Graphviz dot mode for Emacs patch
This just modifies the code to support paths with spaces when compiling the dot files.
;;; graphviz-dot-mode.el --- Mode for the dot-language used
by graphviz (att). ;; Copyright (C) 2002 - 2005 Pieter Pareit
<pieter.pareit@scarlet.be>
;; This program is free software; you can redistribute it and/or ;; modify it
under the terms of the GNU General Public License as ;; published by the Free
Software Foundation; either version 2 of ;; the License, or (at your option)
any later version. ;; This program is distributed in the hope that it will be
;; useful, but WITHOUT ANY WARRANTY; without even the implied ;; warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR ;; PURPOSE. See the GNU General
Public License for more details. ;; You should have received a copy of the GNU
General Public ;; License along with this program; if not, write to the Free
;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, ;; MA
02111-1307 USA ;; Authors: Pieter Pareit
<pieter.pareit@scarlet.be>
;; Rubens Ramos
<rubensr AT users.sourceforge.net>
;; Victor Engmark
<victor.engmark@gmail.com>
;; Maintainer: Pieter Pareit
<pieter.pareit@planetinternet.be>
;; Homepage:
http://users.skynet.be/ppareit/projects/graphviz-dot-mode/graphviz-dot-mode.html
;; This version homepage:
https://paperless.blog/graphviz-dot-mode-for-emacs-patch/ ;; Created:
28 Oct 2002 ;; Last modified: 5 Oct 2009 ;; Version: 0.3.4 ;;
Keywords: mode dot dot-language dotlanguage graphviz graphs att ;;;
Commentary: ;; Use this mode for editing files in the dot-language
(www.graphviz.org and ;;
http://www.research.att.com/sw/tools/graphviz/). ;; ;; To use
graphviz-dot-mode, add ;; (load-file
"PATH_TO_FILE/graphviz-dot-mode.el") ;; to your ~/.emacs(.el) or
~/.xemacs/init.el ;; ;; The graphviz-dot-mode will do font locking,
indentation, preview of graphs ;; and eases compilation/error
location. There is support for both GNU Emacs ;; and XEmacs. ;; ;;
Font locking is automatic, indentation uses the same commands as ;;
other modes, tab, M-j and C-M-q. Insertion of comments uses the ;;
same commands as other modes, M-; . You can compile a file using ;;
M-x compile or C-c c, after that M-x next-error will also work. ;;
There is support for viewing an generated image with C-c p. ;;; Todo:
;; * cleanup the mess of graphviz-dot-compilation-parse-errors ;; *
electric indentation is fundamentally broken, because ;; {...} are
also used for record nodes. You could argue, I suppose, that ;; many
diagrams don't need those, but it would be worth having a note (and ;;
it makes sense that the default is now for electric indentation to be
;; off). ;;; History: ;; Version 0.3.5 bug fix ;; 2009-10-04: *
compilation works with file paths which contain spaces ;; Version
0.3.4 bug fixes ;; 24/02/2005: * fixed a bug in graphviz-dot-preview
;; Version 0.3.3 bug fixes ;; 13/02/2005: Reuben Thomas
<rrt AT sc3d.org>
;; * add graphviz-dot-indent-width ;; Version 0.3.2 bug fixes ;;
25/03/2004: Rubens Ramos
<rubensr AT users.sourceforge.net>
;; * semi-colons and brackets are added when electric ;; behaviour
is disabled. ;; * electric characters do not behave electrically
inside ;; comments or strings. ;; * default for electric-braces is
disabled now (makes more ;; sense I guess). ;; * using
read-from-minibuffer instead of read-shell-command ;; for emacs.
