英文:
How to parse a list of parameters in Golang (multiple duplicate and comma separated)?
问题
我需要解析GO中的不同参数（多个重复且以逗号分隔）。我该如何处理以下示例：
go run ./test.go -param "one, two" -param "tree" -param "four"
这个示例很好，但对于上述示例不起作用：
[one, two tree four]
也就是说，它可以处理多个重复参数，但无法处理逗号分隔的参数。
我该如何改进上述脚本以解析多个参数，包括逗号分隔的参数，以获得以下结果（无逗号）：
[one two tree four]
英文:
I need to parse different parameters in GO (multiple duplicate and comma separated). How can I do it for this example:
go run ./test.go -param "one, two" -param "tree" -param "four"
This example is good but doesn't work for the mentioned example:
[one, two tree four]
I.e. it works for the multiple duplicate parameters but doesn't work for the comma separated.
How can I improve the mentioned script to parse several parameters including comma separated to get this (no comma) in the result:
[one two tree four]
?
答案1
得分: 2
修改Set方法，使其在逗号处分割参数，并将结果追加到接收器中。
func (i *arrayFlags) Set(value string) error {
s := strings.Split(value, ",")
for i := range s {
s[i] = strings.TrimSpace(s[i])
}
*i = append(*i, s...)
return nil
}
英文:
Modify the Set method such that it splits its argument at comma and appends the result to the receiver.
func (i *arrayFlags) Set(value string) error {
s := strings.Split(value, ",")
for i := range s {
s[i] = strings.TrimSpace(s[i])
}
*i = append(*i, s...)
return nil
}
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