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v0.0.50 Latest Latest Go to latest Published: May 29, 2024 License: Apache-2.0 Imports: 37 Imported by: 14

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/ddkwork/golibrary

Links

Open Source Insights

Documentation ¶

Rendered for

Index ¶

Constants
Variables
func AlignString(s string, length int) (ss string)
func Atoi(s string) int
func BaseName(path string) string
func Concat[S ~[]E, E any](slices_ ...S) S
func ConvertUtf82Gbk(src string) (ss string)
func CopyDir(dst, src string) error
func CopyFile(path, dstPath string)
func CreatDirectory(dir string) bool
func CurrentDirName(path string) (currentDirName string)
func CutUint16(u uint16) uint8
func CutUint16_(u uint16) uint8
func DirDepth(dirPath string) (depth int)
func FileServer()
func FileServerFS(fs embed.FS)
func FixUncPath(path string) string
func Float64Cut(value float64, bits int) (float64, error)
func Float64ToString(f float64, prec int) string
func FormatDuration(d time.Duration) string
func FormatTime(t time.Time) string
func Gbk2Utf8(gbk string) (utf8 string)
func GenA2Z() (letters []string)
func GetDiffDays(dstTime string) string
func GetLocalIPs() []net.IP
func GetPackageName() (pkgName string)
func GetTimeNowString() string
func GetTimeStamp() string
func GetTimeStamp13Bits() int64
func GetUserConfigDirs() (UserConfigDirs map[string]string)
func GetWindowsLogicalDrives() []string
func GitProxy(isSetProxy bool)
func GoReleaser()
func HomeDir() string
func IntegerToIP(ip int64) string
func IsAix() bool
func IsAndroid() bool
func IsDarwin() bool
func IsDir(path string) bool
func IsDirEx(path string) (ok bool)
func IsDirRoot(path string) bool
func IsDragonfly() bool
func IsFilePath(path string) bool
func IsFilePathEx(path string) (ok bool)
func IsFreebsd() bool
func IsHurd() bool
func IsIllumos() bool
func IsIos() bool
func IsJs() bool
func IsLinux() bool
func IsNacl() bool
func IsNetbsd() bool
func IsOpenbsd() bool
func IsPlan9() bool
func IsSolaris() bool
func IsTermux() bool
func IsWasip1() bool
func IsWindows() bool
func IsZero(v reflect.Value) bool
func IsZos() bool
func JoinHomeDir(path string) (join string)
func JoinHomeFile(path string) (join string)
func JsonIndent(b []byte) string
func Lines(x []byte) []string
func MakeCommandArg(arg ...string) string
func MarshalJSON(v any) []byte
func MarshalJsonToFile(v any, name string)
func MoveFile(src, dst string)
func NewVersion[T string | uint64](s ...T) (v *object)
func ParseFloat(sizeStr string) (size float64)
func ParseInt(s string) int64
func ParseUint(s string) uint64
func RandomAny[T any](slice []T) T
func ReadEmbedFileMap(embedFiles embed.FS, dir string) *maps.SafeMap[string, []byte]
func ReadFileToLines(path string) (lines []string)
func ReadLines(fullPath string) ([]string, error)
func ReflectVisibleFields(object any) []reflect.StructField
func RegexpWebBodyBlocks(tagName string) string
func RunDir() string
func SerialNumber(b string) string
func SetNameAndEmail(s *Buffer)
func SetProxy(s *Buffer, isSetProxy bool)
func SetSafecrlf(s *Buffer)
func SlicesIndex(slice any, item any) int
func SlicesInsert(slice any, index int, value any) any
func SplitFileByLines(filePath string, size int)
func SubStrRunes(s string, length int) string
func SwapBytes(src []byte) (dst []byte)
func SwapBytes2HexString2(src HexString) (dst string)
func ToCamel(data string, isCommit bool) string
func ToCamelToLower(s string, isCommit bool) string
func ToCamelUpper(s string, isCommit bool) string
