diff options
Diffstat (limited to 'lisp/ansi-color.el')
| -rw-r--r-- | lisp/ansi-color.el | 696 |
1 files changed, 541 insertions, 155 deletions
diff --git a/lisp/ansi-color.el b/lisp/ansi-color.el index 79dc821ea19..c962cbd4780 100644 --- a/lisp/ansi-color.el +++ b/lisp/ansi-color.el @@ -43,7 +43,7 @@ ;; The "Graphic Rendition Combination Mode (GRCM)" implemented is ;; "cumulative mode" as defined in section 7.2.8. Cumulative mode ;; means that whenever possible, SGR control sequences are combined -;; (ie. blue and bold). +;; (i.e. blue and bold). ;; The basic functions are: ;; @@ -90,53 +90,168 @@ as a PDF file." :version "21.1" :group 'processes) +(defface ansi-color-bold + '((t :inherit bold)) + "Face used to render bold text." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-faint + '((t :weight light)) + "Face used to render faint text." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-italic + '((t :inherit italic)) + "Face used to render italic text." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-underline + '((t :inherit underline)) + "Face used to render underlined text." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-slow-blink + '((t :box (:line-width -1))) + "Face used to render slowly blinking text." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-fast-blink + '((t :box (:line-width -1))) + "Face used to render rapidly blinking text." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-inverse + '((t :inverse-video t)) + "Face used to render inverted video text." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-black + '((t :foreground "black" :background "black")) + "Face used to render black color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-red + '((t :foreground "red3" :background "red3")) + "Face used to render red color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-green + '((t :foreground "green3" :background "green3")) + "Face used to render green color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-yellow + '((t :foreground "yellow3" :background "yellow3")) + "Face used to render yellow color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-blue + '((t :foreground "blue2" :background "blue2")) + "Face used to render blue color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-magenta + '((t :foreground "magenta3" :background "magenta3")) + "Face used to render magenta color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-cyan + '((t :foreground "cyan3" :background "cyan3")) + "Face used to render cyan color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-white + '((t :foreground "grey90" :background "gray90")) + "Face used to render white color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-bright-black + '((t :foreground "gray30" :background "gray30")) + "Face used to render bright black color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-bright-red + '((t :foreground "red2" :background "red2")) + "Face used to render bright red color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-bright-green + '((t :foreground "green2" :background "green2")) + "Face used to render bright green color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-bright-yellow + '((t :foreground "yellow2" :background "yellow2")) + "Face used to render bright yellow color code." + :group 'ansi-colors) + +(defface ansi-color-bright-blue + '((t :foreground "blue1" :background "blue1")) + "Face used to render bright blue color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-bright-magenta + '((t :foreground "magenta2" :background "magenta2")) + "Face used to render bright magenta color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-bright-cyan + '((t :foreground "cyan2" :background "cyan2")) + "Face used to render bright cyan color code." + :group 'ansi-colors + :version "28.1") + +(defface ansi-color-bright-white + '((t :foreground "white" :background "white")) + "Face used to render bright white color code." + :group 'ansi-colors + :version "28.1") + (defcustom ansi-color-faces-vector [default bold default italic underline success warning error] "Faces used for SGR control sequences determining a face. This vector holds the faces used for SGR control sequence parameters 0 to 7. -Parameter Description Face used by default - 0 default default - 1 bold bold - 2 faint default - 3 italic italic - 4 underlined underline - 5 slowly blinking