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/* NSC -- new Scala compiler
* Copyright 2005-2013 LAMP/EPFL
* @author Paul Phillips
*/
package scala.tools.nsc
package interpreter
import util.stringFromWriter
trait Formatting {
def prompt: String
def spaces(code: String): String = {
/** Heuristic to avoid indenting and thereby corrupting """-strings and XML literals. */
val tokens = List("\"\"\"", "</", "/>")
val noIndent = (code contains "\n") && (tokens exists code.contains)
if (noIndent) ""
else prompt drop 1 map (_ => ' ')
}
/** Indent some code by the width of the scala> prompt.
* This way, compiler error messages read better.
*/
def indentCode(code: String) = {
val indent = spaces(code)
stringFromWriter(str =>
for (line <- code.lines) {
str print indent
str print (line + "\n")
str.flush()
}
)
}
}
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