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37 lines
1.4 KiB
EmacsLisp
37 lines
1.4 KiB
EmacsLisp
(defun man-wrapper-find-pages ()
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(let* ((manpath (getenv "MANPATH"))
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(directories (split-string manpath ":" t))
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(that-exist (seq-filter 'file-exists-p directories))
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(files (mapcar (lambda (d)
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(directory-files-recursively d ".*" nil))
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that-exist))
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(flattened (flatten-list files))
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(pages (mapcar 'file-name-nondirectory flattened))
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(without-second-ext (mapcar (lambda (p)
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(let ((extension (file-name-extension p)))
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(if (string-match-p "^[0-9+]$" extension)
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p
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(file-name-sans-extension p))))
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pages)))
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without-second-ext))
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(defun man-wrapper-locate-page (page)
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(with-temp-buffer
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(let ((exit-code (call-process "man" nil (current-buffer) nil "--where" page)))
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(when exit-code
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(let* ((output (buffer-string))
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(trimmed (string-trim-right output "\n")))
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trimmed)))))
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(defun man-wrapper (orig &rest args)
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(interactive)
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(let* ((arg (if args
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(nth 0 args)
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(completing-read "Select page: " (man-wrapper-find-pages))))
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(page (man-wrapper-locate-page arg)))
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(funcall orig page)))
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(advice-add 'man :around 'man-wrapper)
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(provide 'man-wrapper)
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