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/*
* sbt-boilerplate is distributed under the 2-Clause BSD license. See the LICENSE file in the root
* of the repository.
*
* Copyright (c) 2012 Johannes Rudolph
*/
package spray.boilerplate
import util.parsing.combinator.RegexParsers
object Generator {
def generateFromTemplate(template: String, expandTo: Int): String =
generate(TemplateParser.parse(template))(expandTo)
def generate(format: TemplateElement)(idx: Int): String = format match {
case Sequence(els @ _*) ⇒ els.map(e ⇒ generate(e)(idx)).mkString
case Expand(inner, sep) ⇒ (1 to idx).map(generate(inner)).mkString(sep)
case Offset(i) ⇒ (idx + i - 1).toString
case LiteralString(lit) ⇒ lit
}
}
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