strutil

package
v0.4.0 Latest Latest
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 Go to latest Published: Oct 18, 2021 License: MIT Imports: 20 Imported by: 122

README

String Util

This is an go string operate util package.

Install

go get github.com/gookit/goutil/dump

Usage

ss := strutil.ToArray("a,b,c", ",")
// Output: []string{"a", "b", "c"}

ints, err := strutil.ToIntSlice("1,2,3")
// Output: []int{1, 2, 3}

Functions

func B64Encode(str string) string
func Bool(s string) (bool, error)
func Camel(s string, sep ...string) string
func CamelCase(s string, sep ...string) string
func FilterEmail(s string) string
func GenMd5(src interface{}) string
func LowerFirst(s string) string
func Lowercase(s string) string
func Md5(src interface{}) string
func MustBool(s string) bool
func MustString(in interface{}) string
func PadLeft(s, pad string, length int) string
func PadRight(s, pad string, length int) string
func Padding(s, pad string, length int, pos uint8) string
func PrettyJSON(v interface{}) (string, error)
func RandomBytes(length int) ([]byte, error)
func RandomString(length int) (string, error)
func RenderTemplate(input string, data interface{}, fns template.FuncMap, isFile ...bool) string
func Repeat(s string, times int) string
func RepeatRune(char rune, times int) (chars []rune)
func Replaces(str string, pairs map[string]string) string
func Similarity(s, t string, rate float32) (float32, bool)
func Snake(s string, sep ...string) string
func SnakeCase(s string, sep ...string) string
func Split(s, sep string) (ss []string)
func String(val interface{}) (string, error)
func Substr(s string, pos, length int) string
func ToArray(s string, sep ...string) []string
func ToBool(s string) (bool, error)
func ToIntSlice(s string, sep ...string) (ints []int, err error)
func ToInts(s string, sep ...string) ([]int, error)
func ToSlice(s string, sep ...string) []string
func ToString(val interface{}) (str string, err error)
func ToTime(s string, layouts ...string) (t time.Time, err error)
func Trim(s string, cutSet ...string) string
func TrimLeft(s string, cutSet ...string) string
func TrimRight(s string, cutSet ...string) string
func URLDecode(s string) string
func URLEncode(s string) string
func UpperFirst(s string) string
func UpperWord(s string) string
func Uppercase(s string) string

Documentation

Overview

Package strutil provide some string,char,byte util functions

Index

Constants

View Source 
const (
	AlphaBet  = "abcdefghijklmnopqrstuvwxyz"
	AlphaNum  = "abcdefghijklmnopqrstuvwxyz0123456789"
	AlphaNum2 = "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
)
View Source 
const (
	PosLeft uint8 = iota
	PosRight
)

Position for padding string

Variables

View Source 
var (
	Equal     = strings.EqualFold
	HasPrefix = strings.HasPrefix
	HasSuffix = strings.HasSuffix
)
View Source 
var (
	ErrConvertFail  = errors.New("convert data type is failure")
	ErrInvalidParam = errors.New("invalid input parameter")
)
View Source 
var (
	// EscapeJS escape javascript string
	EscapeJS = template.JSEscapeString
	// EscapeHTML escape html string
	EscapeHTML = template.HTMLEscapeString
)
View Source 
var (
	Lower = strings.ToLower
	Upper = strings.ToUpper
	Title = strings.ToTitle
)

Some alias methods.

View Source 
var (
	DefMinInt = 1000
	DefMaxInt = 9999
)

global id: 

https://github.com/rs/xid
https://github.com/satori/go.uuid
View Source 
var (
	Ltrim = TrimLeft
	Rtrim = TrimRight
)

Functions

func AnyToString added in v0.3.10 

func AnyToString(val interface{}, defaultAsErr bool) (str string, err error)

AnyToString convert value to string

func B64Encode added in v0.2.2 

func B64Encode(str string) string

B64Encode base64 encode

func Base64 added in v0.2.3 

func Base64(str string) string

Base64 base64 encode

func Bool added in v0.2.2 

func Bool(s string) (bool, error)

