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Search found 4498 results on 180 pages for 'expression'.

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• In Python, how do I do a string replacement AND retrive the replaced substring?

  - by mike

  In Perl, I would write: $x = "abbbc"; $x =~ s/(b+)/z/; print "Replaced $1 and ended up with $x\n"; # "Replaced bbb and ended up with azc" How do I do this in Python -- do a regular-expression string replacement and record what it was that got replaced?

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• Converting html entities into their values in python

  - by tipu

  I use this regex on some input, [^a-zA-Z0-9@#] However this ends up removing lots of html special characters within the input, such as 227;, #1606;, #1588; (i had to remove the & prefix so that it wouldn't show up as the actual value..) is there a way that I can convert them to their values so that it will satisfy the regexp expression? I also have no idea why the text decided to be so big.

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• OGNL thread safety

  - by Dewfy

  I'm going to reuse OGNL library out of Struts2 scope. I have rather large set of formulas, that is why I would like to precompile all of them: Ognl.parseExpression(expressionString); But I'm not sure if precompiled expression can be used in multi-thread environment. Does anybody knows if it can be used?

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• Alter a function as a parameter before evaluating it?

  - by Shane

  Is there any way, given a function passed as a parameter, to alter its input parameter string before evaluating it? Here's pseudo-code for what I'm hoping to achieve: test.func <- function(a, b) { # here I want to alter the b expression before evaluating it: b(..., val1=a) } Given the function call passed to b, I want to add in a as another parameter without needing to always specify ... in the b call. So the output from this test.func call should be: test.func(a="a", b=paste(1, 2)) "1" "2" "a"

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• how to overload the += operator with the operands of different types (if possible)

  - by Veer

  Hi, Instead of having an add() method in the repository, I would like to overload the += operator so that the expression _repository += myModel; will insert myModel into the database(after i submit changes) I know that the objects of different type cannot be used in operator overloading. Still want to know if there is some alternate ways to accomplish this Any help?

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• htaccess in php

  - by Badshah

  I am using htaccess in my projec.there is login section i want to show the my account page as http:///www/domain.com/username . But there is a problem because i have also made a cms which is open as http:///www/domain.com/cms . Although i have validate the user name But there is same page open when i open the cms or user profile page. I have pass the regular expression in htaccess but stil not required result is come

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• Interrogating Java source code

  - by VibeofBoston

  I have a Java source code that I need to interrogate and apply security policies [for e.g. applying CWE] I have couple of ideas, for starters using AST and then travel thru the tree. Others include using regular expression. Are there any options other than AST or regex that I could use for such process.

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• Oracle 10g express edition import

  - by Jasim

  How can i import a DMP file into my oracle 10g expression edition database? I tried with imp but its showing an error: IMP-00010: not a valid export file, header failed verification IMP-00000: Import terminated unsuccessfully How can i solve this?

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• Regex Question to Grab Keys

  - by Braveyard

  Hello, I have this kinda template text : Hello {#Name#}, Thanks for coming blah on {#Date#} and we love to see you again here with {#President#} So I am trying to get {#...#} templates parts and put them into an array. But my expression didn't work : \b(?<=\{\#)(.*)(?=\#\})\b The result became something like this for this sample text : {#Something#} Hello {#Brand#} Result : Something#} Hello {#Brand

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• DRY up Ruby ternary

  - by Reed G. Law

  I often have a situation where I want to do some conditional logic and then return a part of the condition. How can I do this without repeating the part of the condition in the true or false expression? For example: ClassName.method.blank? ? false : ClassName.method Is there any way to avoid repeating ClassName.method? Here is a real-world example: PROFESSIONAL_ROLES.key(self.professional_role).nil? ? 948460516 : PROFESSIONAL_ROLES.key(self.professional_role)

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• .Net Linq - Join together all item of a List

  - by Melursus

  How can I write a Linq expression that select item from a List and join them together ? Example IList<string> data = new List<string>(); data.Add("MyData1"); data.Add("MyData2"); string result = //some linq query... I try data.Select(x => x + ","); //result = "MyData1, MyData2"

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• Draw chart for every row of the dataset in SSRS. Loop through dataset rows

  - by Rushme

  Hi, Could anyone help me with how can we create chart for every row of the dataset in SSRS (rdl) ! Suppose the dataset has the following data Name Age ------- ------- A 25 B 26 C 22 3 chart needs to be drawn for the x-axis/y-axis combination of A/25, B/26, C/22. How can I loop through rows of the dataset. And how can I restrict the chart to that particular data point. What would be the xsl expression corresponding to this functionality.

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• Help with SQL query in C#

  - by DanSogaard

  I'm trying to rename the columns. The syntax should be the column name between double quotes incase of two words, like this: SELECT p_Name "Product Name" from items So I'm trying to do it in C# code like this: string sqlqry1 = "SELECT p_Name \"Prodcut Name\" from items"; But I get an error: Syntax error (missing operator) in query expression 'p_Name "Prodcut Name"'. It seems am having somthing wrong with the quotes, but I can't figure out.