func ToLines[T string | []byte | *os.File | *bytes.Buffer](data T) (lines []string)
func TrimExtension(path string) string
func UnFormatDuration(s string) time.Duration
func UnFormatTime(s string) time.Time
func Unquote(line string) string
func UpdateModsByWorkSpace(isTidy, isUpdateAll bool, modWithCommitID ...string)
func Utf82Gbk(utf8 string) (gbk string)
func WriteAppend[T Type](name string, data T)
func WriteBinaryFile[T Type](name string, data T)
func WriteGoFile[T Type](name string, data T)
func WriteLines(lines []string, fullPath string) error
func WriteTruncate[T Type](name string, data T)
type AppKind
- func ConvertInteger2AppKind[T constraints.Integer](v T) AppKind
- func (k AppKind) AssertKind(kinds string) AppKind
- func (k AppKind) Keys() []string
- func (k AppKind) Kinds() []AppKind
- func (k AppKind) String() string
- func (k AppKind) SvgFileName() string
type Buffer
- func NewBuffer[T Type](s T) *Buffer
- func NewHexDump(hexdumpStr HexDumpString) (data *Buffer)
- func NewHexString(s HexString) *Buffer
- func ReaderGzip[T Type](data T) *Buffer
- func (b *Buffer) AppendByteSlice(bytesSlice ...[]byte) []byte
- func (b *Buffer) BigNumXorWithAlign(arg1, arg2 []byte, align int) (xorStream []byte)
- func (b *Buffer) CheckDesBlockSize()
- func (b *Buffer) Contains(substr string) bool
- func (b *Buffer) CutString(left, right string) (cut string, found bool)
- func (b *Buffer) CutWithIndex(x, y int) []byte
- func (b *Buffer) HexString() HexString
- func (b *Buffer) HexStringUpper() HexString
- func (b *Buffer) Indent(deep int)
- func (b *Buffer) InsertByte(index int, ch byte)
- func (b *Buffer) InsertBytes(index int, insert []byte) []byte
- func (b *Buffer) InsertRune(index int, r rune)
- func (b *Buffer) InsertString(index int, s string) string
- func (b *Buffer) InsertStringWithSplit(size int, insert string) string
- func (b *Buffer) LinesToString(lines []string) string
- func (b *Buffer) MergeByte(streams ...[]byte) []byte
- func (b *Buffer) NewLine() *Buffer
- func (b *Buffer) ObjectBegin()
- func (b *Buffer) ObjectEnd()
- func (b *Buffer) Quote()
- func (b *Buffer) QuoteWith(s string) *Buffer
- func (b *Buffer) ReadBinary(order binary.ByteOrder) (data any)
- func (b *Buffer) ReaderGzip() *Buffer
- func (b *Buffer) ReplaceAll(old, new string) *Buffer
- func (b *Buffer) SliceBegin()
- func (b *Buffer) SliceEnd()
- func (b *Buffer) SplitBytes(size int) (blocks [][]byte)
- func (b *Buffer) SplitString(size int) (blocks []string)
- func (b *Buffer) ToLines() (lines []string)
- func (b *Buffer) WriteBinary(order binary.ByteOrder, data any)
- func (b *Buffer) WriteBytesLn(buf []byte) *Buffer
- func (b *Buffer) WritePackageName()
- func (b *Buffer) WriteStringLn(s string) *Buffer
type CommandSession
- func NewCommandSession() *CommandSession
- func RunCommand(command string) *CommandSession
- func RunCommandArgs(arg ...string) *CommandSession
- func (s *CommandSession) GetPid() <-chan int
- func (s *CommandSession) SetDir(dir string)
- func (s *CommandSession) SetLog(wr io.Writer)
type GeneratedFile
- func (g *GeneratedFile) Buffer() *bytes.Buffer
- func (g *GeneratedFile) Enum(kindName string, kinds, tooltip []string)
- func (g *GeneratedFile) P(v ...any)
- func (g *GeneratedFile) ReadTemplates(path string)
type HexDumpString
type HexString
- func SwapBytes2HexString(src []byte) (dst HexString)
type Interface
- func NewGen() Interface
type Pool
- func NewPool[T any](fn func() T) *Pool[T]
- func (p *Pool[T]) Get() T
- func (p *Pool[T]) Put(v T)
type Type