Bool parse string to bool

func Byte2str added in v0.3.14 

func Byte2str(b []byte) string

Byte2str convert bytes to string

func Byte2string added in v0.3.14 

func Byte2string(b []byte) string

Byte2string convert bytes to string

func BytePos added in v0.3.12 

func BytePos(s string, bt byte) int

BytePos alias of the strings.IndexByte

func Camel added in v0.2.2 

func Camel(s string, sep ...string) string

Camel alias of the CamelCase

func CamelCase added in v0.2.2 

func CamelCase(s string, sep ...string) string

CamelCase convert string to camel case. Support: 

"range_price" -> "rangePrice"
"range price" -> "rangePrice"
"range-price" -> "rangePrice"

func FilterEmail added in v0.2.2 

func FilterEmail(s string) string

FilterEmail filter email, clear invalid chars.

func GenMd5 

func GenMd5(src interface{}) string

GenMd5 Generate a 32-bit md5 string

func HasAllSubs added in v0.4.0 

func HasAllSubs(s string, subs []string) bool

HasAllSubs all substr in the given string.

func HasOnePrefix added in v0.4.0 

func HasOnePrefix(s string, subs []string) bool

HasOnePrefix the string start withs one of the subs

func HasOneSub added in v0.4.0 

func HasOneSub(s string, subs []string) bool

HasOneSub substr in the given string.

func Int added in v0.2.8 

func Int(s string) (int, error)

Int convert string to int

func Ints added in v0.3.13 

func Ints(s string, sep ...string) []int

Ints alias of the ToIntSlice()

func IsAlphaNum added in v0.3.11 

func IsAlphaNum(c uint8) bool

IsAlphaNum reports whether the byte is an ASCII letter, number, or underscore

func IsAlphabet added in v0.2.13 

func IsAlphabet(char uint8) bool

IsAlphabet char

func IsBlank added in v0.3.12 

func IsBlank(s string) bool

IsBlank returns true if the given string is all space characters.

func IsBlankBytes added in v0.3.12 

func IsBlankBytes(bs []byte) bool

IsBlankBytes returns true if the given []byte is all space characters.

func IsEndOf added in v0.3.12 

func IsEndOf(s, sub string) bool

IsEndOf alias of the strings.HasSuffix

func IsNumeric added in v0.3.12 

func IsNumeric(c byte) bool

IsNumeric returns true if the given character is a numeric, otherwise false.

func IsSpace added in v0.3.12 

func IsSpace(c byte) bool

IsSpace returns true if the given character is a space, otherwise false.

func IsSpaceRune added in v0.3.12 

func IsSpaceRune(r rune) bool

IsSpaceRune returns true if the given rune is a space, otherwise false.

func IsStartOf added in v0.3.12 

func IsStartOf(s, sub string) bool

IsStartOf alias of the strings.HasPrefix

func IsStartsOf added in v0.4.0 

func IsStartsOf(s string, subs []string) bool

IsStartsOf alias of the HasOnePrefix

func IsSymbol added in v0.3.12 

func IsSymbol(r rune) bool

IsSymbol reports whether the rune is a symbolic character.

func Len added in v0.3.12 

func Len(s string) int

Len of the string

func LowerFirst 

func LowerFirst(s string) string

LowerFirst lower first char

func Lowercase added in v0.2.2 

func Lowercase(s string) string

Lowercase alias of the strings.ToLower()

func Md5 added in v0.2.2 

func Md5(src interface{}) string

Md5 Generate a 32-bit md5 string

func MicroTimeHexID added in v0.3.6 

func MicroTimeHexID() string

MicroTimeHexID generate. return like: 5b5f0588af1761ad3(len: 16-17)

func MicroTimeID added in v0.3.6 

func MicroTimeID() string

MicroTimeID generate. return like: 16074145697981929446(len: 20)

func MustBool added in v0.2.2 

func MustBool(s string) bool

MustBool convert.

func MustInt added in v0.2.8 

func MustInt(s string) int

MustInt convert string to int

func MustString added in v0.2.2 

func MustString(in interface{}) string

MustString convert value to string

func PadLeft 

func PadLeft(s, pad string, length int) string

PadLeft a string.

func PadRight 

func PadRight(s, pad string, length int) string

PadRight a string.

func Padding 

func Padding(s, pad string, length int, pos uint8) string

Padding a string.