success - 6 rapidly blinking warning - 7 negative image error - -Note that the symbol `default' is special: It will not be combined -with the current face. - -This vector is used by `ansi-color-make-color-map' to create a color -map. This color map is stored in the variable `ansi-color-map'." +This variable is obsolete. To customize the display of faces used by +ansi-color, change 'ansi-color-FACE', e.g. `ansi-color-bold'. To +customize the actual faces used (e.g. to temporarily display SGR +control sequences differently), use `ansi-color-basic-faces-vector'." :type '(vector face face face face face face face face) - :set 'ansi-color-map-update - :initialize 'custom-initialize-default :group 'ansi-colors) +(make-obsolete-variable 'ansi-color-faces-vector 'ansi-color-basic-faces-vector + "28.1") (defcustom ansi-color-names-vector ["black" "red3" "green3" "yellow3" "blue2" "magenta3" "cyan3" "gray90"] "Colors used for SGR control sequences determining a color. -This vector holds the colors used for SGR control sequences parameters +This vector holds the colors used for SGR control sequence parameters 30 to 37 (foreground colors) and 40 to 47 (background colors). -Parameter Color - 30 40 black - 31 41 red - 32 42 green - 33 43 yellow - 34 44 blue - 35 45 magenta - 36 46 cyan - 37 47 white - -This vector is used by `ansi-color-make-color-map' to create a color -map. This color map is stored in the variable `ansi-color-map'. - -Each element may also be a cons cell where the car and cdr specify the -foreground and background colors, respectively." +This variable is obsolete. To customize the display of colors used by +ansi-color, change 'ansi-color-COLOR', e.g. `ansi-color-red'. To +customize the actual faces used (e.g. to temporarily display SGR +control sequences differently), use `ansi-color-normal-colors-vector'." :type '(vector (choice color (cons color color)) (choice color (cons color color)) (choice color (cons color color)) @@ -145,10 +260,87 @@ foreground and background colors, respectively." (choice color (cons color color)) (choice color (cons color color)) (choice color (cons color color))) - :set 'ansi-color-map-update - :initialize 'custom-initialize-default :version "24.4" ; default colors copied from `xterm-standard-colors' :group 'ansi-colors) +(make-obsolete-variable 'ansi-color-faces-vector + 'ansi-color-normal-colors-vector "28.1") + +(defvar ansi-color-basic-faces-vector + [nil + ansi-color-bold + ansi-color-faint + ansi-color-italic + ansi-color-underline + ansi-color-slow-blink + ansi-color-fast-blink + ansi-color-inverse] + "Faces used for SGR control sequences determining a face. +This vector holds the faces used for SGR control sequence parameters 0 +to 7. + +Parameter Description + 0 default + 1 bold + 2 faint + 3 italic + 4 underlined + 5 slowly blinking + 6 rapidly blinking + 7 negative image") + +(defvar ansi-color-normal-colors-vector + [ansi-color-black + ansi-color-red + ansi-color-green + ansi-color-yellow + ansi-color-blue + ansi-color-magenta + ansi-color-cyan + ansi-color-white] + "Faces used for SGR control sequences determining a color. +This vector holds the faces used for SGR control sequence parameters +30 to 37 (foreground colors) and 40 to 47 (background colors). + +Parameter Color + 30 40 black + 31 41 red + 32 42 green + 33 43 yellow + 34 44 blue + 35 45 magenta + 36 46 cyan + 37 47 white") + +(defvar ansi-color-bright-colors-vector + [ansi-color-bright-black + ansi-color-bright-red + ansi-color-bright-green + ansi-color-bright-yellow + ansi-color-bright-blue + ansi-color-bright-magenta + ansi-color-bright-cyan + ansi-color-bright-white] + "Faces used for SGR control sequences determining a \"bright\" color. +This vector holds the faces used for SGR control sequence parameters +90 to 97 (bright foreground colors) and 100 to 107 (bright background +colors). + +Parameter Color + 90 100 bright black + 91 101 bright red + 92 102 bright green + 93 103 bright yellow + 94 104 bright blue + 95 105 bright magenta + 96 106 bright cyan + 97 107 bright white") + +(defcustom ansi-color-bold-is-bright nil + "If set to non-nil, combining ANSI bold and a color produces the bright +version of that color." + :type 'boolean + :version "28.1" + :group 'ansi-colors) (defconst ansi-color-control-seq-regexp ;; See ECMA 48, section 5.4 "Control Sequences". @@ -266,11 +458,18 @@ variable, and is meant to be used