espagram/Espagram/SpanishConjugator.m
2012-11-08 18:38:18 +01:00

577 lines
27 KiB
Objective-C

//
// ConjugateRegularVerb.m
// Espagram
//
// Created by Abel Fokkinga on 8/29/12.
// Copyright (c) 2012 Abel Fokkinga. All rights reserved.
//
#import "SpanishConjugator.h"
@interface SpanishConjugator()
@property (nonatomic, strong) NSArray *simplePresentEtoIEstemChangersArray,
*simplePresentOtoUEstemChangersArray,
*simplePresentEtoIstemChangersArray;
@end
@implementation SpanishConjugator
@synthesize simplePresentEtoIEstemChangersArray = _simplePresentEtoIEstemChangersArray;
@synthesize simplePresentOtoUEstemChangersArray = _simplePresentOtoUEstemChangersArray;
@synthesize simplePresentEtoIstemChangersArray = _simplePresentEtoIstemChangersArray;
- (NSArray *) simplePresentEtoIEstemChangersArray{
if (_simplePresentEtoIEstemChangersArray == nil)
_simplePresentEtoIEstemChangersArray = [[NSArray alloc] initWithObjects:@"acertar", @"encender",@"advertir",@"entender",@"cerrar",@"fregar",@"comenzar",@"hervir",@"confesar",@"mentir",@"consentir",@"negar",@"convertir",@"pensar",@"defender",@"perder",@"empezar",@"preferir",@"querer",@"merendar",nil];
return _simplePresentEtoIEstemChangersArray;
}
- (NSArray *) simplePresentOtoUEstemChangersArray{
if (_simplePresentOtoUEstemChangersArray == nil)
_simplePresentOtoUEstemChangersArray = [[NSArray alloc] initWithObjects:@"almorzar",@"morir",@"aprobar",@"mostrar",@"colgar",@"mover",@"contar",@"probar",@"costar",@"recordar",@"devolver",@"resolver",@"volver",@"rogar",@"dormir",@"sonar",@"encontrar",@"soñar",@"envolver",@"tostar",@"morder",@"volar",@"poder",nil];
return _simplePresentOtoUEstemChangersArray;
}
- (NSArray *) simplePresentEtoIstemChangersArray{
if (_simplePresentEtoIstemChangersArray == nil)
_simplePresentEtoIstemChangersArray = [[NSArray alloc] initWithObjects:@"impedir",@"colegir",@"competir",@"medir",@"conseguir",@"pedir",@"corregir",@"perseguir",@"reír",@"despedir",@"repetir", @"seguir",@"freír",@"servir",@"gemir",@"sonreír",nil]; // not including elegir here as it also has an g to j change in first person singular
return _simplePresentEtoIstemChangersArray;
}
- (NSString *) getExit:(NSString *) verb {
NSLog(@"getExit start");
return [verb substringFromIndex:[verb length] - 2];
}
- (NSString *) getStem:(NSString *) verb {
NSLog(@"getStem start");
if ( [[self getExit:verb] isEqualToString:@"ír"] )
return [[verb substringToIndex:[verb length] -2] stringByAppendingString:@"i"];
NSLog(@"getStem end");
return [verb substringToIndex:[verb length] -2];
}
- (NSString *) getSimplePresentStemVerb:(NSString *) verb inPerson:(NSString *) person {
NSString * verbStem = [self getStem:verb];
NSLog(@"getSimplePresentStemVerb start.irregular");
// Bit irregular
if ( [person isEqualToString:@"FIRST_PERSON_SINGULAR"] ) {
if ( [verb rangeOfString:@"coger"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"cog"] withString:@"coj"];
if ( [verb rangeOfString:@"poner"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"pon"] withString:@"pong"];
if ( [verb isEqualToString:@"oír"] )
return @"oig";
// conducir, conocer etc.