func PrettyJSON 

func PrettyJSON(v interface{}) (string, error)

PrettyJSON get pretty Json string Deprecated 

please use fmtutil.PrettyJSON() or jsonutil.Pretty() instead it

func RandomBytes 

func RandomBytes(length int) ([]byte, error)

RandomBytes generate

func RandomChars added in v0.3.6 

func RandomChars(ln int) string

RandomChars generate give length random chars at `a-z`

func RandomCharsV2 added in v0.3.6 

func RandomCharsV2(ln int) string

RandomCharsV2 generate give length random chars in `0-9a-z`

func RandomCharsV3 added in v0.3.6 

func RandomCharsV3(ln int) string

RandomCharsV3 generate give length random chars in `0-9a-zA-Z`

func RandomString 

func RandomString(length int) (string, error)

RandomString generate. Example: 

	// this will give us a 44 byte, base64 encoded output
	token, err := RandomString(32)
	if err != nil {
    // Serve an appropriately vague error to the
    // user, but log the details internally.
	}

func RenderTemplate 

func RenderTemplate(input string, data interface{}, fns template.FuncMap, isFile ...bool) string

RenderTemplate render text template

func RenderText added in v0.2.4 

func RenderText(input string, data interface{}, fns template.FuncMap, isFile ...bool) string

RenderText render text template

func Repeat 

func Repeat(s string, times int) string

Repeat repeat a string

func RepeatBytes added in v0.3.10 

func RepeatBytes(char byte, times int) (chars []byte)

RepeatBytes repeat a byte char.

func RepeatRune 

func RepeatRune(char rune, times int) (chars []rune)

RepeatRune repeat a rune char.

func Replaces 

func Replaces(str string, pairs map[string]string) string

Replaces replace multi strings 

pairs: {old1: new1, old2: new2, ...}

Can also use: 

strings.NewReplacer("old1", "new1", "old2", "new2").Replace(str)

func RunePos added in v0.3.12 

func RunePos(s string, ru rune) int

RunePos alias of the strings.IndexRune

func Similarity 

func Similarity(s, t string, rate float32) (float32, bool)

Similarity calc for two string. Usage: 

rate, ok := Similarity("hello", "he")

func Snake added in v0.2.2 

func Snake(s string, sep ...string) string

Snake alias of the SnakeCase

func SnakeCase added in v0.2.2 

func SnakeCase(s string, sep ...string) string

SnakeCase convert. eg "RangePrice" -> "range_price"

func Split 

func Split(s, sep string) (ss []string)

Split string to slice. will filter empty string node.

func SplitN added in v0.4.0 

func SplitN(s, sep string, n int) (ss []string)

SplitN string to slice. will filter empty string node.

func SplitNTrimmed added in v0.4.0 

func SplitNTrimmed(s, sep string, n int) (ss []string)

SplitNTrimmed split string to slice. will trim space for each node, but not filter empty

func SplitNValid added in v0.4.0 

func SplitNValid(s, sep string, n int) (ss []string)

SplitNValid string to slice. will filter empty string node.

func SplitTrimmed added in v0.4.0 

func SplitTrimmed(s, sep string) (ss []string)

SplitTrimmed split string to slice. will trim space for each node, but not filter empty

func SplitValid added in v0.4.0 

func SplitValid(s, sep string) (ss []string)

SplitValid string to slice. will filter empty string node.

func StrPos added in v0.3.12 

func StrPos(s, sub string) int

StrPos alias of the strings.Index

func String added in v0.2.2 

func String(val interface{}) (string, error)

String convert val to string

func Strings added in v0.3.13 

func Strings(s string, sep ...string) []string

Strings alias of the ToSlice()

func Substr 

func Substr(s string, pos, length int) string

Substr for a string.

func ToArray added in v0.2.2 

func ToArray(s string, sep ...string) []string

ToArray alias of the ToSlice()

func ToBool added in v0.2.2 

func ToBool(s string) (bool, error)

ToBool convert string to bool

func ToBytes added in v0.3.14 

func ToBytes(s string) (b []byte)

ToBytes convert string to bytes

func ToInt added in v0.2.8 

func ToInt(s string) (int, error)

