将非英语字符作为英语字符。

Ok, my case is like this.

好的，我的情况是这样的。

First off, the thing I doing is taking the contact name via the address book, and display the name, the name might contain english, non-english (chinese, japanese or etc.), symbol and so on. The problem I facing now is the non-english character do not group according to the group, which let said suppose the 'X' is fall under group 'G', but it display in the next group. Like below, that chinese word should fall under group 'G'.

首先，我做的事情是通过通讯录取联系人姓名，并显示姓名，名称可能包含英语、非英语(中文、日语或其他)、符号等。我现在所面临的问题是，非英语的字符不能根据组来分组，假设“X”属于G组，但是在下一组中显示。像下面这样，中文单词应该归入G组。

I have saw one condition in the code is when it is not within the A - Z, it will group them in the '#' group. The code is not written by me, I currently doing a bug fixing thingy. Then this index thing is fully customize by hand, so ...

我已经看到代码中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，我现在正在做一个修复程序。然后这个索引的东西是手工定制的，所以…

Is there any way to know whether the character is symbol, or a non-english character?! Or is there a way we can get the contact from the address book by group???

是否有办法知道字符是符号还是非英语字符?!或者有没有一种方法可以让我们从地址簿中获取联系人???

Below code is the part that check the character where it suppose to group.

下面的代码是检查该字符在哪里进行分组的部分。

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++;
}

4 个解决方案

#1

I have found a way to read the chinese character and organize them according to A-Z alphabet. Here is the file that I find from this site (chinese site). I will include the code incase some of you need. Please note, Im not sure it is a proper way or not.

我找到了一种阅读汉字的方法，并根据字母a - z来组织。这是我从这个网站(中文网站)找到的文件。我将包括一些你们需要的代码。请注意，我不确定这是否是正确的方法。

Let said I call this class as Pinyin.

我把这门课叫做拼音。

Pinyin.h

Pinyin.h

@interface Pinyin : NSObject {

}

- (char) pinyinFirstLetter:(unsigned short) hanzi;

@end

Pinyin.m

Pinyin.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

This method will return the chinese character according to the english alphabet (but some Japanese Kanji will recognize as chinese though... which is not correct).

这个方法会根据英文字母来返回汉字(但是一些日本汉字会识别为中文)。这是不正确的)。

To use this method (example):

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];
}

If you have any method, idea or recommendation please tell me too. I still need one method that can read Japanese and organize it into group.

如果你有任何方法、想法或建议，请告诉我。我还需要一种方法，可以阅读日语并组织成小组。

credit go to the original author.

荣誉归于原作者。

#2

Its a good idea to always use rangeOfComposedCharacterSequenceAtIndex: to ensure you handle single characters that are composed of a sequence of more than one unichar (this is most likely what was behind your incorrect grouping of non-english characters), and use stringByFoldingWithOptions:locale: to ensure you reduce accented characters to an appropriate common base form (note that the folded character is lower case).

它的一个好主意总是使用rangeOfComposedCharacterSequenceAtIndex:确保你处理单个字符组成的一个序列的多个unichar(这是最有可能的是什么在你的不正确的分组非英语字符),并使用stringByFoldingWithOptions:地区:确保你重音字符降低到一个适当的公共基础形式(注意,折叠字符小写)。

Hence, form your selectCharacter as follows:-

因此，形成您的选择字符如下:-。

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

HTH

#3

The correct way to do this is to use the UILocalizedIndexedCollation class, even if you're not using it as the index for your table view.

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];

Note that you should not use the currentCollation shared instance if you're planning on using it as an index later.

注意，如果您打算稍后将其用作索引，则不应该使用currentCollation共享实例。

#4

I faced this subject while building index for music library, which is quite language-mixed. So here is what came up with: sort library alphabetically (for instance, using NSSortDescriptor), grab first letters and then group indicies using some fixed step = min (step, letter-count).

我在为音乐库构建索引时遇到了这个问题，这是一种非常复杂的语言。因此，这里给出的是:按字母顺序对库进行排序(例如，使用NSSortDescriptor)，获取第一个字母，然后使用一些固定的步骤= min(步骤，字母计数)进行分组。

Like this, step = 5:

像这样，步骤= 5:

[a a a a a a a a a a b b b c d e g g g h i i i i i i i k l m]
[a                   b         e         i             k