Content containing "S and other characters interference regular solution

I found that there are some characters in the content of the article display, the regular matching aspects of the problem, such as the following characters:
"s and {} and so on.

For example, Discuz's portal article shows that there is no good deal with this problem, I published an article containing the "S" character, after publishing, the article shows blank. The initial guess is that these special characters conflict with some of the meta characters of the regular, how can i solve this problem? It seems that it is not possible to add escape.

Reply to discussion (solution)

Escape, the pattern modifier plus an "I" Try?

Escaping should be possible, how is your code written?

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