Constants ¶

View Source

const TimeLayout = "2006-01-02 15:04:05"

Variables ¶

View Source

var (
	RegexpIp     = regexp.MustCompile(`((25[0-5]|2[0-4]\d|((1\d{2})|([1-9]?\d)))\.){3}(25[0-5]|2[0-4]\d|((1\d{2})|([1-9]?\d)))`) // todo panic
	RegexpIpPort = regexp.MustCompile(`((25[0-5]|2[0-4]\d|((1\d{2})|([1-9]?\d)))\.){3}(25[0-5]|2[0-4]\d|((1\d{2})|([1-9]?\d))):([0-9]+)`)
)

View Source

var DefaultFileServerPort = ":8080"

View Source

var RegexpCenter = `(.+?)`

Functions ¶

func AlignString ¶

func AlignString(s string, length int) (ss string)

func Atoi ¶

func Atoi(s string) int

func BaseName ¶

func BaseName(path string) string

func Concat ¶

func Concat[S ~[]E, E any](slices_ ...S) S

func ConvertUtf82Gbk ¶

func ConvertUtf82Gbk(src string) (ss string)

func CopyDir ¶

func CopyDir(dst, src string) error

func CopyFile ¶ added in v0.0.50

func CopyFile(path, dstPath string)

func CreatDirectory ¶

func CreatDirectory(dir string) bool

func CurrentDirName ¶

func CurrentDirName(path string) (currentDirName string)

func CutUint16 ¶

func CutUint16(u uint16) uint8

func CutUint16_ ¶

func CutUint16_(u uint16) uint8

func DirDepth ¶ added in v0.0.6

func DirDepth(dirPath string) (depth int)

func FileServer ¶ added in v0.0.17

func FileServer()

func FileServerFS ¶ added in v0.0.17

func FileServerFS(fs embed.FS)

func FixUncPath ¶

func FixUncPath(path string) string

func Float64Cut ¶

func Float64Cut(value float64, bits int) (float64, error)

func Float64ToString ¶

func Float64ToString(f float64, prec int) string

func FormatDuration ¶

func FormatDuration(d time.Duration) string

func FormatTime ¶

func FormatTime(t time.Time) string

func Gbk2Utf8 ¶

func Gbk2Utf8(gbk string) (utf8 string)

func GenA2Z ¶ added in v0.0.17

func GenA2Z() (letters []string)

func GetDiffDays ¶

func GetDiffDays(dstTime string) string

func GetLocalIPs ¶ added in v0.0.17

func GetLocalIPs() []net.IP

func GetPackageName ¶

func GetPackageName() (pkgName string)

func GetTimeNowString ¶

func GetTimeNowString() string

func GetTimeStamp ¶

func GetTimeStamp() string

func GetTimeStamp13Bits ¶

func GetTimeStamp13Bits() int64

func GetUserConfigDirs ¶

func GetUserConfigDirs() (UserConfigDirs map[string]string)

func GetWindowsLogicalDrives ¶ added in v0.0.17

func GetWindowsLogicalDrives() []string

func GitProxy ¶

func GitProxy(isSetProxy bool)

func GoReleaser ¶ added in v0.0.9

func GoReleaser()

func HomeDir ¶

func HomeDir() string

func IntegerToIP ¶

func IntegerToIP(ip int64) string

func IsAix ¶

func IsAix() bool

func IsAndroid ¶

func IsAndroid() bool

func IsDarwin ¶

func IsDarwin() bool

func IsDir ¶

func IsDir(path string) bool

func IsDirEx ¶ added in v0.0.50

func IsDirEx(path string) (ok bool)

func IsDirRoot ¶ added in v0.0.6

func IsDirRoot(path string) bool

IsDirRoot 是否是一级目录，包含目录分隔符的深度一定大于1

func IsDragonfly ¶

func IsDragonfly() bool

func IsFilePath ¶

func IsFilePath(path string) bool

func IsFilePathEx ¶ added in v0.0.23

func IsFilePathEx(path string) (ok bool)

func IsFreebsd ¶

func IsFreebsd() bool

func IsHurd ¶

func IsHurd() bool

func IsIllumos ¶

func IsIllumos() bool

func IsIos ¶

func IsIos() bool

func IsJs ¶

func IsJs() bool

func IsLinux ¶

func IsLinux() bool

func IsNacl ¶

func IsNacl() bool

func IsNetbsd ¶

func IsNetbsd() bool

func IsOpenbsd ¶

func IsOpenbsd() bool

func IsPlan9 ¶

func IsPlan9() bool

func IsSolaris ¶

func IsSolaris() bool

func IsTermux ¶

func IsTermux() bool

func IsWasip1 ¶

func IsWasip1() bool

func IsWindows ¶

func IsWindows() bool

func IsZero ¶

func IsZero(v reflect.Value) bool

func IsZos ¶

func IsZos() bool

func JoinHomeDir ¶

func JoinHomeDir(path string) (join string)

