github.com/kaydxh/golang@v0.0.131/go/strconv/atonum.go (about)

     1  /*
     2   *Copyright (c) 2022, kaydxh
     3   *
     4   *Permission is hereby granted, free of charge, to any person obtaining a copy
     5   *of this software and associated documentation files (the "Software"), to deal
     6   *in the Software without restriction, including without limitation the rights
     7   *to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     8   *copies of the Software, and to permit persons to whom the Software is
     9   *furnished to do so, subject to the following conditions:
    10   *
    11   *The above copyright notice and this permission notice shall be included in all
    12   *copies or substantial portions of the Software.
    13   *
    14   *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    15   *IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    16   *FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    17   *AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    18   *LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    19   *OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    20   *SOFTWARE.
    21   */
    22  package strconv
    23  
    24  import (
    25  	"fmt"
    26  	"strconv"
    27  )
    28  
    29  func ToFloat(str string) (float64, error) {
    30  	return strconv.ParseFloat(str, 64)
    31  }
    32  
    33  func ToInt(str string) (int, error) {
    34  	return strconv.Atoi(str)
    35  }
    36  
    37  func ToInt64(str string) (int64, error) {
    38    return  strconv.ParseInt(str, 10, 64)
    39  }
    40  
    41  func ToUInt64(str string) (uint64, error) {
    42    return  strconv.ParseUint(str, 10, 64)
    43  }
    44  
    45  func ParseNumOrDefault[T any](str string, _default T, convert func(string) (T, error)) T {
    46  	if str == "" {
    47  		return _default
    48  	}
    49  	n, err := convert(str)
    50  	if err != nil {
    51  		//logurs.Infof("Invalid number value: %s", err)
    52  		return _default
    53  	}
    54  	return n
    55  }
    56  
    57  func ParseNum[T any](str string, convert func(string) (T, error)) (T, error) {
    58      var t T
    59  	if str == "" {
    60  		return t,  fmt.Errorf("string is empty")
    61  	}
    62  	return convert(str)
    63  }
    64  
    65  func ParseNums[T any](strs []string, convert func(string) (T, error)) ([]T, error) {
    66      var ts []T
    67  	if len(strs) == 0{
    68  		return ts,  fmt.Errorf("string is empty")
    69  	}
    70  
    71  	for _, str := range strs {
    72  	  t, err := convert(str)
    73  	  if err != nil {
    74  		return nil, err
    75  	  }
    76  	  ts = append(ts, t)
    77  	}
    78  	return  ts, nil
    79  }