C# - Finding A Repeating Pattern In A Given String?
Jan 4, 2012
I have a networkstream (using C#/VB.NET). while on reading values coming like this:
&% 68 kg K A&% 23 kg K A&% 174 kg K A &% 68 kg
&% 34 kg K A&% 2334 kg K A&% 68 kg K A &% 68 kg K A
&% 2348 kg K A&% 78 kg K A&% 28 kg K A&% 68 kg
The numerical(weight) value will be continuously varying.
Every time i am reading the starting of the stream differs. But the pattern remains the same. How to split that into '&% 78 kg K A' which represents one set.
How to extract the weight value from this stream using Regex or any other methods?
View 1 Replies
ADVERTISEMENT
Nov 14, 2011
Im trying to make an on access file scanner, YES I know that C++ is better, but this is a concept of thought, trying to challenge myself to see if its possible in vb.
Anyways, I have a list of Hex definitions, my question is, how can I index this list so I can access the definitions faster. A definition looks like this:
Eicar.Test.File.a=58354f2150254041505b345c505a583534285
The part after the equals sign is the HEX signature, while the first part is the name of the definition.
Basically what I am trying to do is index them somehow where I can scan faster, as I have over 60,000 definitions and I have to split each individual one in order to get the signature name. It takes about 45 seconds or so to scan a 500KB file. I need it to be WAY faster.
View 1 Replies
Jul 22, 2009
I'm trying to find a pattern in a string, I guess is very easy but I'm terrible in regular expressions. I have a big text and I need to find all the next type of pattern:
{a|b|c}
That can be also something like this: {a|b|c|s|f|f|ft|r} or any number of items inside but at least 2 items so the pipe symbol is another key. Is this an easy regular expression? I'm using vb.net 2005.
View 4 Replies
Jan 18, 2010
i just want to know if there is a way to implement constraint for parameters with a repeating pattern. For that i meant something like this
ParamArray pattern as Integer()
if i need an integer, and any amount of the "pattern" (the pattern here is one integer). so basically the pattern accepts 1 integer and multiples of 1 integer, meaning 2 integers, 3 integers so is there a way to upgrade this so we can have this pattern:
Integer, Boolean
and any valid combinations for this pattern will include
Integer, Boolean, Integer, Boolean
Integer, Boolean, Integer, Boolean, Integer, Boolean
etc, etc
currently the only way i can think of is to wrap Integer and Boolean as 1 object and apply pattern 1, but i was searching for a better alternative?
View 27 Replies
Aug 1, 2010
I want my app to look for a byte pattern in a process and return the first memory address of that byte pattern. I know I should use ReadProcessMemory and a loop, but I don't really know how to create a function for that,
View 2 Replies
Nov 28, 2011
As a continuation of my other thread, "Finding A Pattern without a string Array (http:[url]....)", I would like to continue asking questions about enhancing a scanner with a few things:
1. Here is my code for finding signatures in a file:
'First the Signature Class:
Interface Signature
End Interface[code]......
View 2 Replies
Jun 30, 2010
I have built a blog platform in VB.NET where the audience are very young, and for some reason like to express their commitment by repeating sequences of characters in their comments.
Examples:
Hi!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
LOLOLOLOLOLOLOLOLOLOLOLOLLOLOLOLOLOLOLOLOLOLOLOLOL
..and so on.
I don't want to filter this out completely, however, I would like to shorten it down to a maximum of 5 repeating characters or sequences in a row.I have no problem writing a function to handle a single repeating character. But what is the most effective way to filter out a repeating sequence as well?This is what I used earlier for the single repeating characters
Private Shared Function RemoveSequence(ByVal str As String) As String
Dim sb As New System.Text.StringBuilder
sb.Capacity = str.Length
[code]....
View 1 Replies
Nov 13, 2011
I need to write a function to find the first non-repeating character in a string in VB.NET. Does the code below look ok?