if ( [[verb substringFromIndex:[verb length] - 3] isEqualToString:@"cer"] ||
[[verb substringFromIndex:[verb length] - 3] isEqualToString:@"cir"] )
return [[verbStem substringToIndex:[verbStem length] - 1] stringByAppendingString:@"zc"];
if ( [verb isEqualToString:@"oír"] )
return @"";
// appearance of g in the first person
if ( [verb isEqualToString:@"caer"] ) return @"caig";
if ( [verb isEqualToString:@"traer"] ) return @"traig";
if ( [verb rangeOfString:@"decir"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"dec"] withString:@"dig"];
if ( [verb rangeOfString:@"hacer"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"hac"] withString:@"hag"];
if ( [verb rangeOfString:@"poner"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"pon"] withString:@"pong"];
if ( [verb isEqualToString:@"salir"] ) return @"salg";
if ( [verb rangeOfString:@"tener"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verb rangeOfString:@"ten"] withString:@"teng"];
if ( [verb isEqualToString:@"valer"] ) return @"valg";
if ( [verb rangeOfString:@"venir"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"ven"] withString:@"veng"];
// other
if ( [verb isEqualToString:@"ver"] ) return @"ve";
// g -> j
if ( [verb isEqualToString:@"elegir"] ) return @"elij";
// g -> j
if ( [[verb substringFromIndex:[verb length] - 3] isEqualToString:@"gir"] )
return [[verb substringToIndex:[verb length] - 3] stringByAppendingString:@"j"];
// gu -> g
if ( [[verb substringFromIndex:[verb length] - 4] isEqualToString:@"guir"] )
return [[verb substringToIndex:[verb length] - 4] stringByAppendingString:@"g"];
}
if ( [person isEqualToString:@"FIRST_PERSON_SINGULAR"] ||
[person isEqualToString:@"SECOND_PERSON_SINGULAR"] ||
[person isEqualToString:@"THIRD_PERSON_SINGULAR"] ||
[person isEqualToString:@"THIRD_PERSON_PLURAL"]
) {
if ( [verb rangeOfString:@"decir"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"dec"] withString:@"dic"];
if ( [verb isEqualToString:@"oír"] )
return @"oy";
if ( [verb rangeOfString:@"tener"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verb rangeOfString:@"ten"] withString:@"tien"];
// Verbs adding an accent
if ( [verb isEqualToString:@"continuar"] ) return @"continú";
if ( [verb isEqualToString:@"enviar"] ) return @"enví";
if ( [verb isEqualToString:@"actuar"] ) return @"actú";
if ( [verb isEqualToString:@"graduar"] ) return @"gradú";
if ( [verb isEqualToString:@"confiar"] ) return @"confí";
if ( [verb isEqualToString:@"criar"] ) return @"crí";
if ( [verb isEqualToString:@"esquiar"] ) return @"esquí";
if ( [verb isEqualToString:@"vaciar"] ) return @"vací";
}
if ( [person isEqualToString:@"SECOND_PERSON_PLURAL"]) {
if ( [verb isEqualToString:@"oír"] )
return @"";
}
if ( [verb isEqualToString:@"elegir"] ) return @"elig";
// Regular
NSLog(@"getSimplePresentStemVerb start.regular");
if ( [person isEqualToString:@"FIRST_PERSON_SINGULAR"] ||
[person isEqualToString:@"SECOND_PERSON_SINGULAR"] ||
[person isEqualToString:@"THIRD_PERSON_SINGULAR"] ||
[person isEqualToString:@"THIRD_PERSON_PLURAL"]
) {
if ( [[self simplePresentEtoIEstemChangersArray] containsObject:verb] ) {
// Verb changes stem from e to ie
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"e"] withString:@"ie"];
}
if ( [[self simplePresentOtoUEstemChangersArray] containsObject:verb] ) {
// Verb changes stem from e to ie
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"o"] withString:@"ue"];
}
if ( [[self simplePresentEtoIstemChangersArray] containsObject:verb] ) {
// Verb changes stem from e to ie
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"e"] withString:@"i"];
}
// u -> ue
if ( [verb isEqualToString:@"jugar"]) return @"jueg";
// huir, construir
if ( [[verb substringFromIndex:[verb length] - 3] isEqualToString:@"uir"] &&
![[verb substringFromIndex:[verb length] - 3] isEqualToString:@"guir"])
