Search and replace elements in a 2D Array

Hello,
i have a programming problem in Labview 7.1 under Win XP. I want replace elements in a 2D Array. The code works fine but I want replace elements in the 2D Array (for example all elements between 2 and 5 should replace to zero).
Thank you in advance
Rene
Attachments:
Search_and_replace 2D Array.vi ‏42 KB

Sometimes, you don't need any loops
Note to Devchander:
You can configure the "In Range and Coerce" finction to either exclude or include the limits. This is done by right-clicking on their respecive terminal. Try it! The terminal will be either a solid or open diamond, depending on configuration.
Message Edited by altenbach on 01-11-2006 07:59 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
Search_and_replace_2D_ArrayMOD.vi ‏24 KB
SearchReplace2D.png ‏3 KB

Similar Messages

Search and replace string function

Hello, I am using the "search and replace string" function and it does nt seem to work consistently for me. I am using it in a situation where I am taking an array of strings, converting this into a spreadsheet string then deleting all of the commas. Has anyone experienced the same behavior? I have searched through other posts and found other simular faults but none of the fixes worked for this. I can post the code it needed.
Thanks,
Andrew

I agree that commas are often not desirable, especially if your software should also work in countries where comma is used as a decimal seperator.
Where are the commas coming from? Does (1) each element of the original array have one (or more), do you (2) use comma as seperator if you convert it to a spreadhseet string?
For (1), you might just strip out the comma for each element right in the loop. For case (2) you would simply use a different separator to begin with, of course.
Btw: you are abusing a WHILE loop as a FOR loop, because you have a fixed number of iterations. Please replace it with a FOR loop. If you use a FOR loop, LabVIEW can manage memory much more efficiently, because it can allocate the entire output array before the loop starts. For While loops, the total number of iterations is not known to the compiler. (Of course a real program would also stop the loop if an error occurs. In this case you would need to stay woth the WHILE loop. )
Do you have a simple example how the raw array elements look like. How many commas are there?
LabVIEW Champion . Do more with less code and in less time .

Search and Replace String throwing the wrong error message with regexp?

This came up in a LAVA thread, and I'm not sure if there's a bug here or not. When using Search and Replace string, and using a regular expression of [(G[b|i])], LabVIEW throws error -4622, "There is an unmatched parenthesis in a regular expression." There are obviously no unmatched parenthesis in that expression, so it seems to me that the wrong error is being thrown. I'm just not sure if that's a syntactically valid regexp. The problem seems to be with nesting [ ]'s inside ( )'s inside [ ]'s. I've tried a couple of regexp resources on the Web, and one suggests it's valid, while the other seems to think it isn't.
Message Edited by eaolson on 03-13-2007 10:33 AM
Attachments:
ATML_StandardUnit2.vi ‏10 KB
regexp.png ‏5 KB

adambrewster wrote:
I think your regexp is invalid.
In regexps, brackets are not the same as parentheses. Parens are for grouping, while brackets are for matching one of a class of characters. Brackets can not be nested.
If the regexp is replaced with [G[bi]], there is no error, so it's not a matter of nested brackets. I couldn't find anything on the PCRE man page that forbids nested brackets specifically, but it makes sense.
Your expression "[(G[bi])]", therefore parses as a character class which matches '(', 'G', '[', 'b', or 'i' followed by an unmatched paren, and an unmatched bracket.
I don't believe that's the case. Replace the regexp with [(Gbi)], and the error goes away. So it's not a matter of the '(' being literal, and then encountering a ')' without a matching '('.
daveTW wrote:
what string exactly you want to replace? I think the round braces are not right in this case, since they mark partial matches which are given back by "match regular expression". But you don't want to extract parts of the string, you want to replace them (or delete, with empty <replace string>). So if you leave the outer [( ... )] then your RegEx means all strings with either "Gb" or "Gi".
It's not my regular expression. A poster at LAVA was having problems with one of his (a truly frightening one), and this seemed to be the element that was causing the problem. I'm pretty sure that the originator of the regexp meant to use G(b|i), which seems like a complicated way of matching "Gb" or "Gi", if you ask me.

