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• Java Scanner - next String until a | is found

  - by user1375883

  Currently I'm trying to read through some basic cells, in this format: +-------+-------+ | | | +-------+-------+ Now I need to get the string representation of the cell's contents and send it off to another method. The problem is that the cells have no pre-defined length. I'm reading these from a file, so my easiest option should be to just use the Scanner I already have set up. Problem is, I don't really know how for this case. I have a strong feeling that I need to use the pattern somehow, but I'm at a complete loss on how to do it. I could also probably just build it up somehow, but that strikes me as being painfully slow.

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• Does '[ab]+' equal '(a|b)+' in python re module?

  - by user1477871

  I think pat1 = '[ab]' and pat2 = 'a|b' have the same function in Python(python2.7, windows) 're' module as a regular expression pattern. But I am confused with '[ab]+' and '(a|b)+', do they have the same function, if not plz explain details. ''' Created on 2012-9-4 @author: melo ''' import re pat1 = '(a|b)+' pat2 = '[ab]+' text = '22ababbbaa33aaa44b55bb66abaa77babab88' m1 = re.search(pat1, text) m2 = re.search(pat2, text) print 'search with pat1:', m1.group() print 'search with pat2:', m2.group() m11 = re.split(pat1, text) m22 = re.split(pat2, text) print 'split with pat1:', m11 print 'split with pat2:', m22 m111 = re.findall(pat1, text) m222 = re.findall(pat2, text) print 'findall with pat1:', m111 print 'findall with pat2:', m222 output as below: search with pat1: ababbbaa search with pat2: ababbbaa split with pat1: ['22', 'a', '33', 'a', '44', 'b', '55', 'b', '66', 'a', '77', 'b', '88'] split with pat2: ['22', '33', '44', '55', '66', '77', '88'] findall with pat1: ['a', 'a', 'b', 'b', 'a', 'b'] findall with pat2: ['ababbbaa', 'aaa', 'b', 'bb', 'abaa', 'babab'] why are 'pat1' and 'pat2' different and what's their difference? what kind of strings can 'pat1' actually match?

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• How do I return a String from a for comprehension in Scala?

  - by Vonn

  Scala Newbie alert: basically I'm trying to do something like this: where I pattern match and return a String. scala> def processList(list: List[String], m: String): String={list foreach (x=> m match{ | case "test" => "we got test" | case "test1"=> "we got test1"})} :10: error: type mismatch; found : Unit required: String def processList(list: List[String], m: String): String={list foreach (x= m match{ I know I can set a var and return it after the for comp... but that doesn't seem to be the Scala way.

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• fastest way to perform string search in general and in python

  - by Rkz

  My task is to search for a string or a pattern in a list of documents that are very short (say 200 characters long). However, say there are 1 million documents of such time. What is the most efficient way to perform this search?. I was thinking of tokenizing each document and putting the words in hashtable with words as key and document number as value, there by creating a bag of words. Then perform the word search and retrieve the list of documents that contained this word. From what I can see is this operation will take O(n) operations. Is there any other way? may be without using hash-tables?. Also, is there a python library or third party package that can perform efficient searches?

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• The right way to implement communication between java objects

  - by imoschak

  I'm working on an academic project which simulates a rather large queuing procedure in java. The core of the simulator rests within one package where there exist 8 classes each one implementing a single concept. Every class in the project follows SRP. These classes encapsulate the behavior of the simulator and inter-connect every other class in the project. The problem that I has arisen is that most of these 8 classes are, as is logical i think, tightly coupled and each one has to have working knowledge of every other class in this package in order to be able to call methods from it when needed. The application needs only one instance of each class so it might be better to create static fields for each class in a new class and use that to make calls -instead of preserving a reference in each class for every other class in the package (which I'm certain that is incorrect)-, but is this considered a correct design solution? or is there a design pattern maybe that better suits my needs?

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• Generate multiple attribute?