return [[verb substringToIndex:[verb length] - 3] stringByAppendingString:@"uy"];
}
NSLog(@"getSimplePresentStemVerb end");
return verbStem;
}
- (NSString *) conjugateSimplePresentVerb:(NSString *) verb inPerson:(NSString *) person {
NSLog(@"conjugateRegularSimplePresentVerb Start");
NSString * verbStem = [self getSimplePresentStemVerb:verb inPerson:person];
NSString * verbExit = [self getExit:verb];
// very irregular
if ( [verb isEqualToString:@"haber"] ) return @"hay";
// other types of first person changes
if ( [person isEqualToString:@"FIRST_PERSON_SINGULAR"]) {
if ( [verb isEqualToString:@"caber"] ) return @"quepo";
if ( [verb isEqualToString:@"dar"] ) return @"doy";
if ( [verb isEqualToString:@"saber"] ) return @"";
}
// regular
if ( [person isEqualToString:@"FIRST_PERSON_SINGULAR"]) {
if ( [verb isEqualToString:@"estar"] ) return @"estoy";
if ( [verb isEqualToString:@"ser"] ) return @"soy";
if ( [verb isEqualToString:@"ir"] ) return @"voy";
if ( [verb isEqualToString:@"oler"] ) return @"huelo";
return [verbStem stringByAppendingString:@"o"];
}
if ( [person isEqualToString:@"SECOND_PERSON_SINGULAR"]) {
if ( [verb isEqualToString:@"estar"] ) return @"estás";
if ( [verb isEqualToString:@"ser"] ) return @"eres";
if ( [verb isEqualToString:@"ir"] ) return @"vas";
if ( [verb isEqualToString:@"oler"] ) return @"hueles";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"as"];
else return [verbStem stringByAppendingString:@"es"];
}
if ( [person isEqualToString:@"THIRD_PERSON_SINGULAR"]) {
if ( [verb isEqualToString:@"estar"] ) return @"está";
if ( [verb isEqualToString:@"ser"] ) return @"es";
if ( [verb isEqualToString:@"ir"] ) return @"va";
if ( [verb isEqualToString:@"oler"] ) return @"huele";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"a"];
else return [verbStem stringByAppendingString:@"e"];
}
if ( [person isEqualToString:@"FIRST_PERSON_PLURAL"]) {
if ( [verb isEqualToString:@"estar"] ) return @"estamos";
if ( [verb isEqualToString:@"ser"] ) return @"somos";
if ( [verb isEqualToString:@"ir"] ) return @"vamos";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"amos"];
if ( [@"er" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"emos"];
if ( [@"ir" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"imos"];
}
if ( [person isEqualToString:@"SECOND_PERSON_PLURAL"]) {
if ( [verb isEqualToString:@"estar"] ) return @"estáis";
if ( [verb isEqualToString:@"ser"] ) return @"sois";
if ( [verb isEqualToString:@"ir"] ) return @"vais";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"áis"];
if ( [@"er" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"éis"];
if ( [@"ir" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"ís"];
}
if ( [person isEqualToString:@"THIRD_PERSON_PLURAL"]) {
if ( [verb isEqualToString:@"estar"] ) return @"están";
if ( [verb isEqualToString:@"ser"] ) return @"son";
if ( [verb isEqualToString:@"ir"] ) return @"van";
if ( [verb isEqualToString:@"oler"] ) return @"huelen";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"an"];
else return [verbStem stringByAppendingString:@"en"];
}
return verb;
}
- (NSString *) conjugateSimplePastVerb:(NSString *) verb inPerson:(NSString *) person {
NSString * verbStem = [self getStem:verb];
NSString * verbExit = [self getExit:verb];
if ( [verb isEqualToString:@"andar"]) verbStem = @"anduv";
if ( [verb isEqualToString:@"conducir"]) verbStem = @"conduj";
if ( [verb isEqualToString:@"decir"]) verbStem = @"dij";
if ( [verb isEqualToString:@"estar"]) verbStem = @"estuv";
if ( [verb isEqualToString:@"haber"]) verbStem = @"hub";
if ( [verb isEqualToString:@"hacer"]) {
if ( [person isEqualToString:@"THIRD_PERSON_SINGULAR"]) verbStem = @"hiz";
else verbStem = @"hic";
}
if ( [verb isEqualToString:@"poder"]) verbStem = @"pud";
if ( [verb isEqualToString:@"poner"]) verbStem = @"pus";
