miksilo.modularLanguages.deltas.yaml.CheckIndentationGrammar.scala Maven / Gradle / Ivy
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package miksilo.modularLanguages.deltas.yaml
import miksilo.modularLanguages.core.bigrammar.BiGrammarToParser.Result
import miksilo.modularLanguages.core.bigrammar.{BiGrammar, BiGrammarSequenceCombinatorsExtension, BiGrammarToParser}
import miksilo.modularLanguages.core.bigrammar.grammars.{BiSequence, CustomGrammar}
import miksilo.modularLanguages.core.bigrammar.printer.Printer.NodePrinter
import miksilo.modularLanguages.core.deltas.grammars.LanguageGrammars
import miksilo.editorParser.responsiveDocument.ResponsiveDocument
class CheckIndentationGrammar(deltaPredicate: Int => Boolean, property: String, inner: BiGrammar) extends CustomGrammar {
override def print(toDocumentInner: BiGrammar => ResponsiveDocument) = toDocumentInner(inner)
override def createPrinter(recursive: BiGrammar => NodePrinter) = recursive(inner)
override def toParser(recursive: BiGrammar => BiGrammarToParser.Parser[Result]) = {
BiGrammarToParser.CheckIndentation(deltaPredicate, property, recursive(inner))
}
override def children = Seq(inner)
override def withChildren(newChildren: Seq[BiGrammar]) = new WithIndentationGrammar(newChildren.head)
override def containsParser(recursive: BiGrammar => Boolean) = true
}
object CheckIndentationGrammar {
def aligned[Element, Sum](grammars: LanguageGrammars, element: BiGrammar): BiGrammar = {
import grammars._
val many = equal(element).manyVertical
new WithIndentationGrammar(BiGrammarSequenceCombinatorsExtension.someMap(
new BiSequence(element, many, BiSequence.identity, false)))
}
def equal[Result](inner: BiGrammar) = new CheckIndentationGrammar(delta => delta == 0, "equal to", inner)
def greaterThanOrEqualTo[Result](inner: BiGrammar) = new CheckIndentationGrammar(delta => {
delta >= 0
}, "greater than or equal to", inner)
def greaterThan[Result](inner: BiGrammar) = new CheckIndentationGrammar(delta => {
delta > 0
}, "greater than", inner)
}