Method Next

pkg/gitdiff/parser.go:95–120

Next advances the parser by one line. It returns any error encountered while reading the line, including io.EOF when the end of stream is reached.

()

// Next advances the parser by one line. It returns any error encountered while
// reading the line, including io.EOF when the end of stream is reached.
func (p *parser) Next() error {
	if p.eof {
		return io.EOF
	}

	if p.lineno == 0 {
		// on first call to next, need to shift in all lines
		for i := 0; i < len(p.lines)-1; i++ {
			if err := p.shiftLines(); err != nil && err != io.EOF {
				return err
			}
		}
	}

	err := p.shiftLines()
	if err != nil && err != io.EOF {
		return err
	}

	p.lineno++
	if p.lines[0] == "" {
		p.eof = true
		return io.EOF
	}
	return nil
}

func (p *parser) shiftLines() (err error) {
	for i := 0; i < len(p.lines)-1; i++ {