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• Whats going on here can't you compare if(mychar1 == 'ä' || mychar2 == 'Ä') in C++?

  - by Chris_45

  Im trying to compare these two chars but on win 32 Visual Studio 2008: if(mychar1 == 'ä' || mychar2 == 'Ä') Erromess: Debug Assertion Failed! File:f\dd\vctools\crt_bld\self_x86\crt\src\xstring Line 1575 Expression: string subscript out of range

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• Find all <a>s to who's href points to an image with XPath 1.0

  - by Jeffrey Aylesworth

  First, I can assume that all urls that end with jpeg, jpg, bmp, png or gif are images, and others aren't. I thought of, and tried two solutions: Matching the regular expression .(jpe?g|bmp|png|gif)$ Using ends-with to check each separately But, it appears that neither of these exist in XPath 1.0, or at least, they don't exist in Firefox (I am writing a greasemonkey script, so it is only important for the path to work in Firefox).

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• How do you explain closure to a 5 year old?

  - by Sandbox

  I am currently looking at lambda expression and the word closure keeps coming. Can someone explain it to me in real simple language.

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• Good starting point to learn regular expressions.

  - by Jeremy Rudd

  I'm good at learning new languages and platforms, though whenever I try to learn Reg Ex I cannot make sense of it. I once even used the Regular Expression Designer to try and put some together. What's a good starting point to understanding what looks like the only rocket-science programming language in the world? Links to articles, books or anything else that could help me get my grounding would be appreciated.

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• Using grep to find all emails

  - by AntonAL

  Hi, How to properly construct regular expression for "grep" linux program, to find all email in, say /etc directory ? Currently, my script is following: grep -srhw "[[:alnum:]]*@[[:alnum:]]*" /etc It working OK - a see some of the emails, but when i modify it, to catch the one-or-more charactes before- and after the "@" sign ... grep -srhw "[[:alnum:]]+@[[:alnum:]]+" /etc .. it stops working at all Also, it does't catches emails of form "[email protected]" Help !

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• Simple Regex Question

  - by Jim B

  Hey Everyone, I need to search a bunch of files for anything that contains either "tblPayment" or "tblInvoice" I also want to match any tables named "tblPaymentMethod", "tblInvoiceItem", "tblInvoicePayment" Anybody care to help me out with how to write a regular expression for this? Thanks again!

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• PHP something faster than explode to get filename from URL

  - by FFish

  My URL's can be absolute or relative: $rel = "date/album/001.jpg"; $abs = "http://www.site.com/date/album/image.jpg"; function getFilename($url) { $imgName = explode("/", $url); $imgName = $imgName[count($imgName) - 1]; echo $imgName; } There must be a faster way to do this right? Maybe a reg expression? But that's Chinese to me..

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• Python matching some characters into a string

  - by roaksoax

  Hi All I'm trying to extract/match data from a string using regular expression but I don't seem to get it. I wan't to extract the highlighted characters from the following string: /xubuntu/daily/current/lucid-alternate-**i386**.iso This should also work in case of: /xubuntu/daily/current/lucid-alternate-**amd64**.iso Thanks a lot for your help.

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• Switch Statement Case Evaluation?

  - by TheDarkIn1978

  i would like to have cases that evaluate the expression in my switch statement. is this not possible? switch (zSpeed) { case (zSpeed > zMax): this.zSpeed = zMax; break; case (zSpeed < 0): this.zSpeed = 0; break; default: this.zSpeed = zSpeed; }

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• How to achieve an eagerly loaded, filtered child collection with the NHibernate criteria API

  - by vakman

  Is it possible to use the criteria api to load a set of parent objects along with a filtered, eagerly loaded set of child objects? I'm trying to query a list of categories and at the same time load the categories products that start with the letter M. The query below gives me the results I want but the Products are not eagerly loaded, that is NHibernate performs additional queries when I enumerate the Product collection: var categoriesWithProducts = session.CreateCriteria<Category>() .SetFetchMode("Products", FetchMode.Eager) .CreateCriteria("Products") .Add(Expression.Like("Name", "M%")) .List<Category>(); What am I missing here?

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• GCC doesn't like C++ style casts with spaces

  - by uj2

  I am porting some C++ code to GCC, and apperantly it isn't happy with C++ style casting when sapces are involved, as in unsigned int(-1), long long(ShortVar) etc... It gives an error: expected primary-expression before 'long'. Is there any way to make peace with GCC without going over each one of those and rewrite in c-style?

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• NotePad++ - Why Does Finding ^ Not Work

  - by ChloeRadshaw

  I am trying to move away from TextPad and I just cant get reg expressions like ^ and $ to be replaced. I have definitely ticked the regular expression box What am I doing wrong

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