58 lines
873 B
Go
58 lines
873 B
Go
/* Yes program implementation. */
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package yes
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import (
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"os"
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"fmt"
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"strings"
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"github.com/vultras/bb/input"
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"github.com/vultras/cli/mtool"
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)
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var (
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nArg int
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)
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func yes(s string) {
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if nArg < 0 {
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for {
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fmt.Print(s)
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}
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} else {
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for i := 0; i < nArg; i += 1 {
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fmt.Print(s)
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}
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}
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}
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func Run(flagSet *mtool.Flags) {
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var (
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stdinFlag bool
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nFlag bool
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s string
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)
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flagSet.BoolVar(&stdinFlag, "s", false, "Read string from stdin.")
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flagSet.BoolVar(&nFlag, "n", false, "Do not add net line character.")
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flagSet.IntVar(&nArg, "N", -1, "Repeat input N times. Negative value means infinite cycle.")
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flagSet.Parse()
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args := flagSet.Args()
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if stdinFlag {
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in, _ := input.ReadAllRaw(os.Stdin)
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s = string(in)
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} else {
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if len(args) > 0 {
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s = strings.Join(args, " ")
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} else {
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s = "y"
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}
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}
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if !nFlag {
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s += "\n"
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}
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yes(s)
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}
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