if ( [verb isEqualToString:@"querer"]) verbStem = @"quis";
if ( [verb isEqualToString:@"saber"]) verbStem = @"sup";
if ( [verb isEqualToString:@"tener"]) verbStem = @"tuv";
if ( [verb isEqualToString:@"traducir"]) verbStem = @"traduj";
if ( [verb isEqualToString:@"traer"]) verbStem = @"traj";
if ( [verb isEqualToString:@"venir"]) verbStem = @"vin";
if ( [person isEqualToString:@"FIRST_PERSON_SINGULAR"]) {
// Irregular
if ( [verb isEqualToString:@"dar"]) return @"di";
if ( [verb isEqualToString:@"ir"] || [verb isEqualToString:@"ser"] ) return @"fui";
if ( [[verb substringFromIndex:[verb length] - 3] isEqualToString:@"car"] )
return [[verb substringFromIndex:[verb length] - 3] stringByAppendingString:@"qué"];
if ( [[verb substringFromIndex:[verb length] - 3] isEqualToString:@"gar"] )
return [[verb substringFromIndex:[verb length] - 3] stringByAppendingString:@"gué"];
if ( [[verb substringFromIndex:[verb length] - 3] isEqualToString:@"zar"] )
return [[verb substringFromIndex:[verb length] - 3] stringByAppendingString:@""];
if ( [verbStem isEqualToString:[self getStem:verb]]) {
// Regular
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"é"];
else return [verbStem stringByAppendingString:@"í"];
} else {
// Irregular
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"e"];
else return [verbStem stringByAppendingString:@"i"];
}
}
if ( [person isEqualToString:@"SECOND_PERSON_SINGULAR"]) {
// Irregular
if ( [verb isEqualToString:@"dar"]) return @"diste";
if ( [verb isEqualToString:@"ir"] || [verb isEqualToString:@"ser"] ) return @"fuiste";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"aste"];
else [verbStem stringByAppendingString:@"iste"];
}
if ( [person isEqualToString:@"THIRD_PERSON_SINGULAR"]) {
// Irregular
if ( [verb isEqualToString:@"dar"]) return @"dio";
if ( [verb isEqualToString:@"ir"] || [verb isEqualToString:@"ser"] ) return @"fue";
if ( [[verbStem substringFromIndex:[verb length] - 1] isEqualToString:@"e"] ||
[[verbStem substringFromIndex:[verb length] - 1] isEqualToString:@"i"])
// If the stem of an -er or -ir ends in a vowel, the -i of the 3rd person changes to y
return [verbStem stringByAppendingString:@""];
if ( ![@"ar" isEqualToString:verbExit] ) {
// Irregular, stem changed
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"o"];
else return [verbStem stringByAppendingString:@"io"];
}
if ( [[self simplePresentEtoIEstemChangersArray] containsObject:verb] ) {
// Verb changes stem from e to i
verbStem = [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"e"] withString:@"i"];
}
if ( [[self simplePresentOtoUEstemChangersArray] containsObject:verb] ) {
// Verb changes stem from o to u
verbStem = [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"o"] withString:@"u"];
}
if ( [[self simplePresentEtoIstemChangersArray] containsObject:verb] ) {
// Verb changes stem from e to i
verbStem = [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"e"] withString:@"i"];
}
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"ó"];
else if ([[verbStem substringFromIndex:[verb length] - 1] isEqualToString:@"i"]) return [verbStem stringByAppendingString:@"o"];
else return [verbStem stringByAppendingString:@""];
}
if ( [person isEqualToString:@"FIRST_PERSON_PLURAL"]) {
// Irregular
if ( [verb isEqualToString:@"dar"]) return @"dimos";
if ( [verb isEqualToString:@"ir"] || [verb isEqualToString:@"ser"] ) return @"fuimos";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"amos"];
else return [verbStem stringByAppendingString:@"imos"];
}
if ( [person isEqualToString:@"SECOND_PERSON_PLURAL"]) {
// Irregular
if ( [verb isEqualToString:@"dar"]) return @"disteis";
if ( [verb isEqualToString:@"ir"] || [verb isEqualToString:@"ser"] ) return @"fuisteis";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"asteis"];
else return [verbStem stringByAppendingString:@"isteis"];
