GNU bug report logs - #70134
[PATCH] Show all date options when adding Gnus scores interactively

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From: Eric Abrahamsen <eric <at> ericabrahamsen.net>
To: Alex Bochannek <alex <at> bochannek.com>
Cc: "70134 <at> debbugs.gnu.org" <70134 <at> debbugs.gnu.org>, Jakub Ječmínek <kuba <at> kubajecminek.cz>, Eli Zaretskii <eliz <at> gnu.org>, "larsi <at> gnus.org" <larsi <at> gnus.org>, Richard Stallman <rms <at> gnu.org>
Subject: bug#70134: [PATCH] Show all date options when adding Gnus scores interactively
Date: Thu, 16 May 2024 07:15:14 -0700

Jakub Ječmínek via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs <at> gnu.org> writes:

> "Alex Bochannek" <alex <at> bochannek.com> writes:
>> I have done some more testing with a fresh build and the most recent
>> patch works as Jakub intends. I would like to suggest to add a change to
>> (gnus) Summary Score Commands to include the new match types. Otherwise,
>> I believe this patch is good to go.
>
> Thank you very much!
>
>> diff --git a/doc/misc/gnus.texi b/doc/misc/gnus.texi
>> index c5e4c885ccf..56f259db9a1 100644
>> --- a/doc/misc/gnus.texi
>> +++ b/doc/misc/gnus.texi
>> @@ -20093,6 +20093,9 @@ Summary Score Commands
>>  @item date
>>  @table @kbd
>>
>> +@item r
>> +Regexp matching.
>> +
>>  @item b
>>  Before date.
>>
>> @@ -20101,6 +20104,12 @@ Summary Score Commands
>>
>>  @item n
>>  This date.
>> +
>> +@item <
>> +Less than days.
>> +
>> +@item >
>> +Greater than days.
>>  @end table
>>
>>  @item number
>>
>>
>> --
>
> I've applied the patch and added co-authored-by message.
>
> From d69cf006f2e42da61714a179eb48a345a082fcf9 Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?Jakub=20Je=C4=8Dm=C3=ADnek?= <kuba <at> kubajecminek.cz>
> Date: Thu, 9 May 2024 20:33:58 +0200
> Subject: [PATCH] Show all date options when adding Gnus scores interactively
>
> * lisp/gnus/gnus-score.el (gnus-summary-increase-score): Rename
> 'char-to-type' variable to 'char-to-types' and bind all legal types
> for date header.
>
> * lisp/gnus/gnus-score.el (gnus-summary-score-entry): Provide better
> default values for each scoring type and cast 'match' to number only
> if necessary.
>
> Co-authored-by: Alex Bochannek <alex <at> bochannek.com>
> ---
>  doc/misc/gnus.texi      |  9 ++++++++
>  lisp/gnus/gnus-score.el | 46 ++++++++++++++++++++---------------------
>  lisp/gnus/gnus-util.el  |  2 +-
>  3 files changed, 33 insertions(+), 24 deletions(-)
>
> diff --git a/doc/misc/gnus.texi b/doc/misc/gnus.texi
> index c5e4c885ccf..56f259db9a1 100644
> --- a/doc/misc/gnus.texi
> +++ b/doc/misc/gnus.texi
> @@ -20093,6 +20093,9 @@ Summary Score Commands
>  @item date
>  @table @kbd
>  
> +@item r
> +Regexp matching.
> +
>  @item b
>  Before date.
>  
> @@ -20101,6 +20104,12 @@ Summary Score Commands
>  
>  @item n
>  This date.
> +
> +@item <
> +Less than days.
> +
> +@item >
> +Greater than days.
>  @end table
>  
>  @item number
> diff --git a/lisp/gnus/gnus-score.el b/lisp/gnus/gnus-score.el
> index 479b7496cf1..4e9e0083424 100644
> --- a/lisp/gnus/gnus-score.el
> +++ b/lisp/gnus/gnus-score.el
> @@ -593,18 +593,18 @@ gnus-summary-increase-score
>  	    (?d "date" nil nil date)
>  	    (?f "followup" nil nil string)
>  	    (?t "thread" "message-id" nil string)))
> -	 (char-to-type
> +	 (char-to-types
>  	  '((?s s "substring" string)
>  	    (?e e "exact string" string)
>  	    (?f f "fuzzy string" string)
> -	    (?r r "regexp string" string)
> +	    (?r r "regexp string" string date)
>  	    (?z s "substring" body-string)
>  	    (?p r "regexp string" body-string)
>  	    (?b before "before date" date)
>  	    (?a after "after date" date)
>  	    (?n at "this date" date)
> -	    (?< < "less than number" number)
> -	    (?> > "greater than number" number)
