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photoprism
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develop
pkg/clean/fieldname.go
35 строк
835 B
Michael Mayer
Settings: Use PHOTOPRISM_DISABLE_FEATURES to initialize default features
21 ноя 2025, 17:19
21 ноя 2025, 17:19
9d86b2a
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package clean import ( "strings" ) // FieldName normalizes a struct field identifier so it can be compared safely. // It strips all characters outside [A-Za-z0-9], rejects empty strings, and // returns an empty string for inputs longer than 255 bytes to avoid abuse. func FieldName(s string) string { if s == "" || len(s) > 255 { return "" } // Remove all invalid characters. s = strings.Map(func(r rune) rune { if (r < '0' || r > '9') && (r < 'a' || r > 'z') && (r < 'A' || r > 'Z') { return -1 } return r }, s) return s } // FieldNameLower normalizes a struct field identifier and lowercases it first. // Useful when callers want case-insensitive comparisons against normalized data. func FieldNameLower(s string) string { if s == "" || len(s) > 255 { return "" } return FieldName(strings.ToLower(s)) }