singularize function

String singularize(String word)

Minimal English singularization used for resource parameter names (posts → post, categories → category, people → people).

Implementation

String singularize(String word) {
  if (word.endsWith('ies') && word.length > 3) {
    return '${word.substring(0, word.length - 3)}y';
  }
  if (word.endsWith('ses') ||
      word.endsWith('xes') ||
      word.endsWith('ches') ||
      word.endsWith('shes')) {
    return word.substring(0, word.length - 2);
  }
  if (word.endsWith('us') || word.endsWith('ss') || word.endsWith('is')) {
    return word;
  }
  if (word.endsWith('s') && word.length > 1) {
    return word.substring(0, word.length - 1);
  }
  return word;
}