boost::regex_search taking too long

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C++

Boost

Hi all,

I have a piece of code that will try to extract URLs (through the use of regexs) from a piece of text. My code works fine when the text is small, however, when having a very large text, the boost::regex_search function takes almost 1 minute to complete.

This is way too much executing time because on other texts, the boost::regex_search takes 2 milliseconds at most, which is my scenario is acceptable. However, 1 minute is definitely too much.

As such, I need to find a way how to stop the function boost::regex_search after a few milliseconds. Is this even possible? Are there other solutions to this? I don't want to change the regex expression because it has always worked correctly and efficiently. Also this problem is a one off.

Thanks for your time and any suggestions are greatly welcome.