Forum: Cfengine Help
Subject: Re: Questions about the reference manual
Author: mwlarsen
Link to topic: https://cfengine.com/forum/read.php?3,18107,18199#msg-18199
neilhwatson Wrote:
-------------------------------------------------------
> > 1. depth_search => urecurse("inf");
> 2.
> 3. body depth_search urecurse(d)
> 4. {
> 5. depth => "${d}";
> 6. exclude_dirs => { "\.svn", "\.git" };
> 7. }
>
Perhaps it would help if I had a clue what the symbols "=>" and "->" mean.
They're not operators I'm familiar with from any of the scripting languages
I've used. Can you describe their meaning? Give them a name?
> Line 1 is from a promise. Parts of a promise are
> comprised of external body parts.
What promise is line 1 from? What are the "external body parts" you're
referring to?
> At first this
> seems like spaghetti programming but this actually
> allows for lots of code to be reused.
>
> Line 3 started the body part of the depth_search
> type specifically named urecurse. This name could
> be anything.
I'm not grasping what you mean by "depth_search type specifically named
urecurse". There are different types of depth_search?
> (d) names the variable that is
> passed from line 1, the string 'inf'. This is
> similar to passing variables to functions and
> subroutines in programming languages.
>
> Line 5 sets the depth of the recursion, in this
> case infinite.
>
> Line 6 tells the recursion to exclude directories
> names .svn and .git.
I did at least grasp those three paragraphs...
Thanks for your patience.
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