1.去RegexKitLite下载类库,解压出来会有一个例子包及2个文件,其实用到的就这2个文件,添加到工程中。
2.工程中添加libicucore.dylib frameworks。
友情提醒:一般人导入RegexKitLite编译报错,正是因为没有导入这个类库,加上这个就OK了
3.现在所有的nsstring对象就可以调用RegexKitLite中的方法了。
NSString *email = @”kkk@aaa.com”;
[email isMatchedByRegex:@"\\b([a-zA-Z0-9%_.+\\-]+)@([a-zA-Z0-9.\\-]+?\\.[a-zA-Z]{2,6})\\b”];
返回YES,证明是email格式,需要注意的是RegexKitLite用到的正则表达式和wiki上的略有区别。
searchString = @”http://www.example.com:8080/index.html”;
regexString = @”\\bhttps?://[a-zA-Z0-9\\-.]+(?::(\\d+))?(?:(?:/[a-zA-Z0-9\\-._?,'+\\&%$=~*!():@\\\\]*)+)?”;
NSInteger portInteger = [[searchString stringByMatching:regexString capture:1L] integerValue];
NSLog(@”portInteger: ‘%ld’”, (long)portInteger);
// 2008-10-15 08:52:52.500 host_port[8021:807] portInteger: ‘8080′
取string中http的例子。
下面给出常用的一些正则表达式(其实就是RegexKitLite官网上的,怕同鞋偷情不看)
CharacterDescription
\aMatch a BELL, \u0007
\AMatch at the beginning of the input. Differs from ^ in that \A will not match after a new-line within the input.
\b, outside of a [Set]Match if the current position is a word boundary. Boundaries occur at the transitions between word \w and non-word \W characters, with combining marks ignored.
See also: RKLUnicodeWordBoundaries
\b, within a [Set]Match a BACKSPACE, \u0008.
\BMatch if the current position is not a word boundary.
\cxMatch a Control-x character.
\dMatch any character with the Unicode General Category of Nd (Number, Decimal Digit).
\DMatch any character that is not a decimal digit.
\eMatch an ESCAPE, \u001B.
\ETerminates a \Q…\E quoted sequence.
\fMatch a FORM FEED, \u000C.
\GMatch if the current position is at the end of the previous match.
\nMatch a LINE FEED, \u000A.
\N{Unicode Character Name}Match the named Unicode Character.
\p{Unicode Property Name}Match any character with the specified Unicode Property.
\P{Unicode Property Name}Match any character not having the specified Unicode Property.
\QQuotes all following characters until \E.
\rMatch a CARRIAGE RETURN, \u000D.
\sMatch a white space character. White space is defined as [\t\n\f\r\p{Z}].
\SMatch a non-white space character.
\tMatch a HORIZONTAL TABULATION, \u0009.
\uhhhhMatch the character with the hex value hhhh.
\UhhhhhhhhMatch the character with the hex value hhhhhhhh. Exactly eight hex digits must be provided, even though the largest Unicode code point is \U0010ffff.
\wMatch a word character. Word characters are [\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Nd}].
\WMatch a non-word character.
\x{h…}Match the character with hex value hhhh. From one to six hex digits may be supplied.
\xhhMatch the character with two digit hex value hh.
\XMatch a Grapheme Cluster.
\ZMatch if the current position is at the end of input, but before the final line terminator, if one exists.
\zMatch if the current position is at the end of input.
\nBack Reference. Match whatever the nth capturing group matched. n must be a number ≥ 1 and ≤ total number of capture groups in the pattern.Note:Octal escapes, such as \012, are not supported.
[pattern]Match any one character from the set. See ICU Regular Expression Character Classes for a full description of what may appear in the pattern.
.Match any character.
^Match at the beginning of a line.
$Match at the end of a line.
\Quotes the following character. Characters that must be quoted to be treated as literals are * ? + [ ( ) { } ^ $ | \ . /
OperatorsOperatorDescription
|Alternation. A|B matches either A or B.
*Match zero or more times. Match as many times as possible.
+Match one or more times. Match as many times as possible.
?Match zero or one times. Prefer one.
{n}Match exactly n times.
{n,}Match at least n times. Match as many times as possible.
{n,m}Match between n and m times. Match as many times as possible, but not more than m.
*?Match zero or more times. Match as few times as possible.
+?Match one or more times. Match as few times as possible.
??Match zero or one times. Prefer zero.
{n}?Match exactly n times.
{n,}?Match at least n times, but no more than required for an overall pattern match.
{n,m}?Match between n and m times. Match as few times as possible, but not less than n.
*+Match zero or more times. Match as many times as possible when first encountered, do not retry with fewer even if overall match fails. Possessive match.
++Match one or more times. Possessive match.
?+Match zero or one times. Possessive match.
{n}+Match exactly n times. Possessive match.
{n,}+Match at least n times. Possessive match.
{n,m}+Match between n and m times. Possessive match.
(…)Capturing parentheses. Range of input that matched the parenthesized subexpression is available after the match.
(?:…)Non-capturing parentheses. Groups the included pattern, but does not provide capturing of matching text. Somewhat more efficient than capturing parentheses.
(?>…)Atomic-match parentheses. First match of the parenthesized subexpression is the only one tried; if it does not lead to an overall pattern match, back up the search for a match to a position before the (?> .
(?#…)Free-format comment (?#comment).
(?=…)Look-ahead assertion. True if the parenthesized pattern matches at the current input position, but does not advance the input position.
(?!…)Negative look-ahead assertion. True if the parenthesized pattern does not match at the current input position. Does not advance the input position.
(?<=…)Look-behind assertion. True if the parenthesized pattern matches text preceding the current input position, with the last character of the match being the input character just before the current position. Does not alter the input position. The length of possible strings matched by the look-behind pattern must not be unbounded (no * or + operators).
