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Render math in RSS with MathML #584

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Render math in RSS with MathML #584

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33 changes: 24 additions & 9 deletions build.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -283,9 +283,9 @@ object LaikaCustomizations {
SpanDirectives.create("math") {
import SpanDirectives.dsl.*
rawBody.map { body =>
RawContent(
NonEmptySet.of("html", "rss"),
KaTeX(body, false)
SpanSequence(
RawContent(NonEmptySet.of("html"), KaTeX(body, false)),
RawContent(NonEmptySet.of("rss"), KaTeX(body, false, "mathml"))
)
}
}
Expand All @@ -294,10 +294,13 @@ object LaikaCustomizations {
BlockDirectives.create("math") {
import BlockDirectives.dsl.*
rawBody.map { body =>
RawContent(
NonEmptySet.of("html", "rss"),
KaTeX(body, true),
Styles("bulma-has-text-centered")
BlockSequence(
RawContent(
NonEmptySet.of("html"),
KaTeX(body, true),
Styles("bulma-has-text-centered")
),
RawContent(NonEmptySet.of("rss"), KaTeX(body, true, "mathml"))
)
}
},
Expand Down Expand Up @@ -342,6 +345,13 @@ object LaikaCustomizations {
val defaultRenderer = {
case (fmt, Title(_, _)) =>
"" // don't render title b/c it is in the RSS metadata
case (fmt, RawContent(formats, content, options)) =>
if (formats.contains("rss")) // only render content designated for RSS
HTML.defaultRenderer(
fmt,
RawContent(NonEmptySet.of("html"), content, options)
)
else ""
case (fmt, elem) => HTML.defaultRenderer(fmt, elem)
}

Expand Down Expand Up @@ -436,12 +446,17 @@ object KaTeX {
ctx.getBindings("js").getMember("katex")
}

def apply(latex: String, displayMode: Boolean = false): String =
def apply(
latex: String,
displayMode: Boolean = false,
output: String = "htmlAndMathml"
): String =
synchronized {
val options = Map(
"throwOnError" -> true,
"strict" -> true,
"displayMode" -> displayMode
"displayMode" -> displayMode,
"output" -> output
)
katex.invokeMember("renderToString", latex, options.asJava).asString
}
Expand Down