How to search and replace in an xml file using java

Hi all,
I am new to java and Xml Programming.
I have to search and replace a value Suresh with some other name in the below xml file.
Any help of code in java it is of great help,and its very urgent.
I am using java swings for generating two text boxes and a button but i am not able to search in the xml file thru the values that are entered into these text boxes.
Thanks in advance.
**XML File*
<?xml version="1.0" encoding="ISO-8859-1"?>
<student>
<stud_name>Suresh</stud_name>
<stud_age>40</stud_age>
</student>Also i am using SAX Parser in the java program
any help of code or any tutorials for sax parisng is very urgent please help me to resolve this problem
Edited by: Karthik84 on Aug 19, 2008 1:45 AM
Edited by: Karthik84 on Aug 19, 2008 3:15 AM

Using XPath to locate the elements you are after is very easy.
Try something like this:
import java.io.File;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
public class BasicXMLReplaceWithDOM4J {
     static String inputFile = "C:/student.xml";
     static String outputFile = "C:/studentRenamed.xml";
     public static void main(String[] args) throws Exception {
          // Read xml and build a DOM document
          Document doc = DocumentBuilderFactory.newInstance()
                    .newDocumentBuilder().parse(new InputSource(inputFile));
          // Use XPath to find all nodes where student is named 'Suresh'
          XPath xpath = XPathFactory.newInstance().newXPath();
          NodeList nodes = (NodeList)xpath
               .evaluate("//stud_name[text()='Suresh']", doc, XPathConstants.NODESET);
          // Rename these nodes
          for (int idx = 0; idx < nodes.getLength(); idx++) {
               nodes.item(idx).setTextContent("Suresh-Renamed");
          // Write the DOM document to the file
          Transformer xformer = TransformerFactory.newInstance().newTransformer();
          xformer.transform(new DOMSource(doc), new StreamResult(new File(outputFile)));
}- Roy

Search and replace with comma

Hello All,
I want some help. Please help me.
I have comma delimited Data. When I’m converting Sting to Array, If two commas exists in between then its displaying “Zero” (because its array propriety ). Instead of that I want to display “NaN” .
Please give me any idea to replace comma to NaN. I tried with Search and Replace but it’s not giving as I expected.
Munna
Solved!
Go to Solution.

Hello GerdW,
Thanks you so much for your reply.
I thought, instead of replacing trailing comma by NaN adding comma before string is more better (because to many string manipulations) But, it’s taking more execution time.
Munna
Attachments:
Search and Replace.vi ‏415 KB

Search and Replace using wild characters

I have a bit of a problem on my hands while dealing jdom and xml. I am parseing an xml response from a service. The issue is that it contains an element with a colon. Nothing I can do about the service so I have to deal with it. I know I could use DOM and s on but I have chose to use jdom for a couple of reasons. What I am planning on doing is removing the colon in the element names with some sort of search and replace. The problem is that the there could be up to 500 element names with a numeric value. The element name looks like the following ns1:Point, ns2:Point, ns3:Point, and so on. JDom will not handle this so I would like it the element name to look ns1Point, ns2Point, etc. I have the xml returned from the service in a string. Is there any way I can do a search and replace given the above information. Thanks in advance

Silverfoot wrote:
I realize that it seperates the name space. The namespace for the element is different than ns1. Maybe I am missing something though
Using JDOM, I navigate my way through the xml using getChild(elementname, namespace). When i get to ns1:Point, i use the same namespace as previous elements. Are you suggesting that ns1 is another namespace. In that case I would use a second name space to the Point element.I think you're missing a whole lot, actually. You don't seem to know much about namespaces. For a start you're apparently making the beginner error of assuming that the namespace prefix declares the namespace. And this idea:
What I am planning on doing is removing the colon in the element names with some sort of search and replace.is just wrong. I would suggest you go off and find a tutorial (or a chapter in your XML book) about namespaces.

