正則:
//1.去除Html語(yǔ)句<>
NSString * preStr1 =@"<([0-9a-zA-Z\"=#:\\/\\.\\_\\-\\? ])*>|<\\/([0-9a-zA-Z\"=#:\\/\\.\\_\\-\\? ])*>|<([0-9a-zA-Z\"=#:\\/\\.\\_\\-\\? ])*\\/>";
NSString * replacement = @"";
NSRegularExpression *regExp = [[NSRegularExpression alloc] initWithPattern:preStr1
options:NSRegularExpressionCaseInsensitive
error:nil];
//替換
newLengthStr = [regExp stringByReplacingMatchesInString:newLengthStr
options:NSMatchingReportProgress
range:NSMakeRange(0, newLengthStr.length)
withTemplate:replacement];
"/(?<=[^x00-xff！…“”《》—、’])( | )（？＝［＾x00-xff！…＂＂《》－、＇］）／"
- 2.\r\n 如果連續(xù)大于3個(gè)的情況
"(\r\n){3,}"
根據(jù)GBK計(jì)算長(zhǎng)度
//GBK轉(zhuǎn)碼
NSStringEncoding gbkEncoding = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);
NSData *data=[newLengthStr dataUsingEncoding:gbkEncoding];
NSInteger length = 0;
if (data.length % 2 == 0) {
length = data.length /2;
}else{
length = data.length /2 + 1;
}
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