;; * Fixed test for easymenu, so that it works on older ;;
versions of XEmacs. ;; * Fixed indentation error when trying to
indent last brace ;; of an empty graph. ;; * region-active-p does
not exist in emacs (21.2 at least), ;; so removed from code ;; *
Added uncomment menu option ;; Version 0.3.1 bug fixes ;;
03/03/2004: * backward-word needs argument for older emacs ;;
Version 0.3 added features and fixed bugs ;; 10/01/2004: fixed a
bug in graphviz-dot-indent-graph ;; 08/01/2004: Rubens Ramos
<rubensr AT users.sourceforge.net>
;; * added customization support ;; * Now it works on XEmacs and
Emacs ;; * Added support to use an external Viewer ;; * Now
things do not break when dot mode is entered ;; when there is no
buffer name, but the side effect is ;; that in this case, the
compilation command is not ;; correct. ;; * Preview works on
XEmacs and emacs. ;; * Electric indentation on newline ;; *
Minor changes to indentation ;; * Added keyword completion (but
could be A LOT better) ;; * There are still a couple of ugly
hacks. Look for 'RR'. ;; Version 0.2 added features ;;
11/11/2002: added preview support. ;; 10/11/2002: indent a graph
or subgraph at once with C-M-q. ;; 08/11/2002: relaxed rules for
indentation, the may now be extra chars ;; after beginning of
graph (comment's for example). ;; Version 0.1.2 bug fixes and
naming issues ;; 06/11/2002: renamed dot-font-lock-defaults to
dot-font-lock-keywords. ;; added some documentation to
dot-colors. ;; provided a much better way to handle my
max-specpdl-size ;; problem. ;; added an extra autoload cookie
(hope this helps, as I don't ;; yet use autoload myself) ;;
Version 0.1.1 bug fixes ;; 06/11/2002: added an missing
attribute, for font-locking to work. ;; fixed the regex
generating, so that it only recognizes ;; whole words ;;
05/11/2002: there can now be extra white space chars after an
'{'. ;; 04/11/2002: Why I use max-specpdl-size is now
documented, and old value ;; gets restored. ;; Version 0.1
initial release ;; 02/11/2002: implemented parser for
*compilation* of a .dot file. ;; 01/11/2002: implemented
compilation of an .dot file. ;; 31/10/2002: added syntax-table
to the mode. ;; 30/10/2002: implemented indentation code. ;;
29/10/2002: implemented all of font-lock. ;; 28/10/2002: derived
graphviz-dot-mode from fundamental-mode, started ;; implementing
font-lock. ;;; Code: (defconst graphviz-dot-mode-version "0.3.3"
"Version of `graphviz-dot-mode.el'.") (defgroup graphviz nil
"Major mode for editing Graphviz Dot files" :group 'tools)
(defun graphviz-dot-customize () "Run \\[customize-group] for
the `graphviz' group." (interactive) (customize-group
'graphviz)) (defvar graphviz-dot-mode-abbrev-table nil "Abbrev
table in use in Graphviz Dot mode buffers.")
(define-abbrev-table 'graphviz-dot-mode-abbrev-table ())
(defcustom graphviz-dot-dot-program "dot" "*Location of the dot
program. This is used by `compile'." :type 'string :group
'graphviz) (defcustom graphviz-dot-view-command "doted %s"
"*External program to run on the buffer. You can use `%s' in
this string, and it will be substituted by the buffer name."
:type 'string :group 'graphviz) (defcustom
graphviz-dot-view-edit-command nil "*Whether to allow the user
to edit the command to run an external viewer." :type 'boolean
:group 'graphviz) (defcustom graphviz-dot-save-before-view t
"*If not nil, M-x graphviz-dot-view saves the current buffer
before running the command." :type 'boolean :group 'graphviz)
(defcustom graphviz-dot-auto-indent-on-newline t "*If not nil,
`electric-graphviz-dot-terminate-line' is executed in a line is
terminated." :type 'boolean :group 'graphviz) (defcustom
graphviz-dot-indent-width default-tab-width "*Indentation width
in Graphviz Dot mode buffers." :type 'integer :group 'graphviz)
(defcustom graphviz-dot-auto-indent-on-braces nil "*If not nil,
`electric-graphviz-dot-open-brace' and
`electric-graphviz-dot-close-brace' are executed when { or } are
typed" :type 'boolean :group 'graphviz) (defcustom
graphviz-dot-auto-indent-on-semi t "*If not nil,
`electric-graphviz-dot-semi' is executed when semicolon is
typed" :type 'boolean :group 'graphviz) (defcustom
graphviz-dot-preview-extension "png" "*The extension to use for
the compilation and preview commands. The format for the
compilation command is `dot -T<extension>
file.dot > file.<extension
>'." :type 'string :group 'graphviz) (defcustom
