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package book
import acyclic.file
import scala.collection.mutable
import scalatags.Text.all._
object sect{
var indent = 0
val headers = Seq[((String, String) => scalatags.Text.Tag, Option[Frag => Frag])](
((h, s) => div(cls:="header")(
h1(h),
h2(s)
), Some(f => div(cls:="content", f))),
((h, s) => div(cls:="header")(
h1(id:=munge(h), h),
br
), None),
(h1(_, _), None),
(h2(_, _), None),
(h3(_, _), None),
(h4(_, _), None),
(h5(_, _), None),
(h6(_, _), None)
)
var structure = Node("root", mutable.Buffer.empty)
def munge(name: String) = {
name.replace(" ", "")
}
}
case class sect(name: String, subname: String = ""){
sect.indent += 1
val newNode = Node(name, mutable.Buffer.empty)
val (headerWrap, contentWrap) = sect.headers(sect.indent-1)
sect.structure.children.append(newNode)
val prev = sect.structure
sect.structure = newNode
def apply(args: Frag*) = {
val wrappedContents = contentWrap.getOrElse((x: Frag) => x)(args)
val res = Seq[Frag](
if (name == "") ""
else headerWrap(name, subname)(cls:="content-subhead", id:=sect.munge(name)),
wrappedContents
)
sect.indent -= 1
sect.structure = prev
res
}
}
case class Node(name: String, children: mutable.Buffer[Node])
object hl{
def highlight(snippet: Seq[String], lang: String) = {
val string = snippet.mkString
val lines = string.split("\n", -1)
if (lines.length == 1){
code(cls:=lang + " highlight-me", lines(0), padding:=0, display:="inline")
}else{
val minIndent = lines.map(_.takeWhile(_ == ' ').length)
.filter(_ > 0)
.min
val stripped = lines.map(_.drop(minIndent))
.dropWhile(_ == "")
.mkString("\n")
pre(code(cls:=lang + " highlight-me", stripped))
}
}
def javascript(code: String*) = highlight(code, "javascript")
def scala(code: String*) = highlight(code, "scala")
def bash(code: String*) = highlight(code, "bash")
def diff(code: String*) = highlight(code, "diff")
def html(code: String*) = highlight(code, "xml")
def ref(filepath: String, start: String = "", end: String = "\n") = {
val lang = filepath.split('.').last match {
case "js" => "javascript"
case "scala" => "scala"
case "sbt" => "scala"
case "sh" => "bash"
case "html" => "xml"
case x =>
println("??? " + x)
???
}
val lines = io.Source.fromFile(filepath).getLines().toVector
def indent(line: String) = line.takeWhile(_.isWhitespace).length
val startLine = lines.indexWhere(_.contains(start))
if (startLine == -1){
throw new Exception("Can't find marker: " + start)
}
val whitespace = indent(lines(startLine))
val endLine = lines.indexWhere(
line => line.contains(end) || (indent(line) < whitespace && line.trim != ""),
startLine
)
val sliced =
if (endLine == -1) lines.drop(startLine)
else lines.slice(startLine, endLine)
val blob = sliced.map(_.drop(whitespace)).mkString("\n")
pre(code(cls:=lang + " highlight-me", blob))
}
}
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