split() in String: asterisk in character class

[Michael]

Hello!

I have the following string Id like to split:
023876:adm;Hansen,Hans-250000*1997

String regexp="[:;,-*]";
givess me an error :
java.util.regex.PatternSyntaxException: Illegal character range near index 5

String regexp="[:;,-\*]";
wont even compile.

How do I express this character class?

Thanks

Michael

 

[Andrew Thompson]

I have the following string Id like to split:
023876:adm;Hansen,Hans-250000*1997

String regexp="[:;,-*]";

<http://www.physci.org/split.jsp?text=023876:adm;Hansen,Hans-250000*1997&delim=[:;,-\\*]>

(?)

 

[Andrew Thompson]

I have the following string Id like to split:
023876:adm;Hansen,Hans-250000*1997

String regexp="[:;,-*]";

<http://www.physci.org/split.jsp?text=023876:adm;Hansen,Hans-250000*1997&delim=[:;,-\\*]>

But I suspect *this* is what you are actually trying to do..
<http://www.physci.org/split.jsp?text=023876:adm;Hansen,Hans-250000*1997&delim=[\\*;:,-]>

....hmmmm.

Now that I have the RegEx Lab, I'll have to
learn how to use these funky patterns... ;-)

 

[Michael Preminger]

Hello!

I have the following string Id like to split:
023876:adm;Hansen,Hans-250000*1997

String regexp="[:;,-*]";
givess me an error :
java.util.regex.PatternSyntaxException: Illegal character range near index 5

String regexp="[:;,-\*]";
wont even compile.

How do I express this character class?

Thanks

Michael

O.K. I found the problem:
Java takes ",-*" this as a range (komma to asterisk) and fails to
understand. reshuffling ",*-" solves the problem.

Michael

 

[Roedy Green]

String regexp="[:;,-\*]";
wont even compile.

How do I express this character class?

Ask Quoter. , - \ * all have special meaning in regen and thus need
to be quoted.

See http://mindprod.com/jgloss/regex.html
http://mindprod.com/quoter.html
http://mindprod.com/projects/regexproofreader.html
http://mindprod.com/jgloss/regexcomposer.html

 

[Chris Smith]

String regexp="[:;,-*]";
givess me an error :
java.util.regex.PatternSyntaxException: Illegal character range near index 5

String regexp="[:;,-\*]";
wont even compile.

Java takes ",-*" this as a range (komma to asterisk) and fails to
understand. reshuffling ",*-" solves the problem.

That's rather fragile, though. Try this instead:

String regexp = "[:;\\,\\-\\*]";

I've escaped the comma, hyphen, and star to avoid their interpretation
as special characters. The tricky part is that since '\' is a special
character to the Java language, it needs to be escaped itself.

It's important to note that the "\\" resolution happens in the compiler,
and has nothing to do with regular expressions. For example, if you
were writing this same regexp in a properties file to be loaded by your
program, you might write:

sep.regexp = [:;\,\-\*]

Hope that makes sense.

--
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MindIQ Corporation