[ruby-core:78081] [Ruby trunk Feature#12913] A way to configure the default maximum width of pp

Issue #12913 has been updated by Yusuke Endoh.


Akira Tanaka wrote:
> pp (including pretty_inspect and PP.pp) method is used in many gems.

Note that my proposal is only for PP; the scope does not includes pretty_inspect.

PP is a debugging-purpose API, so it is rarely used in a released code.  So, we don't have to consider the case where PP is used in multiple modules simultaneously, I think.  Also, because of debugging-purpose, it would be good to prioritize usability than safety.

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Feature #12913: A way to configure the default maximum width of pp
https://bugs.ruby-lang.org/issues/12913#change-61430

* Author: Yusuke Endoh
* Status: Feedback
* Priority: Normal
* Assignee: Akira Tanaka
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How about having an easy way to configure the maximum width of a line of `pp` output?
Currently, `pp` accepts the maximum width as an optional argument:

    pp(big_array, $>, 120)

However, this is obviously too long for a useful debugging-purpose method like `pp`.  Even worse, we must add the fragment "`, $>, 120`" to all calls to `pp`.  I don't feel this is reasonable.

The patch attached provides `PP.default_maxwidth=` and `PP.default_maxwidth`, which can be used to configure the default setting of the maxwidth.

    PP.default_maxwidth = 1
    pp([1, 2, 3])
    #=> [1,
    #    2,
    #    3]

Akr-san, what do you think?

---Files--------------------------------
pp-default-maxwidth.patch (1.05 KB)


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