74 lines
1.1 KiB
Go
74 lines
1.1 KiB
Go
package fs
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import (
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"regexp"
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"github.com/photoprism/photoprism/pkg/rnd"
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)
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var DscNameRegexp = regexp.MustCompile("\\D{3}[\\d_]\\d{4}(.JPG)?")
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// IsInt tests if the file base is an integer number.
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func IsInt(s string) bool {
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if s == "" {
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return false
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}
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for _, r := range s {
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if r < 48 || r > 57 {
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return false
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}
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}
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return true
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}
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// IsAsciiID tests if the string is a file name that only contains uppercase ascii letters and numbers like "IQVG4929".
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func IsAsciiID(s string) bool {
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if s == "" {
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return false
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}
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for _, r := range s {
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if (r < 65 || r > 90) && (r < 48 || r > 57) {
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return false
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}
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}
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return true
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}
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// IsID tests if the file name looks like an automatically created identifier.
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func IsID(fileName string) bool {
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if fileName == "" {
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return false
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}
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base := Base(fileName, false)
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if IsHash(base) {
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return true
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}
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if IsInt(base) {
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return true
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}
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if dsc := DscNameRegexp.FindString(base); dsc == base {
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return true
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}
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if rnd.IsUID(base, 0) {
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return true
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}
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if IsCanonical(base) {
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return true
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}
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if IsAsciiID(base) {
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return true
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}
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return false
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}
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