IOS使用正则表达式去掉html中的标签元素,获得纯文本

content是根据网址获得的网页源码字符串

NSRegularExpression

*regularExpretion=[

NSRegularExpression

regularExpressionWithPattern

:

@"<[^>]*>|\n"

options

:

0

error

:nil

];

content=[regularExpretion

stringByReplacingMatchesInString

:content

options

:

NSMatchingReportProgress

range

:NSMakeRange(

0

,content

.length

)

withTemplate

:

@"-"

];

//替换所有html和换行匹配元素为"-"

regularExpretion=[

NSRegularExpression

regularExpressionWithPattern

:

@"-{1,}"

options

:

0

error

:nil

];

content=[regularExpretion

stringByReplacingMatchesInString

:content

options

:

NSMatchingReportProgress

range

:NSMakeRange(

0

,content

.length

)

withTemplate

:

@"-"

];

//把多个"-"匹配为一个"-"

//根据"-"分割到数组

NSArray

*arr=[

NSArray

array

];

content=[

NSString

stringWithString

:content];

arr=  [content

componentsSeparatedByString

:

@"-"

];

NSMutableArray

*marr=[

NSMutableArray

arrayWithArray

:arr];

[marr

removeObject

:

@""

];

return

marr;