compose-highlight/dev.hossain.highlight.engine/HighlightEngine/highlightToHtml

highlightToHtml

suspend fun highlightToHtml(code: String, language: String): Result<HtmlHighlightResult>

Highlights code and returns raw HTML with <span class="hljs-*"> tokens, together with the time taken for the JavaScript round-trip.

Lower-level alternative to highlight: use this when you need the raw HTML string rather than a theme-applied AnnotatedString. Automatically initializes the WebView on the first call. Thread-safe: may be called from any dispatcher.

engine.highlightToHtml("val x = 42", "kotlin").onSuccess { result ->
    // result.html contains e.g. <span class="hljs-keyword">val</span> x = ...
    renderRawHtml(result.html)
    log("JS round-trip: ${result.durationMs} ms")
}

Return

Result wrapping an HtmlHighlightResult (html + timing), or Result.failure with a HighlightException on error. Returns HighlightException.Timeout if the JavaScript call does not complete within the timeout window.

Parameters

code

The source code to highlight.

language

Highlight.js language identifier (e.g. "kotlin", "python").