in `compilation-filter-hook'." ;; Working with strings (defvar-local ansi-color-context nil "Context saved between two calls to `ansi-color-apply'. -This is a list of the form (CODES FRAGMENT) or nil. CODES +This is a list of the form (FACE-VEC FRAGMENT) or nil. FACE-VEC represents the state the last call to `ansi-color-apply' ended -with, currently a list of ansi codes, and FRAGMENT is a string -starting with an escape sequence, possibly the start of a new -escape sequence.") +with, currently a list of the form: + + (BASIC-FACES FG BG) + +BASIC-FACES is a bool-vector that specifies which basic faces +from `ansi-color-basic-faces-vector' to apply. FG and BG are +ANSI color codes for the foreground and background color. + +FRAGMENT is a string starting with an escape sequence, possibly +the start of a new escape sequence.") (defun ansi-color-filter-apply (string) "Filter out all ANSI control sequences from STRING. @@ -281,17 +480,17 @@ will be used for the next call to `ansi-color-apply'. Set `ansi-color-context' to nil if you don't want this. This function can be added to `comint-preoutput-filter-functions'." - (let ((start 0) end result) + (let ((context (ansi-color--ensure-context 'ansi-color-context nil)) + (start 0) end result) ;; if context was saved and is a string, prepend it - (if (cadr ansi-color-context) - (setq string (concat (cadr ansi-color-context) string) - ansi-color-context nil)) + (setq string (concat (cadr context) string)) + (setcar (cdr context) "") ;; find the next escape sequence (while (setq end (string-match ansi-color-control-seq-regexp string start)) (push (substring string start end) result) (setq start (match-end 0))) ;; save context, add the remainder of the string to the result - (let (fragment) + (let ((fragment "")) (push (substring string start (if (string-match "\033" string start) (let ((pos (match-beginning 0))) @@ -299,31 +498,16 @@ This function can be added to `comint-preoutput-filter-functions'." pos) nil)) result) - (setq ansi-color-context (if fragment (list nil fragment)))) + (setcar (cdr context) fragment)) (apply #'concat (nreverse result)))) -(defun ansi-color--find-face (codes) - "Return the face corresponding to CODES." - (let (faces) - (while codes - (let ((face (ansi-color-get-face-1 (pop codes)))) - ;; In the (default underline) face, say, the value of the - ;; "underline" attribute of the `default' face wins. - (unless (eq face 'default) - (push face faces)))) - ;; Avoid some long-lived conses in the common case. - (if (cdr faces) - (nreverse faces) - (car faces)))) - (defun ansi-color-apply (string) "Translates SGR control sequences into text properties. Delete all other control sequences without processing them. Applies SGR control sequences setting foreground and background colors -to STRING using text properties and returns the result. The colors used -are given in `ansi-color-faces-vector' and `ansi-color-names-vector'. -See function `ansi-color-apply-sequence' for details. +to STRING using text properties and returns the result. See function +`ansi-color-apply-sequence' for details. Every call to this function will set and use the buffer-local variable `ansi-color-context' to save partial escape sequences and current ansi codes. @@ -331,49 +515,157 @@ This information will be used for the next call to `ansi-color-apply'. Set `ansi-color-context' to nil if you don't want this. This function can be added to `comint-preoutput-filter-functions'." - (let ((codes (car ansi-color-context)) - (start 0) end result) + (let* ((context + (ansi-color--ensure-context 'ansi-color-context nil)) + (face-vec (car context)) + (start 0) + end result) ;; If context was saved and is a string, prepend it. - (if (cadr ansi-color-context) - (setq string (concat (cadr ansi-color-context) string) - ansi-color-context nil)) + (setq string (concat (cadr context) string)) + (setcar (cdr context) "") ;; Find the next escape sequence. (while (setq end (string-match ansi-color-control-seq-regexp string start)) (let ((esc-end (match-end 0))) ;; Colorize the old block from start to end using old face. - (when codes + (when-let ((face (ansi-color--face-vec-face face-vec))) (put-text-property start end 'font-lock-face - (ansi-color--find-face codes) string)) + face string)) (push (substring string start end) result) (setq start (match-end 0)) ;; If this is a color escape sequence, (when (eq (aref string (1- esc-end)) ?m) ;; create a new face from it. - (setq codes (ansi-color-apply-sequence - (substring string end esc-end) codes))))) + (let ((cur-pos end)) + (ansi-color--update-face-vec + face-vec + (lambda () + (when (string-match ansi-color-parameter-regexp + string cur-pos) + (setq cur-pos (match-end 0)) + (when (<= cur-pos esc-end) + (string-to-number (match-string 1 string)))))))))) ;; if the rest of the string should have a face, put it there - (when codes + (when-let ((face (ansi-color--face-vec-face face-vec))) (put-text-property start (length string) - 'font-lock-face (ansi-color--find-face codes) string)) + 'font-lock-face face string)) ;; save context, add the remainder of the string to the result - (let (fragment) - (if (string-match "\033" string start) - (let ((pos (match-beginning 0))) - (setq fragment (substring string pos)) - (push (substring string start pos) result)) - (push (substring string start) result)) - (setq ansi-color-context (if (or codes fragment) (list codes fragment)))) + (if (string-match "\033" string start) + (let ((pos (match-beginning 0))) + (setcar (cdr context) (substring string pos)) + (push (substring string start pos) result)) + (push (substring string start) result)) (apply 'concat (nreverse result)))) +(defun ansi-color--ensure-context (context-sym position) + "Return CONTEXT-SYM's value as a valid context. +If it is nil, set CONTEXT-SYM's value to a new context and return +it. Context is a list of the form as described in +`ansi-color-context' if POSITION is nil, or +`ansi-color-context-region' if POSITION is non-nil. + +If CONTEXT-SYM's value is already non-nil, return it. If its +marker doesn't point anywhere yet, position it before character +number POSITION, if non-nil." + (let ((context (symbol-value context-sym))) + (if context + (if position + (let ((marker (cadr context))) + (unless (marker-position marker) + (set-marker marker position)) + context) + context) + (set context-sym + (list (list (make-bool-vector 8 nil) + nil nil) + (if position + (copy-marker position) + "")))))) + +(defun ansi-color--face-vec-face (face-vec) + "Return the face corresponding to FACE-VEC. +FACE-VEC is a list containing information about the ANSI sequence +code. It is usually stored as the car of the variable +`ansi-color-context-region'." + (let* ((basic-faces (car face-vec)) + (colors (cdr face-vec)) + (bright (and ansi-color-bold-is-bright (aref basic-faces 1))) + (faces nil)) + + (when-let ((fg (car colors))) + (push + `(:foreground + ,(or (ansi-color--code-as-hex fg) + (face-foreground + (aref (if (or bright (>= fg 8)) + ansi-color-bright-colors-vector + ansi-color-normal-colors-vector) + (mod fg 8)) + nil 'default))) + faces)) + (when-let ((bg (cadr colors))) + (push + `(:background + ,(or (ansi-color--code-as-hex bg) + (face-background + (aref (if (or bright (>= bg 8)) + ansi-color-bright-colors-vector + ansi-color-normal-colors-vector) + (mod bg 8)) + nil 'default))) + faces)) + + (let ((i 8)) + (while (> i 0) + (setq i (1- i)) + (when (aref basic-faces i) + (push (aref ansi-color-basic-faces-vector i) faces)))) + ;; Avoid some long-lived conses in the common case. + (if (cdr faces) + faces + (car faces)))) + +(defun ansi-color--code-as-hex (color) + "Convert COLOR to hexadecimal string representation. +COLOR is an ANSI color code. If it is between 16 and 255 +inclusive, it corresponds to a color from an 8-bit color cube. +If it is greater or equal than 256, it is subtracted by 256 to +directly specify a 24-bit color. + +Return a hexadecimal string, specifying the color, or nil, if +COLOR is less than 16." + (cond + ((< color 16) nil) + ((>= color 256) (format "#%06X" (- color 256))) + ((>= color 232) ;; Grayscale + (format "#%06X" (* #x010101 (+ 8 (* 10 (- color 232)))))) + (t ;; 6x6x6 color cube + (setq color (- color 16)) + (let ((res 0) + (frac (* 6 6))) + (while (<= 1 frac) ; Repeat 3 times + (setq res (* res #x000100)) + (let ((color-num (mod (/ color frac) 6))) + (unless (zerop color-num) + (setq res (+ res #x37 (* #x28 color-num))))) + (setq frac (/ frac 6))) + (format "#%06X" res))))) + ;; Working with regions (defvar-local ansi-color-context-region nil "Context saved between two calls to `ansi-color-apply-on-region'. -This is a list of the form (CODES MARKER) or nil. CODES +This is a list of the form (FACE-VEC MARKER) or nil. FACE-VEC represents the state the last call to `ansi-color-apply-on-region' -ended with, currently a list of ansi codes, and MARKER is a -buffer position within an escape sequence or the last position -processed.") +ended with, currently a list of the form: + + (BASIC-FACES FG BG). + +BASIC-FACES is a bool-vector that specifies which basic faces +from `ansi-color-basic-faces-vector' to apply. FG and BG are +ANSI color codes for the foreground and background color. + +MARKER is a buffer position within an escape sequence or the last +position processed.") (defun ansi-color-filter-region (begin end) "Filter out all ANSI control sequences from region BEGIN to END. @@ -383,8 +675,10 @@ Every call to this function will set and use the buffer-local variable used for the next call to `ansi-color-apply-on-region'. Specifically, it will override BEGIN, the start of the region. Set `ansi-color-context-region' to nil if you don't want this." - (let ((end-marker (copy-marker end)) - (start (or (cadr ansi-color-context-region) begin))) + (let* ((end-marker (copy-marker end)) + (context (ansi-color--ensure-context + 'ansi-color-context-region begin)) + (start (cadr context))) (save-excursion (goto-char start) ;; Delete escape sequences. @@ -392,8 +686,8 @@ it will override BEGIN, the start of the region. Set (delete-region (match-beginning 0) (match-end 0))) ;; save context, add the remainder of the string to the result (if (re-search-forward "\033" end-marker t) - (setq ansi-color-context-region (list nil (match-beginning 0))) - (setq ansi-color-context-region nil))))) + (set-marker start (match-beginning 0)) + (set-marker start nil))))) (defun ansi-color-apply-on-region (begin end &optional preserve-sequences) "Translates SGR control sequences into overlays or extents. @@ -402,8 +696,7 @@ Delete all other control sequences without processing them. SGR control sequences are applied by calling the function specified by `ansi-color-apply-face-function'. The default function sets foreground and background colors to the text -between BEGIN and END, using overlays. The colors used are given -in `ansi-color-faces-vector' and `ansi-color-names-vector'. See +between BEGIN and END, using overlays. See function `ansi-color-apply-sequence' for details. Every call to this function will set and use the buffer-local @@ -416,58 +709,58 @@ this. If PRESERVE-SEQUENCES is t, the sequences are hidden instead of being deleted." - (let ((codes (car ansi-color-context-region)) - (start-marker (or (cadr ansi-color-context-region) - (copy-marker begin))) - (end-marker (copy-marker end))) + (let* ((context (ansi-color--ensure-context + 'ansi-color-context-region begin)) + (face-vec (car context)) + (start-marker (cadr context)) + (end-marker (copy-marker end))) (save-excursion (goto-char start-marker) ;; Find the next escape sequence. (while (re-search-forward ansi-color-control-seq-regexp end-marker t) ;; Extract escape sequence. - (let ((esc-seq (buffer-substring - (match-beginning 0) (point)))) - (if preserve-sequences - ;; Make the escape sequence transparent. - (overlay-put (make-overlay (match-beginning 0) (point)) - 'invisible t) - ;; Otherwise, strip. - (delete-region (match-beginning 0) (point))) - + (let ((esc-beg (match-beginning 0)) + (esc-end (point))) ;; Colorize the old block from start to end using old face. (funcall ansi-color-apply-face-function (prog1 (marker-position start-marker) ;; Store new start position. - (set-marker start-marker (point))) - (match-beginning 0) (ansi-color--find-face codes)) + (set-marker start-marker esc-end)) + esc-beg (ansi-color--face-vec-face face-vec)) ;; If this is a color sequence, - (when (eq (aref esc-seq (1- (length esc-seq))) ?m) - ;; update the list of ansi codes. - (setq codes (ansi-color-apply-sequence esc-seq codes))))) + (when (eq (char-before esc-end) ?m) + (goto-char esc-beg) + (ansi-color--update-face-vec + face-vec (lambda () + (when (re-search-forward ansi-color-parameter-regexp + esc-end t) + (string-to-number (match-string 1)))))) + + (if preserve-sequences + ;; Make the escape sequence transparent. + (overlay-put (make-overlay esc-beg esc-end) 'invisible t) + ;; Otherwise, strip. + (delete-region esc-beg esc-end)))) ;; search for the possible start of a new escape sequence (if (re-search-forward "\033" end-marker t) - (progn - ;; if the rest of the region should have a face, put it there - (funcall ansi-color-apply-face-function - start-marker (point) (ansi-color--find-face codes)) - ;; save codes and point - (setq ansi-color-context-region - (list codes (copy-marker (match-beginning 0))))) - ;; if the rest of the region should have a face, put it there - (funcall ansi-color-apply-face-function - start-marker end-marker (ansi-color--find-face codes)) - ;; Save a restart position when there are codes active. It's - ;; convenient for man.el's process filter to pass `begin' - ;; positions that overlap regions previously colored; these - ;; `codes' should not be applied to that overlap, so we need - ;; to know where they should really start. - (setq ansi-color-context-region - (if codes (list codes (copy-marker (point))))))) - ;; Clean up our temporary markers. - (unless (eq start-marker (cadr ansi-color-context-region)) - (set-marker start-marker nil)) - (unless (eq end-marker (cadr ansi-color-context-region)) - (set-marker end-marker nil)))) + (progn + (while (re-search-forward "\033" end-marker t)) + (backward-char) + (funcall ansi-color-apply-face-function + start-marker (point) + (ansi-color--face-vec-face face-vec)) + (set-marker start-marker (point))) + (let ((faces (ansi-color--face-vec-face face-vec))) + (funcall ansi-color-apply-face-function + start-marker end-marker faces) + ;; Save a restart position when there are codes active. It's + ;; convenient for man.el's process filter to pass `begin' + ;; positions that overlap regions previously colored; these + ;; `codes' should not be applied to that overlap, so we need + ;; to know where they should really start. + (set-marker start-marker (when faces end-marker))))) + ;; Clean up our temporary marker. + (set-marker end-marker nil))) (defun ansi-color-apply-overlay-face (beg end face) "Make an overlay from BEG to END, and apply face FACE. @@ -570,11 +863,12 @@ ESCAPE-SEQUENCE is an escape sequence parsed by For each new code, the following happens: if it is 1-7, add it to the list of codes; if it is 21-25 or 27, delete appropriate -parameters from the list of codes; if it is 30-37 resp. 39, the -foreground color code is replaced or added resp. deleted; if it -is 40-47 resp. 49, the background color code is replaced or added -resp. deleted; any other code is discarded together with the old -codes. Finally, the so changed list of codes is returned." +parameters from the list of codes; if it is 30-37 (or 90-97) resp. 39, +the foreground color code is replaced or added resp. deleted; if it +is 40-47 (or 100-107) resp. 49, the background color code is replaced +or added resp. deleted; any other code is discarded together with the +old codes. Finally, the so changed list of codes is returned." + (declare (obsolete ansi-color--update-face-vec "29.1")) (let ((new-codes (ansi-color-parse-sequence escape-sequence))) (while new-codes (let* ((new (pop new-codes)) @@ -591,7 +885,7 @@ codes. Finally, the so changed list of codes is returned." (22 (remq 1 codes)) (25 (remq 6 codes)) (_ codes))))) - ((or 3 4) (let ((r (mod new 10))) + ((or 3 4 9 10) (let ((r (mod new 10))) (unless (= r 8) (let (beg) (while (and codes (/= q (/ (car codes) 10))) @@ -603,14 +897,82 @@ codes. Finally, the so changed list of codes is returned." (_ nil))))) codes)) +(defun ansi-color--update-face-vec (face-vec iterator) + "Apply escape sequences to FACE-VEC. + +Destructively modify FACE-VEC, which should be a list containing +face information. It is described in +`ansi-color-context-region'. ITERATOR is a function which is +called repeatedly with zero arguments and should return either +the next ANSI code in the current sequence as a number or nil if +there are no more ANSI codes left. + +For each new code, the following happens: if it is 1-7, set the +corresponding properties; if it is 21-25 or 27, unset appropriate +properties; if it is 30-37 (or 90-97) or resp. 39, set the +foreground color or resp. unset it; if it is 40-47 (or 100-107) +resp. 49, set the background color or resp. unset it; if it is 38 +or 48, the following codes are used to set the foreground or +background color and the correct color mode; any other code will +unset all properties and colors." + (let ((basic-faces (car face-vec)) + (colors (cdr face-vec)) + new q do-clear) + (while (setq new (funcall iterator)) + (setq q (/ new 10)) + (pcase q + (0 (if (memq new '(0 8 9)) + (setq do-clear t) + (aset basic-faces new t))) + (2 (if (memq new '(20 26 28 29)) + (setq do-clear t) + ;; The