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| ;;;; lilypond-font-lock.el --- syntax coloring for LilyPond mode | |
| ;;;; | |
| ;;;; This file is part of LilyPond, the GNU music typesetter. | |
| ;;;; | |
| ;;;; Copyright (C) 1997-2001 Han-Wen Nienhuys <[email protected]>, | |
| ;;;; 2001-2006 Heikki Junes <[email protected]> | |
| ;;;; | |
| ;;;; LilyPond 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 3 of the License, or | |
| ;;;; (at your option) any later version. | |
| ;;;; | |
| ;;;; LilyPond 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 LilyPond. If not, see <http://www.gnu.org/licenses/>. | |
| ;; | |
| ;; Author: 2001-2006: Heikki Junes | |
| ;; * Emacs-mode: new keywords, reserved words, identifiers, notenames, | |
| ;; some dynamics and brackets are font-lock-keywords | |
| ;; * context-dependent syntax-tables | |
| ;; Author: 1997: Han-Wen Nienhuys | |
| ;; Author: 1995-1996 Barry A. Warsaw | |
| ;; 1992-1994 Tim Peters | |
| ;; Created: Feb 1992 | |
| ;; Version: 2.9.29 | |
| ;; Last Modified: 11NOV2006 | |
| ;; Keywords: lilypond languages music notation | |
| ;; This started out as a cannabalised version of python-mode.el, by hwn | |
| ;; For changes see the LilyPond ChangeLog | |
| ;; | |
| ;; TODO: | |
| ;; - handle lexer modes (\header, \melodic) etc. | |
| (defconst LilyPond-font-lock-keywords | |
| (let* ((kwregex (mapconcat (lambda (x) (concat "\\" x)) LilyPond-keywords "\\|")) | |
| (iregex (mapconcat (lambda (x) (concat "\\" x)) LilyPond-identifiers "\\|")) | |
| (ncrwregex (mapconcat (lambda (x) (concat "" x)) LilyPond-non-capitalized-reserved-words "\\|")) | |
| (rwregex (mapconcat (lambda (x) (concat "" x)) LilyPond-Capitalized-Reserved-Words "\\|")) | |
| (duration "\\([ \t]*\\(128\\|6?4\\|3?2\\|16?\\|8\\)[.]*\\([ \t]*[*][ \t]*[0-9]+\\(/[1-9][0-9]*\\)?\\)?\\)") | |
| (longduration "\\([ \t]*\\(\\\\\\(longa\\|breve\\|maxima\\)\\)[.]*\\([ \t]*[*][ \t]*[0-9]+\\(/[1-9][0-9]*\\)?\\)?\\)") | |
| ) | |
| (list | |
| ;; Fonts in use (from GNU Emacs Lisp Reference Manual, elisp.ps): | |
| ;; font-lock- (c)omment / (s)tring / (k)eyword / (b)uiltin / (f)unction-name / | |
| ;; (v)ariable-name / (t)ype / co(n)stant / (w)arning -face | |
| ;; The order below is designed so that proofreading would be possible. | |
| ;; Fontify... | |
| ;; ... (f) identifiers and (k) keywords. | |
| ;; ... (n) user defined indetifiers | |
| ;; ... (v) the right and the left side of '='-marks. | |
| ;; ... (v) reserved words, e.g., FiguredBass. | |
| ;; ... (t) notes and rests | |
| ;; "on top", ... (s) lyrics-mode | |
| ;; "on top", ... (w) horizontal grouping | |
| ;; "on top", ... (f) vertical grouping | |
| ;; "on top", ... (b) expressional grouping | |
| ;; "on top", ... (s) (multiline-)scheme; urgh. one should count the slurs | |
| ;; "on top", ... (s) strings | |
| ;; "on top", ... (c) (multiline-)comments | |
| ;; One should note 'font-lock-multiline' has been possible since Emacs 21.1. | |
| ;; See, e.g., text in "http://emacs.kldp.org/emacs-21.1/etc/NEWS". | |
| ;; ... identifiers (defined above, see iregex) | |
| (cons (concat "\\(\\([_^-]?\\(" iregex "\\)\\)+\\)\\($\\|[] \t(~{}>\\\\_()^*-]\\)") '(1 font-lock-function-name-face)) | |
| ;; ... keywords (defined above, see kwregex) | |
| (cons (concat "\\(\\([_^-]?\\(" kwregex "\\)\\)+\\)\\($\\|[] \t(~{}>\\\\_()^*-]\\)") '(1 font-lock-keyword-face)) | |
| ;; ... user defined identifiers, roughly \[a-zA-Z]+ with single - or _ in between. | |
