i have a VB.NET program that handles the content of documents. The programm handles high volumes of documents as "batch"(>2Million documents;total 1TB volume) Some of this documents may contain control chars or chars like f0e8 [URL]). Is there a easy and especially fast way to remove that chars?(except space,newline,tab,...) If the answer is regex: Has anyone a complete regex for me?
View 2 RepliesI'm data binding to a label in a grid and need to knock off the last two chars, not so easy as I thought.I know this is wrong it just shows how I'm coding:
Code:Private Sub TemplateControl_DataBinding_Label(ByVal sender As Object, ByVal e As System.EventArgs)
[code].....
I am using TrimEnd to remove certain chars from the end of a string. Initially I thought this would work:
[Code]...
I need to convert UTF8 string to ISO-8859-1 string using VB.NET.
View 6 RepliesHow could i read a string into a binary file Encoding.UTF8.(the string has a length of 25 bytes)
Using fs As New FileStream (OpenFileDialog1.FileName, FileMode.Open)
fs.Position = 2096
Using br As New BinaryReader (fs)
For x As Int16 = 2 To 25
[code]....
In VB.net I've got the following line that removes all non-alphanumeric chars from a string:
return Regex.Replace(build, "[W]", "")
I now need to extend this to remove non-alphanumeric chars that aren't [] or _. I've changed the line to:
return Regex.Replace(build, "[W[]_]", "")
However I'm pretty sure that this says
replace non-word or [ or ] or _
how do I negate the tests for the [] and _ chars so that it says
replace non-word and not [ and not ] and not _
Some examples:
"[Foo Bar_123456]" => "[FooBar_123456]"
"[Foo Bar_123-456*]" => "[FooBar_123456]"
How to convert or make a cast of a List object typized as a container of chars like
Dim mylist As List(Of Char) = New List(Of Char)(New Char() {"1"c, "2"c})
in a simple array of chars as
Dim mychars() As Char
without make a loop for...
I am making an antivirus program and i am having a problem with my database. how can i only get the hash in this string:
693248:ff807bd383d377f7f8f91ed4aa7677ae:Trojan.Agent-178374
i only want between the two ":"s in this string. how is this possible? and also how do i get the last part on the right of the last ":"?
if the last 4 chars in my string(result) are " AND" or the last three chars are " OR" I would like to remove these from the string. So far I have am trying result.trimend and a few other methods but am unsure how to get it working.
View 3 Repliesthis is driving me crazy , I have a string like this dim s as string = "<a href="url.aspx? target=_BLANK>mik, H</a>" I want to remove "mik, h" from the string, how can i do that?
View 4 Repliesstill pretty new to programming in general, but I have most of the basics figured out.I stumbled across this problem today, though. I wanted to try making a simple encoder/decoder. However, I am having trouble getting characters from a string.
I have a list(of char) to separate the individual letters in the message (letterList), and textToConvert is the text that the user types in to be encoded. Here's the section of code my problem exists in:
For i = 0 To textToConvert.Length - 1
letterList(i) = textToConvert.Chars(i)
Next i
Upon running my program, I get an out of range exception for the middle line above. Am I doing something wrong?
trying to find a decent answer for my question; I do have a utf8 file which I (down)load, manipulate and wanting to save back again.The result always is that the file I produce is not in utf8 format;
Dim fs2 As New FileStream("c: est.dat", FileMode.Create, FileAccess.Write, FileShare.None)
Dim w As New BinaryWriter(fs2, Encoding.UTF8)
[code].....
tell me how to Count Special Characters from input STRING.
View 2 RepliesUsing VB.NET 2003 Asp.Net 1.1. I'm data binding to a label in a grid and need to knock off the last two chars, not so easy as I thought.
I know this is wrong it just shows how I'm coding:
Code:
<div id=CODE>Private Sub TemplateControl_DataBinding_Label(ByVal sender
As Object, ByVal e
As System.EventArgs)
Dim lc As Label
Dim sColumnName As
String = ""
[Code] .....
One problem is what I want to achieve:
I want to have:
$123.00
$15.00
$1,000.00
$123.50
$45.78
My data comes back with 4 places on the end
123.0000
15.0000
45.7800
35.9000
The $ sign I have in my code does work
so I have"
$123.0000
$15.5000
and so on.
I don't believe there will ever be a point where the last two are anything other than zeros.
I'm trying to make a hash calculator (For testing now)
I know that MD5 is a 1 way(Meaning that there is no decryption for it, yet)
now I was wondering if SHA-1 is a two way. Also, is there any other hashing method that are 2way?
reason is that I want to convert a long string (Lets say 550 chars) into something lower (From 550chars to something lower then 550chars)
I can use a Key, but every possibility will give me bigger length then the actual string.
I am testing for a string if it contains at least n chars in consecutive order: I have this regex but it doesn't seems to work (w1){3,}
View 2 RepliesI'm using the following to strip special characters out of a URL:
Dim urlReg As New Regex("[^dw ]")
inurl = urlReg.Replace(inurl, "")
[code]......
I have text file with a row like this:
[Code]...
I wanted to load some utf8 content in browser control but doesnt seem to work!
