Looking for simple pattern/algorithm to parse text with tokens

[ben josh]

Hello all
i have several tamplets text in this tamplets text i have tokens that represent some actions
i need to do ( usually replace it with different string ) when i process the text in my application
the actions i need to do based on the tokens in the string will be activate from different sources
for example if token called @_db_name_@ will be found in the application i will know
i need to replace it with name coming out from the DB , and if i will find the token @_calc_id_@
in the application i will know i need to calculate the id of the object based on X and Y
im looking for common pattern or algorithm that will help me to do it more generic .
Thanks allot

[Marco Ehrentreich]

Hi Meir,

usually it's the most efficient way to do this with regular expressions. If you're absolutely not familiar with regular expression it may seem difficult and strange at first but it's worth the effort of learning. Have a look at the corresponding Sun tutorial. Regular expressions let you find such patterns and simply replace the text or invoke some action.

Marco

[Ilja Preuss]

Also take a look at the Command or Strategy pattern.