graphviz-dot-toggle-completions nil "*Non-nil means that
repeated use of \ \\<graphviz-dot-mode-map
>\\[graphviz-dot-complete-word] will toggle the possible
completions in the minibuffer. Normally, when there is
more than one possible completion, a buffer will display
all completions." :type 'boolean :group 'graphviz)
(defcustom graphviz-dot-delete-completions nil "*Non-nil
means that the completion buffer is automatically deleted
when a key is pressed." :type 'boolean :group 'graphviz)
(defcustom graphviz-dot-attr-keywords '("graph" "digraph"
"subgraph" "node" "edge" "strict" "rankdir" "size" "page"
"Damping" "Epsilon" "URL" "arrowhead" "arrowsize"
"arrowtail" "bb" "bgcolor" "bottomlabel" "center"
"clusterrank" "color" "comment" "compound" "concentrate"
"constraint" "decorate" "dim" "dir" "distortion"
"fillcolor" "fixedsize" "fontcolor" "fontname" "fontpath"
"fontsize" "group" "headURL" "headlabel" "headport"
"height" "label" "labelangle" "labeldistance" "labelfloat"
"labelfontcolor" "labelfontname" "labelfontsize"
"labeljust" "labelloc" "layer" "layers" "len" "lhead" "lp"
"ltail" "margin" "maxiter" "mclimit" "minlen" "model"
"nodesep" "normalize" "nslimit" "nslimit1" "ordering"
"orientation" "overlap" "pack" "pagedir" "pencolor"
"peripheries" "pin" "pos" "quantum" "rank" "ranksep"
"ratio" "rects" "regular" "remincross" "rotate" "samehead"
"sametail" "samplepoint" "searchsize" "sep" "shape"
"shapefile" "showboxes" "sides" "skew" "splines" "start"
"style" "stylesheet" "tailURL" "taillabel" "tailport"
"toplabel" "vertices" "voro_margin" "weight" "z")
"*Keywords for attribute names in a graph. This is used by
the auto completion code. The actual completion tables are
built when the mode is loaded, so changes to this are not
immediately visible." :type '(repeat (string :tag
"Keyword")) :group 'graphviz) (defcustom
graphviz-dot-value-keywords '("true" "false" "normal"
"inv" "dot" "invdot" "odot" "invodot" "none" "tee" "empty"
"invempty" "diamond" "odiamond" "box" "obox" "open" "crow"
"halfopen" "local" "global" "none" "forward" "back" "both"
"none" "BL" "BR" "TL" "TR" "RB" "RT" "LB" "LT" ":n" ":ne"
":e" ":se" ":s" ":sw" ":w" ":nw" "same" "min" "source"
"max" "sink" "LR" "box" "polygon" "ellipse" "circle"
"point" "egg" "triangle" "plaintext" "diamond" "trapezium"
"parallelogram" "house" "hexagon" "octagon" "doublecircle"
"doubleoctagon" "tripleoctagon" "invtriangle"
"invtrapezium" "invhouse" "Mdiamond" "Msquare" "Mcircle"
"record" "Mrecord" "dashed" "dotted" "solid" "invis"
"bold" "filled" "diagonals" "rounded" ) "*Keywords for
attribute values. This is used by the auto completion
code. The actual completion tables are built when the mode
is loaded, so changes to this are not immediately
visible." :type '(repeat (string :tag "Keyword")) :group
'graphviz) ;;; Font-locking: (defvar
graphviz-dot-colors-list '(aliceblue antiquewhite
antiquewhite1 antiquewhite2 antiquewhite3 antiquewhite4
aquamarine aquamarine1 aquamarine2 aquamarine3 aquamarine4
azure azure1 azure2 azure3 azure4 beige bisque bisque1
bisque2 bisque3 bisque4 black blanchedalmond blue blue1
blue2 blue3 blue4 blueviolet brown brown1 brown2 brown3
brown4 burlywood burlywood1 burlywood2 burlywood3
burlywood4 cadetblue cadetblue1 cadetblue2 cadetblue3
cadetblue4 chartreuse chartreuse1 chartreuse2 chartreuse3
chartreuse4 chocolate chocolate1 chocolate2 chocolate3
chocolate4 coral coral1 coral2 coral3 coral4
cornflowerblue cornsilk cornsilk1 cornsilk2 cornsilk3
cornsilk4 crimson cyan cyan1 cyan2 cyan3 cyan4
darkgoldenrod darkgoldenrod1 darkgoldenrod2 darkgoldenrod3
darkgoldenrod4 darkgreen darkkhaki darkolivegreen
darkolivegreen1 darkolivegreen2 darkolivegreen3
darkolivegreen4 darkorange darkorange1 darkorange2
darkorange3 darkorange4 darkorchid darkorchid1 darkorchid2
darkorchid3 darkorchid4 darksalmon darkseagreen
darkseagreen1 darkseagreen2 darkseagreen3 darkseagreen4
darkslateblue darkslategray darkslategray1 darkslategray2
darkslategray3 darkslategray4 darkslategrey darkturquoise
darkviolet deeppink deeppink1 deeppink2 deeppink3
deeppink4 deepskyblue deepskyblue1 deepskyblue2
deepskyblue3 deepskyblue4 dimgray dimgrey dodgerblue
dodgerblue1 dodgerblue2 dodgerblue3 dodgerblue4 firebrick
firebrick1 firebrick2 firebrick3 firebrick4 floralwhite
forestgreen gainsboro ghostwhite gold gold1 gold2 gold3
gold4 goldenrod goldenrod1 goldenrod2 goldenrod3
