MICM now has lambda rate constants, processes which allow the rate of a reaction to be determined by a function. To start exploring QUACS, Texas A&M capstone still will implement a version of the lambda rate constant in javascript. We will need to allow parsing for this here. For now, we won't interpret the function; we will leave that job for later and for musica to do.

Acceptance criteria

• Lambda rate constants are added to v1 only
• Tests for lambda rate constants exist to v1 only
• The example files are updated to include lambda rate constants

Ideas

• A new struct is added in reaction types which is called LambdaRateConstant, or some equivalent name, which contains a string label and a string representing the function
• Add a vector of lambda rate constant reactions to the reactions struct
• Validation parameters for v1 are added for the lambda rate constant type and function
• A new parser is declared in the reaction parsers which will parse the lambda rate constant
• Implement this new parser in src/v1/reactions
• Add this new parser as an option in the v1 mechanism parsers
• Add configurations to the v1 examples for both yaml and json
• Add v1 tests for the new lambda parser
• Update the v1 integration tests and check that lambda reactions exist when reading the full examples