ToInt convert string to int

func ToIntSlice added in v0.2.2 

func ToIntSlice(s string, sep ...string) (ints []int, err error)

ToIntSlice split string to slice and convert item to int.

func ToInts added in v0.2.2 

func ToInts(s string, sep ...string) ([]int, error)

ToInts alias of the ToIntSlice()

func ToSlice added in v0.2.2 

func ToSlice(s string, sep ...string) []string

ToSlice split string to array.

func ToString added in v0.2.2 

func ToString(val interface{}) (string, error)

ToString convert value to string

func ToStrings added in v0.3.13 

func ToStrings(s string, sep ...string) []string

ToStrings alias of the ToSlice()

func ToTime added in v0.2.2 

func ToTime(s string, layouts ...string) (t time.Time, err error)

ToTime convert date string to time.Time

func Trim added in v0.2.2 

func Trim(s string, cutSet ...string) string

Trim string

func TrimLeft added in v0.2.2 

func TrimLeft(s string, cutSet ...string) string

TrimLeft char in the string.

func TrimRight added in v0.2.2 

func TrimRight(s string, cutSet ...string) string

TrimRight char in the string.

func URLDecode added in v0.2.2 

func URLDecode(s string) string

URLDecode decode url string.

func URLEncode added in v0.2.2 

func URLEncode(s string) string

URLEncode encode url string.

func UpperFirst 

func UpperFirst(s string) string

UpperFirst upper first char

func UpperWord 

func UpperWord(s string) string

UpperWord Change the first character of each word to uppercase

func Uppercase added in v0.2.2 

func Uppercase(s string) string

Uppercase alias of the strings.ToUpper()

func Utf8len added in v0.3.12 

func Utf8len(s string) int

Utf8len of the string

func ValidUtf8String added in v0.3.12 

func ValidUtf8String(s string) bool

ValidUtf8String check

Types

type ByteChanPool added in v0.4.0 

type ByteChanPool struct {
	// contains filtered or unexported fields
}

ByteChanPool struct

Usage: 

bp := strutil.NewByteChanPool(500, 1024, 1024)
buf:=bp.Get()
defer bp.Put(buf)
// use buf do something ...

refer https://www.flysnow.org/2020/08/21/golang-chan-byte-pool.html from https://github.com/minio/minio/blob/master/internal/bpool/bpool.go

func NewByteChanPool added in v0.4.0 

func NewByteChanPool(maxSize int, width int, capWidth int) *ByteChanPool

func (*ByteChanPool) Get added in v0.4.0 

func (bp *ByteChanPool) Get() (b []byte)

Get gets a []byte from the BytePool, or creates a new one if none are available in the pool.

func (*ByteChanPool) Put added in v0.4.0 

func (bp *ByteChanPool) Put(b []byte)

Put returns the given Buffer to the BytePool.

func (*ByteChanPool) Width added in v0.4.0 

func (bp *ByteChanPool) Width() (n int)

Width returns the width of the byte arrays in this pool.

func (*ByteChanPool) WidthCap added in v0.4.0 

func (bp *ByteChanPool) WidthCap() (n int)

WidthCap returns the cap width of the byte arrays in this pool.

type SimilarComparator 

type SimilarComparator struct {
	// contains filtered or unexported fields
}

SimilarComparator definition links: 

https://github.com/mkideal/cli/blob/master/fuzzy.go

func NewComparator 

func NewComparator(src, dst string) *SimilarComparator

NewComparator create

func (*SimilarComparator) Similar 

func (c *SimilarComparator) Similar(minDifferRate float32) (float32, bool)

Similar by minDifferRate Usage: 

c := NewComparator("hello", "he")
rate, ok :c.Similar(0.3)

type Str added in v0.3.12 

type Str string

Str string

func (Str) Bytes added in v0.3.12 

func (s Str) Bytes() []byte

Bytes string to bytes

func (Str) IsEndBy added in v0.3.12 

func (s Str) IsEndBy(sub string) bool

IsEndBy suffix

func (Str) IsStartBy added in v0.3.12 

func (s Str) IsStartBy(sub string) bool

IsStartBy prefix

func (Str) String added in v0.3.12 

func (s Str) String() string

String string

Source Files

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