Regex - Replace Space In A String At Random Position In .net?
Mar 1, 2012
I want to select a random space in a string and replace it with a word (%word%) but there is a problem. The position cannot be fixed as i want it to be inserted at a random break. Few things which iam considering :
1)break the string at a space and merge it with the word
2) find a random space and replace it with the word. I like this point and so far all i have is break the selectedtext into string array and then iterate over each line. But i don't know how to find a random string position? Any short and sweet code please?
If (rtfArticle.SelectedText.Length > 0) Then
Dim strArray As String() = rtfArticle.SelectedText.Split(New Char() {ChrW(10)})
For Each str3 As String In strArray
[code]....
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Apr 21, 2011
I want to Replace a string with space here string is comming from DB, here string looks like as followes (This is my first name : "rama" and my second name : "krishna") so now i want to replace the above String as ( This is my first name : rama and my second name : krishna ) So i want to replace " this with Space..
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Jun 25, 2009
I have a long string of HTML code that contains several quotes around objects in the string. I have a Regex.Replace() function to change the "img src" tag, due to the way its stored in a database.
Here is my string: <p><strong><u><font color="#cc0099">RICH TEXT BOLD UNDERLINE. PICTURE TO APPEAR BELOW</font></u></strong></p><p><strong><u><font color="#cc0099"/></u></strong></p><p><img src="/inlineimages/WorkOrder/6/1245981403232.jpg"/> </p><p /><p>W00T!</p>
[Code].....
Notice how the "<font color=" has single quotes around its value, and "<img src=" has single quotes, with a double quote jammed in between?
Also, is there an automated way to go from my initial string, to the "Dim input As String" I created? I had to manually type that out, editing the quotes just to try and make it work.
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Apr 29, 2011
Hello all, im now trying to create a way to replace the last char of a string with "4"[code]....
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Dec 12, 2011
I am reading a csv file in VB.net and saving the line to a SQL database. At a later point in my code, the SQL line is retrieved in the application, and the Split function is used to get 'field' values. The Split is done taking comma as the separator. The application processes many other files (including excel), and the split function is used for all of them. The problem I am now facing is that one of the csv files I read, has a field value that starts with " followed by multiple values separated by a comma and ends with another ". The normal reading of the csv file results in each of those single field values is taken to be a separate value.
An example line is:
Elker,MissB,"Bus, Taxi, Train, Ferry, Parking, Toll",800253
Where there should only be separated to 4 columns, they get separated to 9 columns instead. What I want to do is replaced the commas after 'Bus' and until 'Toll' with a '?' instead. I have tried using Replace, including the overloaded one with starting position, but it ends up replacing ALL the commas in the line with '?'
Attempt 1:
If vstrLine(intStartPos) = "," Then
strRetVal = Replace(vstrLine(intStartPos), ",", "?")
end if
Where vstrLine is Elker,MissB,"Bus, Taxi, Train, Ferry, Parking, Toll",800253
and intStartPos is the first instance of a comma after the "
It returns only the '?' and not the string with 1 comma replaced by '?'
Attempt 2:
If vstrLine(intStartPos) = "," Then
strRetVal = Replace(vstrLine, ",", "?", intStartPos)
end if
It returns a string with all commas replaced with '?'
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Oct 6, 2010
Using VB or C#, I am getting a string of variable length from the database. This information is sensitive information that only certain users will be able to see.I have two cases that will use the same logic (I think).scenario 1: replace all characters with xscenario 2: replace all characters with x except the last 4 characters (assume length > 4 - this check is being done).I thought that this would be easiest using Regex.Replace(input, pattern, replacestring). As opposed to a lot of string handling with substrings and forcing a length of 'x's.
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Mar 5, 2009
I've been working on this RegEx for the past day or so and I think I have it worked out so that it returns the data I want. First a little background.I have a content editor that users will be able to edit web pages. They can format text, add links, etc.. standard content editor stuff. When they click save, the editor provides the ability to get the content (editor.Content) and put it into a string. What I want to do is get any links (<a> tags) and find out if they are internal or external links and if they are PDF files.
Here is the Expression I've come up with:
<a[^<>]*hrefs*=s*[""'](?<domain>https?://[^/s'""]*)*/?(?<path>/?[^s""]+?)?[[>""']
With this, I am able to separate the domain (if it has one) and the path out. Then, I loop through the matches...
dim matchColl as MatchCollection = Regex.Matches(editorContent, regExString)
For Each m as Match in matchColl
If m.Groups("domain").value <> myInternalDomain and m.Groups("domain").value <> "" then
'this is an external domain... do some stuff
[code]....
