Back references are regular expression constructs that make use of capturing in regex to perform replacement based on parts of the matched string captured during a match sequence in the regexp pattern.
You can backreference like this in JavaScript: var str = "123 $test 123"; str = str.replace(/(\$)([a-z]+)/gi, "$2"); This would (quite silly) replace "$…
javascript regex backreferenceI have tried to use the Notepad++ Search/Replace with a Regular Expression to replace specific words with shorter versions …
regex escaping notepad++ replace backreferenceIn Java, and it seems in a few other languages, backreferences in the pattern are preceded by a backslash (e.…
java regex syntax replace backreferenceI would like to patch some text data extracted from web pages. sample: t="First sentence. Second sentence.Third sentence." …
ruby regex reference gsub backreferenceif a string has this predicted format: value = "hello and good morning" Where the " (quotations) might also be ' (single …
regex backreference regex-group negateI have big problems understanding how to use preg_replace with backreferencing. I have a plain-text string and want to …
php preg-replace backreferenceWhat's the best way to clear/reset all regex matching variables? Example how $1 isn't reset between regex operations and uses …
regex perl backreferenceGiven a regular expression containing capture groups (parentheses) and a string, how can I obtain all the substrings matching the …
regex r backreferenceThe sed manual clearly states that the available backreferences available for the replacement string in a substitute are numbered \1 through \9. …
regex shell sed backreferenceI have the following in my .htaccess file: RewriteCond %{QUERY_STRING} ^route\=product\/category\&path\=35\&page\=([0-9]+)$ RewriteRule ^…
mod-rewrite backreference query-string