  - by acidzombie24

  ATM i cant quiet imagine how this will work. I'm sure it can be done. I notice a pattern use in my attribute where i always use 3 specific attributes together. Take the below as an example [MyAttr(4, @"a"), MyAttr(41, "b"), MyAttr(45, "ab")] Mine is much more complicated but i would like to define one attribute with more params to generate the data above. How might i do that? Lets say my one attribute will look like this MyAttr2(4, 41, "a", "b"); //4+41=45, "a"+"b" = "ab" How might i generate the 3 MyAttr to apply to a class using MyAttr2?

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• What exactly is GRASP's Controller about?

  - by devoured elysium

  What is the idea behind Grasp's Controller pattern? My current interpretation is that sometimes you want to achieve something that needs to use a couple of classes but none of those classes could or has access to the information needed to do it, so you create a new class that does the job, having references to all the needed classes(this is, could be the information expert). Is this a correct view of what Grasp's Controller is about? Generally when googling or SO'ing controller, I just get results about MVC's (and whatnot) which are topics that I don't understand about, so I'd like answers that don't assume I know ASP.NET's MVC or something :( Thanks

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• Accessing array elements in PHP

  - by Elliot B.

  I have an array $aMethods whose print_r output is this: Array ( [0] => Array ( [pattern] => [return_media] => 1 [return_name] => ) ) I'm trying to access 'return_media' with this code: $iReturnMedia = $aMethods[0]->return_media; echo $iReturnMedia; Also, when I tried this: $iReturnMedia = $aMethods[0]['return_media']; I get an error stating: Cannot use string offset as an array in... But it's not working, $iReturnMedia comes back as blank. Could someone tell me what I'm doing wrong here?

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• How to test if Scala combinator parser matches a string

  - by W.P. McNeill

  I have a Scala combinator parser that handles comma-delimited lists of decimal numbers. object NumberListParser extends RegexParsers { def number: Parser[Double] = """\d+(\.\d*)?""".r ^^ (_.toDouble) def numbers: Parser[List[Double]] = rep1sep(number, ",") def itMatches(s: String): Boolean = parseAll(numbers, s) match { case _: Success[_] => true case _ => false } } The itMatches function returns true when given a string that matches the pattern. For example: NumberListParser.itMatches("12.4,3.141") // returns true NumberListParser.itMatches("bogus") // returns false Is there a more terse way to do this? I couldn't find one in the documentation, but my function sees a bit verbose, so I wonder if I'm overlooking something.

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• How to split row into multiple rows from the MySQL?

  - by user2818537

  I have a MySQL data table, in which I have more than 2 columns. First column has a unique value clinical trial value whereas second column has disease information. There are, in most of the cases, more than 2 disease names in one cell for a single id. I want to spilt those rows which cell contains two or more than two diseases. There is a pattern for searching also, i.e. small character is immediately followed by capital character., e.g. MalariaDengueTuberculosis like this. Suppose for these three diseases there is unique id, it should show like the following: NCT-ID disease 4534343654 Maleria 4534343654 Dengue 4534343654 Tubercoulsosis

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• How does ruby allow a method and a Class with the same name?

  - by Daniel Beardsley

  I happened to be working on a Singleton class in ruby and just remembered the way it works in factory_girl. They worked it out so you can use both the long way Factory.create(...) and the short way Factory(...) I thought about it and was curious to see how they made the class Factory also behave like a method. They simply used Factory twice like so: def Factory (args) ... end class Factory ... end My Question is: How does ruby accomplish this? and Is there danger in using this seemingly quirky pattern?

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• OverRiding Help

  - by user445714

  Few questions on over riding. I am interiting a method openRead from another class, the method is to be overridden so that the scanner class uses the provided delimiter pattern, which is referenced. I need to make use of the scanner class useDelmiter method method from another class [code] public boolean openRead() throws FileNotFoundException { sc = new Scanner(new File(fileName)); if (fileName != null) { return true; } else { return false; } } [/code] delimiter [code] protected final String DELIMITERS = "[\s[^'a-zA-Z]]"; [/code] I'm at a loss to how i over ride this using the constant delimiter.

