Struct Mermaid 

pub struct Mermaid {
    pub output_dir: Option<PathBuf>,
    /* private fields */
}

Render mermaid code blocks to inline SVG via the external mmdc CLI (@mermaid-js/mermaid-cli). On success the CodeBlock is replaced with <MermaidSvg svg="..." />. No-ops with Code::MmdcUnavailable when the CLI is missing; per-block failures emit Code::MermaidRenderFailed.

Fields

output_dir: Option<PathBuf>

Reserved for a future “write SVGs to disk + reference them” mode.

Implementations

impl Mermaid

pub fn with_output(p: impl Into<PathBuf>) -> Self

pub fn render_cached(&self, source: &str) -> Result<String, String>

Trait Implementations

impl Default for Mermaid

fn default() -> Mermaid

Returns the “default value” for a type.

impl Transformer for Mermaid

fn name(&self) -> &str

Stable identifier for logging / error reporting.

fn transform( &self, doc: &mut Document, _meta: &SourceMeta, diag_engine: &mut DiagnosticEngine<Code>, )

Mutate doc in place. May be a no-op when preconditions (config, environment, feature flags) aren’t met.