本文整理汇总了Scala中scala.util.parsing.input.CharSequenceReader类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
}
}
} 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))
} 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 "" }
}