Using a variable in a Powershell search and replace string

Hi
a couple of days ago I posted a question about doing a search and replace with wildcards
Search and repalce with Widcards
I got a swift and very helpful answer but now I need to build on it.
In a text file I wanted to replace all the text between two defined words. the script I got was this
$text = 'Some Server this bit of text varies Language stuff'
$text -replace '(.*Server) .+? (Language.*)','$1 it will always say this $2'
It works great but now I want to replace "it will always say this" with a variable and I can't figure out the correct grammar to make this happen.
Can anyone help??
Thanks
Alex

Here's one way:
$replace = 'it will aways say this'if ( $text -match '(.*Server) .+? (Language.*)' )
{ "{0} $Replace {1}" -f $matches[1,2] }
else { $text }
[string](0..33|%{[char][int](46+("686552495351636652556262185355647068516270555358646562655775 0645570").substring(($_*2),2))})-replace " "

HTML character entities problem in saved regex search and replace query

I have a many search and replace regular expression queries (.dwr files) that I have saved. I have a problem specifically with saved queries that contain HTML entities such as "& nbsp ; " or "& shy ;" (spaces added otherwise code doesn't render in browser). For example if I use the following search:
([\d]{3}& shy ;[\d]{3}& shy ;[\d]{4}|[\d]{3}& nbsp ;[\d]{3}& nbsp ;[\d]{4})
(which searches for numbers in the 888-555-1234 or 888 555 1234 formats)
This will work fine if I manually enter it into the search text area. However if I save it to file and reload it, it will no longer work because the  and characters are now displayed as " " (space) and "-"(shy) rendering the saved query useless as it's no longer searching for the code. I have some fairly long and complex queries and this is becoming a problem.
Thanks for any help.
I'm currently using Dreaweaver CS4 at home and CS5.5 at work.

Thanks for your reply Kenneth, but that is not what I'm trying to accomplish. I'm looking for the HTML entities that exist in the source code which are & shy ; and & nbsp ; (without the spaces). As I mentioned above, if I enter them manually in the search box, I will get the corrrect results. If I save the search and then reload it, the special characters are no longer in HTML and the search is now useless.
Just for example again
In an open document in code view insert a number in the format (without the spaces): 888& nbsp;888& nbsp ;8888
Open a search dialog box and enter (without the spaces): [\d]{3}& nbsp ;[\d]{3}& nbsp ;[\d]{4}
The search will find that entry.
Save search as phone.dwr for example. Then load it and try the search again. It won't work because upon loading the search Dreamweaver replaces the HTML code which was saved with the rendered HTML. So now the search shows up as: [\d]{3} [\d]{3} [\d]{4} which will not find the string with hard coded non-breaking spaces that I'm looking for.
Basically I want to be able to save a search query for reuse. When I load a search query, I want it to be exactly what I saved, not something that DW has rendered (that doesn't work).

Does the labview 8.5 project have a search and replace option that appies to all vi's in the project?

In 8.2, the only thing the project has to let you search for a vi is "Find vi's on disk", which is redundant since I can do that in windows explorer. What I want is a way to search for vi's in my application the way the search and replace function works, except I want it to apply to all vi's in a project instead of just the vi's currently loaded in memory. Do we have this in 8.5?
-Devin
I got 99 problems but 8.6 ain't one.

