create framework for supplying parameters to plugins

[danlangford]

currently a plugin syntax can only have a name and a single string expression. i would like to see a way in which we can reliably supply more data to plugins. my proposal is a simple key=value pair. i would like to propose that every single piece of data sent into the plugin be a named parameter and allow plugins to specify somehow a default parameter permitting 1 single non-named parameter.

examples

• from permit the RollPlugin to accept a min #6 <roll 1d4-2 min=0>
• from permit a table to be rolled on multiple times #7 <table forestAmbush rolls=2>
• also valid:
  • <roll expr=1d4-2 min=0>
  • <roll expr=1d4-2>
  • <roll 1d4-2>
  • <table name=forestAmbush rolls=2>
  • <table name=forestAmbush>
  • <table forestAmbush>