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55 lines
1.4 KiB
55 lines
1.4 KiB
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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package gstr
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import (
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"strings"
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"github.com/gogf/gf/v2/internal/utils"
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)
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// ToLower returns a copy of the string s with all Unicode letters mapped to their lower case.
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func ToLower(s string) string {
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return strings.ToLower(s)
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}
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// ToUpper returns a copy of the string s with all Unicode letters mapped to their upper case.
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func ToUpper(s string) string {
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return strings.ToUpper(s)
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}
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// UcFirst returns a copy of the string s with the first letter mapped to its upper case.
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func UcFirst(s string) string {
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return utils.UcFirst(s)
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}
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// LcFirst returns a copy of the string s with the first letter mapped to its lower case.
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func LcFirst(s string) string {
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if len(s) == 0 {
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return s
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}
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if IsLetterUpper(s[0]) {
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return string(s[0]+32) + s[1:]
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}
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return s
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}
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// UcWords uppercase the first character of each word in a string.
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func UcWords(str string) string {
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return strings.Title(str)
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}
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// IsLetterLower tests whether the given byte b is in lower case.
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func IsLetterLower(b byte) bool {
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return utils.IsLetterLower(b)
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}
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// IsLetterUpper tests whether the given byte b is in upper case.
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func IsLetterUpper(b byte) bool {
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return utils.IsLetterUpper(b)
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}
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