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Groups > comp.lang.java.programmer > #34705

Re: String replaceAll escaping sequence

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On 6/24/2016 3:31 AM, Philipp Kraus wrote:
> I try to add an escape sequence to a String. I have got String with #, _ & (symbols which
 > must be escaped on LaTeX) and try to put a backslash in front of the 
symbol, so:
>
> # -> \#
> $ -> \$
>
> I try to do this with:
>
> mystring.replaceAll( "([\\$\\#&%_])", "\\\\$1" )
>
> but in this case i get a double backslash \\$ for example, on
>
> mystring.replaceAll( "([\\$\\#&%_])", "\\$1" )
>
> I don't get any backslash at the output.
>
> How can I create the correct regex to put one backslash in front of the symbol?

The 4 backslashes works here.

		String s = "a#b#c";
		System.out.println(s.replaceAll("[#]", "\\$0"));
		System.out.println(s.replaceAll("[#]", "\\\\$0"));

gives me:

a$0b$0c
a\#b\#c

Arne

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String replaceAll escaping sequence Philipp Kraus <philipp.kraus.flashpixx@gmail.com> - 2016-06-24 00:31 -0700
  Re: String replaceAll escaping sequence Arne Vajhøj <arne@vajhoej.dk> - 2016-06-24 19:49 -0400
  Re: String replaceAll escaping sequence Lew <lewbloch@gmail.com> - 2016-06-25 17:57 -0700
    Re: String replaceAll escaping sequence Arne Vajhøj <arne@vajhoej.dk> - 2016-06-25 22:14 -0400
  Re: String replaceAll escaping sequence Daniel Pitts <usenet@coloraura.com> - 2016-06-27 13:52 -0700

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