Regex :: Use The String.match Method To Find Multiple Occurrences Of The Same Word In A String?
May 25, 2010
In Actionscript and Adobe Flex, I'm using a pattern and regexp (with the global flag) with the string.match method and it works how I'd like except when the match returns multiple occurrences of the same word in the text. In that case, all the matches for that word point only to the index for the first occurrence of that word. For example, if the text is "cat dog cat cat cow" and the pattern is a search for cat*, the match method returns an array of three occurrences of "cat", however, they all point to only the index of the first occurrence of cat when i use indexOf on a loop through the array. I'm assuming this is just how the string.match method is. I want to find the specific indices of every occurrence of a match, even if it is of a word that was already previously matched.
how the string.match method is and if so
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May 25, 2010
I'm using a pattern and regexp (with the global flag) with the string.match method and it works how I'd like except when the match returns multiple occurrences of the same word in the text. In that case, all the matches for that word point only to the index for the first occurrence of that word. For example, if the text is "cat dog cat cat cow" and the pattern is a search for cat*, the match method returns an array of three occurrences of "cat", however, they all point to only the index of the first occurrence of cat when i use indexOf on a loop through the array. I'm assuming this is just how the string.match method is (although please let me know if i'm doing something wrong or missing something!). I want to find the specific indices of every occurrence of a match, even if it is of a word that was already previously matched.
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May 25, 2010
I'm using a pattern and regexp (with the global flag) with the string.match method and it works how I'd like except when the match returns multiple occurrences of the same word in the text. In that case, all the matches for that word point only to the index for the first occurrence of that word. For example, if the text is "cat dog cat cat cow" and the pattern is a search for cat*, the match method returns an array of three occurrences of "cat", however, they all point to only the index of the first occurrence of cat when i use indexOf on a loop through the array. I'm assuming this is just how the string.match method is. I want to find the specific indices of every occurrence of a match, even if it is of a word that was already previously matched.
how the string.match method works and if so
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Aug 24, 2010
I have the following as3 function below which converts normal html with links so that the links have 'event:' prepended so that I can catch them with a TextEvent listener.
protected function convertLinks(str:String):String
{
var p1:RegExp = /href|HREF="(.[^"]*)"/gs;
[Code]....
How can i modify my function so that links with 'event:' at the start are NOT matched and are left unchanged?
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Aug 21, 2011
I've gotten stuck on some issue using AS3 and RegEx. I'm trying to use a RegEx var to match out the ends of a mathematical expressions out of a string. But for some reason, the RegEx only matches the first expression and ignores the one after the conditional.
[Code]....
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Feb 10, 2012
Trying to replace a portion of a string with a "-" if it matches a string variable in AS3.
var re:RegExp = new RegExp(imageArray[j][1],"gi"); trace(imageArray[jTemp][2].replace(re,"-"));
imageArray[jTemp][2] is a string imageArray[j][1] is a string as well I'm not getting the result I expect. I would like trace above to return 'permanentContainer-' Here are the traces for the above variables
permanentContainer-temporaryContainer- temporaryContainer
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Jun 21, 2010
I'm trying to work with RegEx to split a large string into smaller sections, and as part of this I'm trying to replace all instances of a substring in this larger string. I've been trying to use the replace function but this only replaces the first instance of the substring. How can I replace al instances of the substring within the larger string?
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Aug 24, 2010
I've been trying to wrap my head around this for some time now, but haven't been able to come up with an elegant solution. The problem: I have a string with different characters ("ABDDEEDDC") and I need to know which character occurs the most.
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Aug 22, 2011
I have the following regex, which will match all the <br> and <br /> tags in a string:
/<br[s|/]*>/gi
I actually want to match every set of two consecutive tags, with valid matches being:
<br><br>
<br/><br>
<br><br/>
<br/><br/>
(and all variations with a space before the slash)
Obviously I can just double up the expression to /<br[s|/]*><br[s|/]*>/gi, but is there a shorter way of taking the first expression and saying "this, but twice"?
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Jun 6, 2011
I have absolutely no knowledge in Regex whatsoever. Basically what I'm trying to do is have an error class that I can use to call errors (obviously) which looks like this:
package avian.framework.errors
{
public class AvError extends Object
{
[Code].....
