For example, in this text:
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc eu tellus vel nunc pretium lacinia. Proin sed lorem. Cras sed ipsum. Nunc a libero quis risus sollicitudin imperdiet.
I want to match the word after 'ipsum'.
...
I need to find all matches of word which strictly begins with "$" and contains only digits. So I wrote
[$]\d+
which gave me 4 matches for
$10 $10 $20a a$20
so I thought of using word boundaries using \b:
[$]\d+\b
But it again matched
a$20 for me.
I tried
\b[$]\d+\b
but I failed.
I'm looking for saying, ACCEPT ONLY IF THE ...
I'm wanting to match a list of words which is easy enough when those words are truly words. For example /\b (pop|push) \b/gsx when ran against the string
pop gave the door a push but it popped back
will match the words pop and push but not popped.
I need similar functionality for words that contain characters that would normally q...
I am using Java regexes in Java 1.6 (inter alia to parse numeric output) and cannot find a precise definition of \b ("word boundary"). I had assumed that "-12" would be an "integer word" (matched by \b\-?\d+\b) but it appears that this does not work. I'd be grateful to know of ways of matching space-separated numbers.
Example:
Pat...
I am working on an application that searches text using regular expressions based on input from a user. One option the user has is to include a "Match 0 or more characters" wildcard using the asterisk. I need this to only match between word boundaries. My first attempt was to convert all asterisks to (?:(?=\B).)*, which works fine for mo...
i want to check if a string contains a field value as a substring or not.
select * from mytable where instr("mystring", column_name);
but this does not search on word boundaries.
select * from mytable where instr("mystring", concat('[[:<:]]',column_name,'[[:>:]]');
does not work either. how to correct this?
...
I am attempting to scan a string of words and look for the presence of a particular word(case insensitive) in an XSLT 2.0 stylesheet using REGEX.
I have a list of words that I wish to iterate over and determine whether or not they exist within a given string.
I want to match on a word anywhere within the given text, but I do not want t...
Hi,
I have the following php code in a utf-8 php file:
var_dump(setlocale(LC_CTYPE, 'de_DE.utf8', 'German_Germany.utf-8', 'de_DE', 'german'));
var_dump(mb_internal_encoding());
var_dump(mb_internal_encoding('utf-8'));
var_dump(mb_internal_encoding());
var_dump(mb_regex_encoding());
var_dump(mb_regex_encoding('utf-8'));
var_dump(mb_regex...
I am wondering why the following regex does not match.
string query = "\"1 2\" 3";
string pattern = string.Format(@"\b{0}\b", Regex.Escape("\"1 2\""));
string repl = Regex.Replace(query, pattern, "", RegexOptions.CultureInvariant);
Note that if I remove the word boundary characters (\b) from pattern, it matches fine. Is there somethi...
In JavaScript:
"ab abc cab ab ab".replace(/\bab\b/g, "AB");
correctly gives me:
"AB abc cab AB AB"
When I use utf-8 characters though:
"αβ αβγ γαβ αβ αβ".replace(/\bαβ\b/g, "AB");
the word boundary operator doesn't seem to work:
"αβ αβγ γαβ αβ αβ"
Is there a solution to this?
...
Hi Guys,
A colleague asked me about a Regular expression problem, and I can't seem to find and answer for him.
We're using boundaries to highlight certain lengths of text in a text editor, but here's some sample code that shows the problem:
<script type="text/javascript">
var str = "Alpha , Beta, Gamma Delta Epsilon, AAlphaa, Beta Alp...
I'm having trouble getting regular expressions with leading / trailing $'s to match in Java (1.6.20).
From this code:
System.out.println( "$40".matches("\\b\\Q$40\\E\\b") );
System.out.println( "$40".matches(".*\\Q$40\\E.*") );
System.out.println( "$40".matches("\\Q$40\\E") );
System.out.println( " ------ " );
System.out.println( "40$"...
Hi everyone, I am running into a strange regex issue....
I have a document where I am doing a replace... as an example I want to replace
"DEXX" with "DEXX/AREX"
and then with the next substitution replace...
"AREX" with "AREX/CUBE"
DEXX and AREX are stored in a hash like so....
"DEXX" => "AREX",
"AREX" => "CUBE"
The regex I have is thi...
This example works fine:
echo preg_replace("/\bI\b/u", 'we', "I can"); // we can
This one were russian letters are used does not work even though I use "u" modifier:
echo preg_replace("/\bЯ\b/u", 'мы', 'Я могу'); // still "Я могу"
So the question is what should I do to fix this?
Thanks.
...
Hi,
I am having this problem with word boundary identification. I removed all the markup of the wikipedia document, now I want to get a list of entities.(meaningful terms). I am planning to take bi-grams, tri-grams of the document and check if it exists in dictionary(wordnet). Is there a better way to achieve this.
Below is the sample ...
I have a JavaScript regular expression which basically finds two-letter words. The problem seems to be that it interprets accented characters as word boundaries. Indeed, it seems that
A word boundary ("\b") is a spot
between two characters that has a "\w"
on one side of it and a "\W" on the
other side of it (in either order),
...
Does PostgreSQL support \b?
I'm trying \bAB\b but it doesn't match anything, whereas (\W|^)AB(\W|$) does. These 2 expressions are essentially the same, aren't they?
...
I have a string that represents a paragraph of text.
var paragraph = "It is important that the word cold is not partially selected where we search for the word old";
I want to be able to search this paragraph for the index of a "word" and have it do an exact match on a "word". For example, when searching for "old". I should only get...
I have a list:
var myList = new List<string> { "red", "blue", "green" };
I have a string:
var myString = "Alfred has a red and blue tie";
I am trying to get a count of matches of words in myList within myString. Currently, I am using .Contains(), which gets me a count of 3 because it is picking up the "red" in "Alfred". I need to...
Given the following code:
var myList = new List<string> { "red shirt", "blue", "green", "red" };
Regex r = new Regex("\\b(" + string.Join("|", myList.ToArray()) + ")\\b");
MatchCollection m = r.Matches("Alfred has a red shirt and blue tie");
I want the result of m to include "red shirt", "blue", "red" since all those are in the string...