func JoinHomeFile ¶

func JoinHomeFile(path string) (join string)

func JsonIndent ¶

func JsonIndent(b []byte) string

func Lines ¶

func Lines(x []byte) []string

Lines returns the lines in the file x, including newlines. If the file does not end in a newline, one is supplied along with a warning about the missing newline.

func MakeCommandArg ¶ added in v0.0.16

func MakeCommandArg(arg ...string) string

func MarshalJSON ¶

func MarshalJSON(v any) []byte

func MarshalJsonToFile ¶

func MarshalJsonToFile(v any, name string)

func MoveFile ¶

func MoveFile(src, dst string)

func NewVersion ¶

func NewVersion[T string | uint64](s ...T) (v *object)

func ParseFloat ¶

func ParseFloat(sizeStr string) (size float64)

func ParseInt ¶

func ParseInt(s string) int64

func ParseUint ¶

func ParseUint(s string) uint64

func RandomAny ¶ added in v0.0.13

func RandomAny[T any](slice []T) T

func ReadEmbedFileMap ¶ added in v0.0.11

func ReadEmbedFileMap(embedFiles embed.FS, dir string) *maps.SafeMap[string, []byte]

func ReadFileToLines ¶

func ReadFileToLines(path string) (lines []string)

func ReadLines ¶

func ReadLines(fullPath string) ([]string, error)

func ReflectVisibleFields ¶ added in v0.0.14

func ReflectVisibleFields(object any) []reflect.StructField

func RegexpWebBodyBlocks ¶

func RegexpWebBodyBlocks(tagName string) string

func RunDir ¶

func RunDir() string

func SerialNumber ¶

func SerialNumber(b string) string

SerialNumber 这个才是swap功能，前后字节交换顺序

func SetNameAndEmail ¶

func SetNameAndEmail(s *Buffer)

func SetProxy ¶

func SetProxy(s *Buffer, isSetProxy bool)

func SetSafecrlf ¶

func SetSafecrlf(s *Buffer)

func SlicesIndex ¶

func SlicesIndex(slice any, item any) int

func SlicesInsert ¶

func SlicesInsert(slice any, index int, value any) any

func SplitFileByLines ¶

func SplitFileByLines(filePath string, size int)

SplitFileByLines 按行数切割文件

func SubStrRunes ¶

func SubStrRunes(s string, length int) string

func SwapBytes ¶

func SwapBytes(src []byte) (dst []byte)

func SwapBytes2HexString2 ¶

func SwapBytes2HexString2(src HexString) (dst string)

SwapBytes2HexString2 逆序，并不是交换 todo 重命名为 Reverse，如果输入参数复合8字节以下的字节对齐可以用二进制包，不过不通用

func ToCamel ¶

func ToCamel(data string, isCommit bool) string

func ToCamelToLower ¶

func ToCamelToLower(s string, isCommit bool) string

func ToCamelUpper ¶

func ToCamelUpper(s string, isCommit bool) string

func ToLines ¶

func ToLines[T string | []byte | *os.File | *bytes.Buffer](data T) (lines []string)

ToLines todo merge all safe type here, and move stream lines method here

func TrimExtension ¶

func TrimExtension(path string) string

func UnFormatDuration ¶

func UnFormatDuration(s string) time.Duration

func UnFormatTime ¶

func UnFormatTime(s string) time.Time

func Unquote ¶

func Unquote(line string) string

func UpdateModsByWorkSpace ¶

func UpdateModsByWorkSpace(isTidy, isUpdateAll bool, modWithCommitID ...string)

func Utf82Gbk ¶

func Utf82Gbk(utf8 string) (gbk string)

func WriteAppend ¶

func WriteAppend[T Type](name string, data T)

func WriteBinaryFile ¶

func WriteBinaryFile[T Type](name string, data T)

func WriteGoFile ¶

func WriteGoFile[T Type](name string, data T)

func WriteLines ¶

func WriteLines(lines []string, fullPath string) error

func WriteTruncate ¶

func WriteTruncate[T Type](name string, data T)