goldenrod4 gray gray0 gray1 gray10 gray100 gray11 gray12
gray13 gray14 gray15 gray16 gray17 gray18 gray19 gray2
gray20 gray21 gray22 gray23 gray24 gray25 gray26 gray27
gray28 gray29 gray3 gray30 gray31 gray32 gray33 gray34
gray35 gray36 gray37 gray38 gray39 gray4 gray40 gray41
gray42 gray43 gray44 gray45 gray46 gray47 gray48 gray49
gray5 gray50 gray51 gray52 gray53 gray54 gray55 gray56
gray57 gray58 gray59 gray6 gray60 gray61 gray62 gray63
gray64 gray65 gray66 gray67 gray68 gray69 gray7 gray70
gray71 gray72 gray73 gray74 gray75 gray76 gray77 gray78
gray79 gray8 gray80 gray81 gray82 gray83 gray84 gray85
gray86 gray87 gray88 gray89 gray9 gray90 gray91 gray92
gray93 gray94 gray95 gray96 gray97 gray98 gray99 green
green1 green2 green3 green4 greenyellow grey grey0 grey1
grey10 grey100 grey11 grey12 grey13 grey14 grey15 grey16
grey17 grey18 grey19 grey2 grey20 grey21 grey22 grey23
grey24 grey25 grey26 grey27 grey28 grey29 grey3 grey30
grey31 grey32 grey33 grey34 grey35 grey36 grey37 grey38
grey39 grey4 grey40 grey41 grey42 grey43 grey44 grey45
grey46 grey47 grey48 grey49 grey5 grey50 grey51 grey52
grey53 grey54 grey55 grey56 grey57 grey58 grey59 grey6
grey60 grey61 grey62 grey63 grey64 grey65 grey66 grey67
grey68 grey69 grey7 grey70 grey71 grey72 grey73 grey74
grey75 grey76 grey77 grey78 grey79 grey8 grey80 grey81
grey82 grey83 grey84 grey85 grey86 grey87 grey88 grey89
grey9 grey90 grey91 grey92 grey93 grey94 grey95 grey96
grey97 grey98 grey99 honeydew honeydew1 honeydew2
honeydew3 honeydew4 hotpink hotpink1 hotpink2 hotpink3
hotpink4 indianred indianred1 indianred2 indianred3
indianred4 indigo ivory ivory1 ivory2 ivory3 ivory4 khaki
khaki1 khaki2 khaki3 khaki4 lavender lavenderblush
lavenderblush1 lavenderblush2 lavenderblush3
lavenderblush4 lawngreen lemonchiffon lemonchiffon1
lemonchiffon2 lemonchiffon3 lemonchiffon4 lightblue
lightblue1 lightblue2 lightblue3 lightblue4 lightcoral
lightcyan lightcyan1 lightcyan2 lightcyan3 lightcyan4
lightgoldenrod lightgoldenrod1 lightgoldenrod2
lightgoldenrod3 lightgoldenrod4 lightgoldenrodyellow
lightgray lightgrey lightpink lightpink1 lightpink2
lightpink3 lightpink4 lightsalmon lightsalmon1
lightsalmon2 lightsalmon3 lightsalmon4 lightseagreen
lightskyblue lightskyblue1 lightskyblue2 lightskyblue3
lightskyblue4 lightslateblue lightslategray lightslategrey
lightsteelblue lightsteelblue1 lightsteelblue2
lightsteelblue3 lightsteelblue4 lightyellow lightyellow1
lightyellow2 lightyellow3 lightyellow4 limegreen linen
magenta magenta1 magenta2 magenta3 magenta4 maroon maroon1
maroon2 maroon3 maroon4 mediumaquamarine mediumblue
mediumorchid mediumorchid1 mediumorchid2 mediumorchid3
mediumorchid4 mediumpurple mediumpurple1 mediumpurple2
mediumpurple3 mediumpurple4 mediumseagreen mediumslateblue
mediumspringgreen mediumturquoise mediumvioletred
midnightblue mintcream mistyrose mistyrose1 mistyrose2
mistyrose3 mistyrose4 moccasin navajowhite navajowhite1
navajowhite2 navajowhite3 navajowhite4 navy navyblue
oldlace olivedrab olivedrap olivedrab1 olivedrab2
olivedrap3 oragne palegoldenrod palegreen palegreen1
palegreen2 palegreen3 palegreen4 paleturquoise
paleturquoise1 paleturquoise2 paleturquoise3
paleturquoise4 palevioletred palevioletred1 palevioletred2
palevioletred3 palevioletred4 papayawhip peachpuff
peachpuff1 peachpuff2 peachpuff3 peachpuff4 peru pink
pink1 pink2 pink3 pink4 plum plum1 plum2 plum3 plum4
powderblue purple purple1 purple2 purple3 purple4 red red1
red2 red3 red4 rosybrown rosybrown1 rosybrown2 rosybrown3
rosybrown4 royalblue royalblue1 royalblue2 royalblue3
royalblue4 saddlebrown salmon salmon1 salmon2 salmon3
salmon4 sandybrown seagreen seagreen1 seagreen2 seagreen3
seagreen4 seashell seashell1 seashell2 seashell3 seashell4
sienna sienna1 sienna2 sienna3 sienna4 skyblue skyblue1
skyblue2 skyblue3 skyblue4 slateblue slateblue1 slateblue2
slateblue3 slateblue4 slategray slategray1 slategray2
slategray3 slategray4 slategrey snow snow1 snow2 snow3
snow4 springgreen springgreen1 springgreen2 springgreen3
springgreen4 steelblue steelblue1 steelblue2 steelblue3
steelblue4 tan tan1 tan2 tan3 tan4 thistle thistle1
thistle2 thistle3 thistle4 tomato tomato1 tomato2 tomato3
tomato4 transparent turquoise turquoise1 turquoise2
turquoise3 turquoise4 violet violetred violetred1
violetred2 violetred3 violetred4 wheat wheat1 wheat2
wheat3 wheat4 white whitesmoke yellow yellow1 yellow2