standard says `21 doubly underlined' while + ;; https://en.wikipedia.org/wiki/ANSI_escape_code claims + ;; `21 Bright/Bold: off or Underline: Double'. + (aset basic-faces (- new 20) nil) + (aset basic-faces (pcase new (22 1) (25 6) (_ 0)) nil))) + ((or 3 4 9 10) + (let ((r (mod new 10)) + (cell (if (memq q '(3 9)) colors (cdr colors)))) + (pcase r + (8 + (pcase (funcall iterator) + (5 (setq new (setcar cell (funcall iterator))) + (setq do-clear (or (null new) (>= new 256)))) + (2 + (let ((red (funcall iterator)) + (green (funcall iterator)) + (blue (funcall iterator))) + (if (and red green blue + (progn + (setq new (+ (* #x010000 red) + (* #x000100 green) + (* #x000001 blue))) + (<= new #xFFFFFF))) + (setcar cell (+ 256 new)) + (setq do-clear t)))) + (_ (setq do-clear t)))) + (9 (setcar cell nil)) + (_ (setcar cell (+ (if (memq q '(3 4)) 0 8) r)))))) + (_ (setq do-clear t))) + + (when do-clear + (setq do-clear nil) + ;; Zero out our bool vector without any allocation. + (bool-vector-intersection basic-faces #&8"\0" basic-faces) + (setcar colors nil) + (setcar (cdr colors) nil))))) + (defun ansi-color-make-color-map () - "Creates a vector of face definitions and returns it. + "Create a vector of face definitions and return it. The index into the vector is an ANSI code. See the documentation of `ansi-color-map' for an example. The face definitions are based upon the variables -`ansi-color-faces-vector' and `ansi-color-names-vector'." +`ansi-color-faces-vector' and `ansi-color-names-vector'. + +This function is obsolete, and no longer needed to use ansi-color." (let ((map (make-vector 50 nil)) (index 0)) ;; miscellaneous attributes @@ -638,34 +1000,58 @@ The face definitions are based upon the variables (setq index (1+ index)) ) ansi-color-names-vector) map)) +(make-obsolete 'ansi-color-make-color-map "you can remove it." "28.1") -(defvar ansi-color-map (ansi-color-make-color-map) - "A brand new color map suitable for `ansi-color-get-face'. +(defvar ansi-color-map + (with-no-warnings (ansi-color-make-color-map)) + "A brand new color map, formerly suitable for `ansi-color-get-face'. The value of this variable is usually constructed by `ansi-color-make-color-map'. The values in the array are such that the numbers included in an SGR control sequences point to the correct foreground or background colors. -Example: The sequence \\033[34m specifies a blue foreground. Therefore: - (aref ansi-color-map 34) - => (foreground-color . \"blue\")") +This variable is obsolete, and no longer needed to use ansi-color.") +(make-obsolete-variable 'ansi-color-map "you can remove it." "28.1") (defun ansi-color-map-update (symbol value) "Update `ansi-color-map'. -Whenever the vectors used to construct `ansi-color-map' are changed, -this function is called. Therefore this function is listed as the :set -property of `ansi-color-faces-vector' and `ansi-color-names-vector'." +This function is obsolete, and no longer needed to use ansi-color." (set-default symbol value) - (setq ansi-color-map (ansi-color-make-color-map))) - -(defun ansi-color-get-face-1 (ansi-code) - "Get face definition from `ansi-color-map'. -ANSI-CODE is used as an index into the vector." - (condition-case nil - (aref ansi-color-map ansi-code) - (args-out-of-range nil))) + (with-no-warnings + (setq ansi-color-map (ansi-color-make-color-map)))) +(make-obsolete 'ansi-color-map-update "you can remove it." "28.1") + +(defun ansi-color-get-face-1 (ansi-code &optional bright) + "Get face definition for ANSI-CODE. +BRIGHT, if non-nil, requests \"bright\" ANSI colors, even if ANSI-CODE +is a normal-intensity color." + (declare (obsolete ansi-color--face-vec-face "29.1")) + (when (and bright (<= 30 ansi-code 49)) + (setq ansi-code (+ ansi-code 60))) + (cond ((<= 0 ansi-code 7) + (aref ansi-color-basic-faces-vector ansi-code)) + ((<= 30 ansi-code 38) + (list :foreground + (face-foreground + (aref ansi-color-normal-colors-vector (- ansi-code 30)) + nil 'default))) + ((<= 40 ansi-code 48) + (list :background + (face-background + (aref ansi-color-normal-colors-vector (- ansi-code 40)) + nil 'default))) + ((<= 90 ansi-code 98) + (list :foreground + (face-foreground + (aref ansi-color-bright-colors-vector (- ansi-code 90)) + nil 'default))) + ((<= 100 ansi-code 108) + (list :background + (face-background + (aref ansi-color-bright-colors-vector (- ansi-code 100)) + nil 'default))))) (provide 'ansi-color) |