Struct IncrementalRenderer

pkg/tui/components/markdown/incremental.go:24–40

IncrementalRenderer is a markdown renderer specialized for streaming use: it remembers the most recently rendered "stable prefix" of the input and, when the next call extends that prefix, re-renders only the new trailing region instead of the whole document. A "stable prefix" here is the portion of

//
// IncrementalRenderer is not safe for concurrent use.
type IncrementalRenderer struct {
	width int

	// inputPrefix is the longest stable prefix of the most recent input that
	// ends at a block boundary. outputPrefix is its rendered counterpart.
	// Both are empty until the first successful incremental render.
	inputPrefix  string
	outputPrefix string

	// codeBlocksPrefix is the list of code blocks emitted while rendering the
	// cached prefix, with Line indices relative to outputPrefix.
	codeBlocksPrefix []CodeBlock

	// fallback is used for the actual rendering work; it is reused across calls
	// so its parser pool (and chroma caches) stay warm.
	fallback *FastRenderer
}

// NewIncrementalRenderer creates a new incremental renderer with the given
// terminal width.