Whitespace characters in the middle are not affected. /\b(is)(?!\s+not)\b/ig,"REALLY $1" *** Default Example *** Replaces "is" with "REALLY is", unless it says "is not" and also keeps the case of "is". The expression starts with \b so "is" in the middle of words like...
Text += "The regular expression pattern is: " + vbCrLf outputBLock.Text += " " + pattern + vbCrLf ' Get text that matches regular expression pattern. Dim matches As MatchCollection = Regex.Matches(input, pattern, RegexOptions.IgnorePatternWhitespace) outputBlock.Text += String.Format("Found ...
First I use the Options field to store the regular expression options for the functions. In this case, I've selected RegexOptions.SingleLine and RegexOptions.IgnorePatternWhitespace. The former specifies single-line mode, and the latter eliminates unescaped whitespace from the ...
First I use the Options field to store the regular expression options for the functions. In this case, I've selected RegexOptions.SingleLine and RegexOptions.IgnorePatternWhitespace. The former specifies single-line mode, and the latter eliminates unescaped whitespace from the regu...
40.Write a Python program to remove all whitespaces from a string. Click me to see the solution 41.Write a Python program to remove everything except alphanumeric characters from a string. Click me to see the solution 42.Write a Python program to find URLs in a string. ...
This term describes the search expression that we will be using to search our target string, that is, the pattern we use to find what we want. escape sequence An escape sequence is a way of indicating that we want to use one of our metacharacters as a literal. In a regular expression ...
change the order of the columns in addition to merging two columns to form a new column value. The particular piece of software that needs this data will not work if there are any whitespace characters (spaces or tabs) before or after the commas. So we must remove whitespace around the ...
With a single regular-expression search-and-replace command, you can find and highlight doubled words in the document. With another, you can remove all lines without doubled words (leaving only the lines of interest left to report). Finally, with a third, you can ensure that each line ...
If you want to place a whitespace or # characters in the pattern, then you have to prefix them with / or encode them using hex notations (\xNN). You can specify the modifier in the expression using the (?key) or (?-key) syntax (where key stands for the modifier key and minus sig...
ThefindAllmethod returns a sequence of all occurrences of a regular expression within the input string. regex_findall.kt package com.zetcode fun main() { val text = "I saw a fox in the wood. The fox had red fur." val pattern = "fox".toRegex() ...