I'll give an example of what I was trying to do yesterday in 8.2. I tried to build a source distribution of a large instrument driver. Since its an instrument driver there is no single top-level vi that contains all vi's - there are different categories of vi's to do different functions on my instrument. When I'm doing the source distribution I have to do it in several stages since 8.2 doesn't do source distributions right - but thats not really what this post is about. Anyway, every time I do the distribution I get an error saying CnvrtArrayIntoBitPattern.vi is password protected (and another engineer wrote it and I don't have the password). So the build fails. Now I don't know the password, I'll find it out later, but I at least want to know where in the hierarchy this vi is even being called. I don't know where it is on disk, I don't know what is calling it, it isn't in the project explicitly, it's a dependency.
If I had a top-level vi that loaded everything, I could just do a search and replace on that vi and find exactly where it is being called in seconds. But since I am in a project and have no idea where to start looking, there is no way I can find this vi. Ideally, in 8.5 there would be a search and replace menu option that searches all vi's in a project to find any calls to this vi. I want to look for all instances of a vi in my project. It sounds like you still can't really do that in 8.5.
What I ended up doing is writing a vi that opens all vi's in a folder hierarchy on disk. I don't know where this vi is, but all vi's in my project are in the same root folder. So I run my program to open every single project vi. Then since I know every single vi is open and loaded simultaneously I used the search and replace function on one of them to find all instances of CnvrtArrayIntoBitPattern.vi. But that is a painstaking process to create a simple search function.
I think NI is maybe misunderstanding how people are actually using a project. Not every vi that is being called is going to be explicitly listed in the project. (Its this same issue that makes source distributions impossible in 8.2 - you can't target dependencies to a support library so every dependency has to be explicitly listed in the project - which is virtually impossible because they are all in different locations and there are hundreds.) Most people have lots of general purpose vi's they use in many different projects, and they are buried down in code so we aren't even sure where they are all being used. The new searches you mention assume you already know where the low-level function is and you are looking for their callers. But sometimes you don't even know where the low level function is. What if its an NI directory function? For example, "resample waveform.vi" is an NI function that changed its defaults in 8.2 which meant we had to find every single place we used it and wire "open-interval?" to a constant instead of depending on the default value. Its in an NI library somewhere and is never listed as a project vi. So when I needed to find every place through every project that I used this vi, I couldn't do it through the project manager because there is no search function. To be practical I add the project-specific vi's to the project, and maybe a couple support directories, but there will always be lots of vi's as dependencies. But every now and then I'm still going to want to search for one of these vi's. So in 8.5 there is there still no way to search for vi's that aren't explicitly listed in the project?
-Devin
I got 99 problems but 8.6 ain't one.

How do I search and replace for invisibles in Pages 5.5.2?

Three related problems all involving search and replace for invisibles.
1. A block of text where all double returns need to become single returns.
2. A block of text where all returns need to be replaced with a single word space.
3. A block of text where all double word spaces to be replaced with a single word space.
Pages 09 could do all three this handily. How can these be done in Pages 5.5.2?
Appreciated.

Here are screenshot of my attempts to make reducing double returns to one. First up selection of a double return:
Copy to the clipboard. Do a Command-F. Here's the resulting dialogue:
I paste in the contents of the clipboard:
Note the Search field no longer has an empty slot selected. Something is clearly in there, but no instance of whatever is has been found. Nevertheless, I proceed to set up the Replace field by selecting a single return:
Copy that to the clipboard and paste into the Replace field:
Nothing to search for and therefore nothing to replace. Am now wondering what that little scoop to the right of the eyeglass icon might indicate. Clicking on it reveals this:
Definitely not "a solution that just works."

How do I search and replace in comments in Acrobat XI?

I use a Mac and just downloaded Acrobat Pro XI specifically to search and replace phrases in comments in a large PDF. According to this Adobe Help page, I should be able to do this: https://helpx.adobe.com/acrobat/using/searching-pdfs.html I copied the relevant section below and marked with ***. However, I don't see I don't see an arrow for the options that would allow me to include comments. I understand how to include the comments with advanced search, but I want to also replace text. I also checked in preferences and searched the forums. Could someone please advise and maybe include a screenshot, if possible. Thanks!
Choose Edit > Find (Ctrl/Command+F).
Type the text you want to search for in the text box on the Find toolbar.
To replace text, click Replace With to expand the toolbar, then type the replacement text in theReplace With text box.
(Optional) Click ***the arrow ***next to the text box and choose one or more of the following:
Whole Words Only
Finds only occurrences of the complete word you type in the text box. For example, if you search for the word stick, the words tick and sticky aren’t found.
Case-Sensitive
Finds only occurrences of the words that match the capitalization you type. For example, if you search for the word Web, the words web and WEB aren’t found.
Include Bookmarks
Also searches the text in the Bookmarks panel.
***Include Comments***
Also searches the text of any comments.

