photoprism/pkg/fs/ext.go

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package fs
import (
"strings"
)
const (
YamlExt = ".yml"
JpegExt = ".jpg"
AvcExt = ".avc"
FujiRawExt = ".raf"
CanonCr3Ext = ".cr3"
)
// FileExtensions maps file extensions to standard formats
type FileExtensions map[string]FileFormat
// TypeExtensions maps standard formats to file extensions.
type TypeExtensions map[FileFormat][]string
// NormalizeExt returns the file extension without dot and in lowercase.
func NormalizeExt(fileName string) string {
if dot := strings.LastIndex(fileName, "."); dot != -1 && len(fileName[dot+1:]) >= 1 {
return strings.ToLower(fileName[dot+1:])
}
return ""
}
// TrimExt removes unwanted characters from file extension strings, and makes it lowercase for comparison.
func TrimExt(ext string) string {
return strings.ToLower(strings.Trim(ext, " .,;:“”'`\""))
}