Types ¶

type AppKind ¶

type AppKind byte

const (
	SuperRecovery4Kind AppKind = iota
	AneData6Kind
	ChaoQiangZhaoPianKind
	DataExploreKind
	DiskGetorKind
	DocxBuildKind
	ExcelHuiFuZhuanJiaKind
	ExcelRebuild1Kind
	ExcelRebuild3Kind
	ExcelScanKind
	HykHfKind
	Jphf3Kind
	MailScanKind
	OfficeBuildKind
	OfficeZipBuildKind
	PptxBuildKind
	SuperRecovery2Kind
	WordRepairerKind
	WordScanKind
	XlsxBuildKind
	ZipBuildKind
	InvalidAppKind
)

func ConvertInteger2AppKind ¶

func ConvertInteger2AppKind[T constraints.Integer](v T) AppKind

func (AppKind) AssertKind ¶

func (k AppKind) AssertKind(kinds string) AppKind

func (AppKind) Keys ¶

func (k AppKind) Keys() []string

func (AppKind) Kinds ¶

func (k AppKind) Kinds() []AppKind

func (AppKind) String ¶

func (k AppKind) String() string

func (AppKind) SvgFileName ¶

func (k AppKind) SvgFileName() string

type Buffer ¶

type Buffer struct{ *bytes.Buffer }

func NewBuffer ¶

func NewBuffer[T Type](s T) *Buffer

func NewHexDump ¶

func NewHexDump(hexdumpStr HexDumpString) (data *Buffer)

func NewHexString ¶

func NewHexString(s HexString) *Buffer

func ReaderGzip ¶

func ReaderGzip[T Type](data T) *Buffer

func (*Buffer) AppendByteSlice ¶

func (b *Buffer) AppendByteSlice(bytesSlice ...[]byte) []byte

func (*Buffer) BigNumXorWithAlign ¶

func (b *Buffer) BigNumXorWithAlign(arg1, arg2 []byte, align int) (xorStream []byte)

func (*Buffer) CheckDesBlockSize ¶

func (b *Buffer) CheckDesBlockSize()

func (*Buffer) Contains ¶

func (b *Buffer) Contains(substr string) bool

func (*Buffer) CutString ¶

func (b *Buffer) CutString(left, right string) (cut string, found bool)

func (*Buffer) CutWithIndex ¶

func (b *Buffer) CutWithIndex(x, y int) []byte

func (*Buffer) HexString ¶

func (b *Buffer) HexString() HexString

func (*Buffer) HexStringUpper ¶

func (b *Buffer) HexStringUpper() HexString

func (*Buffer) Indent ¶

func (b *Buffer) Indent(deep int)

func (*Buffer) InsertByte ¶

func (b *Buffer) InsertByte(index int, ch byte)

func (*Buffer) InsertBytes ¶

func (b *Buffer) InsertBytes(index int, insert []byte) []byte

func (*Buffer) InsertRune ¶

func (b *Buffer) InsertRune(index int, r rune)

func (*Buffer) InsertString ¶

func (b *Buffer) InsertString(index int, s string) string

func (*Buffer) InsertStringWithSplit ¶

func (b *Buffer) InsertStringWithSplit(size int, insert string) string

func (*Buffer) LinesToString ¶

func (b *Buffer) LinesToString(lines []string) string

func (*Buffer) MergeByte ¶

func (b *Buffer) MergeByte(streams ...[]byte) []byte

func (*Buffer) NewLine ¶

func (b *Buffer) NewLine() *Buffer

func (*Buffer) ObjectBegin ¶

func (b *Buffer) ObjectBegin()

func (*Buffer) ObjectEnd ¶

func (b *Buffer) ObjectEnd()

func (*Buffer) Quote ¶

func (b *Buffer) Quote()

func (*Buffer) QuoteWith ¶

func (b *Buffer) QuoteWith(s string) *Buffer

func (*Buffer) ReadBinary ¶

func (b *Buffer) ReadBinary(order binary.ByteOrder) (data any)

func (*Buffer) ReaderGzip ¶

func (b *Buffer) ReaderGzip() *Buffer

func (*Buffer) ReplaceAll ¶

func (b *Buffer) ReplaceAll(old, new string) *Buffer

func (*Buffer) SliceBegin ¶

func (b *Buffer) SliceBegin()