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• Qt Should I derive from QDataStream?

  - by ShaChris23

  I'm currently using QDataStream to serialize my classes. I have quite a few number of my own classes that I serialize often. Should I derive QDataStream to create my own DataStream class? Or is there a better pattern than this? Note that these custom classes are used by many of our projects, so maybe doing so will make coding easier. Another way to phrase this question is: when a framework provides you with a serialization class, how do you handle serializing your own custom-type classes such that you don't have to remember how to serialize them everytime.

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• Submit form with our page refresh in Servlet

  - by John

  <script type="text/javascript"> $(document).ready(function() { $('.ibutton').click(function() { var ajaxdata=$("#country").val(); var value = "country="+ajaxdata; $.ajax({ url: "saveIt", type: "POST", data: value, cache: false, success: function(data){ alert("load success"); } });return false; }); }); </script> Friends, i followed every thing but its not working, upon submit, am unable to send the servlet request, saveIt is my url pattern,pls help me.

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• How much does precomputation (matching a series of strings and their permutations with a set number

  - by nipun

  Consider a typical slots machine with n reels(say reel1: a,b,c,d,w1,d,b, ..etc). On play we generate a concatenated string of n objects (like for above, chars) We have a paytable which lists winning strings with payout amounts. The problem is a wild character (list of wilds: w1,w2) which can replace {w1:a,b,c},{w2:a} ..etc. Is it really worthwhile to have all possible winning strings permutations with the wilds precomputed and used or simply at the time of occurance, generate all combinations with the pattern in hand accordingly. I did'nt really see much difference initially, but now if I need to scale the machine to handle 11+ reels with a much higher concentration of wilds than previously, I need to figure out the exact approach for this particular bit. Any ideas will be really appreciated :)

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• Cisco ASA log error "regular translation creation failed for icmp ..."

  - by Martijn Heemels

  Every few seconds our new Cisco ASA 5505 firewall is logging errors that I can't figure out with my limited Cisco experience. Severity Date Time Syslog ID Source IP Destination IP Description 3 Mar 25 2010 17:21:14 305006 8.8.8.8 regular translation creation failed for icmp src inside:10.10.0.200 dst outside:8.8.8.8 (type 3, code 3) 3 Mar 25 2010 17:18:37 305006 8.8.4.4 regular translation creation failed for icmp src inside:10.10.0.200 dst outside:8.8.4.4 (type 3, code 3) The logged inside IP is our internal DNS resolver, and the outside IP's are Google's public DNS servers. ICMP Type 3 Code 3 means "Port Unreachable" Our "outside" interface has a fixed IP and our "inside" interface is in the 10.10.0.0/16 subnet. The 'Inspect DNS' Service Policy is enabled, with the preset DNS inspection map. Furthermore there's an ACL that allows all inbound ICMP on the "outside" interface. I've spent hours trying to figure this one out, so any and all advice is welcome!

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• Multi Svn Repositories in Apache

  - by fampinheiro

  I have a set up with apache and subversion In the apache configuration i have <Location /svn> DAV svn SVNParentPath c:/svn </Location> Now i have multiple repositories a a_b a_c a_b_c a_b_d b and i want to map them as a/svn a/b/svn a/c/svn a/b/c/svn a/b/d/svn b/svn to do this without adding directives and restarting apache i tought of making this rules RewriteEngine On RewriteCond $1 !=svn RewriteCond $2 !=svn RewriteRule ^/([^/]+)/(.*?)/svn/(.*)$ /$1_$2/svn/$3 [N] RewriteRule ^/([^/]+)/svn/(.*)$ /svn/$1/$2 [L,PT] this way i rewrite them to /svn/a /svn/a_b /svn/a_c /svn/a_b_c /svn/a_b_d /svn/b The objective is that the client don't have the notion of this happening when a acess is made to a folder without trailing slash the mod dav return a redirect to the folder with the trailing slash exposing my internal url. can i rewrite the outgoing url ?!

