本文继续讨论一个简单的计算器DSL,以展示函数性语言在构建“外部”DSL的强大功能,并在此过程中解决将文本输入转换成用于解释的AST的问题。为了解析文本输入,作者引入了解析器组合子(parsercombinator),这是一个专门为这项任务设计的标准Scala库。 2009-06-19 11:42:09 Scala计算器解析 从Scala看canEqual与正确的的e...
This quick tour is only a small subset of the full Jsonnet language, but will be enough for this tutorial. Parsing JsonnetTo parse Jsonnet, we will be using the Fastparse library introduced in this blog post:Easy Parsing with Parser Combinators Defining the Syntax Tree...
{{ message }} txdv / awesome-scala Public forked from lauris/awesome-scala Notifications You must be signed in to change notification settings Fork 0 Star 0 A community driven list of useful Scala libraries, frameworks and software. License...
scala-parser-combinators simple combinator-based parsing for Scala. formerly part of the Scala standard library, now a separate community-maintained module cats-parse A parsing library for the cats ecosystem scallion LL(1) parser combinators in Scala Sbt...
Part 2 Functional design and combinator libraries Read in liveBook 7. Purely functional parallelism Read in liveBook 8. Property-based testing Read in liveBook 9. Parser combinators Part 3 Common structures in functional design Read in liveBook 10. Monoids Read in liveBook 11. Monads ...
Scala递归是指在Scala编程语言中使用递归算法解决问题的方法。递归是一种自我调用的算法,通过将问题分解为更小的子问题来解决复杂的问题。 Scala递归的优势在于它可以简化代码实现,并且能够处理复杂的问题。递归算法通常使用较少的代码行数来实现,相比于迭代算法更加简洁。此外,递归还可以提高代码的可读性和可维护性,使...
Chapter 31"Combinator Parsing," shows how to build parsers using Scala's library of parser combinators. Chapter 32"GUI Programming," gives a quick tour of a Scala library that simplifies GUI programming with Swing. Chapter 33"TheSCellsSpreadsheet," ties everything together by showing a complete...
You can relax this constraint by using the `tolerantJson` body parser.The above example can be made even more concise by using body parsers with a typed validation function. See the savePlaceConcise example in the JSON with HTTP documentation. ...
Twitter API与Scala的交互 这个系列虽然更新的比较慢,但仍然在连载中,有兴趣的读者们可以时常关注一下。如果您感觉这个系列不错,想要更深入的学习Scala,以下是其他您可以参考的Scala教程系列: Scala代码实例之Kestrel A Scala Tutorial for Java programmers 专题:Scala编程语言...
In this tutorial, we’ll see why and how to use SBT to check our project dependency tree. 2. SBT Dependencies SBT is the most usual build tool for Scala projects. As a project gets more complex, it will increase the number of dependencies. And each dependency brings other dependencies, ...