chore: seperate large files

internal/format/ass/utils.go

@@ -0,0 +1,98 @@
+package ass
+
+import (
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"sub-cli/internal/model"
+)
+
+// parseFormatLine 解析格式行中的各个字段
+func parseFormatLine(formatStr string) []string {
+	fields := strings.Split(formatStr, ",")
+	result := make([]string, 0, len(fields))
+	
+	for _, field := range fields {
+		result = append(result, strings.TrimSpace(field))
+	}
+	
+	return result
+}
+
+// parseStyleLine 解析样式行
+func parseStyleLine(line string) []string {
+	// 去掉"Style:"前缀
+	styleStr := strings.TrimPrefix(line, "Style:")
+	return splitCSV(styleStr)
+}
+
+// parseEventLine 解析事件行
+func parseEventLine(line string) []string {
+	return splitCSV(line)
+}
+
+// splitCSV 拆分CSV格式的字符串，但保留Text字段中的逗号
+func splitCSV(line string) []string {
+	var result []string
+	inText := false
+	current := ""
+	
+	for _, char := range line {
+		if char == ',' && !inText {
+			result = append(result, strings.TrimSpace(current))
+			current = ""
+		} else {
+			current += string(char)
+			// 这是个简化处理，实际ASS格式更复杂
+			// 当处理到足够数量的字段后，剩余部分都当作Text字段
+			if len(result) >= 9 {
+				inText = true
+			}
+		}
+	}
+	
+	if current != "" {
+		result = append(result, strings.TrimSpace(current))
+	}
+	
+	return result
+}
+
+// parseASSTimestamp 解析ASS格式的时间戳 (h:mm:ss.cc)
+func parseASSTimestamp(timeStr string) model.Timestamp {
+	// 匹配 h:mm:ss.cc 格式
+	re := regexp.MustCompile(`(\d+):(\d+):(\d+)\.(\d+)`)
+	matches := re.FindStringSubmatch(timeStr)
+	
+	if len(matches) == 5 {
+		hours, _ := strconv.Atoi(matches[1])
+		minutes, _ := strconv.Atoi(matches[2])
+		seconds, _ := strconv.Atoi(matches[3])
+		// ASS使用厘秒（1/100秒），需要转换为毫秒
+		centiseconds, _ := strconv.Atoi(matches[4])
+		milliseconds := centiseconds * 10
+		
+		return model.Timestamp{
+			Hours:        hours,
+			Minutes:      minutes,
+			Seconds:      seconds,
+			Milliseconds: milliseconds,
+		}
+	}
+	
+	// 返回零时间戳，如果解析失败
+	return model.Timestamp{}
+}
+
+// formatASSTimestamp 格式化为ASS格式的时间戳 (h:mm:ss.cc)
+func formatASSTimestamp(timestamp model.Timestamp) string {
+	// ASS使用厘秒（1/100秒）
+	centiseconds := timestamp.Milliseconds / 10
+	return fmt.Sprintf("%d:%02d:%02d.%02d", 
+		timestamp.Hours, 
+		timestamp.Minutes, 
+		timestamp.Seconds,
+		centiseconds)
+}