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{
NSString *xContent = myTextView.text;
//temp file filename
NSString *tmpFileName = @"test1.html";
//temp dir
NSString *tempDir = NSTemporaryDirectory();
NSLog(@"tempDirectory: %@",tempDir);
//create NSURL
NSString *path4 = [tempDir stringByAppendingPathComponent:tmpFileName];
NSURL* url = [NSURL fileURLWithPath:path4];
//setup HTML file contents
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"MathJax" ofType:@"js" inDirectory:@"mathjax-MathJax-v2.0"];
NSLog(@"filePath = %@",filePath);
//write to temp file "tempDir/tmpFileName", set MathJax JavaScript to use "filePath" as directory, add "xContent" as content of HTML file
[self writeStringToFile:tempDir fileName:tmpFileName pathName:filePath content:xContent];
NSURLRequest* req = [[NSURLRequest alloc] initWithURL:url];
//original request to show MathJax stuffs
[myWebView loadRequest:req];
}
-(void)writeStringToFile:(NSString *)dir fileName:(NSString *)strFileName pathName:(NSString *)strPath content:(NSString *)strContent{
NSString *path = [dir stringByAppendingPathComponent:strFileName];
NSString *foo0 = @"<html><head><meta name='viewport' content='initial-scale=1.0' />"
"<script type='text/javascript' src='";
NSString *foo1 = @"?config=TeX-AMS-MML_HTMLorMML-full'></script>"
"</head>"
"<body>";
NSString *foo2 = @"</body></html>";
NSString *fooFinal = [NSString stringWithFormat:@"%@%@%@%@%@",foo0,strPath,foo1,strContent,foo2];
[fooFinal writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:nil];
}
http://new2objectivec.blogspot.com/2012/03/tutorial-how-to-setup-mathjax-locally.html
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