#!/usr/bin/env python # -*- coding: utf-8 -*- # Copyright (c) 2006 Bermi Ferrer Martinez # info at bermi dot org # See the end of this file for the free software, open source license (BSD-style). import re from Base import Base class Spanish (Base): ''' Inflector for pluralize and singularize Spanish nouns. ''' def pluralize(self, word) : '''Pluralizes Spanish nouns.''' rules = [ ['(?i)([aeiou])x$', '\\1x'], # This could fail if the word is oxytone. ['(?i)([áéíóú])([ns])$', '|1\\2es'], ['(?i)(^[bcdfghjklmnñpqrstvwxyz]*)an$', '\\1anes'], # clan->clanes ['(?i)([áéíóú])s$', '|1ses'], ['(?i)(^[bcdfghjklmnñpqrstvwxyz]*)([aeiou])([ns])$', '\\1\\2\\3es'], # tren->trenes ['(?i)([aeiouáéó])$', '\\1s'], # casa->casas, padre->padres, papá->papás ['(?i)([aeiou])s$', '\\1s'], # atlas->atlas, virus->virus, etc. ['(?i)([éí])(s)$', '|1\\2es'], # inglés->ingleses ['(?i)z$', 'ces'], # luz->luces ['(?i)([íú])$', '\\1es'], # ceutí->ceutíes, tabú->tabúes ['(?i)(ng|[wckgtp])$', '\\1s'], # Anglicismos como puenting, frac, crack, show (En que casos podría fallar esto?) ['(?i)$', 'es'] # ELSE +es (v.g. árbol->árboles) ] uncountable_words = ['tijeras','gafas', 'vacaciones','víveres','déficit'] ''' In fact these words have no singular form: you cannot say neither "una gafa" nor "un vívere". So we should change the variable name to onlyplural or something alike.''' irregular_words = { 'país' : 'países', 'champú' : 'champús', 'jersey' : 'jerséis', 'carácter' : 'caracteres', 'espécimen' : 'especímenes', 'menú' : 'menús', 'régimen' : 'regímenes', 'curriculum' : 'currículos', 'ultimátum' : 'ultimatos', 'memorándum' : 'memorandos', 'referéndum' : 'referendos' } lower_cased_word = word.lower(); for uncountable_word in uncountable_words: if lower_cased_word[-1*len(uncountable_word):] == uncountable_word : return word for irregular in irregular_words.keys(): match = re.search('(?i)('+irregular+')$',word, re.IGNORECASE) if match: return re.sub('(?i)'+irregular+'$', match.expand('\\1')[0]+irregular_words[irregular][1:], word) for rule in range(len(rules)): match = re.search(rules[rule][0], word, re.IGNORECASE) if match : groups = match.groups() replacement = rules[rule][1] if re.match('\|', replacement) : for k in range(1, len(groups)) : replacement = replacement.replace('|'+str(k), self.string_replace(groups[k-1], 'ÁÉÍÓÚáéíóú', 'AEIOUaeiou')) result = re.sub(rules[rule][0], replacement, word) # Esto acentua los sustantivos que al pluralizarse se convierten en esdrújulos como esmóquines, jóvenes... match = re.search('(?i)([aeiou]).{1,3}([aeiou])nes$',result) if match and len(match.groups()) > 1 and not re.search('(?i)[áéíóú]', word) : result = result.replace(match.group(0), self.string_replace(match.group(1), 'AEIOUaeiou', 'ÁÉÍÓÚáéíóú') + match.group(0)[1:]) return result return word def singularize (self, word) : '''Singularizes Spanish nouns.''' rules = [ ['(?i)^([bcdfghjklmnñpqrstvwxyz]*)([aeiou])([ns])es$', '\\1\\2\\3'], ['(?i)([aeiou])([ns])es$', '~1\\2'], ['(?i)oides$', 'oide'], # androides->androide ['(?i)(ces)$/i', 'z'], ['(?i)(sis|tis|xis)+$', '\\1'], # crisis, apendicitis, praxis ['(?i)(é)s$', '\\1'], # bebés->bebé ['(?i)([^e])s$', '\\1'], # casas->casa ['(?i)([bcdfghjklmnñprstvwxyz]{2,}e)s$', '\\1'], # cofres->cofre ['(?i)([ghñpv]e)s$', '\\1'], # 24-01 llaves->llave ['(?i)es$', ''] # ELSE remove _es_ monitores->monitor ]; uncountable_words = ['paraguas','tijeras', 'gafas', 'vacaciones', 'víveres','lunes','martes','miércoles','jueves','viernes','cumpleaños','virus','atlas','sms'] irregular_words = { 'jersey':'jerséis', 'espécimen':'especímenes', 'carácter':'caracteres', 'régimen':'regímenes', 'menú':'menús', 'régimen':'regímenes', 'curriculum' : 'currículos', 'ultimátum' : 'ultimatos', 'memorándum' : 'memorandos', 'referéndum' : 'referendos', 'sándwich' : 'sándwiches' } lower_cased_word = word.lower(); for uncountable_word in uncountable_words: if lower_cased_word[-1*len(uncountable_word):] == uncountable_word : return word for irregular in irregular_words.keys(): match = re.search('('+irregular+')$',word, re.IGNORECASE) if match: return re.sub('(?i)'+irregular+'$', match.expand('\\1')[0]+irregular_words[irregular][1:], word) for rule in range(len(rules)): match = re.search(rules[rule][0], word, re.IGNORECASE) if match : groups = match.groups() replacement = rules[rule][1] if re.match('~', replacement) : for k in range(1, len(groups)) : replacement = replacement.replace('~'+str(k), self.string_replace(groups[k-1], 'AEIOUaeiou', 'ÁÉÍÓÚáéíóú')) result = re.sub(rules[rule][0], replacement, word) # Esta es una posible solución para el problema de dobles acentos. Un poco guarrillo pero funciona match = re.search('(?i)([áéíóú]).*([áéíóú])',result) if match and len(match.groups()) > 1 and not re.search('(?i)[áéíóú]', word) : result = self.string_replace(result, 'ÁÉÍÓÚáéíóú', 'AEIOUaeiou') return result return word # Copyright (c) 2006 Bermi Ferrer Martinez # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software to deal in this software without restriction, including # without limitation the rights to use, copy, modify, merge, publish, # distribute, sublicense, and/or sell copies of this software, and to permit # persons to whom this software is furnished to do so, subject to the following # condition: # # THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THIS SOFTWARE OR THE USE OR OTHER DEALINGS IN # THIS SOFTWARE.