github.com/unionj-cloud/go-doudou/v2@v2.3.5/toolkit/stringutils/stringutils.go (about)

     1  package stringutils
     2  
     3  import (
     4  	"regexp"
     5  	"strings"
     6  	"unicode"
     7  )
     8  
     9  // IsEmpty asserts s is empty
    10  func IsEmpty(s string) bool {
    11  	return strings.TrimSpace(s) == ""
    12  }
    13  
    14  // IsNotEmpty asserts s is not empty
    15  func IsNotEmpty(s string) bool {
    16  	return !IsEmpty(s)
    17  }
    18  
    19  // ContainsI assert s contains substr ignore case
    20  func ContainsI(s string, substr string) bool {
    21  	re := regexp.MustCompile(`(?i)` + substr)
    22  	return re.MatchString(s)
    23  }
    24  
    25  // HasPrefixI assert s has prefix prefix ignore case
    26  func HasPrefixI(s, prefix string) bool {
    27  	re := regexp.MustCompile(`(?i)^` + prefix)
    28  	return re.MatchString(s)
    29  }
    30  
    31  func ToTitle(s string) string {
    32  	str := []rune(s)
    33  	return strings.ToUpper(string(str[0])) + string(str[1:])
    34  }
    35  
    36  var symbolre = regexp.MustCompile("[。？！，、；：“”‘’（）《》【】~!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~\\s]")
    37  
    38  func ToCamel(s string) string {
    39  	parts := symbolre.Split(s, -1)
    40  	var convertedParts []string
    41  	for _, v := range parts {
    42  		if IsNotEmpty(v) {
    43  			convertedParts = append(convertedParts, ToTitle(v))
    44  		}
    45  	}
    46  	ret := strings.Join(convertedParts, "")
    47  	if !unicode.IsUpper(rune(ret[0])) {
    48  		ret = "A" + ret
    49  	}
    50  	return ret
    51  }