The idea is to replace {0} with the first parameter parsed in ...params, {1} with the second, etc.
I've done a bit of research and I think I've worked out that I need to search using this pattern:
var pattern:RegExp = /{d}/;
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Jul 13, 2011
I have a text field within Flash that contains a block of (obviously) text. What I want to do is perform a search on the content of the text field that returns the x & y coordinate and the width & height of the found text. The result will be used to place a visual element over that portion of the text box.
For example:
var pattern:RegExp = /d+/g;
var found:Array = box.text.match(pattern);
var i:String;
for each(i in found) {
/**
* Find the x, y, width, height of the matched text in the text field
* Use result to place transparent yellow box around text
*/
}
Which visually should result in something like:
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Sep 1, 2009
Code:
var s:String = '%include %unquote(&open.gtestit&close);';
var re:RegExp = /([%&]?w+)/g;
var a:Array = s.match(re);
trace(a.join('
'));
I'm splitting the string up into words (w) where the word might have an optional % or & in front of it. The output is what I expect:
Code:
%include
%unquote
&open
gtestit
&close
Is there a way to get the index of each matched string in one call? I know I can walk the original string using the resulting array and get indexes, but was hoping there was something similar to MATCH(). Something like:
Code:
var array:Array = s.index_match(re);
and the results would be:
Code:
array[0] = 0
array[1] = 9
array[2] = 18
array[3] = 24
array[4] = 31
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Nov 16, 2009
I am trying to find the generic links in strings. I've found a very handy regex on RegExr, in the community expressions:
(https?://)?(www.)?([a-zA-Z0-9_%]*).[a-z]{2,4}(.[a-z]{2})?((/[a-zA-Z0-9_%]*)+)?(.[a-z]*)?(:d{1,5})?
I tried to use it and it returns null, although the same string tested on RegExr works fine:
var linkRegEx:RegExp = new RegExp("(https?://)?(www.)?([a-zA-Z0-9_%]*).[a-z]{2,4}(.[a-z]{2})?((/[a-zA-Z0-9_%]*)+)?(.[a-z]*)?(:d{1,5})?","g");
var link:String = 'generic links: www.google.com http://www.google.com google.com';
[code]....
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Mar 4, 2010
I have a string that is similar to a path, but I have tried some regex patterns that are supposed to parse paths and they don't quite work.
Here's the string
f|MyApparel/Templates/Events/
I need the "name parts" between the slashes.
I tried (w+) but the array came back [0] = "f" and [1] = "f".
I tested the pattern on [URL] and it seems to work correctly.
Here's the AS code:
var pattern : RegExp = /(w+)/g;
var hierarchy : Array = pattern.exec(params.category_id);
params.name = hierarchy.pop() as String;
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Nov 2, 2010
I see Switch statement in:
switch() {
case 'string': ...;
}
but would hope if I could do this?
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Nov 2, 2010
I have some ActionScript code that splits a string using Regular Expression and lets me add content at the split location.
// AS3 Code
function formatTweetText(tweet:String ):String
{
[code]....
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Jun 10, 2011
I'm new to actionscript and i cant seem to get the regex syntax right in actionscript3. The task is straight forward, i want to make sure that the first two characters in a given string are alphabets and nothing else.[code]
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Dec 9, 2011
I don't know anything about regular expressions and I don't really have the time to study them at the moment.I have a string like this:test (22/22/22)I need to capture the test and the date 22/22/22 in an array. the test string could also be a multiple words string:test test(1) tes-t (22/22/22)should capture test test(1) tes-t and 22/22/22I have no idea how to get started on this. I managed to capture the date string with the parentheses by doing:(.*)but that really doesn't get me anywhere.
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Dec 30, 2011
In the below code if i replace st2 into the pattern of regexp without quotes, it works fine.Now since i get the regular expression from some other file, as it is shown in st2. I want to add that into the regexp pattern. But as in the below code it doesnt work.
<fx:Script>
import mx.controls.Alert
public function onClicking(){
[code].....