| '("\\([_^-]?\\\\\\([a-zA-Z[:nonascii:]]\\(?:[-_]?[a-zA-Z[:nonascii:]]\\)*\\)\\)" 1 font-lock-constant-face) | |
| ;; ... the left side of '=' -mark | |
| '("\\([_a-zA-Z.0-9-]+\\)[ \t]*=[ \t]*" 1 font-lock-variable-name-face) | |
| ;; ... the right side of '=' -mark | |
| '("[ \t]*=[ \t]*\\([_a-zA-Z.0-9-]+\\)" 1 font-lock-variable-name-face) | |
| ;; ... reserved words (defined above, see rwregex) | |
| (cons (concat "\\(" rwregex "\\)") 'font-lock-variable-name-face) | |
| ;; ... note or rest with (an accidental and) a duration, e.g., b,?16.*3/4 | |
| (cons (concat "\\(^\\|[ <\{[/~(!)\t\\\|]\\)\\(\\(\\(" ncrwregex "\\)[,']*[?!]?\\|[srR]\\)" duration "?\\)") '(2 font-lock-type-face)) | |
| ;; "on top", ... notes and rests with a long duration | |
| (cons (concat "\\(^\\|[ <\{[/~(!)\t\\\|]\\)\\(\\(\\(" ncrwregex "\\)[,']*[?!]?\\|[srR]\\)" longduration "\\)") '(2 font-lock-type-face t)) | |
| ;; "on top", ... lyrics-mode: fontify everything between '<'...'>' or '{'...'}' | |
| ; URGH, does not know anything about inner brackets. | |
| ; Multiple lines may need refontifying (C-c f). | |
| '("\\(\\\\lyrics[^{<]*\\)\\({[^}]*\\|<[^>]*\\)" 2 font-lock-string-face t) | |
| ;; "on top", ... horizontal grouping, also as postfix syntax '-*': | |
| ;; - brackets '{[]}' | |
| ;; - ties '~' | |
| ;; - ligatures \[, \] | |
| '("\\(-?[][~}{]\\|\\\\[][]\\)" 0 font-lock-reference-face t) | |
| ;; "on top", ... vertical grouping: | |
| ;; - '<>'-chord brackets with '\\'-voice sep., not marcato '->' | |
| ;; - '<< a b >>8' -chords | |
| (cons (concat "\\(\\(-.\\)+\\|[^-^_]\\)\\([<>]+\\(" duration "\\|" longduration "\\)?\\|\\\\\\\\\\)") '(3 font-lock-function-name-face t)) | |
| ;; "on top", ... expressional grouping, also as postfix syntax '-*': | |
| ;; - slurs ( ), \( \), [-^_][()] | |
| ;; - hairpins \<, \>, \! | |
| '("\\(-?\\\\[(<!>)]\\|[-^_]?[()]\\)" 0 font-lock-builtin-face t) | |
| ;; "on top", ... (multiline-)scheme: try find slurs up to 7th | |
| '("[_^-]?#\\(#[ft]\\|-?[0-9.]+\\|\"[^\"]*\"\\|['`]?[a-zA-Z:-]+\\|['`]?([^()]*\\(([^()]*\\(([^()]*\\(([^()]*\\(([^()]*\\(([^()]*\\(([^)]*)[^()]*\\)*)[^()]*\\)*)[^()]*\\)*)[^()]*\\)*)[^()]*\\)*)[^()]*\\)*[^)]*)\\)" 0 font-lock-string-face t) | |
| ;; "on top", ... strings, match also unending strings at eof: | |
| ;; if '\n' was not found, it must be '$' which is eof (?). | |
| '("\\([_^-]?\"\\([^\"\\\\]\\|\\\\.\\|\\\\\n\\)*\\(\"\\|$\\)\\)" 0 font-lock-string-face t) | |
| ;; "on top", ... (multiline-)comments | |
| '("\\(%\\({[^%]*%\\(}\\|\\([^}][^%]*%\\)+}\\)\\|.*\\)\\)" 0 font-lock-comment-face t) | |
| ) | |
| ) | |
| "Additional expressions to fontify in LilyPond mode.") | |
| ;; define a mode-specific abbrev table for those who use such things | |
| (defvar LilyPond-mode-abbrev-table nil | |
| "Abbrev table in use in `LilyPond-mode' buffers.") | |
| (define-abbrev-table 'LilyPond-mode-abbrev-table nil) | |
| (defvar LilyPond-mode-syntax-table nil | |
| "Syntax table used in `LilyPond-mode' buffers.") | |
| (defun LilyPond-mode-set-syntax-table (&optional not-punct) | |
| "Change syntax table according to the argument `not-punct' which contains characters which are given a context dependent non-punctuation syntax: parentheses may be set to parenthesis syntax and characters `-', `^' and `_' may be set to escape syntax." | |
| (if (not not-punct) (setq not-punct '())) | |
| (setq LilyPond-mode-syntax-table (make-syntax-table)) | |
| (let ((defaults | |
| '( | |
| ;; NOTE: Emacs knows only "13"-style (used), XEmacs knows also "1b3b", etc. | |
