diff options
Diffstat (limited to 'src/library/scalax/runtime/BoxedString.scala')
| -rw-r--r-- | src/library/scalax/runtime/BoxedString.scala | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/src/library/scalax/runtime/BoxedString.scala b/src/library/scalax/runtime/BoxedString.scala deleted file mode 100644 index ef5a8b43c7..0000000000 --- a/src/library/scalax/runtime/BoxedString.scala +++ /dev/null @@ -1,195 +0,0 @@ -/* __ *\ -** ________ ___ / / ___ Scala API ** -** / __/ __// _ | / / / _ | (c) 2002-2009, LAMP/EPFL ** -** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ ** -** /____/\___/_/ |_/____/_/ | | ** -** |/ ** -\* */ - -// $Id: RichString.scala 15602 2008-07-24 08:20:38Z washburn $ - - -package scalax.runtime - -import scala.util.matching.Regex -import scalax.collection._ -import scalax.collection.mutable.StringBuilder -import scalax.collection.generic -import scalax.collection.generic._ - -object BoxedString { - // just statics for rich string. - private final val LF: Char = 0x0A - private final val FF: Char = 0x0C - private final val CR: Char = 0x0D - private final val SU: Char = 0x1A -} - -import BoxedString._ - -class BoxedString(val self: String) extends StringVector[Char] with Proxy with PartialFunction[Int, Char] with Ordered[String] { - - /** Return element at index `n` - * @throws IndexOutofBoundsException if the index is not valid - */ - def apply(n: Int): Char = self charAt n - - def length = self.length - - override def unbox = self - override def mkString = self - override def toString = self - - /** return n times the current string - */ - def * (n: Int): String = { - val buf = new StringBuilder - for (i <- 0 until n) buf append self - buf.toString - } - - override def compare(other: String) = self compareTo other - - private def isLineBreak(c: Char) = c == LF || c == FF - - /** <p> - * Strip trailing line end character from this string if it has one. - * A line end character is one of - * </p> - * <ul style="list-style-type: none;"> - * <li>LF - line feed (0x0A hex)</li> - * <li>FF - form feed (0x0C hex)</li> - * </ul> - * <p> - * If a line feed character LF is preceded by a carriage return CR - * (0x0D hex), the CR character is also stripped (Windows convention). - * </p> - */ - def stripLineEnd: String = { - val len = self.length - if (len == 0) self - else { - val last = apply(len - 1) - if (isLineBreak(last)) - self.substring(0, if (last == LF && len >= 2 && apply(len - 2) == CR) len - 2 else len - 1) - else - self - } - } - - /** <p> - * Return all lines in this string in an iterator, including trailing - * line end characters. - * </p> - * <p> - * The number of strings returned is one greater than the number of line - * end characters in this string. For an empty string, a single empty - * line is returned. A line end character is one of - * </p> - * <ul style="list-style-type: none;"> - * <li>LF - line feed (0x0A hex)</li> - * <li>FF - form feed (0x0C hex)</li> - * </ul> - */ - def linesWithSeparators = new Iterator[String] { - val len = self.length - var index = 0 - def hasNext: Boolean = index < len - def next(): String = { - if (index >= len) throw new NoSuchElementException("next on empty iterator") - val start = index - while (index < len && !isLineBreak(apply(index))) index += 1 - index += 1 - self.substring(start, index min len) - } - } - - /** Return all lines in this string in an iterator, excluding trailing line - * end characters, i.e. apply <code>.stripLineEnd</code> to all lines - * returned by <code>linesWithSeparators</code>. - */ - def lines: Iterator[String] = - linesWithSeparators map (line => new BoxedString(line).stripLineEnd) - - /** Returns this string with first character converted to upper case */ - def capitalize: String = - if (self == null) null - else if (self.length == 0) "" - else { - val chars = self.toCharArray - chars(0) = chars(0).toUpperCase - new String(chars) - } - - /** <p> - * For every line in this string: - * </p> - * <blockquote> - * Strip a leading prefix consisting of blanks or control characters - * followed by <code>marginChar</code> from the line. - * </blockquote> - */ - def stripMargin(marginChar: Char): String = { - val buf = new StringBuilder - for (line <- linesWithSeparators) { - val len = line.length - var index = 0 - while (index < len && line.charAt(index) <= ' ') index += 1 - buf append - (if (index < len && line.charAt(index) == marginChar) line.substring(index + 1) else line) - } - buf.toString - } - - /** <p> - * For every line in this string: - * </p> - * <blockquote> - * Strip a leading prefix consisting of blanks or control characters - * followed by <code>|</code> from the line. - * </blockquote> - */ - def stripMargin: String = stripMargin('|') - - private def escape(ch: Char): String = "\\Q" + ch + "\\E" - - @throws(classOf[java.util.regex.PatternSyntaxException]) - def split(separator: Char): Array[String] = self.split(escape(separator)) - - @throws(classOf[java.util.regex.PatternSyntaxException]) - def split(separators: Array[Char]): Array[String] = { - val re = separators.foldLeft("[")(_+escape(_)) + "]" - self.split(re) - } - - /** You can follow a string with `.r', turning - * it into a Regex. E.g. - * - * """A\w*""".r is the regular expression for identifiers starting with `A'. - */ - def r: Regex = new Regex(self) - - def toBoolean: Boolean = parseBoolean(self) - def toByte: Byte = java.lang.Byte.parseByte(self) - def toShort: Short = java.lang.Short.parseShort(self) - def toInt: Int = java.lang.Integer.parseInt(self) - def toLong: Long = java.lang.Long.parseLong(self) - def toFloat: Float = java.lang.Float.parseFloat(self) - def toDouble: Double = java.lang.Double.parseDouble(self) - - private def parseBoolean(s: String): Boolean = - if (s != null) s.toLowerCase match { - case "true" => true - case "false" => false - case _ => throw new NumberFormatException("For input string: \""+s+"\"") - } - else - throw new NumberFormatException("For input string: \"null\"") - - def toArray: Array[Char] = { - val result = new Array[Char](length) - self.getChars(0, length, result, 0) - result - } -} - |