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Is there a way to visualize hidden(invisible) characters in Firefox? (or other browser) like MS Word (or other text editors) does?

Say, I want to see (count) spaces, newlines, other invisible chars... ?

If not, are there any text editors that can display these invisible characters copied from Firefox?

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migrated from stackoverflow.com Feb 11 '11 at 16:19

This question came from our site for professional and enthusiast programmers.

    
Might be better at superuser.com -- interesting question though. – MatrixFrog Feb 3 '11 at 6:00
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Just curious: did you ever do a "view source"? If no: please do; do you still want to see all newlines and excessive whitespace such as indenting, which are, by design, ignored by a browser when rendering a page? – Arjan Feb 11 '11 at 16:24
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No, not really. You could replace them on-the-fly with printable characters, but then you won't have the original data any more.

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