[COMMIT] Avoid byte compiler warnings, some needless consing, descr-text.el

APPROVE COMMIT NOTE: This patch has been committed. # HG changeset patch # User Aidan Kehoe <kehoea(a)parhasard.net&gt; # Date 1284647080 -3600 # Node ID 09f8ed0933c7d237cf1c42ac25a60b188a0ab222 # Parent 668c73e222fd7178d342124bc1f02c316855ec0e Avoid byte compiler warnings, some needless consing, descr-text.el lisp/ChangeLog addition: 2010-09-16 Aidan Kehoe <kehoea(a)parhasard.net&gt; * descr-text.el (unidata-initialize-unicodedata-database) (unidata-initialize-unihan-database, describe-char-unicode-data) (describe-char-unicode-data): Wrap calls to the database functions with (with-fboundp ...), avoiding byte compile warnings on builds without support for the database functions. (describe-char): (reduce #'max ...), not (apply #'max ...), no need to cons needlessly. (describe-char): Remove a redundant lambda wrapping #'extent-properties. (describe-char-unicode-data): Call #'nsubst when replacing "" with nil in the result of #'split-string, instead of consing inside mapcar. diff -r 668c73e222fd -r 09f8ed0933c7 lisp/ChangeLog --- a/lisp/ChangeLog Thu Sep 16 15:06:38 2010 +0100 +++ b/lisp/ChangeLog Thu Sep 16 15:24:40 2010 +0100 ＠＠ -1,3 +1,19 ＠＠ +2010-09-16 Aidan Kehoe <kehoea(a)parhasard.net&gt; + + * descr-text.el (unidata-initialize-unicodedata-database) + (unidata-initialize-unihan-database, describe-char-unicode-data) + (describe-char-unicode-data): + Wrap calls to the database functions with (with-fboundp ...), + avoiding byte compile warnings on builds without support for the + database functions. + (describe-char): (reduce #'max ...), not (apply #'max ...), no + need to cons needlessly. + (describe-char): Remove a redundant lambda wrapping + #'extent-properties. + (describe-char-unicode-data): Call #'nsubst when replacing "" with + nil in the result of #'split-string, instead of consing inside + mapcar. + 2010-09-16 Aidan Kehoe <kehoea(a)parhasard.net&gt; * x-faces.el (x-available-font-sizes): diff -r 668c73e222fd -r 09f8ed0933c7 lisp/descr-text.el --- a/lisp/descr-text.el Thu Sep 16 15:06:38 2010 +0100 +++ b/lisp/descr-text.el Thu Sep 16 15:24:40 2010 +0100 ＠＠ -457,98 +457,100 ＠＠ (check-argument-type #'file-readable-p unidata-file-name) (unless unidata-database-format (error 'unimplemented "No (non-SQL) DB support available")) - (let* ((database-format unidata-database-format) - (size (eighth (file-attributes unidata-file-name))) - (database-file-name - (unidata-generate-database-file-name unidata-file-name - size database-format)) - (database-handle (open-database database-file-name database-format - nil "rw+" #o644 'no-conversion-unix)) - (coding-system-for-read 'no-conversion-unix) - (buffer-size 32768) - (offset-start 0) - (offset-end buffer-size) - (range-information (make-range-table 'start-closed-end-closed)) - (range-staging (make-hash-table :test 'equal)) - (message "Initializing UnicodeData database cache: ") - (loop-count 1) - range-startinfo) - (with-temp-buffer + (with-fboundp '(open-database put-database close-database) + (let* ((database-format unidata-database-format) + (size (eighth (file-attributes unidata-file-name))) + (database-file-name + (unidata-generate-database-file-name unidata-file-name + size database-format)) + (database-handle (open-database database-file-name database-format + nil "rw+" #o644 + 'no-conversion-unix)) + (coding-system-for-read 'no-conversion-unix) + (buffer-size 32768) + (offset-start 0) + (offset-end buffer-size) + (range-information (make-range-table 'start-closed-end-closed)) + (range-staging (make-hash-table :test 'equal)) + (message "Initializing UnicodeData database cache: ") + (loop-count 1) + range-startinfo) + (with-temp-buffer + (progress-feedback-with-label 'describe-char-unicodedata-file + "%s" 0 message) + (while (progn + (delete-region (point-min) (point-max)) + (insert-file-contents unidata-file-name nil + offset-start offset-end) + ;; If we've reached the end of the data, pass nil back to + ;; the while loop test. + (not (= (point-min) (point-max)))) + + (when (= buffer-size (- (point-max) (point-min))) + ;; If we're in the body of the file, and there's a trailing + ;; incomplete end-line, delete it, and adjust offset-end + ;; appropriately. + (goto-char (point-max)) + (search-backward "\n") + (forward-char) + (delete-region (point) (point-max)) + (setq offset-end (+ offset-start (- (point) (point-min))))) + + (progress-feedback-with-label 'describe-char-unicodedata-file + "%s" (truncate + (* (/ offset-start size) 100)) + (concat message + (make-string + (mod loop-count 39) ?.))) + (incf loop-count) + (goto-char (point-min)) + (while (re-search-forward + #r"^\([0-9A-F]\{4,6\}\);\([^;]*\);.*$" nil t) + (cond + ((and (> (- (match-end 2) (match-beginning 2)) 7) + (equal (substring (match-string 2) -7) + " First>")) + ;; Start of a range. Save the start info in range-staging. + (puthash (substring (match-string 2) 0 -7) + (list (string-to-int (match-string 1) 16) + (+ offset-start (1- (match-beginning 0)))) + range-staging)) + ((and (> (- (match-end 2) (match-beginning 2)) 7) + (equal (substring (match-string 2) -6) + " Last>")) + ;; End of a range. Combine with the start info, save it to the + ;; range-information range table. + (setq range-startinfo + (gethash (substring (match-string 2) 0 -6) range-staging)) + (assert range-startinfo nil + "Unexpected order for range information.") + (put-range-table + (first range-startinfo) + (string-to-int (match-string 1) 16) + (list (second range-startinfo) + (+ offset-start (1- (match-end 0)))) + range-information) + (remhash (substring (match-string 2) 0 -6) range-staging)) + (t + ;; Normal character. Save the associated information in the + ;; database directly. + (put-database (match-string 1) + (format "(%d %d)" + (+ offset-start (1- (match-beginning 0))) + (+ offset-start (1- (match-end 0)))) + database-handle)))) + (goto-char (point-min)) + (setq offset-start offset-end + offset-end (+ buffer-size offset-end)))) + ;; Save the range information as such in the database. + (put-database "range-information" + (let ((print-readably t)) + (prin1-to-string range-information)) + database-handle) + (close-database database-handle) (progress-feedback-with-label 'describe-char-unicodedata-file - "%s" 0 message) - (while (progn - (delete-region (point-min) (point-max)) - (insert-file-contents unidata-file-name nil - offset-start offset-end) - ;; If we've reached the end of the data, pass nil back to - ;; the while loop test. - (not (= (point-min) (point-max)))) - - (when (= buffer-size (- (point-max) (point-min))) - ;; If we're in the body of the file, and there's a trailing - ;; incomplete end-line, delete it, and adjust offset-end - ;; appropriately. - (goto-char (point-max)) - (search-backward "\n") - (forward-char) - (delete-region (point) (point-max)) - (setq offset-end (+ offset-start (- (point) (point-min))))) - - (progress-feedback-with-label 'describe-char-unicodedata-file - "%s" (truncate - (* (/ offset-start size) 100)) - (concat message - (make-string - (mod loop-count 39) ?.))) - (incf loop-count) - (goto-char (point-min)) - (while (re-search-forward - #r"^\([0-9A-F]\{4,6\}\);\([^;]*\);.*$" nil t) - (cond - ((and (> (- (match-end 2) (match-beginning 2)) 7) - (equal (substring (match-string 2) -7) - " First>")) - ;; Start of a range. Save the start info in range-staging. - (puthash (substring (match-string 2) 0 -7) - (list (string-to-int (match-string 1) 16) - (+ offset-start (1- (match-beginning 0)))) - range-staging)) - ((and (> (- (match-end 2) (match-beginning 2)) 7) - (equal (substring (match-string 2) -6) - " Last>")) - ;; End of a range. Combine with the start info, save it to the - ;; range-information range table. - (setq range-startinfo - (gethash (substring (match-string 2) 0 -6) range-staging)) - (assert range-startinfo nil - "Unexpected order for range information.") - (put-range-table - (first range-startinfo) - (string-to-int (match-string 1) 16) - (list (second range-startinfo) - (+ offset-start (1- (match-end 0)))) - range-information) - (remhash (substring (match-string 2) 0 -6) range-staging)) - (t - ;; Normal character. Save the associated information in the - ;; database directly. - (put-database (match-string 1) - (format "(%d %d)" - (+ offset-start (1- (match-beginning 0))) - (+ offset-start (1- (match-end 0)))) - database-handle)))) - (goto-char (point-min)) - (setq offset-start offset-end - offset-end (+ buffer-size offset-end)))) - ;; Save the range information as such in the database. - (put-database "range-information" - (let ((print-readably t)) - (prin1-to-string range-information)) - database-handle) - (close-database database-handle) - (progress-feedback-with-label 'describe-char-unicodedata-file - "%s" 100 message) - database-file-name)) + "%s" 100 message) + database-file-name))) (defun unidata-initialize-unihan-database (unihan-file-name) "Init the berkeley or gdbm lookup table for UNIHAN-FILE-NAME. ＠＠ -562,114 +564,115 ＠＠ (check-argument-type #'file-readable-p unihan-file-name) (unless unidata-database-format (error 'unimplemented "No (non-SQL) DB support available")) - (let* ((database-format unidata-database-format) - (size (eighth (file-attributes unihan-file-name))) - (database-file-name - (unidata-generate-database-file-name unihan-file-name - size database-format)) - (database-handle (open-database database-file-name database-format - nil "rw+" #o644 'no-conversion-unix)) - (coding-system-for-read 'no-conversion-unix) - (buffer-size 65536) - (offset-start 0) - (offset-end buffer-size) - (message "Initializing Unihan database cache: ") - (loop-count 1) - trailing-unicode leading-unicode character-start character-end) - (with-temp-buffer + (with-fboundp '(open-database put-database close-database) + (let* ((database-format unidata-database-format) + (size (eighth (file-attributes unihan-file-name))) + (database-file-name + (unidata-generate-database-file-name unihan-file-name + size database-format)) + (database-handle (open-database database-file-name database-format + nil "rw+" #o644 + 'no-conversion-unix)) + (coding-system-for-read 'no-conversion-unix) + (buffer-size 65536) + (offset-start 0) + (offset-end buffer-size) + (message "Initializing Unihan database cache: ") + (loop-count 1) + trailing-unicode leading-unicode character-start character-end) + (with-temp-buffer + (progress-feedback-with-label 'describe-char-unihan-file + "%s" 0 message) + (while (progn + (delete-region (point-min) (point-max)) + (insert-file-contents unihan-file-name nil + offset-start offset-end) + ;; If we've reached the end of the data, return nil to the + ;; while. + (not (= (point-min) (point-max)))) + + (incf loop-count) + (progress-feedback-with-label 'describe-char-unihan-file + "%s" (truncate + (* (/ offset-start size) 100)) + (concat message + (make-string + (mod loop-count 44) ?.))) + (block 'dealing-with-chars + (when (= buffer-size (- (point-max) (point-min))) + ;; If we're in the body of the file, we need to delete the + ;; character info for the last character, and set offset-end + ;; appropriately. Otherwise, we may not be able to pick where + ;; the actual description of a character ends and begins. + ;; + ;; This breaks if any single Unihan character description is + ;; greater than the buffer size in length. + (goto-char (point-max)) + (beginning-of-line) + + (when (< (- (point-max) (point)) (eval-when-compile + (length "U+ABCDEF\t"))) + ;; If the character ID of the last line may have been cut off, + ;; we need to delete all of that line here. + (delete-region (point) (point-max)) + (forward-line -1)) + + (when (looking-at "^\\(U\\+[0-9A-F]\\{4,6\\}\\)\t") + (setq trailing-unicode (match-string 1) + trailing-unicode + (format "^%s\t" (regexp-quote trailing-unicode))) + + (end-of-line) + + ;; Go back until we hit a line that doesn't start with this + ;; character info. + (while (re-search-backward trailing-unicode nil t)) + + ;; The re-search-backward failed, so point is still at the end + ;; of the last match. Move to its beginning. + (beginning-of-line) + (delete-region (point) (point-max)) + (setq