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; Improve documentation of ls-lisp.el

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* lisp/ls-lisp.el (ls-lisp-format-time-list)
(ls-lisp-use-localized-time-format, ls-lisp-format-time): Doc
fixes.
This commit is contained in:
Eli Zaretskii 2025-05-11 14:42:51 +03:00
parent 2d5f243470
commit e32bb816ad
1 changed files with 14 additions and 5 deletions
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19
lisp/ls-lisp.el
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@ -208,10 +208,15 @@ Otherwise they are treated as Emacs regexps (for backward compatibility)."
'("%b %e %H:%M"
"%b %e %Y")
"List of `format-time-string' specs to display file time stamps.
These specs are used ONLY if a valid locale can not be determined.
These specs are used ONLY if a valid locale can not be determined,
or if the locale is \"C\" or \"POSIX\". If a valid non-\"C\" locale
can be determined, file time stamps are displayed using hardcoded
formats \"%m-%d %H:%M\" for new files and \"%Y-%m-%d\" for old files.
If `ls-lisp-use-localized-time-format' is non-nil, these specs are used
regardless of whether the locale can be determined.
If `ls-lisp-use-localized-time-format' is non-nil, the specs specified
by this option are used regardless of whether the locale can be determined.
The locale is determined by `ls-lisp-format-time', which see.
Syntax: (EARLY-TIME-FORMAT OLD-TIME-FORMAT)
@ -228,7 +233,7 @@ current year. The OLD-TIME-FORMAT is used for older files. To use ISO
(defcustom ls-lisp-use-localized-time-format nil
"Non-nil means to always use `ls-lisp-format-time-list' for time stamps.
This applies even if a valid locale is specified.
This applies even if a valid locale is determined by `ls-lisp-format-time'.
WARNING: Using localized date/time format might cause Dired columns
to fail to line up, e.g. if month names are not all of the same length."
@ -827,7 +832,11 @@ Return nil if no time switch found."
"Format time for file with attributes FILE-ATTR according to TIME-INDEX.
Use the same method as ls to decide whether to show time-of-day or year,
depending on distance between file date and the current time.
All ls time options, namely c, t and u, are handled."
All ls time options, namely c, t and u, are handled.
This function determines as side effect the locale relevant for
displaying times, by using `system-time-locale' if non-nil, and
falling back to environment variables LC_ALL, LC_TIME, and LANG."
(let* ((time (nth (or time-index 5) file-attr)) ; default is last modtime
(diff (time-subtract time nil))
;; Consider a time to be recent if it is within the past six