英文:
Parsing file, ignoring comments and blank lines
问题
正如标题所说，我正在尝试解析一个文件，但忽略注释（以#开头）或空行。我已经尝试为此编写了一个系统，但它似乎总是忽略了应该忽略注释和/或空行的部分。
lines := strings.Split(d, "\n")
var output map[string]bool = make(map[string]bool)
for _, line := range lines {
if strings.HasPrefix(line, "#") != true {
output[line] = true
} else if len(line) > 0 {
output[line] = true
}
}
当运行时（这是一个函数的一部分），它输出如下内容：
这是输入（d变量）：
Minecraft
Zerg Rush
Pokemon
# Hello
这是打印输出（output变量）：
map[Minecraft:true Zerg Rush:true Pokemon:true :true # Hello:true]
我的问题是它仍然保留了""和"# Hello"的值，这意味着某些地方出错了，我还没有找到原因。
那么，我在哪里出错了，导致它保留了不正确的值？
英文:
As the title says, I am trying to parse a file but ignore comments (started with #) or blank lines. I have tried to make a system for this, yet it always seems to ignore that it should be ignoring comments and/or blank lines.
lines := strings.Split(d, "\n")
var output map[string]bool = make(map[string]bool)
for _, line := range lines {
if strings.HasPrefix(line, "#") != true {
output = true
} else if len(line) > 0 {
output = true
}
}
When run (this is part of a function), it outputs the following
This is the input ('d' variable):
Minecraft
Zerg Rush
Pokemon
# Hello
This is the output when printed ('output' variable):
map[Minecraft:true Zerg Rush:true Pokemon:true :true # Hello:true]
My issue here is that it still keeps the "" and "# Hello" values, meaning that something failed, something I haven't been able to figure out.
So, what am I doing wrong that this keeps the improper values?
答案1
得分: 3
len(line) > 0将对"# Hello"行返回true，因此它将被添加到output中。
目前，您正在添加不以#开头的行或者不为空的行。您需要只添加同时满足这两个条件的行：
if !strings.HasPrefix(line, "#") && len(line) > 0 {
output[line] = true
}
英文:
len(line) > 0 will be true for the "# Hello" line, so it will get added to output.
Currently, you are adding lines that either don't start with a # or are not empty. You need to only add lines that satisfy both conditions:
if !strings.HasPrefix(line, "#") && len(line) > 0 {
output = true
}
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