}
if ( [person isEqualToString:@"THIRD_PERSON_PLURAL"]) {
// Irregular
if ( [verb isEqualToString:@"dar"]) return @"dieron";
if ( [verb isEqualToString:@"ir"] || [verb isEqualToString:@"ser"] ) return @"fueron";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"aron"];
else if ([[verbStem substringFromIndex:[verb length] - 1] isEqualToString:@"j"]) return [verbStem stringByAppendingString:@"eron"];
else return [verbStem stringByAppendingString:@"ieron"];
}
return verb;
}
- (NSString *) conjugateImperfectVerb:(NSString *) verb inPerson:(NSString *) person {
NSString * verbStem = [self getStem:verb];
NSString * verbExit = [self getExit:verb];
// regular
if ( [person isEqualToString:@"FIRST_PERSON_SINGULAR"]) {
if ( [verb isEqualToString:@"ser"] ) return @"era";
if ( [verb isEqualToString:@"ir"] ) return @"iba";
if ( [verb isEqualToString:@"ver"] ) return @"veía";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"aba"];
else return [verbStem stringByAppendingString:@"ía"];
}
if ( [person isEqualToString:@"SECOND_PERSON_SINGULAR"]) {
if ( [verb isEqualToString:@"ser"] ) return @"eras";
if ( [verb isEqualToString:@"ir"] ) return @"ibas";
if ( [verb isEqualToString:@"ver"] ) return @"veías";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"abas"];
else return [verbStem stringByAppendingString:@"ías"];
}
if ( [person isEqualToString:@"THIRD_PERSON_SINGULAR"]) {
if ( [verb isEqualToString:@"ser"] ) return @"era";
if ( [verb isEqualToString:@"ir"] ) return @"iba";
if ( [verb isEqualToString:@"ver"] ) return @"veía";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"aba"];
else return [verbStem stringByAppendingString:@"ía"];
}
if ( [person isEqualToString:@"FIRST_PERSON_PLURAL"]) {
if ( [verb isEqualToString:@"ser"] ) return @"éramos";
if ( [verb isEqualToString:@"ir"] ) return @"íbamos";
if ( [verb isEqualToString:@"ver"] ) return @"veíamos";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"ábamos"];
else return [verbStem stringByAppendingString:@"íamos"];
}
if ( [person isEqualToString:@"SECOND_PERSON_PLURAL"]) {
if ( [verb isEqualToString:@"ser"] ) return @"erais";
if ( [verb isEqualToString:@"ir"] ) return @"ibais";
if ( [verb isEqualToString:@"ver"] ) return @"veíais";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"abais"];
else return [verbStem stringByAppendingString:@"íais"];
}
if ( [person isEqualToString:@"THIRD_PERSON_PLURAL"]) {
if ( [verb isEqualToString:@"ser"] ) return @"eran";
if ( [verb isEqualToString:@"ir"] ) return @"iban";
if ( [verb isEqualToString:@"ver"] ) return @"veían";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"aban"];
else return [verbStem stringByAppendingString:@"ían"];
}
return verb;
}
// Get stem for Future and Condicional
- (NSString *) getFutureStem:(NSString *) verb {
// Irregular stem
if ( [verb isEqualToString:@"decir"]) return @"dir";
if ( [verb isEqualToString:@"haber"]) return @"habr";
if ( [verb isEqualToString:@"hacer"]) return @"har";
if ( [verb isEqualToString:@"poder"]) return @"podr";
if ( [verb isEqualToString:@"poner"]) return @"pondr";
if ( [verb isEqualToString:@"querer"]) return @"querr";
if ( [verb isEqualToString:@"saber"]) return @"sabr";
if ( [verb isEqualToString:@"salir"]) return @"saldr";
if ( [verb isEqualToString:@"tener"]) return @"tendr";
if ( [verb isEqualToString:@"valer"]) return @"valdr";
if ( [verb isEqualToString:@"venir"]) return @"vendr";
// Regular stem = infinitive
return verb;
}
- (NSString *) conjugateFutureVerb:(NSString *) verb inPerson:(NSString *) person {
NSString * verbStem = [self getFutureStem:verb];
// regular
if ( [person isEqualToString:@"FIRST_PERSON_SINGULAR"])
return [verbStem stringByAppendingString:@"é"];
if ( [person isEqualToString:@"SECOND_PERSON_SINGULAR"])
return [verbStem stringByAppendingString:@"ás"];
