X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?p=elpher.git;a=blobdiff_plain;f=elpher.el;h=6e885e4fd6cee567b2de65d9d371af64a063f8a6;hp=09fdb6fc556cfe8fb35599a70675d81aaf2d499a;hb=5673f22d815514387a029844954c8ec4793f61e0;hpb=345b1efd480972459be1e569b242647d03d808db diff --git a/elpher.el b/elpher.el index 09fdb6f..6e885e4 100644 --- a/elpher.el +++ b/elpher.el @@ -4,7 +4,7 @@ ;; Author: Tim Vaughan ;; Created: 11 April 2019 -;; Version: 2.7.8 +;; Version: 2.7.9 ;; Keywords: comm gopher ;; Homepage: http://thelambdalab.xyz/elpher ;; Package-Requires: ((emacs "26")) @@ -70,7 +70,7 @@ ;;; Global constants ;; -(defconst elpher-version "2.7.8" +(defconst elpher-version "2.7.9" "Current version of elpher.") (defconst elpher-margin-width 6 @@ -148,6 +148,15 @@ The actual width used is the minimum of this value and the window width at the time when the text is rendered." :type '(integer)) +(defcustom elpher-gemini-link-string "→ " + "Specify the string used to indicate links when rendering gemini maps. +May be empty." + :type '(string)) + +(defcustom elpher-gemini-bullet-string "•" + "Specify the string used for bullets when rendering gemini maps." + :type '(string)) + (defcustom elpher-bookmarks-file (locate-user-emacs-file "elpher-bookmarks") "Specify the name of the file where elpher bookmarks will be saved." :type '(file)) @@ -682,12 +691,19 @@ once they are retrieved from the gopher server." (insert " ")) (insert (make-string elpher-margin-width ?\s)))) -(defun elpher-page-button-help (page) - "Return a string containing the help text for a button corresponding to PAGE." - (let ((address (elpher-page-address page))) - (format "mouse-1, RET: open '%s'" (if (elpher-address-special-p address) - address - (elpher-address-to-url address))))) +(defun elpher--page-button-help (_window buffer pos) + "Function called by Emacs to generate mouse-over text. +The arguments specify the BUFFER and the POS within the buffer of the item +for which help is required. The function returns the help to be +displayed. The _WINDOW argument is currently unused." + (with-current-buffer buffer + (let ((button (button-at pos))) + (when button + (let* ((page (button-get button 'elpher-page)) + (address (elpher-page-address page))) + (format "mouse-1, RET: open '%s'" (if (elpher-address-special-p address) + address + (url-recreate-url address)))))))) (defun elpher-insert-index-record (display-string &optional address) "Function to insert an index record into the current buffer. @@ -707,7 +723,7 @@ If ADDRESS is not supplied or nil the record is rendered as an 'elpher-page page 'action #'elpher-click-link 'follow-link t - 'help-echo (elpher-page-button-help page))) + 'help-echo #'elpher--page-button-help)) (pcase type ('nil ;; Information (elpher-insert-margin) @@ -753,7 +769,7 @@ If ADDRESS is not supplied or nil the record is rendered as an 'elpher-page page 'action #'elpher-click-link 'follow-link t - 'help-echo (elpher-page-button-help page) + 'help-echo #'elpher--page-button-help 'face 'button))) (buffer-string))) @@ -883,6 +899,7 @@ to ADDRESS." (error "Cannot establish gemini connection: GnuTLS not available") (unless (< (elpher-address-port address) 65536) (error "Cannot establish gemini connection: port number > 65536")) + (defvar gnutls-verify-error) (condition-case nil (let* ((kill-buffer-query-functions nil) (gnutls-verify-error nil) ; We use the NSM for verification @@ -1120,7 +1137,7 @@ For instance, the filename /a/b/../c/./d will reduce to /a/c/d" (type (if address (elpher-address-type address) nil)) (type-map-entry (cdr (assoc type elpher-type-map)))) (when display-string - (insert "→ ") + (insert elpher-gemini-link-string) (if type-map-entry (let* ((face (elt type-map-entry 3)) (filtered-display-string (ansi-color-filter-apply display-string)) @@ -1130,7 +1147,7 @@ For instance, the filename /a/b/../c/./d will reduce