如何美化 Perl 生成的 Perl 代码?

发布于 2024-07-18 05:30:28 字数 2233 浏览 9 评论 0原文

我有一个用 Perl 编写的测试生成器。 它生成连接到模拟器的测试。 这些测试本身是用 Perl 编写的,并通过其 API 连接到模拟器。 我希望生成的代码是人类可读的,这意味着我希望它能够正确缩进和格式化。 有没有好的办法呢?

详细信息如下,或者您可以跳至下面的实际问题。

这是一个示例:


my $basic =  ABC
        TRIGGER        => DELAY(
            NUM            => 500,
            ),
        )
BASIC

my $additional =  STATE_IS(
        STATE          => DEF,
        INDEX          => 0,
        ),

ADDITIONAL

我希望在调用 &event 后延迟 500 秒执行命令 ABC(单位现在不相关),索引0的状态是DEF。 有时我还想等待索引 1、2、3 等...

对于只有一个索引,我想在测试中看到这一点:


    &event(
        CMD            => ABC
        TRIGGER        => DELAY(
            NUM            => 500,
            TRIGGER        => STATE_IS(
                STATE          => DEF,
                INDEX          => 0,
                ),
            ),
        )

对于两个索引,我想看到:


    &event(
        CMD            => ABC
        TRIGGER        => DELAY(
            NUM            => 500,
            TRIGGER        => STATE_IS(
                STATE          => DEF,
                INDEX          => 0,
                TRIGGER        => STATE_IS(
                    STATE          => DEF,
                    INDEX          => 1,
                    ),
                ),
            ),
        )

所以基本上我要添加一个块:


            TRIGGER        => STATE_IS(
                STATE          => DEF,
                INDEX          => 0,
                ),

对于每个索引,并且索引号发生变化。

这是我的做法:


for $i (0..$num_indeces) {
    # update the index number
    $additional =~ s/(INDEX\s*=>\s*)\d+,/$1 $i,/;

    $basic =~ s/(
                (\),\s*)  # capture sequences of ),
                +         # as many as possible 
                \)\s*     # end with ) without a , 
}               )/$additional $1/sx; # replace with the additional data

这是实际问题

这里的问题是代码的缩进效果很差。 我想通过这样的美化器运行生成的 $basic

&prettify($basic, "perl");

这将根据 Perl 的最佳实践很好地格式化它。 有什么好的方法可以做到这一点吗?

I have a test generator written in Perl. It generates tests that connect to a simulator. These tests are themselves written in Perl and connect to the simulator via its API. I would like the generated code to be human-readable, which means I'd like it to be properly indented and formatted. Is there a good way to do it?

Details follow, or you can skip to the actual question below.

This is an example:


my $basic =  ABC
        TRIGGER        => DELAY(
            NUM            => 500,
            ),
        )
BASIC

my $additional =  STATE_IS(
        STATE          => DEF,
        INDEX          => 0,
        ),

ADDITIONAL

I'd like the command ABC to be executed with a delay of 500 (units aren't relevant just now) after I call &event, and the state of index 0 is DEF. Sometimes I'll also want to wait for indeces 1, 2, 3 etc...

For only one index I'd like to see this in my test:


    &event(
        CMD            => ABC
        TRIGGER        => DELAY(
            NUM            => 500,
            TRIGGER        => STATE_IS(
                STATE          => DEF,
                INDEX          => 0,
                ),
            ),
        )

For two indeces I'd like to see:


    &event(
        CMD            => ABC
        TRIGGER        => DELAY(
            NUM            => 500,
            TRIGGER        => STATE_IS(
                STATE          => DEF,
                INDEX          => 0,
                TRIGGER        => STATE_IS(
                    STATE          => DEF,
                    INDEX          => 1,
                    ),
                ),
            ),
        )

So basically I'm adding a block of:


            TRIGGER        => STATE_IS(
                STATE          => DEF,
                INDEX          => 0,
                ),

for each index, and the index number changes.

Here's how I'm doing it:


for $i (0..$num_indeces) {
    # update the index number
    $additional =~ s/(INDEX\s*=>\s*)\d+,/$1 $i,/;

    $basic =~ s/(
                (\),\s*)  # capture sequences of ),
                +         # as many as possible 
                \)\s*     # end with ) without a , 
}               )/$additional $1/sx; # replace with the additional data

Here's the actual question

The problem here is that the code comes out poorly indented. I'd like to run the resulting $basic through a prettifier like this:

&prettify($basic, "perl");

Which would format it nicely according to Perl's best practices. Is there any good way to do this?

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评论(2

罪歌 2024-07-25 05:30:28

PerlTidy 使您的代码不仅整洁,而且非常漂亮。 您可以根据当地的编码标准轻松调整它。

PerlTidy makes your code not only tidy, but really beautiful. You can easily tweak it according to your local coding standards.

乞讨 2024-07-25 05:30:28

我用过这个:

use Perl::Tidy;
sub Format {
    my $source = shift;
    my $result;
    Perl::Tidy::perltidy(
        source      => \$source,
        destination => \$result,
        argv        => [qw(-pbp -nst)]
    );
    return $result;
}

I have used this:

use Perl::Tidy;
sub Format {
    my $source = shift;
    my $result;
    Perl::Tidy::perltidy(
        source      => \$source,
        destination => \$result,
        argv        => [qw(-pbp -nst)]
    );
    return $result;
}
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