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• Luminis and Google Apps Single Sign On

  - by J.Zimmerman

  We are a community college that is plodding forward with a Google Apps for Education implementation. There is support for Single Sign On and a fair amount of documentation for implementing it. We are looking to provide integration with our portal which is currently Luminis 3 (we are upgrading to Luminis 4 within a year). There is documentation available for Luminis specific integration, but apparently it is by request only. I have put the request in to SungardHE (where we license Luminis) and am waiting for a response. My questions are as follows... Is anyone here running Luminis? Have you tried to integrate it with a 3rd party email service like Google Apps for Education or Microsoft LiveEDU? If so, can you elaborate on implementation details above and beyond your Luminis installation and Google Apps setup? Looking for more of a general road map and differences between integration options with Luminis 3 and Luminis 4. Thanks!

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• Sudo yum seems to fail on CentOS, but works fine after sudo -i

  - by Aron Rotteveel

  I am currently having some trouble with yum through sudo. For some reason, it does not seem to work: aron@graviton [/var/log]# sudo yum clean all There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: /usr/lib64/python2.4/lib-dynload/datetime.so: failed to map segment from shared object: Cannot allocate memory Please install a package which provides this module, or verify that the module is installed correctly. It's possible that the above module doesn't match the current version of Python, which is: 2.4.3 (#1, Sep 3 2009, 15:37:37) [GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] If you cannot solve this problem yourself, please go to the yum faq at: http://wiki.linux.duke.edu/YumFaq The strange thing, however, is that it works fine when I gain root privileges through sudo -i first. Any ideas what might be causing this problem?

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• Can't figure out error in Cisco ASA log "regular translation creation failed for icmp ..."

  - by Martijn Heemels

  Every few seconds our new Cisco ASA 5505 firewall is logging errors that I can't figure out with my limited Cisco experience. Severity Date Time Syslog ID Source IP Destination IP Description 3 Mar 25 2010 17:21:14 305006 8.8.8.8 regular translation creation failed for icmp src inside:10.10.0.200 dst outside:8.8.8.8 (type 3, code 3) 3 Mar 25 2010 17:18:37 305006 8.8.4.4 regular translation creation failed for icmp src inside:10.10.0.200 dst outside:8.8.4.4 (type 3, code 3) The logged inside IP is our internal DNS resolver, and the outside IP's are Google's public DNS servers. ICMP Type 3 Code 3 means "Port Unreachable" Our "outside" interface has a fixed IP and our "inside" interface is in the 10.10.0.0/16 subnet. The 'Inspect DNS' Service Policy is enabled, with the preset DNS inspection map. Furthermore there's an ACL that allows all inbound ICMP on the "outside" interface. I've spent hours trying to figure this one out, so any and all advice is welcome!

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• Using mod_rewrite for a RESTful api

  - by razass

  Say the user is making a request to the following url: "http://api.example.com/houses/123/abc" That request needs to map to "/webroot/index.php" and 'houses', '123', 'abc' need to be able to be parsed out of the URL in that index.php. It also can't alter the http headers or body. There can be any number of variables after the domain ie) "http://api.example.com/houses/1234/abc/zxy/987" I think I already have all requests being sent to webroot using: <IfModule mod_rewrite.c> RewriteEngine on RewriteCond $0 !^webroot/ RewriteRule .* webroot/$0 [L] </IfModule> Which appears to be working but I am not sure if it is correct. But now I am at a loss as to how to take the next step as mentioned above. Thanks in advance!