My question is this... the parts where I 'do some stuff' to the values, what would be the best way to get that back into my 'editorContent' string? I could probably put the editorContent into a StringBuilder and do a whole bunch of replaces on it, but is that very efficient?So, for example, with the PDF, I want to specify that it open in a new window (target="_blank") and for the external URL, add some javascript code into the onclick attribute.
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May 5, 2009
I have text file with a row like this:
[Code]...
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Jul 20, 2009
I'm trying to replace all the carriage return characters in a string obtained from a multi line text box in a Windows Form with the string ", <BR>" so that when I use the string in some HTML it displays correctly.
Function Blah(ByVal strInput As String) As String
Dim rexCR As Object
rexCR = CreateObject("VBScript.RegExp")
[code]....
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Apr 5, 2012
I am having an issue where I am using regex.Replace to replace part of a string. The basic idea is that I want to capture the beginning of the string then replace the end of the string with a value from code. For an example pretend I have a string that says "Test Number " followed by number and I want to increment that number. I capture the "Test Number " but when I try to concatenate that capture with the new number it treats the capture ($1) as a literal and replaces the entire string with $1[new number].
[code]...
This will output "We are on Test Number 2", as expected. how I can use a variable in the replacement string portion of the Regex.Replace when including a captured group?
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Jul 13, 2009
I am trying to think of a regex replace to replace double quotes with nothing. Example:
hello("hi there") would become hello(hi there)
"hi" would become hi
"example "3" would become example "3
-edit Maybe an easier way to explain this is, replace all " that do not have a backslash before them.
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Jun 21, 2012
I'm creating a program in VB.NET to output multiple images. Some images will have the same file name. If there is multiple files with the same name I want to add "_1_" to the end of the file name. If the "_1_" file already exists I want to increment the 1 to be "_2_". If this file already exists I want to continue incrementing the number ultil it doesn't exist. So for example "filename", filename_1_", "filename_2_", etc. Here is the code that I have tried
[Code]...
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Mar 10, 2009
I am trying to filter out all unwanted characters from a string. All I want in the string is letters A-Z, numbers 0-9 as well as comma (,) plus (+) and quotes (").I figured how to do the letters and numbers, but the 3 special characters are giving me a problem. I also tried with the Chr(34) equivelant for the " sign, but no luck, as and " or , messes up the way the code is read. Here�s what I have so far, but it only works for A-Z and 0-9:
STR = System.Text.RegularExpressions.Regex.Replace(STR, "[^A-Z, 0-9, Chr(43) ]", "")
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May 30, 2012
I want to write a regex to verify inputs. The inputs have the following format:
N. Crystal
O. J. Faucon
A. V. E. David
"^[A-Z. ]*+([a-zA-Z])*$" is not working. How can I match the above examples?
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Jun 2, 2011
How can I parse out undesireable characters from a collection of data?I am working with existing VB.NET code for a Windows Application that uses StreamWriter and Serializer to output an XML document of transaction data. Code below.
Private TransactionFile As ProjectSchema.TransactionFile
Dim Serializer As New Xml.Serialization.XmlSerializer(GetType (ProjectSchema.TransactionFile))
Dim Writer As TextWriter
Dim FilePath As String
Writer = New StreamWriter(FilePath)
[Code]...
Because TransactionFile cannot be converted to String I get a "Conversion from type 'Transaction' to type 'String' is not valid" message.Bottom Line = How can I replace CRLF with a space when it shows up in TransactionFile data?
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Mar 29, 2012
The original string is like this: sLine = " 1 Screen"
What I want is this: sLine = "000001 Screen" (I do want to keep the space between the number and the text, so that is why its not just a replace) What I see with the following code is this: sLine = "01 Screen" Some how the replace does the first char, but then is not adding the zeros to the rest of the string, its just removing them (somehow I think it must think integer? [Code]
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Mar 30, 2009
How could I have streamwriter write a , terminator for every space?
For example if I have a line that reads "Hello World!"
I would like streamwriter to write Hello , World
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Apr 8, 2010
I'm still in the learning stages sorry, and this is probably simple to most of you but I couldn't find the answer through searching.I'm trying to work out how to replace each successive space in a piece of text with a single character from "% $ ! @ #" in that order, and loop.
Easier to explain with an example;say I have the text: "This is a piece of text I am using as an example."
It should end up looking like this: "This%is$a!piece@of#text%I$am!using@as#an%example."
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May 15, 2012
I have a text file like below[code]..
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Oct 14, 2009
How would I do a replace to replace a double quote with a blank space
What would I put in the ( ):
NameValueArgs.Item(i).ToString().Replace( )
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Sep 27, 2006
how can i replace the enter key event present in an ASP variable with a white space i tried a lot but bad luck...Actually there is no character like vbCrlf or <br> in the string actually I am getting ...it is an enter key event present in the string taken from a textarea ..... My attacks on this issue:
replace(request("textarea"),"vbCrLf"," ")
replace(request("textarea"),"&vbCrLf"," ")
replace(request("textarea"),"Chr(10)"," ")
[Code]....