(?<!…)Negative Look-behind assertion. True if the parenthesized pattern does not match text preceding the current input position, with the last character of the match being the input character just before the current position. Does not alter the input position. The length of possible strings matched by the look-behind pattern must not be unbounded (no * or + operators).
(?ismwx-ismwx:…)Flag settings. Evaluate the parenthesized expression with the specified flags enabled or -disabled.
(?ismwx-ismwx)Flag settings. Change the flag settings. Changes apply to the portion of the pattern following the setting. For example, (?i) changes to a case insensitive match.
See also: Regular Expression Options
同时需要注意的是转义字符哦~~在safari上复制会直接转换(网站蛮人性化的)
同时也提供了转换工具,safari测试支持,可能下载的时候有点慢,耐心等待,链接
- 27个提升效率的iOS开源库推荐
DZNEmptyDataSet(UI,空表格视图解算器) PDTSimpleCalendar(UI,drop-in日历组件) MagicalRecord(实施活跃记录模式的Core Data助手) C ...
- iOS 开源库介绍
1. Github-iOS备忘 2. iOS 第三方开源库的吐槽和备忘 3. 移动开发的后台服务支持平台 4. iOS 开源库 之 AFNetWorking 2.x 5. iOS 之 二维码 ZXin ...
- fir.im Weekly - 2017 年必须了解的 iOS 开源库
放假的脚步临近,每个人都在期待一个愉悦的春节假期.最近,@张嘉夫 分享了一篇 Medium 上的文章<33 个 2017 年必须了解的 iOS 开源库>,总结了 2016 年最棒的 iOS ...
- 33 个 2017 年必须了解的 iOS 开源库
本文翻译自Medium,原作者为Pawe? Bia?ecki 照片版权:(Unsplash/Markus Pe) 你好,iOS 开发者们!我的名字叫 Pawe?,我是一个独立 iOS 开发者,并且是 ...
- 快快快!27个提升效率的iOS开源库推荐
文章来源:http://www.csdn.net/article/2015-07-21/2825264-27-ios-open-source-libraries/1 我热爱开源,更喜爱那些花费宝贵的业 ...
- 【转】33 个 2017 年必须了解的 iOS 开源库
1.IGListKit,作者是Instagram Engineering Instagram 程序员做的,IGListKit 是数据驱动的 UICollectionView 框架,为了构建快速和可扩展 ...
- 2017 33 款iOS开源库
IGListKit https://github.com/Instagram/IGListKit 由 Instagram 开发人员制作,IGListKit 是用于构建快速灵活列表的数据驱动型的 UIC ...
- 快快快!27个提升效率的iOS开源库推荐(转)
CSDN移动将持续为您优选移动开发的精华内容,共同探讨移动开发的技术热点话题,涵盖移动应用.开发工具.移动游戏及引擎.智能硬件.物联网等方方面面.如果您想投稿.参与内容翻译工作,或寻求近匠报道,请发送 ...
- iOS开源库分类
语言库 rx aop kvo 功能库 UI network data-model-map cache 跨平台库 wkjscorebridge jspatch 性能监控库:友盟 部署库:jspathc ...
随机推荐
- SCD Type2 in ODI
缓慢变化维(Slowly changing Dimensions)指的是维表中的维度字段值会随着时间或业务调整,而在后续的分析中,历史数据仍然要使用旧的维度值,新的数据会使用当前维度值.在数据仓库建设 ...
- JAVA的驼峰和下划线互转帮助类
实体类: import java.io.Serializable; import lombok.AllArgsConstructor; import lombok.Data; import lombo ...
- 10、java5线程池之返回结果的任务之Callable与Future
JDK文档描述Callable: public interface Callable<V>返回结果并且可能抛出异常的任务.实现者定义了一个不带任何参数的叫做 call 的方法. Calla ...
- Servlet学习(二):ServletConfig获取参数;ServletContext应用:请求转发,参数获取,资源读取;类装载器读取文件
转载:http://www.cnblogs.com/xdp-gacl/p/3763559.html 一.ServletConfig讲解 1.1.配置Servlet初始化参数 在Servlet的配置文件 ...
- JUC-Condition和Lock实践-线程按序交替执行
编写一个程序,开启 3 个线程,这三个线程的 ID 分别为 A.B.C,每个线程将自己的 ID 在屏幕上打印 10 遍,要求输出的结果必须按顺序显示.如:ABCABCABC…… 依次递归 这里只使用c ...
- XML文件生成C++代码(基于rapidxml)
简述 与XML文件生成C++代码(基于pugixml)中的功能一致,只是这里改用的rapidxml来实现.就不多说了,直接放代码. 代码 #include "rapidxml-1.13/ra ...
- 程序员必备!Sonar代码质量管理工具
Sonar 是一个用于代码质量管理的开放平台.通过插件机制,Sonar 可以集成不同的测试工具,代码分析工具,以及持续集成工具. Sonar 概述 Sonar 是一个用于代码质量管理的开放平台.通过插 ...
- Unrecognized option: -jrockit
weblogic报错: starting weblogic with Java version: Unrecognized option: -jrockit Error: Could not crea ...
- 转:D3DXVec3TransformNormal() 与 3DXVec3TransformCoord() 的区别
DirectX中有两个很相似的函数,输入与输出的参数格式完全一样,都是输入一个三维向量(D3DXVECTOR3)和一个矩阵(D3DXMATRIX),输出变换之后的向量(D3DXVECTOR3). 函数 ...
- C语言终极面试及答案分析
第一部分:基本概念及其它问答题 .关键字static的作用是什么? 这个简单的问题很少有人能回答完全.在C语言中,关键字static有三个明显的作用: ). 在函数体,一个被声明为静态的变量在这一函数 ...