package cmdflag

import "cmd/go/internal/cmdflag"

Package cmdflag handles flag processing common to several go tools.

Index ¶

• func IsBool(v flag.Value) bool
• func SetBool(cmd string, flag *bool, value string)
• func SetInt(cmd string, flag *int, value string)
• func SyntaxError(cmd, msg string)
• type Defn
• func Parse(cmd string, defns []*Defn, args []string, i int) (f *Defn, value string, extra bool)

Functions ¶

func IsBool ¶

func IsBool(v flag.Value) bool

IsBool reports whether v is a bool flag.

func SetBool ¶

func SetBool(cmd string, flag *bool, value string)

SetBool sets the addressed boolean to the value.

func SetInt ¶

func SetInt(cmd string, flag *int, value string)

SetInt sets the addressed integer to the value.

func SyntaxError ¶

func SyntaxError(cmd, msg string)

SyntaxError reports an argument syntax error and exits the program.

Types ¶

type Defn ¶

type Defn struct {
	Name       string     // Name on command line.
	BoolVar    *bool      // If it's a boolean flag, this points to it.
	Value      flag.Value // The flag.Value represented.
	PassToTest bool       // Pass to the test binary? Used only by go test.
	Present    bool       // Flag has been seen.
}

Defn defines a flag we know about.

func Parse ¶

func Parse(cmd string, defns []*Defn, args []string, i int) (f *Defn, value string, extra bool)

Parse sees if argument i is present in the definitions and if so, returns its definition, value, and whether it consumed an extra word. If the flag begins (cmd+".") it is ignored for the purpose of this function.

Source Files ¶

flag.go