yellow3 yellow4 yellowgreen) "Possible color constants in
the dot language. The list of constant is available at
http://www.research.att.com/~erg/graphviz\
/info/colors.html") (defvar graphviz-dot-color-keywords
(mapcar 'symbol-name graphviz-dot-colors-list)) (defvar
graphviz-attr-keywords (mapcar '(lambda (elm) (cons elm
0)) graphviz-dot-attr-keywords)) (defvar
graphviz-value-keywords (mapcar '(lambda (elm) (cons elm
0)) graphviz-dot-value-keywords)) (defvar
graphviz-color-keywords (mapcar '(lambda (elm) (cons elm
0)) graphviz-dot-color-keywords)) ;;; Key map (defvar
graphviz-dot-mode-map () "Keymap used in Graphviz Dot
mode.") (if graphviz-dot-mode-map () (let ((map
(make-sparse-keymap))) (define-key map "\r"
'electric-graphviz-dot-terminate-line) (define-key map "{"
'electric-graphviz-dot-open-brace) (define-key map "}"
'electric-graphviz-dot-close-brace) (define-key map ";"
'electric-graphviz-dot-semi) (define-key map "\M-\t"
'graphviz-dot-complete-word) (define-key map "\C-\M-q"
'graphviz-dot-indent-graph) (define-key map "\C-cp"
'graphviz-dot-preview) (define-key map "\C-cc" 'compile)
(define-key map "\C-cv" 'graphviz-dot-view) (define-key
map "\C-c\C-c" 'comment-region) (define-key map "\C-c\C-u"
'graphviz-dot-uncomment-region) (setq
graphviz-dot-mode-map map) )) ;;; Syntax table (defvar
graphviz-dot-mode-syntax-table nil "Syntax table for
`graphviz-dot-mode'.") (if graphviz-dot-mode-syntax-table
() (let ((st (make-syntax-table))) (modify-syntax-entry ?/
". 124b" st) (modify-syntax-entry ?* ". 23" st)
(modify-syntax-entry ?\n "> b" st) (modify-syntax-entry ?=
"." st) (modify-syntax-entry ?_ "_" st)
(modify-syntax-entry ?- "_" st) (modify-syntax-entry ?>
"." st) (modify-syntax-entry ?[ "(" st)
(modify-syntax-entry ?] ")" st) (modify-syntax-entry ?\"
"\"" st) (setq graphviz-dot-mode-syntax-table st) ))
(defvar graphviz-dot-font-lock-keywords
`(("\\(:?di\\|sub\\)?graph \\(\\sw+\\)" (2
font-lock-function-name-face)) (,(regexp-opt
graphviz-dot-value-keywords 'words) .
font-lock-reference-face) ;; to build the font-locking for
the colors, ;; we need more room for max-specpdl-size, ;;
after that we take the list of symbols, ;; convert them to
a list of strings, and make ;; an optimized regexp from
them (,(let ((max-specpdl-size (max max-specpdl-size
1200))) (regexp-opt graphviz-dot-color-keywords)) .
font-lock-string-face) (,(concat (regexp-opt
graphviz-dot-attr-keywords 'words) "[ \\t\\n]*=") ;; RR -
ugly, really, but I dont know why xemacs does not work ;;
if I change the next car to "1"... (0
font-lock-variable-name-face))) "Keyword highlighting
specification for `graphviz-dot-mode'.") ;;;###autoload
(defun graphviz-dot-mode () "Major mode for the dot
language. \\<graphviz-dot-mode-map>
TAB indents for graph lines.
\\[graphviz-dot-indent-graph]\t- Indentaion function.
\\[graphviz-dot-preview]\t- Previews graph in a buffer.
\\[graphviz-dot-view]\t- Views graph in an external
viewer. \\[graphviz-dot-indent-line]\t- Indents current
line of code. \\[graphviz-dot-complete-word]\t-
Completes the current word.
\\[electric-graphviz-dot-terminate-line]\t- Electric
newline. \\[electric-graphviz-dot-open-brace]\t-
Electric open braces.
\\[electric-graphviz-dot-close-brace]\t- Electric close
braces. \\[electric-graphviz-dot-semi]\t- Electric semi
colons. Variables specific to this mode:
graphviz-dot-dot-program (default `dot') Location of the
dot program. graphviz-dot-view-command (default `doted
%s') Command to run when `graphviz-dot-view' is
executed. graphviz-dot-view-edit-command (default nil)
If the user should be asked to edit the view command.
graphviz-dot-save-before-view (default t) Automatically
save current buffer berore `graphviz-dot-view'.
graphviz-dot-preview-extension (default `png') File type
to use for `graphviz-dot-preview'.
graphviz-dot-auto-indent-on-newline (default t) Whether
to run `electric-graphviz-dot-terminate-line' when
newline is entered. graphviz-dot-auto-indent-on-braces
(default t) Whether to run
`electric-graphviz-dot-open-brace' and
`electric-graphviz-dot-close-brace' when braces are
entered. graphviz-dot-auto-indent-on-semi (default t)
Whether to run `electric-graphviz-dot-semi' when semi
colon is typed. graphviz-dot-toggle-completions (default
nil) If completions should be displayed in the buffer
instead of a completion buffer when
\\[graphviz-dot-complete-word] is pressed repeatedly.
