photoprism/pkg/txt/strings.go
Michael Mayer a4e2867c86 Split import command into copy and move
Upgraded JS dependencies and did some refactoring along the way...

Signed-off-by: Michael Mayer <michael@liquidbytes.net>
2020-01-31 15:29:06 +01:00

72 lines
1.5 KiB
Go

package txt
import (
"regexp"
"strings"
"unicode"
)
var ContainsNumberRegexp = regexp.MustCompile("\\d+")
// ContainsNumber returns true if string contains a number.
func ContainsNumber(s string) bool {
return ContainsNumberRegexp.MatchString(s)
}
// isSeparator reports whether the rune could mark a word boundary.
func isSeparator(r rune) bool {
// ASCII alphanumerics and underscore are not separators
if r <= 0x7F {
switch {
case '0' <= r && r <= '9':
return false
case 'a' <= r && r <= 'z':
return false
case 'A' <= r && r <= 'Z':
return false
case r == '_', r == '\'':
return false
}
return true
}
// Letters and digits are not separators
if unicode.IsLetter(r) || unicode.IsDigit(r) {
return false
}
// Otherwise, all we can do for now is treat spaces as separators.
return unicode.IsSpace(r)
}
// UcFirst returns the string with the first character converted to uppercase.
func UcFirst(str string) string {
for i, v := range str {
return string(unicode.ToUpper(v)) + str[i+1:]
}
return ""
}
// Title returns the string with the first characters of each word converted to uppercase.
func Title(s string) string {
prev := ' '
return strings.Map(
func(r rune) rune {
if isSeparator(prev) {
prev = r
return unicode.ToTitle(r)
}
prev = r
return r
},
s)
}
// Bool casts a string to bool.
func Bool(s string) bool {
s = strings.TrimSpace(s)
if s == "" || s == "0" || s == "false" || s == "no" {
return false
}
return true
}