Here are screenshot of my attempts to make reducing double returns to one. First up selection of a double return:
Copy to the clipboard. Do a Command-F. Here's the resulting dialogue:
I paste in the contents of the clipboard:
Note the Search field no longer has an empty slot selected. Something is clearly in there, but no instance of whatever is has been found. Nevertheless, I proceed to set up the Replace field by selecting a single return:
Copy that to the clipboard and paste into the Replace field:
Nothing to search for and therefore nothing to replace. Am now wondering what that little scoop to the right of the eyeglass icon might indicate. Clicking on it reveals this:
Definitely not "a solution that just works."

Search and Replace in Pages 5

Search and Replace in Pages is now seriously regressive. Previously I could search for "invisibles" in a document and globally replace the search "invisible" by a replace one. Now I can't find a way of doing that. Any suggestions?

Try this:
Turn on Show Invisibles in the View menu.
Select (highlight) the double para breaks.
Use Command-E (Find using selected text).
Open the Find dialogue box (Command-F) and select Find & Replace.The selected para breaks will be in the Find text entry box, but will not be visible!
Click in the Replace text entry box.
Select (highlight) a single para break.
Go to the Edit menu / Find and select 'Use selection for replace' (it will not show in the Replace entry box).
In the Find & Replace dialogue box, click on the Forward or Back arrows to highlight the selected items (e.g. double para break) where you wish to start replacing in the document.
Use the Replace All / Replace & Find / Replace buttons as per usual.
Not a nice solution, but I hope it gets you going until Apple restores the previous functionality!

Search and Replace in Dreamweaver

Dreamweaver CS3has a nice search and replace tool allowing for search and replacement of very large text strings.
Does anyone know of a good notepad editor that can handle that large of replace text strings.
Seems like most cant handle that much code in terms of search and replace.
thanks

If you're looking for something free/cheap that handles multi-line search and replace in source code, then there's always TextWranger if you're on a Mac:
http://www.barebones.com/products/TextWrangler/
There are plenty of Windows equivalents, but none I've used extensively and could recommend. This one is free:
http://www.htmlkit.com/
...and has a button to expand the find/replace fields for multi-line content.
That being said, they're not really going to do anything DW can't if you're already using DW.

Search and replace strings in a file while ignoring substrings

Hi:
I have a java program that searches and replaces strings in a file. It makes a new copy of the file, searches for a string in the copy, replaces the string and renames the new copy to the original file, thereafter deleting the copy.
Now searching for "abcd", for eg works fine, but searching for "Topabcd" and replacing it doesnot work because there is a match for "abcd" in a different search scenario. How can I modify the code such that if "abcd" is already searched and replaced then it should not be searched for again or rather search for "abcd" as entire string and not if its a substring of another string.
In the below code output, all instances of "abcd" and the ones of "Topabcd" are replaced by ABCDEFG and TopABCDEF respectively, whereas according to the desired output, "abcd" should be replaced by ABCDEFG and "Topabcd" should be replaced by REPLACEMEFIRST.
try
          String find_productstring = "abcd";
          String replacement_productstring = "ABCDEFG";
          compsXml = new FileReader(compsLoc);
          compsConfigFile = new BufferedReader(compsXml);
          File compsFile =new File("file.xml");
          File compsNewFile =new File("file1.xml");
          BufferedWriter out =new BufferedWriter(new FileWriter("file1.xml"));
          while ((compsLine = compsConfigFile.readLine()) != null)
                new_compsLine =compsLine.replaceFirst(find_productstring, replacement_productstring);
                out.write(new_compsLine);
                out.write("\n");
            out.close();
            compsConfigFile.close();
            compsFile.delete();
            compsNewFile.renameTo(compsFile);
        catch (IOException e)
        //since "Topabcd" contains "abcd", which is the search above and hence the string "Topabcd" is not replaced correctly
         try
               String find_producttopstring = "Topabcd";
               String replacement_producttopstring = "REPLACEMEFIRST";
               compsXml = new FileReader(compsLoc);
               compsConfigFile = new BufferedReader(compsXml);
               File compsFile =new File("file.xml");
               File compsNewFile =new File("file1.xml");
               BufferedWriter out =new BufferedWriter(new FileWriter("file1.xml"));
               while ((compsLine = compsConfigFile.readLine()) != null)
                     new_compsLine =compsLine.replaceFirst(find_producttopstring, replacement_producttopstring);
                     out.write(new_compsLine);
                     out.write("\n");
                 out.close();
                 compsConfigFile.close();
                 compsFile.delete();
                 compsNewFile.renameTo(compsFile);
             catch (IOException e)
        }Thanks a lot!

