Implementing External DSLs Using Scala Parser Combinators
•Télécharger en tant que PPT, PDF•
7 j'aime•4,970 vues
Slides from talk I gave at St. Louis Lambda Lounge (http://lambdalounge.org/) for the Dec. 2009 meeting.
![External vs Internal DSL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommandé
Contenu connexe
Tendances
Tendances (19)
En vedette
En vedette (20)
Similaire à Implementing External DSLs Using Scala Parser Combinators
Similaire à Implementing External DSLs Using Scala Parser Combinators (20)
Dernier
Dernier (20)
Implementing External DSLs Using Scala Parser Combinators
- 1. Implementing External DSLs Using Scala Parser Combinators St. Louis Lambda Lounge Sept. 3, 2009 Tim Dalton Senior Software Engineer Object Computing Inc.
- 32. Demonstration
Notes de l'éditeur
- (|) = OR logic { } = repetition
- The multiline string notation is used so escaping “\\” in the regex is not needed
- Internal DSLs in Scala leverage implicit conversion to a great degree to allow a more flexible “syntax”
- ~ is a case class.
- Because statement and repeat invoke each other and therefore can be invoked recursively, The return type for one must be specified
- There is also rep1sep
- Demonstrate no so precise message “RT” -> “ET”
- For some reason Scala compile didn’t like { Turn(-_) }
- Tail Recursive !!