Function highlightSyntaxInLine

src/highlightSyntaxInLine.ts:33–59

(
    line: FormattedString,
    fileName: string,
    highlighter: shiki.Highlighter,
    theme: shiki.BundledTheme
)

}

export async function highlightSyntaxInLine(
    line: FormattedString,
    fileName: string,
    highlighter: shiki.Highlighter,
    theme: shiki.BundledTheme
): Promise<void> {
    const language = path.extname(fileName).slice(1) as shiki.BundledLanguage;
    if (!shiki.bundledLanguages[language]) {
        return;
    }

    await highlighter.loadLanguage(language);

    const { tokens } = highlighter.codeToTokens(line.getString(), {
        includeExplanation: false,
        lang: language,
        theme,
    });

    for (const token of tokens.flat()) {
        line.addSpan(
            token.offset,
            token.offset + token.content.length,
            parseShikiColor(token)
        );
    }
}