Answer by user4779 for What is a word boundary in regex?
Reference: Mastering Regular Expressions (Jeffrey E.F. Friedl) - O'Reilly\b is equivalent to (?<!\w)(?=\w)|(?<=\w)(?!\w)
View ArticleAnswer by Daksh Gargas for What is a word boundary in regex?
I would like to explain Alan Moore's answerA word boundary is a position that is either preceded by a word character and not followed by one or followed by a word character and not preceded by...
View ArticleAnswer by AnubhavShakya for What is a word boundary in regex?
Word boundary \b is used where one word should be a word character and another one a non-word character.Regular Expression for negative number should be--?\b\d+\bcheck working DEMO
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Answer by Soner from The Ottoman Empire for What is a word boundary in regex?
In the course of learning regular expression, I was really stuck in the metacharacter which is \b. I indeed didn't comprehend its meaning while I was asking myself "what it is, what it is"...
View ArticleAnswer by vic for What is a word boundary in regex?
when you use \\b(\\w+)+\\b that means exact match with a word containing only word characters ([a-zA-Z0-9])in your case for example setting \\b at the begining of regex will accept -12(with space) but...
View ArticleAnswer by Tihamer for What is a word boundary in regex?
I ran into an even worse problem when searching text for words like .NET, C++, C#, and C. You would think that computer programmers would know better than to name a language something that is hard to...
View ArticleAnswer by tchrist for What is a word boundary in regex?
I talk about what \b-style regex boundaries actually are here. The short story is that they’re conditional. Their behavior depends on what they’re next to.# same as using a \b before:(?(?=\w)...
View ArticleAnswer by Alan Moore for What is a word boundary in regex?
A word boundary is a position that is either preceded by a word character and not followed by one, or followed by a word character and not preceded by one.
View ArticleAnswer by WolfmanDragon for What is a word boundary in regex?
A word boundary can occur in one of three positions:Before the first character in the string, if the first character is a word character. After the last character in the string, if the last character...
View ArticleAnswer by Brent Writes Code for What is a word boundary in regex?
Check out the documentation on boundary conditions:http://java.sun.com/docs/books/tutorial/essential/regex/bounds.htmlCheck out this sample:public static void main(final String[] args) { String x = "I...
View ArticleAnswer by brianary for What is a word boundary in regex?
A word boundary, in most regex dialects, is a position between \w and \W (non-word char), or at the beginning or end of a string if it begins or ends (respectively) with a word character...
View ArticleAnswer by Sean for What is a word boundary in regex?
I believe that your problem is due to the fact that - is not a word character. Thus, the word boundary will match after the -, and so will not capture it. Word boundaries match before the first and...
View ArticleAnswer by user130076 for What is a word boundary in regex?
I think it's the boundary (i.e. character following) of the last match or the beginning or end of the string.
View ArticleWhat is a word boundary in regex?
I'm trying to use regexes to match space-separated numbers.I can't 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...
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