Module Module2
Sub Main()
' Unit test
[code]....
View 3 Replies
Sep 13, 2010
I want to make all possible combination of each and every words from a entered string (without repeating). I found on net but can't get code for word combination instead I got character combination.
View 8 Replies
Jun 10, 2011
I have this code:
Public Class Form1
Private HowManytoGenerate As Integer
Private HowManyDone As Integer
[code]...
The batch section should generate a new random value and write it every time it do the loop, but...It is repeating values. There are more than one line with the same value. What I'm doing wrong?
View 2 Replies
Mar 21, 2012
How would I remove an alpha-numeric sub string in a string that meets these rules:
J111DD
L###LL
l = Leter
# = Number
View 1 Replies
Jul 6, 2010
Is there a way to search for a string pattern in a string ?
i have 1000 of strings and example of one is - 'won 2 races in town, 1998, and then moved to'i wish to search for the ", ####," as all the strings are in the same format (note that the year is different every time hence why not using the instr)
View 2 Replies
May 4, 2010
I am struggling to extract a 'matched' string and wonder if I am missing something simple.Let's say my code finds a string 'abcdefgh -john. smith 1234567 a123-a-123-f the last search, abc, 123 ;'I am searching this string for the pattern '[a-z]###-[a-z]-###-*'I know this text appears in the string as 'a123-a-123-f'I would like to be able to return the matched string value 'a123-a-123-f' to a variable.If I place a wildcard * in front of the pattern, it will find the text, but obviously everything else in front of it, is there a way that somebody can think of to strip the variable without using the preceding wildcard?I am not worried about the wildcard on the end of the string as I can strip back to the last space.[code]
View 3 Replies
Jul 28, 2011
Could someone please guide me on the correct format string to display a time in the following format? [code] Is there one format string I can use to accomplish this?
View 3 Replies
Jun 19, 2012
I am trying to parse a string that contains known and unknown characters.here is an example:
[1]Tue Jun 19 17:14:15 2012, 48:17:4C:00:00:74, 4.8, 5449,816324, 26, 31397, 160855, 30775030, 29962782, 812248, 2394476, 71619, -44, -67, 46, -60, 51, 0, 86468, 2547055, 4687358, 44278, 4593, 65076, 65191, 65106, 65166, 65108, 64552, 64572, 64512, 5.1, 2548502, 4690906, 520, 0, 0, 0, 36, 2412
[code].....
The known part is the [0] or [1] or whatever number in the brankets.the unknown part is the rest of the message.So if i have this string i want to cut it to smaller substrings that start with [ and end before the next [ .To make it more tough, sometimes, before the next [ there is another message that comes like: Jun 19 17:13:40 2012 timestamp And after that it continues with the next [
View 10 Replies
Mar 28, 2012
I've got an issue with a program I am writing. The specific issue is replacing characters in a parent string by finding, and matching, specific characters within it that are parsed from an external xml file. It's for a chat-like client.Here's the 2 classes I am using to pull the emote strings, titles, and id from external XML:
Imports System.Text.RegularExpressions
Imports System.Xml.Serialization
Public Class emote
[code].....
View 1 Replies
May 10, 2011
I need to be able to serialize a class into a string, and I know of 2 patterns:
1) (normal) Serialization pattern
2) Proxy Serialization pattern
I've read [URL] (the only website in google that talks about the proxy-serialization pattern) and still cant find the advantage or benefit of using this pattern. Could someone explain what exactly is the proxy serialization pattern, or rather exactly what problem does the proxy-serialization pattern solves that the normal-serialization pattern doesn't solve?
View 1 Replies
Oct 26, 2010
I want to search for a String Pattern in a Binary File (Binary File is not 100% plain text). Here is the pattern:
"**_*_*_*"
or
"111_11_11_112"
View 7 Replies
Mar 15, 2010
Private Sub txtname_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtname.TextChanged
myConnection.Open()
[CODE]...