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Jan 14, 2012
I want to know if is possibile through regularexpression, count the numbers contained into a string and add a specified character near it.
For exemple, this is a string: Hello2all821abc13 This string contain 3 numbers: 2, 821 and 13 (note that the numbers contained into 821 and 13 are considered like an unique entity, not signle). I want to add near each of it the "-" symbol. Is it possible?
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May 12, 2011
I rarely use regular expressions and still have a hard time reading/writing them sometimes (getting better, though), but I came across a situation where I needed to split up sentences in a text file and store each sentence as a separate item in an array.
To do this, I have tried to use the split() function by passing it a regex to detect ends of sentences... for most cases, anyway, which includes ., !, or ?, optionally followed by " or )
Here's what I've created:
Code:
sentencesArray = textOriginal_txta.text.split(/(?<=(w[.!?]"?)?))s(?=((?"?[A-Z]))/);
(What this code does is split on condition of a blank space but only where it finds a preceding/prefix that includes end punctuation, plus a lookahead/suffix that contains the beginning of a sentence, such as a capital letter)
The problem is that this doesn't seem to work. It works like a charm when I test it in Expresso free regex writing and testing software), but then when I try to send it to the split, it doesn't split the items. Do I need to do escapes for special characters when sending regex input to a split?
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Sep 14, 2011
How to create an array from a string. The string will look something like this:
Code:
Main Idea
-Idea 1
--Idea 1 sub point 1
-Idea 2
--Idea 2 sub point 1
---Idea 2 sub point 1 subsub 1
---Idea 2 sub point 1 subsub 2
--Idea 2 sub point 2
-Idea 3
Each "-" indicates a child relationship or 'Sub'. Each child can have any number of children which can have any number of children.
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Apr 14, 2009
How would I write if I want to check if the beginning of a string match my request? Something like this but with real code
if(myString doesn't start with "http://"){
doSomething;
}
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Jan 10, 2011
I'm trying to find the number of newlines in a string using the Actionscript 3.0 RegExp engine. Using the string.match function and RegExp(" ","g") does not find the newlines in a string which contains newlines. Is there something I need to add to the pattern or something else that I am missing?
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Apr 4, 2011
I need to write a regex which will match URLs that do not have a specific query string name/value pair anywhere in its URL. All other query string names, and all other query string values with the same name should be matched. Other pages in the same directory (or sub-directories) should not be matched.URL...The query string name and value that I need to exclude from matches is:[code]How can I prevent matches when the string exists anywhere in the pattern?
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Feb 13, 2012
I would like to be able to replace a section of a string with a dash. The section being replaced will be variable.
var str:String = "permanentContainer-temporaryContainer-"
var test:String = "temp";
var pattern:RegExp = /-[(+test+)]+-/i;
trace( str.replace(pattern,"-"));
I would like the result to trace:
permanentContainer--oraryContainer-
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Feb 16, 2012
I have a flashVar variable that is coming into Flash, its URL encoded but I have already decoded it. My problem is I want the set of variables to be pushed into an array.
Let's say the variables are
[Code].....
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Oct 30, 2011
My question concerns the following tutorial I've been working through:Building a Flex Type-Ahead Text Input
I was successful in enabling a search of available terms using the characters entered in the input, but only irrespective of the location of the characters in the terms. However, I am wondering how one might have the characters match only the beginning of the terms.
For example, suppose I enter the string "app" into the text input. How can I get only "apple" and not, for instance, "pineapple" to appear as an option?
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Feb 6, 2010
How to compare a string with strings inside an array for a match? I have a file in which each sentence (or word) (generally string) is present in a new line. Opened the file and read the contents to a string.
Code:
private function readHandler(event:Event):void{
_str = _readStream.readUTFBytes(_readStream.bytesAvailable);
_strArray = _str.split(" "); //contains each string that appears in a new line
_length = _strArray.length;
[Code] .....
But this doesn't work. Seems like if(_input == _strArray[i]) never gets executed even if they are equal. What might be the problem. Is there some better way to so it?
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Oct 27, 2009
How do I get a word from a string?If a string is also an array I should be able to do it but so far no luck.Searching for a substring is useful if I know the correct index, like in[code]...
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