Is there any third party component that has to be used to solve the problem...
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Mar 26, 2012
I'm using the following VB.net Code to find phone numbers in HTML and make them "clickable":
Regex.Replace(pDisp.Document.Body.innerHTML, "([0-9+ ]{3,6}[s]{1,1}[0123456789 -/]{4,15})", "<a href=http://DIAL/$1>$1</a>")
There appears an issue if the numbers contain white spaces, for example:
089 12233 455
This will be replaced with:
<a href=http://DIAL/089 12233 455>089 12233 455</a>
Is there a way to get
<a href=http://DIAL/08912233455>089 12233 455</a>
instead?
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Nov 3, 2010
How can I convert [b]xxx[/b] to <strong>xxx</strong> using VB.NET Regex.Replace()?
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Jun 23, 2009
I have a text file like this
4.5 28 Red (T1 ) [1 12.86 53.8] 229111 -28275 198452 -1309 | 11.0 28 Red (2 13.10 04.0) [T1 ] 130611 2948 229111 28275
1.5 28 Blue (T2 ) [1 07.06 59.1] 191611 51225 190456 39339 |
[code].....
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Aug 15, 2011
I am trying to replace text in my xsl file. I have to replace all the http and https. But I can leave any links that start with <a href>
Ie; http://www.google.com has to replaced. But < a href="google.com">google.com</a> has to remain as it is.
I am using regex to find all the http(s) and a hrefs in the text. I am struck here.
My code is,
Dim href As New Regex("(<a.*?>.*?</a>)", RegexOptions.IgnoreCase)
Dim hrefs As New Regex("http(s)?://([w+?.w+])+([a-zA-Z0-9~!@#$\%^&*()_-=+\/?.:;',]*)?", RegexOptions.IgnoreCase)
[Code].....
I am trying to use Regex.Replace to replace my https. But I am unable to write the evaluate function.
My regex.replace replaces all the values with a single value.
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Aug 20, 2009
System.Text.RegularExpressions.Regex.Replace(item.Summary.Text, ????, "")
What would I put in the? to get only the domain from a URL: EG [URL] should turn into "Google".
I don't know how the regex works to make it do that. Would it be like "*/*..*" or something?
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Sep 26, 2010
Dim ab As String = "aaaextBox1.Text = Regex.Replace(TextBox1.Text, "Dim " + ab + " As String", "aab")That is the code I am using now. Problem is that it's output is only "aab".Is there any way to keep the structure, so it would be "Dim aab As String" instead of only "aab"?
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Nov 25, 2009
I am using VS2008. I worked on this problem for a time, but I was not successful doing it. Below is the VS file.I need to produce a grid of cells and have some random features as shown below which is an example of a world of (500 x 500) units (or any other size and grid size). It contains three areas (of 11 cells, Value of each cell = 108), two green areas (of 8 cells, Value of each cell = 137) and one river. The start point of the river should start from one of the world edges and finish to another one. Please note that number of feature could increase or decrease according to user inputs.The question is, how can I produce these features randomly? To clarify the question, I will read the number of areas from a form. I need these features so that the number of cells should be distributed randomly beside (attached to) each other in the world. The rivers occupy one sequential grid line. My problem is how can I randomly generate the features according to number of cells??
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Jul 27, 2009
I need to use RegEx.Replace to replace only certain named groups in my input string.
So I might have a pattern like:
"^(?<NoReplace>.+)(?<FirstPeriod>(d{2})|CM|RM|PM|CN|RN){1}(?<LastPeriod>(d{2})|CM|RM|PM|CN|RN){1}((#(?<NumberFormat>[#,.+-%0]+))*)$"
Tokens such as CM, RM are being replaced using Regex.Replace with a MatchEvaluator. However, this should only be replacing characters in the FirstPeriod and LastPeriod groups.
Example input:
"FIELDCNS 01CM"
Desired output:
[Code]....
Is this possible or am I best just pulling out the parts I want to replace and re-assembling afterwards?
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Jun 3, 2011
I'm wanting to search a RTB for all X coordinate values and convert them to SI mm units.
I have two issues: 1. My code is stopping after the first instance of match.success, I'm guessing i'm using nextmatch incorrectly? I have also tried matchcollections with no success.
2. I fear once we get it progressing to the next X value, any multiple X values with the same dimension will be replaced with my replace command, causing the new value to be converted again.
Dim MatchObj As Match = Regex.Match(RichTextBox1.Text, "[Xx](?<X>(d*.{1,1}d{1,4}))(s)*")
If MatchObj.Success Then
[Code]....
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