I am having an issue with using regex to extract URLs from a text and then modifying all the matches within the replacement string using a function. Below is a simplified example of what I am trying to accomplish. Is it possible to achieve something like this?
var exp = /\b((http:\/\/|https:\/\/)[\S]*)/g;
text = text.replace(exp, "<a href=\"$1\" title=\""+parseUri("$1").host+"\"></a>");
Include a custom function in the 2nd parameter of the .replace method:
var exp = /\bhttps?:\/\/[\S]*/g;
text = text.replace(exp, function ($0) {
return '<a href="' + $0 + '" title="' + parseUri($0).host + '"></a>'
});
(Keep in mind that $0 is just a placeholder name and can be changed).
Refer to the documentation of String.replace on MDN for details on the arguments required in the replacement function. The initial argument represents the entire captured text by the regex pattern. Subsequently, any additional arguments correspond to the content captured by individual groups in the regex.
I have also modified the regex pattern slightly by removing \b, as it is an assertion and does not consume any actual text.
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