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From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
To: Adam Porter <adam@alphapapa.net>
Cc: emacs-orgmode@gnu.org
Subject: Re: [PATCH] org-agenda: Add 'none setting for org-agenda-overriding-header
Date: Sun, 20 Aug 2017 10:25:38 +0200	[thread overview]
Message-ID: <87wp5yir25.fsf@nicolasgoaziou.fr> (raw)
In-Reply-To: <87pobrc5vp.fsf@alphapapa.net> (Adam Porter's message of "Sat, 19 Aug 2017 21:47:22 -0500")

Hello,

Adam Porter <adam@alphapapa.net> writes:

> Here is the new patch.

Thank you.

> I took the liberty of using a macro to replace the code that was
> duplicated in the four agenda functions. Please let me know if you
> would like any further changes.

Some comments follow.

> From 203bc583da0c482ab7092623383fe47c2d729420 Mon Sep 17 00:00:00 2001
> From: Adam Porter <adam@alphapapa.net>
> Date: Sat, 19 Aug 2017 21:26:12 -0500
> Subject: [PATCH] org-agenda: Refactor org-agenda-overriding-header code
>
> Replace org-agenda-overriding-header tests in these four functions with
> calls to a macro, eliminating the duplicate code.  Also, disable the
> header when the variable is set to the empty string.

Nitpick: the paragraph above usually comes after the list of changes.

> * lisp/org-agenda.el (org-agenda--insert-overriding-header): Add macro.
> (org-agenda-list): Use macro.
> (org-search-view): Use macro.
> (org-todo-list): Use macro.
> (org-tags-view): Use macro.

Nitpick: you can only write "Use macro" once, on the last line.

> +(cl-defmacro org-agenda--insert-overriding-header (&key default)

Why `cl-defmacro'? Usually, `defmacro' is enough.

> +  "Insert header into agenda view depending on value of `org-agenda-overriding-header'.
> +If the empty string, don't insert a header.  If any other string,
> +insert it as a header.  If nil, insert DEFAULT, which should
> +evaluate to a string."
> +  (declare (debug (&key form)))
> +  `(pcase org-agenda-overriding-header
> +     ("" nil)  ; Don't insert a header if set to empty string
> +     ;; Insert user-specified string
> +     ((pred stringp) (insert
> +		      (org-add-props (copy-sequence org-agenda-overriding-header)
> +			  nil 'face 'org-agenda-structure)
> +		      "\n"))

While we're at it,

  `org-add-props' + `copy-sequence' = `propertize'

> +     ;; When nil, make string automatically and insert it
> +     ((pred null) (insert ,default))))

I suggest to use ,@default (and, obviously (&rest default) in the
arguments) so we are not limited to one S-exp.

> +	  (org-agenda--insert-overriding-header
> +	   :default (concat (org-agenda-span-name span)
> +			    "-agenda"
> +			    (if (< (- d2 d1) 350)
> +				(if (= w1 w2)
> +				    (format " (W%02d)" w1)
> +				  (format " (W%02d-W%02d)" w1 w2))
> +			      "")

If you're ready for further refactoring, the nested `if' above could be
turned into a nicer `cond'.

> +		    (let ((n 0) s)
> +		      (mapc (lambda (x)
> +			      (setq s (format "(%d)%s" (setq n (1+ n)) x))
> +			      (if (> (+ (current-column) (string-width s) 1) (frame-width))
> +				  (insert "\n                     "))
> +			      (insert " " s))
> +			    kwds))
> +		    (insert "\n"))

Same here: `mapc' + `lambda' = `dolist' to avoid funcall overhead. `s'
could be let-bound too.

All in all, the only requested change is `cl-defmacro' -> `defmacro'.
This is no blocker if you don't want/have time to do the refactoring.

Regards,

-- 
Nicolas Goaziou

  reply	other threads:[~2017-08-20  8:25 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-16  4:20 [PATCH] org-agenda: Add 'none setting for org-agenda-overriding-header Adam Porter
2017-08-17 14:25 ` Nicolas Goaziou
2017-08-17 19:57   ` Adam Porter
2017-08-18  9:07     ` Nicolas Goaziou
2017-08-20  2:47       ` Adam Porter
2017-08-20  8:25         ` Nicolas Goaziou [this message]
2017-08-23  1:41           ` Adam Porter
2017-08-23  2:32             ` Adam Porter
2017-08-23  8:48               ` Nicolas Goaziou
2017-09-02  2:41                 ` Adam Porter
2017-09-02  7:49                   ` Nicolas Goaziou
2017-09-03  1:44                     ` Adam Porter
2017-09-06 11:17                       ` Nicolas Goaziou
2017-09-06 23:00                         ` Adam Porter
2017-09-10 12:32                           ` Nicolas Goaziou
2017-09-06 23:06                         ` Adam Porter
2017-08-23  8:37             ` Nicolas Goaziou

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