cloudflare/pint
Publicmirrored from https://github.com/cloudflare/pintAvailable
internal/output/ranges.go
45lines · modecode
| 1 | package output |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "slices" |
| 6 | "strconv" |
| 7 | "strings" |
| 8 | ) |
| 9 | |
| 10 | func FormatLineRangeString(lines []int) string { |
| 11 | ls := make([]int, len(lines)) |
| 12 | copy(ls, lines) |
| 13 | slices.Sort(ls) |
| 14 | |
| 15 | var ranges []string |
| 16 | start := -1 |
| 17 | end := -1 |
| 18 | for _, l := range ls { |
| 19 | switch { |
| 20 | case start < 0: |
| 21 | start = l |
| 22 | end = l |
| 23 | case l == end+1: |
| 24 | end = l |
| 25 | default: |
| 26 | if start > 0 && end > 0 { |
| 27 | ranges = append(ranges, printRange(start, end)) |
| 28 | } |
| 29 | start = l |
| 30 | end = l |
| 31 | } |
| 32 | } |
| 33 | if start > 0 && end > 0 { |
| 34 | ranges = append(ranges, printRange(start, end)) |
| 35 | } |
| 36 | |
| 37 | return strings.Join(ranges, " ") |
| 38 | } |
| 39 | |
| 40 | func printRange(start, end int) string { |
| 41 | if start == end { |
| 42 | return strconv.Itoa(start) |
| 43 | } |
| 44 | return fmt.Sprintf("%d-%d", start, end) |
| 45 | } |
| 46 | |