if ( [person isEqualToString:@"THIRD_PERSON_SINGULAR"])
return [verbStem stringByAppendingString:@"á"];
if ( [person isEqualToString:@"FIRST_PERSON_PLURAL"])
return [verbStem stringByAppendingString:@"emos"];
if ( [person isEqualToString:@"SECOND_PERSON_PLURAL"])
return [verbStem stringByAppendingString:@"éis"];
if ( [person isEqualToString:@"THIRD_PERSON_PLURAL"])
return [verbStem stringByAppendingString:@"án"];
return verb;
}
- (NSString *) conjugatePerfectVerb:(NSString *) verb {
NSString * verbStem = [self getStem:verb];
NSString * verbExit = [self getExit:verb];
if ( [verb rangeOfString:@"abrir"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"abrir"] withString:@"abierto"];
if ( [verb rangeOfString:@"cubrir"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"cubrir"] withString:@"cubierto"];
if ( [verb rangeOfString:@"decir"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"decir"] withString:@"dicho"];
if ( [verb rangeOfString:@"escribir"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"escribir"] withString:@"escrito"];
if ( [verb rangeOfString:@"hacer"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"hacer"] withString:@"hecho"];
if ( [verb rangeOfString:@"morir"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"morir"] withString:@"muerto"];
if ( [verb rangeOfString:@"poner"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"poner"] withString:@"puesto"];
if ( [verb rangeOfString:@"romper"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"romper"] withString:@"roto"];
if ( [verb rangeOfString:@"volver"].location != NSNotFound)
return [verbStem stringByReplacingCharactersInRange:[verbStem rangeOfString:@"volver"] withString:@"vuelto"];
if ( [verb isEqualToString:@"ver"]) return @"visto";
if ( [@"ar" isEqualToString:verbExit] ) return [verbStem stringByAppendingString:@"ado"];
else return [verbStem stringByAppendingString:@"ido"];
return verb;
}
// El perfecto
- (NSString *) conjugatePresentPerfectVerb:(NSString *) verb inPerson:(NSString *) person {
// Present of haber + Perfect tense
return [[[self conjugateSimplePresentVerb:@"haber" inPerson:person] stringByAppendingString:@" "] stringByAppendingString:[self conjugatePerfectVerb:verb]];
}
// el pluscuamperfecto
- (NSString *) conjugatePastPerfectVerb:(NSString *) verb inPerson:(NSString *) person {
// Past of haber + Perfect tense
return [[[self conjugateSimplePastVerb:@"haber" inPerson:person] stringByAppendingString:@" "] stringByAppendingString:[self conjugatePerfectVerb:verb]];
}
// el futuro perfecto
- (NSString *) conjugateFuturePerfectVerb:(NSString *) verb inPerson:(NSString *) person {
// Future of haber + Perfect tense
return [[[self conjugateFutureVerb:@"haber" inPerson:person] stringByAppendingString:@" "] stringByAppendingString:[self conjugatePerfectVerb:verb]];
}
- (NSString *) conjugateVerb:(NSString *) verb inPerson:(NSString *) person andTense:(NSString *) tense {
if ( [tense isEqualToString:@"SIMPLE_PRESENT"])
return [self conjugateSimplePresentVerb:verb inPerson:person];
else if ( [tense isEqualToString:@"SIMPLE_PAST"])
return [self conjugateSimplePastVerb:verb inPerson:person];
else if ( [tense isEqualToString:@"IMPERFECT"])
return [self conjugateImperfectVerb:verb inPerson:person];
else if ( [tense isEqualToString:@"FUTURE"])
return [self conjugateFutureVerb:verb inPerson:person];
else if ( [tense isEqualToString:@"PERFECT"])
return [self conjugatePerfectVerb:verb];
else if ( [tense isEqualToString:@"PRESENT_PERFECT"])
return [self conjugatePresentPerfectVerb:verb inPerson:person];
else if ( [tense isEqualToString:@"PAST_PERFECT"]) // Pluscuamperfecto
return [self conjugatePastPerfectVerb:verb inPerson:person];
else if ( [tense isEqualToString:@"FUTURE_PERFECT"])
return [self conjugateFuturePerfectVerb:verb inPerson:person];
else
return @"Invalid tense";
}
@end