github.com/kbehouse/nsc@v0.0.6/cmd/numberparams.go (about)

     1  /*
     2   * Copyright 2018 The NATS Authors
     3   * Licensed under the Apache License, Version 2.0 (the "License");
     4   * you may not use this file except in compliance with the License.
     5   * You may obtain a copy of the License at
     6   *
     7   * http://www.apache.org/licenses/LICENSE-2.0
     8   *
     9   * Unless required by applicable law or agreed to in writing, software
    10   * distributed under the License is distributed on an "AS IS" BASIS,
    11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12   * See the License for the specific language governing permissions and
    13   * limitations under the License.
    14   */
    15  
    16  package cmd
    17  
    18  import (
    19  	"fmt"
    20  
    21  	"github.com/dustin/go-humanize"
    22  
    23  	cli "github.com/nats-io/cliprompts/v2"
    24  )
    25  
    26  type NumberParams int64
    27  
    28  func (e *NumberParams) Valid() error {
    29  	// flag already insures this is a number
    30  	return nil
    31  }
    32  
    33  func (e *NumberParams) Edit(prompt string) error {
    34  	var err error
    35  	var nv int64
    36  	sv := fmt.Sprintf("%d", e)
    37  	_, err = cli.Prompt(prompt, sv, cli.Val(func(s string) error {
    38  		nv, err = ParseNumber(s)
    39  		return err
    40  	}))
    41  	if err != nil {
    42  		return err
    43  	}
    44  	*e = NumberParams(nv)
    45  	return nil
    46  }
    47  
    48  func (e *NumberParams) Set(s string) error {
    49  	nv, err := ParseNumber(s)
    50  	if err != nil {
    51  		return err
    52  	}
    53  	*e = NumberParams(nv)
    54  	return nil
    55  }
    56  
    57  func (e *NumberParams) Type() string {
    58  	return "number"
    59  }
    60  
    61  func (e *NumberParams) String() string {
    62  	return humanize.Comma(int64(*e))
    63  }
    64  
    65  func (e *NumberParams) Int64() int64 {
    66  	return int64(*e)
    67  }