to /a/c/d" 'elpher-page page 'action #'elpher-click-link 'follow-link t - 'help-echo (elpher-page-button-help page))) + 'help-echo #'elpher--page-button-help)) (insert (propertize display-string 'face 'elpher-unknown))) (insert "\n")))) @@ -1155,12 +1172,18 @@ by HEADER-LINE." "Insert a plain non-preformatted TEXT-LINE into a text/gemini document. This function uses Emacs' auto-fill to wrap text sensibly to a maximum width defined by elpher-gemini-max-fill-width." - (insert (elpher-process-text-for-display text-line)) - (let* ((prefix-end-idx (string-match "[^ \t*]" text-line)) - (fill-prefix (if prefix-end-idx - (let ((raw-prefix (substring text-line 0 prefix-end-idx))) - (replace-regexp-in-string "\*" " " raw-prefix)) + (string-match "\\(^[ \t]*\\)\\(\*[ \t]\\)?" text-line) + (let* ((processed-text-line (if (match-string 2 text-line) + (concat + (replace-regexp-in-string "\*" + elpher-gemini-bullet-string + (match-string 0 text-line)) + (substring text-line (match-end 0))) + text-line)) + (fill-prefix (if (match-string 1 text-line) + (replace-regexp-in-string "\*" " " (match-string 0 text-line)) nil))) + (insert (elpher-process-text-for-display processed-text-line)) (newline))) (defun elpher-render-gemini-map (data _parameters) @@ -1193,7 +1216,10 @@ width defined by elpher-gemini-max-fill-width." ;; Finger page connection (defun elpher-get-finger-page (renderer &optional force-ipv4) - "Opens a finger connection to the current page address and renders it using RENDERER." + "Opens a finger connection to the current page address. +The result is rendered using RENDERER. When the optional argument +FORCE-IPV4 is non-nil, the IPv4 address returned by a DNS lookup will +be used explicitly in making the connection." (let* ((address (elpher-page-address elpher-current-page)) (content (elpher-get-cached-content address))) (if (and content (funcall renderer nil)) @@ -1238,7 +1264,7 @@ width defined by elpher-gemini-max-fill-width." (cons string selector-string-parts)))) (set-process-sentinel proc (lambda (_proc event) - (condition-case the-error + (condition-case _the-error (cond ((string-prefix-p "deleted" event)) ((string-prefix-p "open" event) @@ -1306,7 +1332,7 @@ width defined by elpher-gemini-max-fill-width." " - TAB/Shift-TAB: next/prev item on current page\n" " - RET/mouse-1: open item under cursor\n" " - m: select an item on current page by name (autocompletes)\n" - " - u/mouse-3: return to previous page\n" + " - u/mouse-3/U: return to previous page or to the start page\n" " - o/O: visit different selector or the root menu of the current server\n" " - g: go to a particular address (gopher, gemini, finger)\n" " - d/D: download item under cursor or current page\n" @@ -1535,6 +1561,15 @@ When run interactively HOST-OR-URL is read from the minibuffer." (interactive) (elpher-visit-previous-page)) +(defun elpher-back-to-start () + "Go all the way back to the start page." + (interactive) + (setq elpher-current-page nil) + (setq elpher-history nil) + (let ((start-page (elpher-make-page "Elpher Start Page" + (elpher-make-special-address 'start)))) + (elpher-visit-page start-page))) + (defun elpher-download () "Download the link at point." (interactive) @@ -1724,6 +1759,7 @@ When run interactively HOST-OR-URL is read from the minibuffer." (define-key map (kbd "") 'elpher-prev-link) (define-key map (kbd "C-M-i") 'elpher-prev-link) (define-key map (kbd "u") 'elpher-back) + (define-key map (kbd "U") 'elpher-back-to-start) (define-key map [mouse-3] 'elpher-back) (define-key map (kbd "O") 'elpher-root-dir) (define-key map (kbd "g") 'elpher-go) @@ -1751,6 +1787,7 @@ When run interactively HOST-OR-URL is read from the minibuffer." (kbd "C-") 'elpher-follow-current-link (kbd "C-t") 'elpher-back (kbd "u") 'elpher-back + (kbd "U") 'elpher-back-to-start [mouse-3] 'elpher-back (kbd "g") 'elpher-go (kbd "o") 'elpher-go-current