This mode can be customized by running
\\[graphviz-dot-customize]. Turning on Graphviz Dot mode
calls the value of the variable `graphviz-dot-mode-hook'
with no args, if that value is non-nil." (interactive)
(kill-all-local-variables) (use-local-map
graphviz-dot-mode-map) (setq major-mode
'graphviz-dot-mode) (setq mode-name "dot") (setq
local-abbrev-table graphviz-dot-mode-abbrev-table)
(set-syntax-table graphviz-dot-mode-syntax-table) (set
(make-local-variable 'indent-line-function)
'graphviz-dot-indent-line) (set (make-local-variable
'comment-start) "//") (set (make-local-variable
'comment-start-skip) "/\\*+ *\\|//+ *") (set
(make-local-variable 'font-lock-defaults)
'(graphviz-dot-font-lock-keywords)) ;; RR - If user is
running this in the scratch buffer, there is no ;;
buffer file name... (if (buffer-file-name) (set
(make-local-variable 'compile-command) (concat
graphviz-dot-dot-program " -T"
graphviz-dot-preview-extension " \"" buffer-file-name
"\" > \"" (file-name-sans-extension buffer-file-name)
"." graphviz-dot-preview-extension "\""))) (set
(make-local-variable 'compilation-parse-errors-function)
'graphviz-dot-compilation-parse-errors) (if dot-menu
(easy-menu-add dot-menu)) (run-hooks
'graphviz-dot-mode-hook) ) ;;;; Menu definitions (defvar
dot-menu nil "Menu for Graphviz Dot Mode. This menu will
get created automatically if you have the `easymenu'
package. Note that the latest X/Emacs releases contain
this package.") (and (condition-case nil (require
'easymenu) (error nil)) (easy-menu-define dot-menu
graphviz-dot-mode-map "Graphviz Mode menu" '("Graphviz"
["Indent Graph" graphviz-dot-indent-graph t] ["Comment
Out Region" comment-region (mark)] ["Uncomment Region"
graphviz-dot-uncomment-region (mark)] "-" ["Compile"
compile t] ["Preview" graphviz-dot-preview (and
(buffer-file-name) (not (buffer-modified-p)))]
["External Viewer" graphviz-dot-view (buffer-file-name)]
"-" ["Customize..." graphviz-dot-customize t] ))) ;;;;
Compilation ;; note on
graphviz-dot-compilation-parse-errors: ;; It would nicer
if we could just use compilation-error-regexp-alist ;;
to do that, 3 options: ;; - still write
dot-compilation-parse-errors, don't build ;; a return
list, but modify the *compilation* buffer ;; in a way
compilation-error-regexp-alist recognizes the ;; format.
;; to do that, I should globally change
compilation-parse-function ;; to this function, and call
the old value of comp..-parse-fun.. ;; to provide the
return value. ;; two drawbacks are that, every
compilation would be run through ;; this function
(performance) and that in autoload there would ;; be a
chance that this function would not yet be known. ;; -
let the compilation run through a filter that would ;;
modify the output of dot or neato: ;; dot -Tpng
input.dot | filter ;; drawback: ugly, extra work for
user, extra decency ... ;; no-option ;; - modify dot and
neato !!! (PP:15/02/2005 seems to have happend, ;; so
version 0.4.0 should clean this mess up!) (defun
graphviz-dot-compilation-parse-errors (limit-search
find-at-least) "Parse the current buffer for dot errors.
