Add option to specify parameters in stylesheet.xml

[ustroetz]

I like to run a query inside my stylesheet to get a certain feature from my database. It would be nice if I could specify a parameter (e.g. an ID) that will be used inside the function in the Style-sheet.

[Zverik]

Great idea, I would need that for my stylesheet also, e.g. for specifying a GPX trace location.

[Zverik]

I've added variables in format ${name:default} (or simply ${name} for required variables). To process them, use --vars name1=value1 name2=value2 option, or --vars without keys to use default values. Special characters in values (not default) are xml-screened, so do not enclose variables in CDATA.

Please test this, in case I missed some obvious bug or use-case.

[ustroetz]

Test it and it works wonderful! Thanks a lot Zverik for implementing this so quickly. Btw great tool. Saved me a ton of work :)

[ustroetz]

Zverik, can you please make an account on GITTIP? My boss would like to donate some money to you for building this feature for us so quickly.

[Zverik]

I didn't know about this service :) Just signed up, thanks.