获取非英语字符作为英语字符
获取非英语字符作为英语字符
提问于 2011-04-26 19:18:47
好吧，我的案例是这样的。
首先，我做的事情是通过通讯录获取联系人姓名，并显示姓名，姓名可能包含英语、非英语(中文、日语等)、符号等。我现在面临的问题是非英语字符不按组分组，这就让我们假设“X”属于组“G”，但它显示在下一组中。如下所示，该中文单词应归入“G”组。
我在代码中看到的一个条件是，当它不在A- Z中时，它会将它们分组到“#”组中。代码不是我写的，我目前正在做一个bug修复的事情。然后这个索引是完全手工定制的，所以...
有没有办法知道这个字符是符号，还是非英文字符？！或者有没有办法让我们按组从通讯录中获取联系人？
下面的代码是检查应该分组的字符的部分。
name = [name stringByTrimmingCharactersInSet:[NSCharacterSet punctuationCharacterSet]];
selectCharacter = [[name uppercaseString] characterAtIndex:0];
if( (selectCharacter > 'Z') || (selectCharacter < 'A')){
selectCharacter = '#';
}
if( currentCharacter != selectCharacter ){
// Store Old
if( currentCharacter > 0 ){
NSMutableArray * data = [allPeopleSectionIndex lastObject];
[data insertObject:[NSNumber numberWithInt:currentCount] atIndex:2];
}
// Setup for New
currentCharacter = selectCharacter;
currentCount = 1;
currentCharacterIndex ++;
// 0: char, 1: section start, 2: count
NSMutableArray * data = [[NSMutableArray alloc] initWithObjects:
[NSString stringWithFormat:@"%c", currentCharacter],
[NSNumber numberWithInt:i],
[NSNumber numberWithInt:0],
nil];
[allPeopleSectionIndex addObject:data];
[data release];
} else {
currentCount++;
}回答 4
Stack Overflow用户
回答已采纳
发布于 2011-04-28 11:36:48
我已经找到了一种方法来阅读汉字，并按照A-Z字母表来组织它们。这是我从这个site (中文站点)找到的文件。我将包括代码，以防你们中的一些人需要。请注意，我不确定这是不是一种合适的方式。
假设我把这门课叫做拼音。
Pinyin.h
@interface Pinyin : NSObject {
}
- (char) pinyinFirstLetter:(unsigned short) hanzi;
@endPinyin.m
#import "Pinyin.h"
#define HANZI_START 19968
#define HANZI_COUNT 20902
@implementation Pinyin
static char firstLetterArray[HANZI_COUNT] = "ydkqsxnwzssxjbymgcczqpssqbycdscdqldylybssjgyqzjjfgcclzznwdwzjljpfyynnjjtmynzwzhflzppqhgccyynmjqyxxgd"
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"xy";
- (char) pinyinFirstLetter:(unsigned short) hanzi{
int index = hanzi - HANZI_START;
if (index >= 0 && index <= HANZI_COUNT) {
return firstLetterArray[index];
}else{
//anything that not recognize will return as a '#'
return '#';
}
}
@end此方法将根据英文字母表返回中文字符(但有些日文汉字会识别为中文……这是不正确的)。
要使用此方法(示例)：
char selectedChar = 0;
if ([name canBeConvertedToEncoding: NSASCIIStringEncoding]) {//if english
selectedChar = [[name uppercaseString] characterAtIndex:0];
}else { //if not english
Pinyin *pinyin = [[Pinyin alloc]init];
//return the english alphabet
selectedChar = [pinyin pinyinFirstLetter: /* Pass in the character here */];
[pinyin release];
}如果你有任何方法，想法或建议，也请告诉我。我仍然需要一种能读懂日语并将其组织成组的方法。
功劳归功于原作者。
Stack Overflow用户
发布于 2011-04-26 22:58:29
最好始终使用rangeOfComposedCharacterSequenceAtIndex:来确保您处理由多个unichar组成的单个字符(这很可能是您不正确的非英语字符分组背后的原因)，并使用stringByFoldingWithOptions:locale:来确保您将重音字符减少为适当的通用基本形式(请注意，折叠的字符是小写的)。
因此，您的selectCharacter格式如下：
NSRange range = [name rangeOfComposedCharacterSequenceAtIndex: 0];
NSString* initialChar = [name substringWithRange: range];
NSString* initialCharFolded =
[initialChar
stringByFoldingWithOptions:
NSCaseInsensitiveSearch
+ NSDiacriticInsensitiveSearch
+ NSWidthInsensitiveSearch
locale: [NSLocale currentLocale]];
if ([initialCharFolded length] == 1)
selectCharacter = [[initialCharFolded uppercaseString] characterAtIndex: 0];
else
selectCharacter = '#';
if (selectCharacter > 'Z' || selectCharacter < 'A')
selectCharacter = '#';HTH
Stack Overflow用户
发布于 2012-09-08 02:52:43
正确的方法是使用UILocalizedIndexedCollation类，即使您没有使用它作为表视图的索引。
NSInteger index = [[UILocalizedIndexedCollation currentCollation] sectionForObject:chineseLetter collationStringSelector:@selector(self)];
NSString *englishLetter = [[UILocalizedIndexedCollation currentCollation] sectionIndexTitles] objectAtIndex:index];请注意，如果您计划稍后将currentCollation共享实例用作索引，则不应使用它。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/5789525
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