Writing data to the perl program that is running

[jackz15]

I'm making a calulator which stores functions along with its operators in a hash, the user can even create their own functions. But the problem is that the functions dissappear after the program exists, one thing i could do, like i did for storing user create variables, i could save the operations in another file and then upload it into the program when the program starts. But having two separate files to save is a bit of a hassle and its much better to just add the function into the operations hash in my program. But I can't figure out how one could do that, can someone lend me a hand?

 

[TonyGroves]

You can store data at the end of your program, after the __END__ or __DATA__ marker, and read it using the filehandle DATA when the program starts. You can write to the program file using normal file-handling methods.

However, programs are normally made read-only, for security reasons. You might want to consider that aspect.

 

[jackz15]

that is true... perhaps i'll just make another file

 

[KevinADC]

Use the "storable" module to save your data structures to file to make them persistent.

 

[MikeLacey]

storable would be the direction I'd be investigating

Mike

The options are: fast, cheap and right - pick any two.

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