| 1 | // Package sessiontitle contains title transforms shared by conversation hosts. |
| 2 | package sessiontitle |
| 3 | |
| 4 | import ( |
| 5 | "math/big" |
| 6 | "regexp" |
| 7 | "strings" |
| 8 | ) |
| 9 | |
| 10 | var ( |
| 11 | asciiForkSuffix = regexp.MustCompile(`^(.*) \(([0-9]+)\)$`) |
| 12 | fullwidthForkSuffix = regexp.MustCompile(`^(.*)（([0-9]+)）$`) |
| 13 | ) |
| 14 | |
| 15 | // IncreaseFork returns the DeepSeek Harness-style title for an independent |
| 16 | // child conversation. Existing ASCII and fullwidth numeric suffixes are |
| 17 | // incremented without changing the source title's punctuation style. |
| 18 | func IncreaseFork(title string) string { |
| 19 | base := strings.TrimSpace(title) |
| 20 | if base == "" { |
| 21 | return "" |
| 22 | } |
| 23 | if next, ok := increaseSuffix(base, asciiForkSuffix, " (", ")"); ok { |
| 24 | return next |
| 25 | } |
| 26 | if next, ok := increaseSuffix(base, fullwidthForkSuffix, "（", "）"); ok { |
| 27 | return next |
| 28 | } |
| 29 | return base + " (1)" |
| 30 | } |
| 31 | |
| 32 | func increaseSuffix(title string, pattern *regexp.Regexp, open, close string) (string, bool) { |
| 33 | match := pattern.FindStringSubmatch(title) |
| 34 | if len(match) != 3 { |
| 35 | return "", false |
| 36 | } |
| 37 | n, ok := new(big.Int).SetString(match[2], 10) |
| 38 | if !ok { |
| 39 | return "", false |
| 40 | } |
| 41 | n.Add(n, big.NewInt(1)) |
| 42 | return match[1] + open + n.String() + close, true |
| 43 | } |
| 44 |