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• .NET Framework 4.5 remote install via PowerShell

  - by user251297

  I am trying to install .NET Framework 4.5 to the remote Win2008R2 Server via PowerShell session in such way (user is in the server Administrators group): $session = New-PSSession -ComputerName $server -Credential Get-Credential Invoke-Command -Session $session -ScriptBlock {Start-Process -FilePath "C:\temp\dotnetfx45_full_x86_x64.exe" -ArgumentList "/q /norestart" -Wait -PassThru} And then I get this error: Executable: C:\temp\dotnetfx45_full_x86_x64.exe v4.5.50709.17929 --- logging level: standard --- Successfully bound to the ClusApi.dll Error 0x80070424: Failed to open the current cluster Cluster drive map: '' Considering drive: 'C:\'... Drive 'C:\' has been selected as the largest fixed drive Directory 'C:\aa113be049433424d2d3ca\' has been selected for file extraction Extracting files to: C:\aa113be049433424d2d3ca\ Error 0x80004005: Failed to extract all files out of box container #0. Error 0x80004005: Failed to extract Exiting with result code: 0x80004005 === Logging stopped: 2013/09/04 16:29:51 === If I run command locally at the server - all works fine. Start-Process -FilePath "C:\temp\dotnetfx45_full_x86_x64.exe" ` -ArgumentList "/q /norestart" -Wait

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• logon script not running

  - by Morten

  i tried make a logon script to map some network drives since it need more than homedir only but when i apply to script to "logon" in a GPO on server 2008 it doesnt run it on the pc when i logon. when i make a Gpresult -r it show as applied but it never ran the script. i tried run the script manual and that works fine. In Event Viewer in windows 7 it show an error "Event ID 1129" with this text in the general tap: The processing of Group Policy failed because of lack of network connectivity to a domain controller. This may be a transient condition. A success message would be generated once the machine gets connected to the domain controller and Group Policy has succesfully processed. If you do not see a success message for several hours, then contact your administrator.

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• Can't connect to MySQL server on '127.0.0.1' + Postfix

  - by Andrew Dakin

  I just installed Postfix and configured it to use MySQL. It wasn't sending any emails out after I did that so I checked /var/log/mail.log and it came back with this: postfix/trivial-rewrite[5283]: fatal: proxy:mysql:/etc/postfix/mysql-domains.cf(0,lock|fold_fix): table lookup problem postfix/cleanup[5258]: warning: AFCDC30437: virtual_alias_maps map lookup problem for [email protected] postfix/master[4761]: warning: process /usr/lib/postfix/trivial-rewrite pid 5282 exit status 1 postfix/proxymap[4126]: warning: connect to mysql server 127.0.0.1: Can't connect to MySQL server on '127.0.0.1' (110) In mysql-domains.cf I'm using: Hosts 127.0.0.1 I can connect to MySQL with this: mysql -u postfixuser -p But I can't connect this way: mysql -u postfixuser -h 127.0.0.1 -p maildbname Also when I run netstat -l it comes back with: tcp 0 0 localhost:mysql *:* LISTEN I've tried changing my hosts to: Hosts localhost But then I just get a socket error: postfix/cleanup[4870]: warning: connect to mysql server localhost: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' I also have this set up in the MySQL config file: bind-address = 127.0.0.1 I'm sure I'm missing something obvious, but I am pretty new to all this. Thanks! Andy

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• Samba: session setup failed: NT_STATUS_LOGON_FAILURE

  - by stivlo

  I tried to set up Samba with "unix password sync", but I still get logon failure. I am running Ubuntu Natty Narwhal. $ smbclient -L localhost Enter stivlo's password: session setup failed: NT_STATUS_LOGON_FAILURE Here is my /etc/samba/smb.conf [global] workgroup = obliquid server string = %h server (Samba, Ubuntu) dns proxy = no log file = /var/log/samba/log.%m max log size = 1000 syslog = 0 panic action = /usr/share/samba/panic-action %d security = user encrypt passwords = true passdb backend = tdbsam obey pam restrictions = yes unix password sync = yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . pam password change = yes map to guest = bad user [www] path = /var/www browsable = yes read only = no create mask = 0755 After modifying I restarted the servers: $ sudo restart smbd $ sudo restart nmbd However I still can't logon with my Unix username and password. Can anyone please help? Thank you in advance!

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