osargs
About
Package osargs provides functions to parse command line arguments. It is published on https://github.com/vbsw/osargs and https://gitlab.com/vbsw/osargs.
Copyright
Copyright 2021, Vitali Baumtrok ([email protected]).
osargs is distributed under the Boost Software License, version 1.0. (See accompanying file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt)
osargs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Boost Software License for more details.
Usage
Example A
package main
import (
"fmt"
"github.com/vbsw/osargs"
)
func main() {
args := osargs.New()
if args.Parse("--help", "-h").Available() {
fmt.Println("valid parameters are -h or -v.")
} else if args.Parse("--version", "-v").Available() {
fmt.Println("version 1.0.0")
} else {
unparsedArgs := args.UnparsedArgs()
if len(unparsedArgs) == 1 {
fmt.Println("error: unknown parameter", unparsedArgs[0])
} else if len(unparsedArgs) > 1 {
fmt.Println("error: too many arguments")
}
}
}
Example B
package main
import (
"fmt"
"github.com/vbsw/osargs"
)
func main() {
start := "0"
end := "0"
args := osargs.New()
delimiter := osargs.NewDelimiter(false, false, "=")
startArg := args.ParsePairs(delimiter, "start")
endArg := args.ParsePairs(delimiter, "end")
if startArg.Available() {
start = startArg.Values[0]
end = start
}
if endArg.Available() {
end = endArg.Values[0]
}
fmt.Println("processing from", start, "to", end)
}
Command line:
$ ./test start=1 end=10
$ processing from 1 to 10
