Regex: IsMatch Fail On A Particular Word Even If Matches Found In String
Jan 30, 2012
i have to search a string for a few words eg, dog, cat, lion but i want regex to fail if lizard is found in the string even if it contains cat, dog or lion.ismatch(pass) "dog|cat|lion" "This is not your average cat!"ismatch (fail) ??? "This is not your average cat! It's a lizard."??? - here the regex statement is unknown word spaces and boundaries or lower/uppercase is not a concern. I run the string through Replace(" ", "").Trim(" ").ToLower before handover to Regex.
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Jul 21, 2010
I would like to know if the result of RegEx.IsMatch is affected by encoding. I am checking if a string is contained within another one by using a regular expression pattern. I am 99.9 % sure the pattern is correct, so my question is... The matching test with the Regex.IsMatch, is applied on "byte level" or "string level"?
This one is the Output... TEΣT
This one is the Word to match... ΤΕΣΤ
And here is the pattern...
If Regex.IsMatch(Output, "(?<=^||s)" & Regex.Escape(Word) & "(?=s||$)") Then
'dooooo
end if
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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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Jul 24, 2010
I'm trying to integrate a parental controls feature on my webbrowser. Now, the user creates a text file containing a list of the words they don't want their child searching. Here's an example of what would happen. The list looks like this (I wont use vulgar words):
dog
cat
baby
fish
tree
and the kid tries going to "treeandbabynectar.com". I want a messagebox to come up saying "Site blocked". I want it to be able to detect the tree and baby in treeandbabynectar and realize the text file contains the word tree and baby and block the site. Is this possible? How would I do this?
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Jun 24, 2011
I have a string that contains multiple instances of a dollar sign followed by a positive number. I need to grab each instance out using regex. Here's an example of a string:
"This that $1 who $2" Here's what I have so far using vb.net: Dim wordSplitMatches As Match = Regex.Match("This that $1 who $2", "($d+)+")This works great for grabbing the $1 but how do I set it up so that I get multiple groups with all the matches in?
[Code]...
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Jun 28, 2010
[code]I am trying to return all number values that match the regex yet this only returns the first one when there are more after it.
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Jan 7, 2010
Trying to parse this and return the following 3 items: [code] Using this regex expression below I get the matches, but drop the leading "-" at the front of each grouping. I get the "-" in the middle of the group though. [code]
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Mar 12, 2012
I am working on my application to extract the value from my php page using with the regex pattern. I can extract the value using with the mystrings1 tags with no problem, but I can't be able to extract mystrings1 and mystrings2 tags in the same line.
[Code]...
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Feb 17, 2010
I'm searching through an html page and I want to put all of the Regex matches into an array? How would I go about doing this? I see the Regex.Matches but I can't quite understand how to use it an MSDN sucks when it comes to explaining it.
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Feb 6, 2011
I have a string which consists of the raw HTML of a webpage. I would like to search for the first use of /imgres?imgurl= within the string and display the url of an image which follows exactly after it in a text box. Below is an example of part of the string: [URL]..In this case it would find /imgres?imgurl= then it would display [URL]...
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Dec 6, 2010
I've been hammering at this over the weekend with no joy - been through page after page of RegEx Language documentation too.It's very easy to negate a match on characters. For example:
Dim MatchString As System.String = "<test0><test0><test1></test1></test0></test0><test0></test0>"
Dim NegationPattern As System.String = "([^<>])"
Dim RepStr As System.String = ""
[code]....
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May 5, 2009
I have text file with a row like this:
[Code]...
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Aug 21, 2010
I have rather large project and I get an 6 errors during the build process. They are each of this form:
[Code]...
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Feb 1, 2011
I am just can't get my head around this.I've got this Regex:
(?<=Photo:)(.+?)(?=Stock)|(?<=Stock Code:)(.+?)(?=Make:)|(?<=Make:)(.+?)(?=Model:)|(?<=Model:)(.+?)(?=Year:)|(?<=Year:)(.+?)(?=Price:)|(?<=Price:)(.+?)(?=Description:)|(?<=Description:)(.+?)(?=Photo:)|(?<=Description:)(.+?)(?=Page:)
[code]....
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Mar 9, 2011
Dim request As System.Net.HttpWebRequest = System.Net.HttpWebRequest.Create("http://www.web.com")
Dim response As System.Net.HttpWebResponse = request.GetResponse
[code].....
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Aug 19, 2009
I am working on my program as I'm adding the listview subitems string in the label.Do you know how to remove the listview subitem in the label when the matches are found?
Private Sub listView1_MouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs)
Dim item As ListViewItem = listView1.HitTest(e.Location).Item
Dim a() As String = Nothing
[code]....
When I use the code on above, it doesn't remove the listview items in the label when I click on the checkbox on each row. Do you know how to remove the string in the label when I click on the checkboxes in the listview while the strings in the label is matched with the listview subitems?
