bb/tool/grange/main.go

115 lines
1.6 KiB
Go

package grange
/* Concatenate files in "stdout". */
import(
"fmt"
"strconv"
"github.com/omnipunk/cli/mtool"
)
var(
flagSet *mtool.Flags
args []string
blockSize int
rangeType string
rangeTypeMap map[string] func() = map[string] func() {
"int" : IntRange,
"inteq" : IntRangeEq,
"byte" : ByteRange,
"rune" : RuneRange,
}
)
func IntRange() {
IntRangeHndl(func(a, b int) bool {
if a < b {
return true
} else {
return false
}
}, func(a, b int) bool {
if a > b {
return true
} else {
return false
}
})
}
func IntRangeEq () {
IntRangeHndl(func(a, b int) bool {
if a <= b {
return true
} else {
return false
}
}, func(a, b int) bool {
if a >= b {
return true
} else {
return false
}
})
}
func IntRangeHndl(fn1, fn2 func(a, b int) bool) {
var (
err error
i, a, b int
)
step := 1
if len(args) < 2 {
flagSet.Usage()
}
if len(args) == 3 {
step, err = strconv.Atoi(args[2])
if err != nil {
panic(err)
}
if step == 0 {
flagSet.Usage()
}
}
a, err = strconv.Atoi(args[0])
if err != nil {
panic(err)
}
b, err = strconv.Atoi(args[1])
if err != nil {
panic(err)
}
if step > 0 {
if a>b {
flagSet.Usage()
}
for i=a ; fn1(i, b) ; i += step {
fmt.Printf("%d%s", i, "\n")
}
} else if a > b {
for i=a ; fn2(i, b) ; i += step {
fmt.Printf("%d%s", i, "\n")
}
} else {
flagSet.Usage()
}
}
func ByteRange() {
}
func RuneRange() {
}
func Run(flags *mtool.Flags) {
flags.StringVar(&rangeType, "t", "int", "range type")
flags.Parse()
args = flagSet.Args()
flagSet = flags
rangeTypeMap[rangeType]()
}