我有一个包含格式化文本和嵌入图像的 NSTextView,如下所示。
我想将上面的转换为纯文本,如下所示:
Hi this is test data (...picture...)This is colored text.
谢谢
我有一个包含格式化文本和嵌入图像的 NSTextView,如下所示。
我想将上面的转换为纯文本,如下所示:
Hi this is test data (...picture...)This is colored text.
谢谢
尝试了几个小时后,我为自己的要求提出了以下解决方案。请让我知道我们是否有更好的方法来做到这一点。
我使用以下代码创建了 NSString 类别:
+ (NSString *)plainTextFromRTFD:(NSTextStorage *)aTextStorage
attachmentString:(NSString *)aString {
NSString *returnString = @"";
//Default value of aString, If nil
if (aString == nil) {
aString = @"(...Attachment...)";
}
if (aTextStorage && aString) {
//Initialize NSMutableString object to hold plain text
NSMutableString *plainText = [[NSMutableString alloc] init];
//Loop through all the attributes one-by-one to identify the NSAttachment
for(int i =0;i<[aTextStorage length];i++) {
NSDictionary *attr= [aTextStorage attributesAtIndex:i effectiveRange:NULL];
//Check whether attribute contains NSAttachment or not
if ([attr objectForKey:@"NSAttachment"] != nil) {
//Replace NSTextAttachment with attachmentString value
[plainText appendFormat:@"%@",aString];
} else {
//Add character to plain text
[plainText appendFormat:@"%@",[[[aTextStorage characters] objectAtIndex:i] string]];
}
}
//copy NSString from NSMutableString
returnString = [plainText copy];
//release NSMutableString
[plainText release];
}
return [returnString stringByReplacingOccurrencesOfString:@"\n" withString:@" "];}
而且,我正在使用它,如下所示:
NSLog(@"%@",[NSString plainTextFromRTFD:[contentView textStorage] attachmentString:nil]);
其中 contentView 是 NSTextView。