tool

Documentation

Index

• Constants
• Variables
• func EraseAnyWSs(s string) string
• func HasOrderPrefix(s string) bool
• func IsDigitHeavy(s string) bool
• func Launch(cmd string, args ...string) (err error)
• func LaunchEditor(editor string) (content []byte, err error)
• func LaunchEditorWith(editor string, filename string) (content []byte, err error)
• func Max(a, b int) int
• func Min(a, b int) int
• func ParseComplex(s string) (v complex128)
• func ParseComplexX(s string) (v complex128, err error)
• func PressAnyKeyToContinue(in io.Reader, msg ...string) (input string)
• func PressEnterToContinue(in io.Reader, msg ...string) (input string)
• func RandomStringPure(length int) (result string)
• func ReadPassword() (text string, err error)
• func Soundex(s string) (snd4 string)
• func StripOrderPrefix(s string) string
• func StripPrefix(s, p string) string
• func StripQuotes(s string) string
• type DistanceOption
  • func JWWithThreshold(threshold float64) DistanceOption
• type StringDistance
  • func JaroWinklerDistance(opts ...DistanceOption) StringDistance

Constants

const StringMetricFactor = 100000000000

StringMetricFactor for JaroWinklerDistance algorithm

Variables

var SavedOsArgs []string

SavedOsArgs is a copy of os.Args, just for testing

Functions

func EraseAnyWSs

func EraseAnyWSs(s string) string

EraseAnyWSs eats any whitespaces inside the giving string s.

func HasOrderPrefix

func HasOrderPrefix(s string) bool

HasOrderPrefix tests whether an order prefix is present or not. An order prefix is a dotted string with multiple alphabet and digit. Such as: "zzzz.", "0001.", "700.", "A1." ...

func IsDigitHeavy

func IsDigitHeavy(s string) bool

IsDigitHeavy tests if the whole string is digit

func Launch

func Launch(cmd string, args ...string) (err error)

Launch executes a command setting both standard input, output and error.

func LaunchEditor

func LaunchEditor(editor string) (content []byte, err error)

LaunchEditor launches the specified editor

func LaunchEditorWith

func LaunchEditorWith(editor string, filename string) (content []byte, err error)

LaunchEditorWith launches the specified editor with a filename

func Max

func Max(a, b int) int

Max return the larger one of int

func Min

func Min(a, b int) int

Min return the less one of int

func ParseComplex

func ParseComplex(s string) (v complex128)

ParseComplex converts a string to complex number.

Examples:

c1 := cmdr.ParseComplex("3-4i")
c2 := cmdr.ParseComplex("3.13+4.79i")

func ParseComplexX

func ParseComplexX(s string) (v complex128, err error)

ParseComplexX converts a string to complex number. If the string is not valid complex format, return err not nil.

Examples:

c1 := cmdr.ParseComplex("3-4i")
c2 := cmdr.ParseComplex("3.13+4.79i")

func PressAnyKeyToContinue

func PressAnyKeyToContinue(in io.Reader, msg ...string) (input string)

PressAnyKeyToContinue lets program pause and wait for user's ANY key press in console/terminal

func PressEnterToContinue

func PressEnterToContinue(in io.Reader, msg ...string) (input string)

PressEnterToContinue lets program pause and wait for user's ENTER key press in console/terminal

func RandomStringPure

func RandomStringPure(length int) (result string)

RandomStringPure generate a random string with length specified.

func ReadPassword

func ReadPassword() (text string, err error)

ReadPassword reads the password from stdin with safe protection

func Soundex

func Soundex(s string) (snd4 string)

Soundex returns the english word's soundex value, such as: 'tags' => 't322'

func StripOrderPrefix

func StripOrderPrefix(s string) string

StripOrderPrefix strips the prefix string fragment for sorting order. see also: Command.Group, Flag.Group, ... An order prefix is a dotted string with multiple alphabet and digit. Such as: "zzzz.", "0001.", "700.", "A1." ...

func StripPrefix

func StripPrefix(s, p string) string

StripPrefix strips the prefix 'p' from a string 's'

func StripQuotes

func StripQuotes(s string) string

StripQuotes strips single or double quotes around a string.

Types

type DistanceOption

type DistanceOption func(StringDistance)

DistanceOption is a functional options prototype

func JWWithThreshold

func JWWithThreshold(threshold float64) DistanceOption

JWWithThreshold sets the threshold for Jaro-Winkler algorithm.

type StringDistance

type StringDistance interface {
	Calc(s1, s2 string, opts ...DistanceOption) (distance int)
}

StringDistance is an interface for string metric. A string metric is a metric that measures distance between two strings. In most case, it means that the edit distance about those two strings. This is saying, it is how many times are needed while you were modifying string to another one, note that inserting, deleting, substing one character means once.

func JaroWinklerDistance

func JaroWinklerDistance(opts ...DistanceOption) StringDistance

JaroWinklerDistance returns an calculator for two strings distance metric, with Jaro-Winkler algorithm.