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Scala CharSequenceReader类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Scala中scala.util.parsing.input.CharSequenceReader的典型用法代码示例。如果您正苦于以下问题:Scala CharSequenceReader类的具体用法?Scala CharSequenceReader怎么用?Scala CharSequenceReader使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



在下文中一共展示了CharSequenceReader类的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Scala代码示例。

示例1: ApdlFlatSpec

//设置package包名称以及导入依赖的类
import apdl.ApdlParserException
import apdl.parser.MainParsers
import org.scalatest.FlatSpec
import org.scalatest.prop.Checkers

import scala.util.parsing.input.CharSequenceReader

abstract class ApdlFlatSpec extends FlatSpec with Checkers {

  val parser = new MainParsers

  import parser._

  implicit override val generatorDrivenConfig = PropertyCheckConfiguration(
    minSize = 100,
    sizeRange = 50
  )

  protected def parse[A](code: String, astParser: Parser[A]): A = {
    parser.parse(astParser, new PackratReader[Char](new CharSequenceReader(code))) match {
      case Success(result, next) =>
        if (!dropWs(next).atEnd) throw new ApdlParserException(s"Unable to parse completely $code: $next")
        else result
      case n: NoSuccess =>
        if (code != "") throw new ApdlParserException(s"Unable to parse $code: $n")
        else throw new ApdlParserException(s"Unable to parse '': $n")
    }
  }

  private def dropWs(input: parser.Input): parser.Input = {
    if (input.atEnd)
      input
    else {
      if (parser.ws.pattern.matcher(input.first.toString).matches())
        dropWs(input.rest)
      else
        input
    }
  }
} 
开发者ID:SnipyJulmy,项目名称:APDL,代码行数:41,代码来源:ApdlFlatSpec.scala


示例2: Main

//设置package包名称以及导入依赖的类
import scala.util.parsing.combinator._
import scala.util.parsing.input.CharSequenceReader
import scala.util.parsing.combinator.syntactical.StandardTokenParsers

object Main extends App {
  class OnesParser extends RegexParsers {    
    def ones: Parser[Any] = "1" ~ ones | "1"
  }

  class OnesPackratParser extends RegexParsers with PackratParsers {
    lazy val ones: PackratParser[Any] = ones ~ "1" | "1"
    def parseAll[T](p: Parser[T], input: String) =
      phrase(p)(new PackratReader(new CharSequenceReader(input)))
  }
  
  val parser = new OnesParser
  val input = "11111"
  println(parser.parseAll(parser.ones, input))

  val pparser = new OnesPackratParser
  println(pparser.parseAll(pparser.ones, input))
} 
开发者ID:yeahnoob,项目名称:scala-impatient-2e-code,代码行数:23,代码来源:Ones.scala


示例3: CommandParser

//设置package包名称以及导入依赖的类
package sbt.impl

import scala.util.parsing.combinator.Parsers
import scala.util.parsing.input.CharSequenceReader
import scala.util.parsing.input.CharArrayReader.EofCh


private[sbt] object CommandParser extends Parsers
{
	type Elem = Char
	def parse(commandString: String): Either[String, (String, List[String])] =
	{
		command(new CharSequenceReader(commandString.trim, 0)) match
		{
			case Success(id ~ args, next) => Right((id, args))
			case err: NoSuccess =>
			{
				val pos = err.next.pos
				Left("Could not parse command: (" + pos.line + "," + pos.column + "): " + err.msg)
			}
		}
	}
	def command = phrase(identifier ~! (argument*))
	def identifier = unquoted | err("Expected identifier")
	def argument = ( (whitespaceChar+) ~> (unquoted | quoted) )
	
	def unquoted: Parser[String] = ((unquotedChar ~! (unquotedMainChar*)) ^^ { case a ~ tail => (a :: tail).mkString("") })
	def quoted: Parser[String] = quote ~> quotedChars <~ (quote | err("Missing closing quote character"))

	def quotedChars: Parser[String] = (escape | nonescapeChar)*
	def escape: Parser[Char] = backslash ~> (escapeChar | err("Illegal escape"))
	def escapeChar: Parser[Char] = quote | backslash
	def nonescapeChar: Parser[Char] = elem("", ch => !isEscapeChar(ch) && ch != EofCh)
	def unquotedChar: Parser[Char] = elem("", ch => !isEscapeChar(ch) && !Character.isWhitespace(ch) && ch != EofCh)
	def unquotedMainChar: Parser[Char] = unquotedChar | (errorIfEscape ~> failure(""))

	private def errorIfEscape = (not(quote) | err("Unexpected quote character")) ~>
		(not(backslash) | err("Escape sequences can only occur in a quoted argument"))

	private def isEscapeChar(ch: Char) = ch == '\\' || ch == '"'
	
	def quote: Parser[Char] = '"'
	def backslash: Parser[Char] = '\\'
	def whitespaceChar: Parser[Char] = elem("whitespace", ch => Character.isWhitespace(ch))

	private implicit def toString(p: Parser[List[Char]]): Parser[String] = p ^^ {_ mkString "" }
} 
开发者ID:TomasPleml,项目名称:simple-build-tool,代码行数:48,代码来源:CommandParser.scala



注:本文中的scala.util.parsing.input.CharSequenceReader类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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上一篇:
Scala PrettyPrinter类代码示例发布时间:2022-05-23
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