See variable `compilation-parse-errors-functions' for
interface." (interactive) (save-excursion (set-buffer
"*compilation*") (goto-char (point-min)) (setq
compilation-error-list nil) (let (buffer-of-error)
(while (not (eobp)) (cond ((looking-at "^dot\\( -[^
]+\\)* \\(.*\\)") (setq buffer-of-error
(find-file-noselect (buffer-substring-no-properties (nth
4 (match-data t)) (nth 5 (match-data t))))))
((looking-at ".*:.*line \\([0-9]+\\)") (let
((line-of-error (string-to-number
(buffer-substring-no-properties (nth 2 (match-data t))
(nth 3 (match-data t)))))) (setq compilation-error-list
(cons (cons (point-marker) (save-excursion (set-buffer
buffer-of-error) (goto-line line-of-error)
(beginning-of-line) (point-marker)))
compilation-error-list)))) (t t)) (forward-line 1)) )))
;;;; ;;;; Indentation ;;;; (defun
graphviz-dot-uncomment-region (begin end) "Uncomments a
region of code." (interactive "r") (comment-region begin
end '(4))) (defun graphviz-dot-indent-line () "Indent
current line of dot code." (interactive) (if (bolp)
(graphviz-dot-real-indent-line) (save-excursion
(graphviz-dot-real-indent-line)))) (defun
graphviz-dot-real-indent-line () "Indent current line of
dot code." (beginning-of-line) (cond ((bobp) ;; simple
case, indent to 0 (indent-line-to 0)) ((looking-at "^[
\t]*}[ \t]*$") ;; block closing, deindent relative to
previous line (indent-line-to (save-excursion
(forward-line -1) (max 0 (- (current-indentation)
graphviz-dot-indent-width))))) ;; other cases need to
look at previous lines (t (indent-line-to
(save-excursion (forward-line -1) (cond ((looking-at
"\\(^.*{[^}]*$\\)") ;; previous line opened a block ;;
indent to that line (+ (current-indentation)
graphviz-dot-indent-width)) ((and (not (looking-at
".*\\[.*\\].*")) (looking-at ".*\\[.*")) ; TODO:PP : can
be 1 regex ;; previous line started filling ;;
attributes, intend to that start (search-forward "[")
(current-column)) ((and (not (looking-at
".*\\[.*\\].*")) (looking-at ".*\\].*")) ; TODO:PP : "
;; previous line stopped filling ;; attributes, find the
line that started ;; filling them and indent to that
line (while (or (looking-at ".*\\[.*\\].*") (not
(looking-at ".*\\[.*"))) ; TODO:PP : " (forward-line
-1)) (current-indentation)) (t ;; default case, indent
the ;; same as previous line (current-indentation)) )))
))) (defun graphviz-dot-indent-graph () "Indent the
graph/digraph/subgraph where point is at. This will
first teach the beginning of the graph were point is at,
and then indent this and each subgraph in it."
(interactive) (save-excursion ;; position point at start
of graph (while (not (or (looking-at "\\(^.*{[^}]*$\\)")
(bobp))) (forward-line -1)) ;; bracket { one +; bracket
} one - (let ((bracket-count 0)) (while (progn (cond ;;
update bracket-count ((looking-at "\\(^.*{[^}]*$\\)")
(setq bracket-count (+ bracket-count 1))) ;; update
bracket-count ((looking-at "^[ \t]*}[ \t]*$") (setq
bracket-count (- bracket-count 1)))) ;; indent this line
and move on (graphviz-dot-indent-line) (forward-line 1)
;; as long as we are not completed or at end of buffer
(and (> bracket-count 0) (not (eobp)))))))) ;;;; ;;;;
Electric indentation ;;;; (defun
graphviz-dot-comment-or-string-p () (let ((state
(parse-partial-sexp (point-min) (point)))) (or (nth 4
state) (nth 3 state)))) (defun
graphviz-dot-newline-and-indent () (save-excursion
(beginning-of-line) (skip-chars-forward " \t")
(graphviz-dot-indent-line)) (delete-horizontal-space)
(newline) (graphviz-dot-indent-line)) (defun
electric-graphviz-dot-terminate-line () "Terminate line
and indent next line." (interactive) (if
graphviz-dot-auto-indent-on-newline
(graphviz-dot-newline-and-indent) (newline))) (defun
electric-graphviz-dot-open-brace () "Terminate line and
indent next line." (interactive) (insert "{") (if (and
graphviz-dot-auto-indent-on-braces (not
(graphviz-dot-comment-or-string-p)))
(graphviz-dot-newline-and-indent))) (defun
electric-graphviz-dot-close-brace () "Terminate line and
indent next line." (interactive) (insert "}") (if (and
graphviz-dot-auto-indent-on-braces (not
(graphviz-dot-comment-or-string-p))) (progn
(save-excursion (beginning-of-line) (skip-chars-forward
" \t") (graphviz-dot-indent-line)) (newline)
(graphviz-dot-indent-line)))) (defun
electric-graphviz-dot-semi () "Terminate line and indent
next line." (interactive) (insert ";") (if (and
graphviz-dot-auto-indent-on-semi (not
(graphviz-dot-comment-or-string-p)))
(graphviz-dot-newline-and-indent))) ;;;; ;;;; Preview
;;;; (defun graphviz-dot-preview () "Shows an example of
the current dot file in an emacs buffer. This assumes
that we are running GNU Emacs or XEmacs under a
windowing system. See `image-file-name-extensions' for
customizing the files that can be loaded in GNU Emacs,
and `image-formats-alist' for XEmacs." (interactive) ;;
unsafe to compile ourself, ask it to the user (if
(buffer-modified-p) (message "Buffer needs to be
compiled.") (if (string-match "XEmacs" emacs-version) ;;
things are easier in XEmacs... (find-file-other-window
(concat (file-name-sans-extension buffer-file-name) "."
graphviz-dot-preview-extension)) ;; run through all the
extensions for images (let ((l
image-file-name-extensions)) (while (let ((f (concat
(file-name-sans-extension (buffer-file-name)) "." (car
l)))) ;; see if a file matches, might be best also to
check ;; if file is up to date TODO:PP (if
(file-exists-p f) (progn (auto-image-file-mode 1) ;; OK,
this is ugly, I would need to ;; know how I can reload a
file in an existing buffer (if (get-buffer "*preview*")
(kill-buffer "*preview*")) (set-buffer
(find-file-noselect f)) (rename-buffer "*preview*")
(display-buffer (get-buffer "*preview*")) ;; stop
iterating '()) ;; will stop iterating when l is nil
(setq l (cdr l))))) ;; each extension tested and nothing
found, let user know (when (eq l '()) (message "No image
found.")))))) ;;;; ;;;; View ;;;; (defun
graphviz-dot-view () "Runs an external viewer. This
creates an external process every time it is executed.
