Visual Studio Code Search and Replace with Regular Expressions
I want to use “Search And Replace” in Visual Studio Code to change every instance of <h1>content</h1> to #### content within a document … Read more
regex
Regular Expression to match only alphabetic characters
I was wondering If I could get a regular expression which will match a string that only has alphabetic characters, and that alone. … Read more
What 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 … Read more
What is the difference between .*? and .* regular expressions?
I’m trying to split up a string into two parts using regex. The string is formatted as follows: text to extract<number> I’ve been … Read more
How to replace a whole line with sed?
Suppose I have a file with lines aaa=bbb Now I would like to replace them with: aaa=xxx I can do that as follows: … Read more
How to check if a line is blank using regex
I am trying to make simple regex that will check if a line is blank or not. Case; ” some” // not blank … Read more
How do I perform a Perl substitution on a string while keeping the original?
In Perl, what is a good way to perform a replacement on a string using a regular expression and store the value in … Read more
(grep) Regex to match non-ASCII characters?
On Linux, I have a directory with lots of files. Some of them have non-ASCII characters, but they are all valid UTF-8. One … Read more
RegEx to make sure that the string contains at least one lower case char, upper case char, digit and symbol
What is the regex to make sure that a given string contains at least one character from each of the following categories. Lowercase … Read more
Regular expression to match standard 10 digit phone number
I want to write a regular expression for a standard US type phone number that supports the following formats: ###-###-#### (###) ###-#### ### … Read more