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Aug 22, 2010
Rename files in a folder who's name matches a regex pattern ?[code]...
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Apr 3, 2012
Question:Given a SQL string like
CREATE VIEW TestView AS
SELECT value1, value2
FROM TABLE_0[code]...........
for each strObjectName in tables, to check whether or not the view depends on this object.But this fails on table_12 (and results in cyclic dependencies) for example, because tables contains "table_1". Aaargh.I need a regex that can check if the view definition contains a function name, table-valued function or another view...
(
For checking with
System.Text.RegularExpressions.Regex.IsMatch([code].....
But it fails, plus it doesn't account for object names embraced in brackets, like
"[TABLE_NAME]"
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Dec 15, 2010
I am trying to split a long string based on an array of words. For Example:Words: trying, long, array Sentence: "I am trying to split a long string based on an array of words."Resulting string array:Multiple instances of the same word is likely, so having two instances of trying cause a split, or of array, will probably happen.
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Jul 23, 2010
I want to search a text file (*.txt extension) for a certain keyword or a part of it. And then let the found item be displayed in a listbox or something else.Now the more difficult part, how can I display the word in front of that found word? [code]How can I then display the IDS_IDS_TXT_008912 on a label ?
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Jun 22, 2010
I got an app, which receives data via a R232 port, convert it to a string and on the other side I got a database, where the strings are saved. How can I find a way to compare the string with all strings in one database column and get back the another stringform the same row in this database. I never programmed a database
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Oct 2, 2009
Trying to parse this and return the following 3 items:
-30.25 31.46 -27.46 31.74
-24.57 32.03 -16.86 32.88
-13.82 33.19 -9.69 33.62
Using this regex expression below I get the matches, but drop the leading "-" at the front of each grouping. I get the "-" in the middle of the group though. Here is the expression I currently use.
Dim regex As New System.Text.RegularExpressions.Regex("{0,1}d{1,2}.{0,1}d{0,2}{1}-{0,1}d{1,2}.{0,1}d{0,2}s{1}-{0,1}d{1,2}.{0,1}d{0,2}s{1}-{0,1}d{1,2}.{0,1}d{0,2}, RegexOptions.Singleline)
[code]......
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Sep 9, 2009
i want to be able to find the text found with the TITLE attribute which looks like this:
[Code]....
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Jun 18, 2010
We have an in home application that does sales order, and displays them on a webpage, in bulks of 50. Currently Right now, I can get the webpage HTML code, however I am not sure how i loop through that, and get the data I need.The HTML that i want to get looks like this
sales_page.php?&id=97979234234somethingelse
sales_page.php?&id=979723434;somethingelse
sales_page.php?&id=979722234234&po=999222
[code].....
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Dec 16, 2009
Basically I want to retrieve all possible substring matches with n characters from a string, Here's my initial code but it only returns 2 matches.[code]...
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Feb 23, 2012
I'm trying to read a file with my following sub:
Public Declare Function GetPrivateProfileString& Lib "kernel32" Alias "GetPrivateProfileStringA" (ByVal AppName$, ByVal KeyName$, ByVal keydefault$, ByVal ReturnedString$, ByVal RSSize&, ByVal FileName$)
[Code].....
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May 5, 2011
I need to insert a word after every X (i.e. 4,5,6 etc) sentences in given text. I feel regex would be compact and good solution. To be specific, I need to do this in .net. regex can't identify some sentences ending with not so common punctuation, I am fine with it. I don't need 100% accuracy)
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Apr 17, 2011
The quick brown fox jumps over the lazy dog" is an English-language pangram, alphabet! that is, a phrase that contains all of the letters of the alphabet. It has been used to test typewriters alphabet. and computer keyboards, and in other applications involving all of the letters in the English alphabet.I need to get the "alphabet." word in regex. In the above text there are 3 instances. It should not include "alphabet!". I just tried regex with
MatchCollection match = Regex.Matches(entireText, "alphabet.");
but this returns 4 instances including "alphabet!". How to omit this and get only "alphabet."
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Mar 6, 2009
I'm trying to write a function to find a word in a string in the this format : "ThisissometextthatIneedtofindandthisisthetext. This is another text."It's read as " This is some text that I need to find and this is the text. This is another text." but there is no space between each word. I want to get the word "text" or any word in that string. Can you help me with this function with a code sample ?
And I think that this method can be implemented with a string of Unicode also because in a sentence of Unicode it contains one or few, sometimes zero spaces between each word.
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Apr 17, 2010
How to check if string entered in a text box matches a field in a data table
I have a form with two text boxes for users to enter their Username and Password. When they enter their details and click the 'Login' button I want their details to be
checked against data in a data table to see if they match or not. I am using an 'if...else' statement but can't work out the syntax to use. My code is as follows[code]...Check when string entered in a text box matches field in data table?
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