offset-end (+ offset-start (- (point) (point-min)))))) + (goto-char (point-min)) + (while t + (when (= (point) (point-max)) + ;; We're at the end of this part of the file. + (return-from 'dealing-with-chars)) + + (unless (re-search-forward "^\\(U\\+[0-9A-F]\\{4,6\\}\\)\t" + nil t) + ;; We're probably in the comments at the start of the + ;; file. No need to look for character info. + (return-from 'dealing-with-chars)) + + ;; Store where the character started. + (beginning-of-line) + (setq character-start (point)) + + (setq leading-unicode + (format "^%s\t" (regexp-quote (match-string 1)))) + + ;; Loop until we get past this entry. + (while (re-search-forward leading-unicode nil t)) + + ;; Now, store the information. + (setq leading-unicode + (string-to-number (substring leading-unicode 3) 16) + leading-unicode (format "%04X" leading-unicode) + character-end (prog2 (end-of-line) (point))) + (put-database leading-unicode + (format "(%d %d)" + (+ offset-start (1- character-start)) + (+ offset-start (1- character-end))) + database-handle) + (forward-line))) + (setq offset-start offset-end + offset-end (+ buffer-size offset-end)))) + (close-database database-handle) (progress-feedback-with-label 'describe-char-unihan-file - "%s" 0 message) - (while (progn - (delete-region (point-min) (point-max)) - (insert-file-contents unihan-file-name nil - offset-start offset-end) - ;; If we've reached the end of the data, return nil to the - ;; while. - (not (= (point-min) (point-max)))) - - (incf loop-count) - (progress-feedback-with-label 'describe-char-unihan-file - "%s" (truncate - (* (/ offset-start size) 100)) - (concat message - (make-string - (mod loop-count 44) ?.))) - (block 'dealing-with-chars - (when (= buffer-size (- (point-max) (point-min))) - ;; If we're in the body of the file, we need to delete the - ;; character info for the last character, and set offset-end - ;; appropriately. Otherwise, we may not be able to pick where - ;; the actual description of a character ends and - ;; begins. - ;; - ;; This breaks if any single Unihan character description is - ;; greater than the buffer size in length. - (goto-char (point-max)) - (beginning-of-line) - - (when (< (- (point-max) (point)) (eval-when-compile - (length "U+ABCDEF\t"))) - ;; If the character ID of the last line may have been cut off, - ;; we need to delete all of that line here. - (delete-region (point) (point-max)) - (forward-line -1)) - - (when (looking-at "^\\(U\\+[0-9A-F]\\{4,6\\}\\)\t") - (setq trailing-unicode (match-string 1) - trailing-unicode - (format "^%s\t" (regexp-quote trailing-unicode))) - - (end-of-line) - - ;; Go back until we hit a line that doesn't start with this - ;; character info. - (while (re-search-backward trailing-unicode nil t)) - - ;; The re-search-backward failed, so point is still at the end - ;; of the last match. Move to its beginning. - (beginning-of-line) - (delete-region (point) (point-max)) - (setq offset-end (+ offset-start (- (point) (point-min)))))) - (goto-char (point-min)) - (while t - (when (= (point) (point-max)) - ;; We're at the end of this part of the file. - (return-from 'dealing-with-chars)) - - (unless (re-search-forward "^\\(U\\+[0-9A-F]\\{4,6\\}\\)\t" - nil t) - ;; We're probably in the comments at the start of the file. No - ;; need to look for character info. - (return-from 'dealing-with-chars)) - - ;; Store where the character started. - (beginning-of-line) - (setq character-start (point)) - - (setq leading-unicode - (format "^%s\t" (regexp-quote (match-string 1)))) - - ;; Loop until we get past this entry. - (while (re-search-forward leading-unicode nil t)) - - ;; Now, store the information. - (setq leading-unicode - (string-to-number (substring leading-unicode 3) 16) - leading-unicode (format "%04X" leading-unicode) - character-end (prog2 (end-of-line) (point))) - (put-database leading-unicode - (format "(%d %d)" - (+ offset-start (1- character-start)) - (+ offset-start (1- character-end))) - database-handle) - (forward-line))) - (setq offset-start offset-end - offset-end (+ buffer-size offset-end)))) - (close-database database-handle) - (progress-feedback-with-label 'describe-char-unihan-file - "%s" 100 - message) - database-file-name)) + "%s" 100 + message) + database-file-name))) ;; End XEmacs additions. (defun describe-char-unicode-data (char) ＠＠ -688,52 +691,55 ＠＠ (with-temp-buffer (let ((coding-system-for-read coding-system-for-read) database-handle key lookup) - (if (and describe-char-use-cache - (prog1 - (setq database-handle - (open-database - (unidata-generate-database-file-name - describe-char-unicodedata-file - (eighth (file-attributes - describe-char-unicodedata-file)) - unidata-database-format) - unidata-database-format - nil "r" - #o644 'no-conversion-unix)) - (unless database-handle - (warn "Could not open %s as a %s database" - (unidata-generate-database-file-name - describe-char-unicodedata-file - (eighth (file-attributes - describe-char-unicodedata-file)) - unidata-database-format) - unidata-database-format)))) - (progn - ;; Use the database info. - (setq coding-system-for-read 'no-conversion-unix - key (format "%04X" char) - lookup (get-database key database-handle)) - (if lookup - ;; Okay, we have information on that character in particular. - (progn (setq lookup (read lookup)) - (insert-file-contents describe-char-unicodedata-file - nil (first lookup) - (second lookup))) - ;; No information on that character in particular. Do we - ;; have range information? If so, load and check for our - ;; desired character. - (setq lookup (get-database "range-information" database-handle) - lookup (if lookup (read lookup)) - lookup (if lookup (get-range-table char lookup))) - (when lookup - (insert-file-contents describe-char-unicodedata-file nil - (first lookup) (second lookup)))) - (close-database database-handle)) - ;; Otherwise, insert the whole file (the FSF approach). - (set-buffer (get-buffer-create " *Unicode Data*")) - (when (zerop (buffer-size)) - ;; Don't use -literally in case of DOS line endings. - (insert-file-contents describe-char-unicodedata-file)))) + (with-fboundp '(open-database get-database close-database) + (if (and describe-char-use-cache + (prog1 + (setq database-handle + (open-database + (unidata-generate-database-file-name + describe-char-unicodedata-file + (eighth (file-attributes + describe-char-unicodedata-file)) + unidata-database-format) + unidata-database-format + nil "r" + #o644 'no-conversion-unix)) + (unless database-handle + (warn "Could not open %s as a %s database" + (unidata-generate-database-file-name + describe-char-unicodedata-file + (eighth (file-attributes + describe-char-unicodedata-file)) + unidata-database-format) + unidata-database-format)))) + (progn + ;; Use the database info. + (setq coding-system-for-read 'no-conversion-unix + key (format "%04X" char) + lookup (get-database key database-handle)) + (if lookup + ;; Okay, we have information on that character in + ;; particular. + (progn (setq lookup (read lookup)) + (insert-file-contents describe-char-unicodedata-file + nil (first lookup) + (second lookup))) + ;; No information on that character in particular. Do we + ;; have range information? If so, load and check for our + ;; desired character. + (setq lookup (get-database "range-information" + database-handle) + lookup (if lookup (read lookup)) + lookup (if lookup (get-range-table char lookup))) + (when lookup + (insert-file-contents describe-char-unicodedata-file nil + (first lookup) (second lookup)))) + (close-database database-handle)) + ;; Otherwise, insert the whole file (the FSF approach). + (set-buffer (get-buffer-create " *Unicode Data*")) + (when (zerop (buffer-size)) + ;; Don't use -literally in case of DOS line endings. + (insert-file-contents describe-char-unicodedata-file))))) (goto-char (point-min)) (let ((hex (format "%04X" char)) found first last unihan-match unihan-info unihan-database-handle ＠＠ -755,14 +761,11 ＠＠ last (<= char last)) (setq found t))) (if found - (let ((fields (mapcar (lambda (elt) - (if (> (length elt) 0) - elt)) - (cdr (split-string - (buffer-substring - (line-beginning-position) - (line-end-position)) - ";"))))) + (let ((fields (cdr (nsubst nil "" (split-string + (buffer-substring + (line-beginning-position) + (line-end-position)) ";") + :test 'equal)))) ;; The length depends on whether the last field was empty. (unless (or (= 13 (length fields)) (= 14 (length fields))) ＠＠ -919,45 +922,46 ＠＠ (if (and (> (length (nth 0 fields)) 13) (equal "<CJK Ideograph" (substring (nth 0 fields) 0 14))) - (if (and describe-char-unihan-file - (setq unihan-database-handle - (open-database - (unidata-generate-database-file-name - describe-char-unihan-file - (eighth (file-attributes - describe-char-unihan-file)) - unidata-database-format) - unidata-database-format - nil "r" #o644 'no-conversion-unix)) - (setq unihan-match - (get-database (format "%04X" char) - unihan-database-handle) - unihan-match - (and unihan-match (read unihan-match)))) - (with-temp-buffer - (insert-file-contents describe-char-unihan-file - nil (first unihan-match) - (second unihan-match)) - (goto-char (point-min)) - (while (re-search-forward - "^U\\+[0-9A-F]+\t\\(k[^\t]+\\)\t\\(.*\\)$" - nil t) - (push - (list - (or (gethash - (match-string 1) - describe-char-unihan-field-descriptions) - (match-string 1)) - (decode-coding-string (match-string 2) 'utf-8)) - unihan-info)) - (close-database unihan-database-handle) - unihan-info) + (with-fboundp '(open-database get-database close-database) + (if (and describe-char-unihan-file + (setq unihan-database-handle + (open-database + (unidata-generate-database-file-name + describe-char-unihan-file + (eighth (file-attributes + describe-char-unihan-file)) + unidata-database-format) + unidata-database-format + nil "r" #o644 'no-conversion-unix)) + (setq unihan-match + (get-database (format "%04X" char) + unihan-database-handle) + unihan-match + (and unihan-match (read unihan-match)))) + (with-temp-buffer + (insert-file-contents describe-char-unihan-file + nil (first unihan-match) + (second unihan-match)) + (goto-char (point-min)) + (while (re-search-forward + "^U\\+[0-9A-F]+\t\\(k[^\t]+\\)\t\\(.*\\)$" + nil t) + (push + (list + (or (gethash + (match-string 1) + describe-char-unihan-field-descriptions) + (match-string 1)) + (decode-coding-string (match-string 2) 'utf-8)) + unihan-info)) + (close-database unihan-database-handle) + unihan-info) ;; It's a Han character, but Unihan.txt is not ;; available. Tell the user. (list '("Unihan" "No Unihan information available; is \ -`describe-char-unihan-file' set, and its cache initialized?"))))))))))) +`describe-char-unihan-file' set, and its cache initialized?")))))))))))) ;; Return information about how CHAR is displayed at the buffer ;; position POS. If the selected frame is on a graphic display, ＠＠ -1030,8 +1034,7 ＠＠ (specifier-instance current-display-table (selected-window))) (disp-table-entry (and display-table (get-display-table char display-table))) - (extents (mapcar #'(lambda (o) (extent-properties o)) - (extents-at pos))) + (extents (mapcar #'extent-properties (extents-at pos))) (char-description (single-key-description char)) (text-props-desc (let ((tmp-buf (generate-new-buffer " *text-props*"))) ＠＠ -1202,9 +1205,9 ＠＠ (describe-char-unicode-data unicode))) (if unicodedata (cons (list "Unicode data" " ") unicodedata))))) - (setq max-width (apply #'max (mapcar #'(lambda (x) - (if (cadr x) (length (car x)) 0)) - item-list))) + (setq max-width + (reduce #'max (remove-if-not #'cadr item-list) :initial-value 0 +:key #'(lambda (object) (length (car object))))) (when (and unicodedata (> max-width max-unicode-description-width)) (setq max-width max-unicode-description-width) (with-temp-buffer -- “Apart from the nine-banded armadillo, man is the only natural host of Mycobacterium leprae, although it can be grown in the footpads of mice.” -- Kumar & Clark, Clinical Medicine, summarising improbable leprosy research _______________________________________________ XEmacs-Patches mailing list XEmacs-Patches(a)xemacs.org http://calypso.tux.org/mailman/listinfo/xemacs-patches