> +	    (?< < "less than number" number date)
> +	    (?> > "greater than number" number date)
>  	    (?= = "equal to number" number)))
>  	 (current-score-file gnus-current-score-file)
>  	 (char-to-perm
> @@ -652,10 +652,9 @@ gnus-summary-increase-score
>  	  (let ((legal-types
>  		 (delq nil
>  		       (mapcar (lambda (s)
> -				 (if (eq (nth 4 entry)
> -					 (nth 3 s))
> +				 (if (member (nth 4 entry) (nthcdr 3 s))
>  				     s nil))
> -			       char-to-type))))
> +			       char-to-types))))
>              (setq header-string
>                    (format "%s header `%s' with match type (%s?): "
>  			  (if increase "Increase" "Lower")
> @@ -894,12 +893,16 @@ gnus-summary-score-entry
>  			   header
>  			   (if (< score 0) "lower" "raise"))
>                     (cond ((numberp match) (int-to-string match))
> +                         ;; Provide better defaults if we're scoring on date header
>                           ((string= header "date")
> -                          (int-to-string
> -                           (-
> -                            (/ (car (time-convert (current-time) 1)) 86400)
> -                            (/ (car (time-convert (gnus-date-get-time match) 1))
> -                               86400))))
> +                          (if (or (eq type '<) (eq type '>))
> +                              ;; Determine the time difference in days between today
> +                              ;; and the article's date
> +                              (format-seconds "%d"
> +                                              (time-subtract
> +                                               (current-time)
> +                                               (gnus-date-get-time match)))
> +                            (gnus-date-iso8601 match)))
>                           (t match)))))
>  
>      ;; If this is an integer comparison, we transform from string to int.
> @@ -909,16 +912,13 @@ gnus-summary-score-entry
>        (set-text-properties 0 (length match) nil match))
>  
>      ;; Modify match and type for article age scoring.
> -    (if (string= "date" (nth 0 (assoc header gnus-header-index)))
> -	(let ((age (string-to-number match)))
> -	  (if (or (< age 0)
> -		  (string= "0" match))
> -	      (user-error "Article age must be a positive number"))
> -	  (setq match age
> -		type (cond ((eq type 'after)
> -			    '<)
> -			   ((eq type 'before)
> -			    '>)))))
> +    (when (and (string= header "date")
> +               (or (eq type '<) (eq type '>)))
> +      (let ((age (string-to-number match)))
> +        (if (or (< age 0)
> +                (string= "0" match))
> +            (user-error "Article age must be a positive number"))
> +        (setq match age)))
>  
>      (unless (eq date 'now)
>        ;; Add the score entry to the score file.
> @@ -1806,7 +1806,7 @@ gnus-score-date
>  	   ((eq type 'at)
>  	    (setq match-func 'string=
>  		  match (gnus-date-iso8601 (nth 0 kill))))
> -	   ((eq type 'regexp)
> +	   ((or (eq type 'regexp) (eq type 'r))
>  	    (setq match-func 'string-match
>  		  match (nth 0 kill)))
>  	   (t (error "Invalid match type: %s" type)))
> diff --git a/lisp/gnus/gnus-util.el b/lisp/gnus/gnus-util.el
> index 0b0a9bbfc1d..6097f517be0 100644
> --- a/lisp/gnus/gnus-util.el
> +++ b/lisp/gnus/gnus-util.el
> @@ -377,7 +377,7 @@ gnus-date-get-time
>    "Convert DATE string to Emacs time.
>  Cache the result as a text property stored in DATE."
>    ;; Either return the cached value...
> -  `(let ((d ,date))
> +  `(let ((d (copy-sequence ,date)))

My previous message about this macro still stands, though -- this change
would break other code's use of the macro as a "cache". Is there another
way to resolve the problem?

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