711/BuguLive/Class/General/Category/NSString/NSString+Common.h

//
//  NSString+Common.h
//
//  Created by Alexi on 12-11-5.
//  Copyright (c) 2012年 . All rights reserved.
//

#import <Foundation/Foundation.h>

char pinyinFirstLetter(unsigned short hanzi);

@interface NSString (Common)

// 将str加密成本地保存的文件名
+ (NSString *)md5String:(NSString *)str;
- (NSString *)md5;

- (NSString *)firstPinYin;

// 是否为空
+ (BOOL)isEmpty:(NSString *)string;

/**
 compare two version
 @param sourVersion *.*.*.*
 @param desVersion *.*.*.*
 @returns No,sourVersion is less than desVersion; YES, the statue is opposed
 */
+ (BOOL)compareVerison:(NSString *)sourVersion withDes:(NSString *)desVersion;

// 当前字符串是否只包含空白字符和换行符
- (BOOL)isWhitespaceAndNewlines;

// 去除字符串前后的空白,不包含换行符
- (NSString *)trim;

// 去除字符串中所有空白
- (NSString *)removeWhiteSpace;
- (NSString *)removeNewLine;

// 将字符串以URL格式编码
- (NSString *)stringByUrlEncoding;

/*!
 @brief     大写第一个字符
 @return    格式化后的字符串
 */
- (NSString *)capitalize;

// 以给定字符串开始,忽略大小写
- (BOOL)startsWith:(NSString *)str;
// 以指定条件判断字符串是否以给定字符串开始
- (BOOL)startsWith:(NSString *)str Options:(NSStringCompareOptions)compareOptions;


// 以给定字符串结束，忽略大小写
- (BOOL)endsWith:(NSString *)str;
// 以指定条件判断字符串是否以给定字符串结尾
- (BOOL)endsWith:(NSString *)str Options:(NSStringCompareOptions)compareOptions;

// 包含给定的字符串, 忽略大小写
- (BOOL)containsString:(NSString *)str;
// 以指定条件判断是否包含给定的字符串
- (BOOL)containsString:(NSString *)str Options:(NSStringCompareOptions)compareOptions;

// 判断字符串是否相同，忽略大小写
- (BOOL)equalsString:(NSString *)str;

- (NSString *)emjoiText;

// Hashing
- (NSString *)base64Encoding;

- (NSString *)valueOfLabel:(NSString *)label;

- (NSString *)substringAtRange:(NSRange)rang;

// 是否带有表情府
- (NSUInteger)utf8Length;

- (BOOL)isContainsEmoji;

//递归计算符合规定的文本长度
- (NSString *)cutBeyondTextInLength:(NSInteger)maxLenth;

- (CGSize)textSizeIn:(CGSize)size font:(UIFont *)font;
- (CGSize)textSizeIn:(CGSize)size font:(UIFont *)font breakMode:(NSLineBreakMode)breakMode;
- (CGSize)textSizeIn:(CGSize)size font:(UIFont *)font breakMode:(NSLineBreakMode)breakMode align:(NSTextAlignment)alignment;

@end