I want to four digit code like Abneesh than first query finding max of A and second string take string A than code generate like A001----------A999
View 1 Replies
Mar 2, 2009
i have a string array that i want to output to a text file. the array size is 10000. i fill the array starting from 0 with some strings. at the end, i only want to show the array from index 256 to the last array that is not empty (for eg. if the array is filled with data from 0 to 2000, i only want the text file to show the data from 256 to 2000 and ignore the remaining strings). Is there any function to do this?t i use is shown below
Dim myArray(10000) as string
Dim strArray As New System.IO.StreamWriter("c:List.txt")
strArray.WriteLine("{0,10}{1,30}", "Index", "Symbol")
[code].....
View 8 Replies
Mar 2, 2009
i have a string array that i want to output to a text file. the array size is 10000. i fill the array starting from 0 with some strings. at the end, i only want to show the array from index 256 to the last array that is not empty (for eg. if the array is filled with data from 0 to 2000, i only want the text file to show the data from 256 to 2000 and ignore the remaining strings). Is there any function to do this? i am using visual basic express 2008. The code that i use is shown below
[Code]...
View 2 Replies
Jan 5, 2011
I have a somewhat unique problem that I have looked for an answer to and continually hit brick walls. The problem is this. I'm using vb.net to read a byte array from memory which total 32768 in length, which is converted to a string. The memory is the active console chunk in the game Call of Duty 4.
[Code]...
View 2 Replies
Oct 28, 2009
is instr used in vb.net for this?
View 3 Replies
Mar 30, 2009
My problem seems simple but I can't find an answer for it.I need to be able to pull a phone number (string) from an entire string. example: "My phone number is (xxx) xxx-xxxx, call me as soon as possible."
Its obvious to me that the phone number should be able to change depending on who you are talking too. So the question becomes, how do i search for the phone number's format within the above string?
View 6 Replies
Mar 28, 2011
how I would find certain characters in a string.
View 4 Replies
Dec 9, 2010
I have a window app written in VB 2008. I would like to find the first occurance of CRLF from a string.
I tried the following codes and none of them is working.
str="Things found wrong: Cover on left side of engine leaking.
Starter mounting gasket leaking.
Left hoist cylinder leaking.
[Code]....
View 1 Replies
Oct 12, 2009
I think VB has a way of doing this, but for the life of me I can't find it. I want to search through a string for anything contained between two certain characters, e.g between 2 | characters. I'm not sure if I want to split the string at this point, but I only want anything contained between the two | markers. So for example if the string reads |ABC|DEF I only want to retrieve the ABC, but not the DEF as it's not completed yet.
View 3 Replies
Feb 14, 2009
I want to be able to find both spaces using the indexof method. Here's my code so far. Basically the program will turn the string "Will Smith" to "Smith, Will" But I noticed when I type in a name with a middle initial or middle name "Will J Smith" I would get "J Smith, Will" And I want to be able to find that second space when its there and apply a code that would produce "Smith, Will J" When there is a second space. How would I go about doing so?
[Code]...
View 2 Replies
Nov 17, 2009
Ive got a question about finding the greatest value in a string. I am connected to a database but I am positive that part is right. So i posted here instead of there.
Dim x As Double
Dim ConnStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source=DBASE.MDB"
[Code]...
How do I make my If..Then statement return the highest value of row 0's x? My output (by changing the if then statement) will either return the first or last entry in row 0. I hooked up my code to a list box and got all the data to list perfectly i just don't know how to get the highest number after i use the formula for x (which is {c1-c2}/c2).
View 5 Replies
Apr 26, 2010
I made a Windows service which daily deletes some records from a SQL Server database. But i don't know what my connectionstring should look like ... the service and the database will both be located on the server.I found this example, which parts do i need to change ?
Datasource=.SQLEXPRESS;AttachDbFilename=|DataDirectory|DB_ftp.mdf;Integrated Security=True;User Instance=True;"
View 7 Replies
