Method AdvanceRune

pkg/sql/tokenizer/position.go:88–104

AdvanceRune moves the position forward by one UTF-8 rune. This updates the byte index, line number, and column number appropriately. Newline Handling: When r is '\n', the line number increments and the column resets to 1. Parameters: - r: The rune being consumed (used to detect newlines) - size: T

(r rune, size int)

//	r, size := utf8.DecodeRune(input[pos.Index:])
//	pos.AdvanceRune(r, size)  // Move past this rune
func (p *Position) AdvanceRune(r rune, size int) {
	if size == 0 {
		size = 1 // fallback to single byte
	}

	// Move forward by the rune's size
	p.Index += size

	// Handle newlines
	if r == '\n' {
		p.Line++
		p.LastNL = p.Index
		p.Column = 1
	} else {
		p.Column++
	}
}

// AdvanceN moves the position forward by n bytes and recalculates the line
// and column numbers using the provided line start indices.