Remove special character of substring only by Regular Expression

Question

<html lang="en">
  ;;;;;;
  <body>
    <script>
      var a = 3;
      var b = a * 10;
    </script>
  </body>
</html>

This is is content of a string variable of my project. And I want to remove ; of javascript code, not remove ; above the <body> Only remove ; between <script> and </script> Is it possible by Regular Expression?

The purpose to do this is that I want to remove unnecessary characters of string, and the string can include javascript and other language. But as you know javascript allow semicolons and no-semicolons.

Actually, the code string what I want to remove characters is for compare with other string. — Ryuhei Matsuda, Oct 11 '18 at 06:33
Please _don't_ attempt to parse HTML using regex, certainly not nested content as you seem to have here. Regex + HTML = generally evil ^ ^ — Tim Biegeleisen, Oct 11 '18 at 06:36
`Actually, the code what I want to remove characters is for compare with other string.` then remove during the compare, not from the actual string — StudioTime, Oct 11 '18 at 06:36
The string can include solidity, javascript, .... not only html and javascript. — Ryuhei Matsuda, Oct 11 '18 at 06:37
@DarrenSweeney So my question is that how to remove it by Regex. Is it impossible by Regex? — Ryuhei Matsuda, Oct 11 '18 at 06:38
Yes, it's possible - Google `javascript remove characters regex` — StudioTime, Oct 11 '18 at 06:40
@DarrenSweeney Remove special characters between , not remove all special characters. There is `;;;;;` above , but it's example. The string can include other `;` out of `` — Ryuhei Matsuda, Oct 11 '18 at 06:43
as already said, regexp is the wrong tool here. See https://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags/1732454#1732454 . However, if "being after the exact `` string" in your html file is your only requirement, you can use a lookbehind. But it won't work properly if for instance you have litteral text `` somewhere in a script before the HTML tag `` — Pac0, Oct 11 '18 at 11:14

score 0 · Accepted Answer · edited Jun 20 '20 at 09:12

0

Short answer

You can try Regex lookbehind. Working example

Problem - Less Browser support

Long answer

You can use Regex capturing group to search for the semicolon which needs to be removed using the following pattern:

/(<script>[\S\s]*);(?=[\s\S]*<\/script>)/g

And then, you can use String.replace() method to remove the semicolon. Working example

edited Jun 20 '20 at 09:12

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answered Oct 11 '18 at 08:33

vrintle

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Remove special character of substring only by Regular Expression

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