Hi:
I have a java program that searches and replaces
strings in a file. It makes a new copy of the file,
searches for a string in the copy, replaces the
string and renames the new copy to the original file,
thereafter deleting the copy.
Now searching for "abcd", for eg works fine, but
searching for "Topabcd" and replacing it doesnot work
because there is a match for "abcd" in a different
search scenario. How can I modify the code such that
if "abcd" is already searched and replaced then it
should not be searched for again or rather search for
"abcd" as entire string and not if its a substring of
another string.
In the below code output, all instances of "abcd" and
the ones of "Topabcd" are replaced by ABCDEFG and
TopABCDEF respectively, whereas according to the
desired output, "abcd" should be replaced by ABCDEFG
and "Topabcd" should be replaced by REPLACEMEFIRST.
try
String find_productstring = "abcd";
String replacement_productstring = "ABCDEFG";
compsXml = new FileReader(compsLoc);
compsConfigFile = new
BufferedReader(compsXml);
File compsFile =new File("file.xml");
File compsNewFile =new File("file1.xml");
BufferedWriter out =new BufferedWriter(new
FileWriter("file1.xml"));
while ((compsLine =
compsConfigFile.readLine()) != null)
new_compsLine
=compsLine.replaceFirst(find_productstring,
replacement_productstring);
out.write(new_compsLine);
out.write("\n");
out.close();
compsConfigFile.close();
compsFile.delete();
compsNewFile.renameTo(compsFile);
catch (IOException e)
//since "Topabcd" contains "abcd", which is
the search above and hence the string "Topabcd" is
not replaced correctly
try
               String find_producttopstring = "Topabcd";
String replacement_producttopstring =
topstring = "REPLACEMEFIRST";
               compsXml = new FileReader(compsLoc);
compsConfigFile = new
gFile = new BufferedReader(compsXml);
               File compsFile =new File("file.xml");
               File compsNewFile =new File("file1.xml");
BufferedWriter out =new BufferedWriter(new
dWriter(new FileWriter("file1.xml"));
while ((compsLine =
compsLine = compsConfigFile.readLine()) != null)
new_compsLine
new_compsLine
=compsLine.replaceFirst(find_producttopstring,
replacement_producttopstring);
out.write(new_compsLine);
out.write("\n");
out.close();
compsConfigFile.close();
compsFile.delete();
compsNewFile.renameTo(compsFile);
             catch (IOException e)
Thanks a lot!I tried the matches(...) method but it doesnt seem to work.
while ((compsLine = compsConfigFile.readLine()) != null)
if(compsLine.matches(find_productstring))
     System.out.println("Exact match is found for abcd");
     new_compsLine =compsLine.replaceFirst(find_productstring, replacement_productstring);
out.write(new_compsLine);
out.write("\n");
     else
     System.out.println("Exact match is not found for abcd");
     out.write(compsLine);
     out.write("\n");

Search and replace in a applet

Hello,
I have a string "jds" that looks like this
http://ns2.taproot.bz/thumbs2/1.jpg
I have been using this to replace "thumbs2" with "big" and create a url
URL my_thumb = new URL(jds.replaceAll("thumbs2", "big"));however now that im making this code into a applet, this no longer
works. Could some one please suggest a way around this.
Thanks,
jd

replaceAll method in String is available only from 1.4 onwards.
http://java.sun.com/j2se/1.4.1/docs/api/java/lang/String.html#replaceAll(java.lang.String, java.lang.String).
You could use a method to search and replace a String with another...
public String replace (String source, String search, String replace) {
    StringBuffer result = new StringBuffer();
    int start = 0;
    int index = 0;
    while ((index = source.indexOf(search, start)) >= 0) {
      result.append(source.substring(start, index));
      result.append(replace);
      start = index + search.length();
    result.append(source.substring(start));
    return result.toString();
}

Search and replace elements in a 2D Array

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