View 2 RepliesI want to convert an ebcdic string to a utf8 string. I use the below online tool to test this, which is very good, for conversion related stuffs.
[URL]
I want to convert £Ë†â€°¢â€°¢¤£â€ ø which is in EBCDIC to UTF8 string, which is thisisutf8 You can use the above link to test.
I refered the below article on how to read EBCDIC data in .net
[URL]
Then I used the same method to read the ebcdic data
Dim encoding As System.Text.Encoding = _
System.Text.Encoding.GetEncoding(37)
However I am not getting the expected data
Here is my code, to get the result into a atring, a.
Dim a As String = System.Text.Encoding.UTF8.GetString(System.Text.Encoding.GetEncoding(37).GetBytes("£Ë†â€°¢â€°¢¤£â€ ø"))
how can i convert Unicode to UTF8
how can i conevrt Unicode to ANSI
(VS 2010)
This is for a forum login.
i'm trying to make a login for a forum but if a user contains special char in his name it won't work..
so i thought of converting them to Unicode and convert them to ansi and try loging...
I'm trying to get a ComboBox to remove the 6th string in the ComboBox or an index of (5) but it doesn't remove it here is the function I am using:
if ComboBox1.items.count = 6 then
ComboBox1.Items.RemoveAt(5)
End If
I've encountered an incredibly frustrating problem during my work with a function to extract META-data from images.
When reading data from a file created under Windows in any kind och charset there is no problem at all, but when reading from files created under OS X i can't convert it to utf8.
The problem only occurs on chars like 'å','ä', 'ö' and some other chars that i rarely use.
Is there any way of converting chars on-the-fly serverside?
I guess i need a function to determine the actual charset as well.
I've tried numerous ways of converting with HTMLEncode/Decode and URLEncode/Decode without ANY result at all.
i am using MySql with vb.net to insert some data in a MySql table and i am facing a problem with encoding.When i try to insert Greek characters the characters in the database are saved as. I made a research in net and found that a mysql query SET NAMES 'utf8'. Solves the problem. I made an execute command but doesnt work.
[Code]...
I have been working on a project that opens, modifies, then saves an xml file. The problem is that one of the attribute values contains a dash, causing the parser to throw an error when my xml editor application attempts to open the file. I have yet to find a working solution after weeks of searching the web, I tried the the following method for saving the xml file[code]...
View 2 RepliesI've been trying to trace down a bug for hours now and it has come down to this:
Dim length as Integer = 300
Dim buffer() As Byte = binaryReader.ReadBytes(length)
Dim text As String = System.Text.Encoding.UTF8.GetString(buffer, 0, buffer.Length)
The problem is the buffer contains 300 bytes but the length of the string 'text' is now 285. When I convert it back to bytes, the length is 521 bytes...The same code is a normal WinForms app works perfectly. The data being read by the binary reader is a UTF8 encoded string. Any ideas why Silverlight is playing funny buggers?
I had an interesting bug today when sending plain text emails from our system. We format messages like this: -1st something happened blab bla. -2nd something else happened blab blab blaa bla. Today we had an email that looked like this: -1st something happened blab bla. -2nd something else happened blab blab blaa bla $1000.00 -3rd Something happened. So above, we see that we lost the CrLf but only on the message that didn't have a period and ended in 0. I went through the code and found the CrLf is intack up until we send the email. I tracked the code down below, I am guessing it applies to C# as well:
[Code]...
I have thing problem here is the debugging outputs
"?uÆ’n74tn5187r&key=6e6e0936c4e6c48be56a72eba8964df0"
should be
"?u=83n74tn5187r&key=6e6e0936c4e6c48be56a72eba8964df0"
[code]....
This question is similar to How to emulate MySQLs utf8_general_ci collation in PHP string comparisons but I want the function for vb.net rather than PhP.Recently I make a lot of supposedly unique key.Some of the keys are equivalent under UTF8 unicode collation.For example, look at these 2 key:
byers-street-bistro_38.15-79.07
byers-street-bistro‎_38.15-79.07
If I paste that into front page, and look at the source code you'll see
byers-street-bistro__38.15_-79.07
byers-street-bistro‎__38.15_-79.07
Note: In stack overflow they still look different.I know it's not the same. I guess even in stack exchange it doesn't show. Say I have 1 million such records and I want to test whether 2 string WILL be declared the same by MySQL UTF8 collation. I want to know that before uploading. How do I do that.So vb.net think that those are different keys. When we created mysql query and upload that to database, the database complain it's the same key. Just one complain and the upload of 1 million databases will be stuck.We don't even know what the hell is ‎? Where can we look that up anyway?Anyway, I want a function that when given 2 strings will tell me whether they will count as the same or not.If possible we want a function that convert strings into their most "standard" form.For example, ‎ seems to encode nothing and the function would recoqnize all those nothing character and eliminate that.Is there such thing?So far this is what I do. I need something more comprehensive.
[code]...
I'm overriding the CreateParams property in my form to draw a custom oversized titlebar:
[Code]...
But the control box (close and minimize) disappears. Is there any way to keep the control box and the text in the taskbar, but remove the usual title?