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Java Regex Q&A » Development » file 

1. Java file extension regex    stackoverflow.com

I'm trying to come up with a Java regex that will match a filename only if it has a valid extension. For example it should match "foo.bar" and "foo.b", but neither ...

2. Error reading log file with reg expression    stackoverflow.com

I am trying to read a log file with the content look like this:

127.0.0.1 -  - [17/OCT/2009:00:02:14 0000] GET xxxxxx  xxxx  xxx 
I tried the following reg exp ...

3. Regular expression for a valid filename without extension    stackoverflow.com

I need a regular expression pattern to check a string for alphanumeric(a-zA-z0-9) and also can contain underscore, hypen and dot this will be a file name so i dont want other character ...

4. List files with two dots in their names using java regular expressions    stackoverflow.com

I was trying to match files in a directory that had two dots in their name, something like theme.default.properties
I thought the pattern .\\..\\.. should be the required pattern [. matches any ...

5. Java - Reg. Ex. File Question    stackoverflow.com

I'm grabbing lines from a text file and sifting line by line using regular expressions. I'm trying to search for blank lines, meaning nothing or just whitespace. However, what exactly is empty ...

6. Regex for files in a directory    stackoverflow.com

Is it possible to use a regular expression to get filenames for files matching a given pattern in a directory without having to manually loop through all the files.

7. Difficulty with a simple regex for .obj files    stackoverflow.com

I'm trying to parse lines of the form:

command arg1[ arg2, ... argn]
such as:
usemtl weasels
or
f 1/2/3 4/5/6 7/8/9
Here is my regex:
^(\\w+)(( \\S+)+)$
When I parse the line "usemtl weasels", I get ...

8. JUnit test for specific file restricts giving false output    stackoverflow.com

I had requirement where user should add only specific type of links as part of the attachments. For example, if user wants to upload file of type pdf, the url should end with ...

9. I'd like to apply a regex efficiently to an entire file    stackoverflow.com

I have a complex regex, and I'd like to match it with the contents of an entire huge file. The main concern is efficiency, since the file is indeed very ...

10. How to apply regexp on file with pure ANT 1.8    stackoverflow.com

I want to apply regexp find/replace on file with pure ant (for crossplatform) Is it possible?

11. Using multiple regex to scan a file    stackoverflow.com

I have some code that takes in a URL, reads through the file and searches for Strings that match a given regular expression and adds any matches to an arrayList until ...

12. java regular expression getting values from a txt file    stackoverflow.com

Possible Duplicate:
Java read values from text file
Hi, i am new to java.. using regular expression i need to get values from the below text....
`trace` -
structure(list("a" = ...

13. Identifying java file with out Javadoc    stackoverflow.com

I would like to parse .java files which does NOT contain description about the class. I am trying it to do with perl, but not able to get the approprate regexp to ...

14. Trying to get some useful data from a log file with regex in Java    stackoverflow.com

I'm having trouble with regex, because I can only match some of my goals. I have a log file and I must match some of the items and write another txt file. ...

15. Java regex for image filename?    stackoverflow.com

I have to filter filenames to match only image (png,jpg,gif,bmp) files, is possible to make a such regex or do I have to have different regex for every file type? It ...

16. Regex in Java interpreting a source.c file    stackoverflow.com

I have to recognize some characters in a .c file. For now I have to recognize the #define line but I would like to exclude the comments after the definition. For ...

17. How to read very large file i.e 100MB as String    stackoverflow.com

My large_file.txt contains <tag> to represent data such as parents, childs and so on. My large_file.txt format is not xml format. I want to read large_file.txt size 100 MB as a ...

18. Regular Expressions on a .csv file    coderanch.com

Hi, i was wondering if someone could help me. i have a .csv file with a few useless lines of text at the beginning that i would like to ignore and just read in the lines that begin with numbers. My csv file is in the proper format in that the data is in their own separate columns. i tried to ...

19. Java Regex program for file content.    coderanch.com

A java program with "find and replace behaviour". It has to take the entire file and it has to replace the string in the file that matches the regular expression with another string. Result can be with in the file or any new file. I don't know much of Regex API for java, please can anybody attempt... A file can have ...

21. Regular Expression for .pgn file    coderanch.com

Regular Expression for .pgn file (Java in General forum at JavaRanch) A friendly place for programming greenhorns! Register / Login Java Forums Java Java in General Regular Expression for .pgn file Post by: Tirthankar Mukherjee, Ranch Hand on Jul 10, 2009 17:09:41 [Event "Sparkassen Gp 1"] [Site "Dortmund GER"] [Date "2002.07.11"] [Round "6"] [White "Shirov, Alexei"] [Black "Gelfand, Boris"] ...

22. How to specify multiple file suffices with regex    coderanch.com

Hi All, I would like to find out the correct regex to pickup multiple file suffices when looking for files that ends with .txt, .xml and pdf such as the following example: ( i ) if (currentFile.isFile() && currentFile.getName().endsWith(".(txt|xml|pdf).*$")) ( ii ) if (currentFile.isFile() && currentFile.getName().endsWith(".(txt|xml|pdf).*")) ( iii ) if (currentFile.isFile() && currentFile.getName().endsWith(".($:(txt|xml|pdf))")) ( iv ) if (currentFile.isFile() && currentFile.getName().endsWith(".($:(txt|xml|pdf)).*$")) ( ...

23. Image File Extension Regular Expression    java-forums.org

24. Regex inside a file    forums.oracle.com

Looks to me like you had it right the first time. By creating the Matcher ahead of time and using reset(String) inside the loop, you avoid the cost of instantiating a new Matcher for each line. Not that you would notice any difference in this case; a Matcher is a very lightweight object, and the cost of creating one is negligible ...

27. REGEX - Valid unix file name    forums.oracle.com

It might be of no meaning for eg create a file without a type, but if UNIX allows it then its valid, I am not going to use any kind of filter, to try to get whether I think its valid or not, so the best practice is to mark a file as valid if UNIX uses even if it makes ...

28. RegEx Error for Huge File .. Please help , Its Urgent    forums.oracle.com

No no This is not a XML IT IS A .TMX FILE I have to search the file and replace its some contains but file is too huge Code is working for first many segments and then fails with the exception I required all the inner expressions to get the exact replacable data Thanx, Vinayak

29. filenameFilter regexp for exclude a file    forums.oracle.com

I have a little method which clears a directory by deleting all its content. Now I would like to be able to use a regular expression to control what I want to delete. Basically I want to delete all but one single file. For instance: suposse I have a directory with following files: foo1.txt foo2.ana foo.wav another.txt this_do_not_erase.wav another.wav

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