问题
I have a string of HTML that I'm copy pasting into a String object that looks something like the following:
val s = """<body>
<p>This is a test</p> <p>This is a test 2</p>
</body"""
The problem here is, when I display this string as JSON within the context of a web browser, the output displays literal \n and \t characters to the tune of something like this:
"<body>\n <p>This is a test</p>\t <p>This is a test 2</p>\n</body>"
Is it possible to perhaps strip all of these escaped sequences from my strings output in Scala?
回答1:
You could just
s.filter(_ >= ' ')
to throw away all control characters.
If you want to omit extra whitespace at the start/end of lines also, you can instead
s.split('\n').map(_.trim.filter(_ >= ' ')).mkString
来源：https://stackoverflow.com/questions/17581714/scala-replace-newline-tab-and-return-sequences-from-string