Help!!! EL function and quotes

Hello,
We have a lot of quotes and single quotes in our code, therefore we need to use a coding standard like "if an EL function argument is a string literal, use doble quote to surround it ".
We have trying to use this sentence:
${fn:replace(mytext,"'","''")} --> the first argument is a single quote between double quotes
--> the second argument is two single quotes between double quotes
The compiler gives the error: "Unterminated tag ${"
If we substitute the single quote in the first argument for other character, it works.
Why cannot we use a single quote between double quotes??
(IDE 5.0, Sun One AppServ 8.2)
Thanks a lot in advance.

Thanks for your response evnafets,
I've tried with all possible combinations with the backslash. The compiler is only happy with ${var,"\\\\'","''"}, but when it runs, it does nothing, like the first argument was a blank.
I'm afraid that our project is not a "typical" JSP/JSTL project. We have to use a given enviroment, in which there are some "mandatory" elements specified by our customer: Sun One AppServer, Solaris8, and some custom tags. One of this tags is an alternative for the standard sql tag library, but this custom sql tag puts the sql sentence in a tag attribute, instead of using the body.
It seems that JVM 1.5 and JSTL 2.0 are much better than the previous releases, but they are only available in Sun One AppServer 9.0, which is very recent and it is not compatible with Solaris8. Indeed, only Sun One AppServer 8.1 works in Solaris8.

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