| 37 | } |
| 38 | |
| 39 | func (p *parser) ParseTextFragmentHeader() (*TextFragment, error) { |
| 40 | const ( |
| 41 | startMark = "@@ -" |
| 42 | endMark = " @@" |
| 43 | ) |
| 44 | |
| 45 | if !strings.HasPrefix(p.Line(0), startMark) { |
| 46 | return nil, nil |
| 47 | } |
| 48 | |
| 49 | parts := strings.SplitAfterN(p.Line(0), endMark, 2) |
| 50 | if len(parts) < 2 { |
| 51 | return nil, p.Errorf(0, "invalid fragment header") |
| 52 | } |
| 53 | |
| 54 | f := &TextFragment{} |
| 55 | f.Comment = strings.TrimSpace(parts[1]) |
| 56 | |
| 57 | header := parts[0][len(startMark) : len(parts[0])-len(endMark)] |
| 58 | ranges := strings.Split(header, " +") |
| 59 | if len(ranges) != 2 { |
| 60 | return nil, p.Errorf(0, "invalid fragment header") |
| 61 | } |
| 62 | |
| 63 | var err error |
| 64 | if f.OldPosition, f.OldLines, err = parseRange(ranges[0]); err != nil { |
| 65 | return nil, p.Errorf(0, "invalid fragment header: %v", err) |
| 66 | } |
| 67 | if f.NewPosition, f.NewLines, err = parseRange(ranges[1]); err != nil { |
| 68 | return nil, p.Errorf(0, "invalid fragment header: %v", err) |
| 69 | } |
| 70 | |
| 71 | if err := p.Next(); err != nil && err != io.EOF { |
| 72 | return nil, err |
| 73 | } |
| 74 | return f, nil |
| 75 | } |
| 76 | |
| 77 | func (p *parser) ParseTextChunk(frag *TextFragment) error { |
| 78 | if p.Line(0) == "" { |