func (*Buffer) SliceEnd ¶

func (b *Buffer) SliceEnd()

func (*Buffer) SplitBytes ¶

func (b *Buffer) SplitBytes(size int) (blocks [][]byte)

func (*Buffer) SplitString ¶

func (b *Buffer) SplitString(size int) (blocks []string)

func (*Buffer) ToLines ¶

func (b *Buffer) ToLines() (lines []string)

func (*Buffer) WriteBinary ¶

func (b *Buffer) WriteBinary(order binary.ByteOrder, data any)

func (*Buffer) WriteBytesLn ¶

func (b *Buffer) WriteBytesLn(buf []byte) *Buffer

func (*Buffer) WritePackageName ¶

func (b *Buffer) WritePackageName()

func (*Buffer) WriteStringLn ¶

func (b *Buffer) WriteStringLn(s string) *Buffer

type CommandSession ¶ added in v0.0.16

type CommandSession struct {
	*exec.Cmd
	Result           string
	CurrentDirectory string
	// contains filtered or unexported fields
}

func NewCommandSession ¶ added in v0.0.16

func NewCommandSession() *CommandSession

func RunCommand ¶

func RunCommand(command string) *CommandSession

func RunCommandArgs ¶ added in v0.0.16

func RunCommandArgs(arg ...string) *CommandSession

func (*CommandSession) GetPid ¶ added in v0.0.16

func (s *CommandSession) GetPid() <-chan int

func (*CommandSession) SetDir ¶ added in v0.0.16

func (s *CommandSession) SetDir(dir string)

func (*CommandSession) SetLog ¶ added in v0.0.16

func (s *CommandSession) SetLog(wr io.Writer)

type GeneratedFile ¶

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

func (*GeneratedFile) Buffer ¶ added in v0.0.15

func (g *GeneratedFile) Buffer() *bytes.Buffer

func (*GeneratedFile) Enum ¶

func (g *GeneratedFile) Enum(kindName string, kinds, tooltip []string)

func (*GeneratedFile) P ¶

func (g *GeneratedFile) P(v ...any)

func (*GeneratedFile) ReadTemplates ¶

func (g *GeneratedFile) ReadTemplates(path string)

type HexDumpString ¶

type HexDumpString string

type HexString ¶

type HexString string

func SwapBytes2HexString ¶

func SwapBytes2HexString(src []byte) (dst HexString)

type Interface ¶

type Interface interface {
	P(v ...any)
	Enum(kindName string, kinds []string, tooltip []string)
	ReadTemplates(path string)
	Buffer() *bytes.Buffer
}

func NewGen ¶ added in v0.0.6

func NewGen() Interface

type Pool ¶ added in v0.0.28

type Pool[T any] struct {
	// contains filtered or unexported fields
}

func NewPool ¶ added in v0.0.28

func NewPool[T any](fn func() T) *Pool[T]

func (*Pool[T]) Get ¶ added in v0.0.28

func (p *Pool[T]) Get() T

func (*Pool[T]) Put ¶ added in v0.0.28

func (p *Pool[T]) Put(v T)

type Type ¶

type Type interface {
	string | HexString | HexDumpString | ~[]byte | ~*bytes.Buffer | *big.Int
}

Directories ¶

Path	Synopsis
binary
bitfield
clang
constraints Package constraints defines a set of useful constraints to be used with type parameters.	Package constraints defines a set of useful constraints to be used with type parameters.
dataBase
datasize Package datasize provides a data size type and constants.	Package datasize provides a data size type and constants.
deepcopy deepcopy makes deep copies of things.	deepcopy makes deep copies of things.
events
firefox
bookmark
i18n
ico
internal
languages
tmp
maps
net
httpClient
netpacket
transport/tcp
transport/tcp/m command
transport/udp
orderedmap
script
javaScript
taskqueue Package taskqueue provides a simple asynchronous task queue.	Package taskqueue provides a simple asynchronous task queue.
txt Package txt provides various text utilities.	Package txt provides various text utilities.
unicode
xlsx Package xlsx provides the ability to extract text from Excel spreadsheets.	Package xlsx provides the ability to extract text from Excel spreadsheets.

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