behavior « Development « Java Regex Q&A

1. Question about a weird Java regex behavior    stackoverflow.com

I'm working on a regex that could match the leading digits and . in a String. But it seems just not working correctly. The regex I'm using is

"^[\\.\\d]+"

2. Java regex alternation operator "|" behavior seems broken    stackoverflow.com

Trying to write a regex matcher for roman numerals. In sed (which I think is considered 'standard' for regex?), if you have multiple options delimited by the alternation operator, it will ...

3. Java RegEx and linebreaks - bug or expected behavior?    stackoverflow.com

I'm trying to interpret a multiline string with RegEx and just found that matching will fail if the string contains newline characters. I'm NOT using using MULTILINE mode, because I'm not ...

4. Is that a normal Java regex behavior?    stackoverflow.com

I found this in some code I wanted to optimize. Here is the snipet:

tempString = bigBuffer.replaceAll("\\n", "");
tempString = tempString.replaceAll("\\t", "");

tempString ...

5. different behavior with regex on linux vs windows    coderanch.com

nevermind! On windows I was running within eclipse. In linux I was running bins from a jar. I had renamed an old version of the jar, and didnt realize it would still look in this jar in the lib folder even though it had a different name. And this other jar file also had an xml conf file (by accident). On ...

6. Weird behavior with regular expressions    coderanch.com

7. Regular expression and some strange debugger behavior    forums.oracle.com

8. Java RegEx behavior problem    forums.oracle.com

[0] => Array ( [0] => : [1] => :a2 [2] => :a3 [3] => :a4 [4] => :b1 [5] => :ffff [6] => :0000 [7] => :0000 ) So, element ":" is now there, but element "" at the beginning is missing. I tried so long to find an answer about why PHP has another result as Java for the ...

9. Does Java regex support this behavior?    forums.oracle.com

10. RegExp behavior    forums.oracle.com