| ( ?\% . "< 13" ) ; comment starter, 1st char in block-comments | |
| ( ?\n . ">") ; newline: comment ender | |
| ( ?\r . ">") ; formfeed: comment ender | |
| ( ?\\ . "\\" ) ; escape characters (as '\n' in strings) | |
| ( ?\" . "\"" ) ; string quote characters | |
| ;; word constituents (e.g., belonging to a note) | |
| ( ?\' . "w") ( ?\, . "w") ; transposing octaves | |
| ;; punctuation characters (separate symbols from another) | |
| ( ?\$ . "." ) ( ?\& . "." ) | |
| ( ?\* . "." ) ( ?\+ . "." ) ( ?\/ . "." ) ( ?\= . "." ) | |
| ( ?\| . "." ) ; bar line | |
| ))) | |
| ;; all the paren characters are now handled by lily-specific indenting/matching code in lilypond-indent.el | |
| (if (or (memq ?\{ not-punct) (memq ?\} not-punct)) | |
| (setq defaults (cons '( ?\{ . "(} 2" ) (cons '( ?\} . "){ 4" ) defaults))) ; begin and end of a block-comment | |
| (setq defaults (cons '( ?\{ . ". 2" ) (cons '( ?\} . ". 4" ) defaults)))) ; begin and end of a block-comment | |
| (if (or (memq ?\[ not-punct) (memq ?\] not-punct)) | |
| (setq defaults (cons '( ?\[ . "(]" ) (cons '( ?\] . ")[" ) defaults))) | |
| (setq defaults (cons '( ?\[ . "." ) (cons '( ?\] . "." ) defaults)))) | |
| (if (or (memq ?\< not-punct) (memq ?\> not-punct)) | |
| (setq defaults (cons '( ?\< . "(>" ) (cons '( ?\> . ")<" ) defaults))) | |
| (setq defaults (cons '( ?\< . "." ) (cons '( ?\> . "." ) defaults)))) | |
| (if (or (memq ?\( not-punct) (memq ?\) not-punct)) | |
| (setq defaults (cons '( ?\( . "()" ) (cons '( ?\) . ")(" ) defaults))) | |
| (setq defaults (cons '( ?\( . "." ) (cons '( ?\) . "." ) defaults)))) | |
| ;; In LilyPond the following chars serve as escape chars, e.g., c^> d-) e_( , | |
| ;; but they may be set to punctuation chars, since inside strings they should not act as escape chars | |
| (setq defaults (cons (if (memq ?- not-punct) '( ?\- . "\\" ) '( ?\- . "." ) ) defaults)) | |
| (setq defaults (cons (if (memq ?^ not-punct) '( ?^ . "\\" ) '( ?^ . "." ) ) defaults)) | |
| (setq defaults (cons (if (memq ?\_ not-punct) '( ?\_ . "\\" ) '( ?\_ . "." ) ) defaults)) | |
| (mapcar (function | |
| (lambda (x) (modify-syntax-entry | |
| (car x) (cdr x) LilyPond-mode-syntax-table))) | |
| defaults) | |
| (set-syntax-table LilyPond-mode-syntax-table))) | |
| (defun LilyPond-mode-context-set-syntax-table () | |
| "Change syntax table according to current context." | |
| (interactive) | |
| ;; default syntax table sets parentheses to punctuation characters | |
| (LilyPond-mode-set-syntax-table) | |
| ;; find current context | |
| (setq context (parse-partial-sexp (point-min) (point))) | |
| (cond ((nth 3 context)) ; inside string | |
| ((nth 4 context)) ; inside a comment | |
| ((eq (char-syntax (or (char-before (point)) 0)) ?\\)) ; found escape-char | |
| ((and (eq (char-syntax (or (char-before (- (point) 1)) 0)) ?\\) | |
| (memq (char-before (point)) '( ?\) ?\] )))) ; found escape-char | |
| ((memq (char-before (point)) '( ?\) )) | |
| (LilyPond-mode-set-syntax-table '( ?\( ?\) ))) | |
| ((memq (char-before (point)) '( ?\] )) | |
| (LilyPond-mode-set-syntax-table '( ?\[ ?\] ))) | |
| ((memq (char-before (point)) '( ?\> ?\} )) | |
| (LilyPond-mode-set-syntax-table '( ?\< ?\> ?\{ ?\} ?\^ ?\- ?\_ ))) | |
| ((memq (char-after (point)) '( ?\( )) | |
| (LilyPond-mode-set-syntax-table '( ?\( ?\) ))) | |
| ((memq (char-after (point)) '( ?\[ )) | |
| (LilyPond-mode-set-syntax-table '( ?\[ ?\] ))) | |
| ((memq (char-after (point)) '( ?\< ?\{ )) | |
| (LilyPond-mode-set-syntax-table '( ?\< ?\> ?\{ ?\} ?\^ ?\- ?\_ ))) | |
| )) | |