If `graphviz-dot-save-before-view' is set, the current
buffer is saved before the command is executed."
(interactive) (let ((cmd (if
graphviz-dot-view-edit-command (if (string-match
"XEmacs" emacs-version) (read-shell-command "View
command: " (format graphviz-dot-view-command
(buffer-file-name))) (read-from-minibuffer "View
command: " (format graphviz-dot-view-command
(buffer-file-name)))) (format graphviz-dot-view-command
(buffer-file-name))))) (if graphviz-dot-save-before-view
(save-buffer)) (setq novaproc
(start-process-shell-command (downcase mode-name) nil
cmd)) (message (format "Executing `%s'..." cmd)))) ;;;;
;;;; Completion ;;;; (defvar graphviz-dot-str nil)
(defvar graphviz-dot-all nil) (defvar graphviz-dot-pred
nil) (defvar graphviz-dot-buffer-to-use nil) (defvar
graphviz-dot-flag nil) (defun graphviz-dot-get-state ()
"Returns the syntax state of the current point." (let
((state (parse-partial-sexp (point-min) (point)))) (cond
((nth 4 state) 'comment) ((nth 3 state) 'string) ((not
(nth 1 state)) 'out) (t (save-excursion
(skip-chars-backward "^[,=\\[]{};") (backward-char)
(cond ((looking-at "[\\[,]{};") 'attribute) ((looking-at
"=") (progn (backward-word 1) (if (looking-at
"[a-zA-Z]*color") 'color 'value))) (t 'other)))))))
(defun graphviz-dot-get-keywords () "Return possible
completions for a word" (let ((state
(graphviz-dot-get-state))) (cond ((equal state 'comment)
()) ((equal state 'string) ()) ((equal state 'out)
graphviz-attr-keywords) ((equal state 'value)
graphviz-value-keywords) ((equal state 'color)
graphviz-color-keywords) ((equal state 'attribute)
graphviz-attr-keywords) (t graphviz-attr-keywords))))
(defvar graphviz-dot-last-word-numb 0) (defvar
graphviz-dot-last-word-shown nil) (defvar
graphviz-dot-last-completions nil) (defun
graphviz-dot-complete-word () "Complete word at current
point." (interactive) (let* ((b (save-excursion
(skip-chars-backward "a-zA-Z0-9_") (point))) (e
(save-excursion (skip-chars-forward "a-zA-Z0-9_")
(point))) (graphviz-dot-str (buffer-substring b e))
(allcomp (if (and graphviz-dot-toggle-completions
(string= graphviz-dot-last-word-shown graphviz-dot-str))
graphviz-dot-last-completions (all-completions
graphviz-dot-str (graphviz-dot-get-keywords)))) (match
(if graphviz-dot-toggle-completions "" (try-completion
graphviz-dot-str (mapcar '(lambda (elm) (cons elm 0))
allcomp))))) ;; Delete old string (delete-region b e) ;;
Toggle-completions inserts whole labels (if
graphviz-dot-toggle-completions (progn ;; Update entry
number in list (setq graphviz-dot-last-completions
allcomp graphviz-dot-last-word-numb (if (>=
graphviz-dot-last-word-numb (1- (length allcomp))) 0 (1+
graphviz-dot-last-word-numb))) (setq
graphviz-dot-last-word-shown (elt allcomp
graphviz-dot-last-word-numb)) ;; Display next match or
same string if no match was found (if (not (null
allcomp)) (insert "" graphviz-dot-last-word-shown)
(insert "" graphviz-dot-str) (message "(No match)"))) ;;
The other form of completion does not necessarily do
that. ;; Insert match if found, or the original string
if no match (if (or (null match) (equal match 't))
(progn (insert "" graphviz-dot-str) (message "(No
match)")) (insert "" match)) ;; Give message about
current status of completion (cond ((equal match 't) (if
(not (null (cdr allcomp))) (message "(Complete but not
unique)") (message "(Sole completion)"))) ;; Display
buffer if the current completion didn't help ;; on
completing the label. ((and (not (null (cdr allcomp)))
(= (length graphviz-dot-str) (length match)))
(with-output-to-temp-buffer "*Completions*"
(display-completion-list allcomp)) ;; Wait for a
keypress. Then delete *Completion* window
(momentary-string-display "" (point)) (if
graphviz-dot-delete-completions (delete-window
(get-buffer-window (get-buffer "*Completions*")))) )))))
;;;###autoload (add-to-list 'auto-mode-alist
'("\\.dot\\'" . graphviz-dot-mode)) ;;;
graphviz-dot-mode.el ends here No webmentions were found.