mirror of https://github.com/anoshenko/rui.git
77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
package rui
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import (
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"fmt"
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"strconv"
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"strings"
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)
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// Range defines range limits. The First and Last value are included in the range
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type Range struct {
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First, Last int
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}
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// String returns a string representation of the Range struct
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func (r Range) String() string {
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if r.First == r.Last {
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return fmt.Sprintf("%d", r.First)
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}
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return fmt.Sprintf("%d:%d", r.First, r.Last)
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}
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func (r *Range) setValue(value string) bool {
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var err error
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if strings.ContainsRune(value, ':') {
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values := strings.Split(value, ":")
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if len(values) != 2 {
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ErrorLog("Invalid range value: " + value)
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return false
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}
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if r.First, err = strconv.Atoi(strings.Trim(values[0], " \t\n\r")); err != nil {
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ErrorLog(`Invalid first range value "` + value + `" (` + err.Error() + ")")
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return false
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}
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if r.Last, err = strconv.Atoi(strings.Trim(values[1], " \t\n\r")); err != nil {
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ErrorLog(`Invalid last range value "` + value + `" (` + err.Error() + ")")
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return false
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}
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return true
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}
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if r.First, err = strconv.Atoi(value); err != nil {
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ErrorLog(`Invalid range value "` + value + `" (` + err.Error() + ")")
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return false
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}
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r.Last = r.First
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return true
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}
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func setRangeProperty(properties Properties, tag PropertyName, value any) []PropertyName {
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if result := setSimpleProperty(properties, tag, value); result != nil {
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return result
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}
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var r Range
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switch value := value.(type) {
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case string:
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if !r.setValue(value) {
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invalidPropertyValue(tag, value)
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return nil
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}
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case Range:
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r = value
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default:
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if n, ok := isInt(value); ok {
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r.First = n
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r.Last = n
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} else {
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notCompatibleType(tag, value)
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return nil
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}
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}
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return setPropertyValue(properties, tag, r)
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}
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