) {
return Regex.Replace(lowercaseAndUnderscoredWord, "(?:^|_)(.)",
match => match.Groups[1].Value.ToUpper());
}
public static string Camelize(string lowercaseAndUnderscoredWord) {
return Uncapitalize(Pascalize(lowercaseAndUnderscoredWord));
}
public static string Underscore(string pascalCasedWord) {
return Regex.Replace(
Regex.Replace(
Regex.Replace(pascalCasedWord, @"([A-Z]+)([A-Z][a-z])", "$1_$2"), @"([a-z\d])([A-Z])",
"$1_$2"), @"[-\s]", "_").ToLower();
}
public static string Capitalize(string word) {
return word.Substring(0, 1).ToUpper() + word.Substring(1).ToLower();
}
public static string Uncapitalize(string word) {
return word.Substring(0, 1).ToLower() + word.Substring(1);
}
public static string Ordinalize(string number) {
int n = int.Parse(number);
int nMod100 = n%100;
if (nMod100 >= 11 && nMod100 <= 13) {
return number + "th";
}
switch (n%10) {
case 1:
return number + "st";
case 2:
return number + "nd";
case 3:
return number + "rd";
default:
return number + "th";
}
}
public static string Dasherize(string underscoredWord) {
return underscoredWord.Replace('_', '-');
}
#region Nested type: Rule
private class Rule
{
private readonly Regex _regex;
private readonly string _replacement;
public Rule(string pattern, string replacement) {
_regex = new Regex(pattern, RegexOptions.IgnoreCase);
_replacement = replacement;
}
public string Apply(string word) {
if (!_regex.IsMatch(word)) {
return null;
}
return _regex.Replace(word, _replacement);
}
}
#endregion
}
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