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51 lines
1.0 KiB
51 lines
1.0 KiB
package formattools
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import (
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"fmt"
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"sort"
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"strings"
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)
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func CompactIDList(ids []string) []string {
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sort.Strings(ids)
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currentGroup := ""
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currentIDs := make([]string, 0, len(ids))
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groups := make([]string, 0, 2)
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for _, id := range ids {
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if id == "" {
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continue
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}
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split := strings.SplitN(id, ":", 3)
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if len(split) < 3 {
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continue
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}
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group := id[:len(split[0])+len(split[1])+1]
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if group != currentGroup {
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if len(currentIDs) > 0 {
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if len(currentIDs) == 1 {
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groups = append(groups, fmt.Sprintf("%s:%s", currentGroup, currentIDs[0]))
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} else {
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groups = append(groups, fmt.Sprintf("%s:{%s}", currentGroup, strings.Join(currentIDs, ",")))
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}
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currentIDs = currentIDs[:0]
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}
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currentGroup = group
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}
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currentIDs = append(currentIDs, split[2])
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}
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if len(currentIDs) > 0 {
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if len(currentIDs) == 1 {
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groups = append(groups, fmt.Sprintf("%s:%s", currentGroup, currentIDs[0]))
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} else {
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groups = append(groups, fmt.Sprintf("%s:{%s}", currentGroup, strings.Join(currentIDs, ",")))
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}
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}
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return groups
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}
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