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csound-score.el
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;;; csound-score.el --- A major mode for interacting and coding Csound -*- lexical-binding: t; -*-
;; Copyright (C) 2017 - 2023 Hlöðver Sigurðsson
;; Author: Hlöðver Sigurðsson <[email protected]>
;; Version: 0.2.9
;; Package-Requires: ((emacs "25") (shut-up "0.3.2") (multi "2.0.1") (dash "2.16.0") (highlight "0"))
;; URL: https://github.com/hlolli/csound-mode
;; 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 3 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, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This fine includes all helpers and handling of csound-score events
;; for interactive composition
;;; Code:
(require 'csound-font-lock)
(require 'csound-util)
(require 'font-lock)
(require 'dash)
(require 'highlight)
(defun csound-score--align-cols (start end)
(save-excursion
(let ((line-end (line-number-at-pos end))
(max-matrix '()))
;; Create matrix of max lengths
(let ((statements (-> (buffer-substring start end)
(substring-no-properties)
(split-string "\n"))))
(dolist (stm statements)
;; Remove comments and extra whitespaces
(let* ((stm* (->> (replace-regexp-in-string "\\(;\\|//\\).*" "" stm)
csound-util-chomp
;; replace space by _ in [expression]
(replace-regexp-in-string "\\[[^]]*]" #'(lambda (x) (replace-regexp-in-string "\\s-" "_" x)))
(replace-regexp-in-string "\\s-+" " ")))
(param-list (split-string stm* " "))
;; (param-num (length param-list))
(max-matrix-len (length max-matrix))
(index 0))
;; (print stm*)
(dolist (param param-list)
(if (<= max-matrix-len index)
(setq max-matrix (append max-matrix (list (length param)))
index (1+ index))
(progn
(setf (nth index max-matrix)
(max (length param)
(nth index max-matrix)))
(setq index (1+ index))))))))
;; Align the block
(goto-char start)
(while (<= (line-number-at-pos) line-end)
(beginning-of-line)
;; Add a space before comment if non
(save-excursion
(if (and (re-search-forward "\\(^\\|.\\)\\(;\\|//\\)" (line-end-position) t)
(save-match-data (string-match "\\S-" (match-string 1))))
(replace-match "\\1 \\2")))
;; Align the line
(let ((line-num (line-number-at-pos))
(param-length 0)
(index -1))
(while (= (line-number-at-pos) line-num)
;; Align the parameter
(let* ((margin-length (skip-chars-forward "[:space:]"))
(before-comment (looking-at ";\\|//"))
(spaces-to-add
(if (or (zerop param-length) (eolp))
;; after line beginning or before line end
(- margin-length)
(- (if before-comment
;; needed length before comment
(let ((subvec (nthcdr index max-matrix)))
(+ (apply #'+ subvec) (length subvec) 1))
;; needed length before next parameter
(1+ (nth index max-matrix)))
;; current length
(+ param-length margin-length)))))
;; Adjust the margin
(if (< 0 spaces-to-add)
(insert (make-string spaces-to-add ?\040))
(delete-char spaces-to-add))
(if before-comment
(forward-line)
(let ((ex-length
;; length of [expression] before ]
(if (looking-at "\\[") (skip-chars-forward "^]") 0)))
;; Move to the end of next parameter and get the length
(setq param-length
(+ ex-length (skip-chars-forward "^[:space:]")))
(setq index (1+ index))))
;; Exit loop at buffer end
(if (eobp)
(setq line-num 0
line-end 0)))))))))
(defun csound-score-align-block ()
"Align score block so that all parameter are of same space width."
(interactive)
(let ((re "^\\s-*[[:alpha:]$]"))
(if (save-excursion
;; See if point is on an score event line
(beginning-of-line)
(re-search-forward re (line-end-position) t))
(let ((beginning-of-block
(save-excursion
;; Search for beginning of block
(beginning-of-line)
(while (re-search-backward re (line-beginning-position 0) t)
(beginning-of-line))
(point)))
(end-of-block
(save-excursion
;; Search for end of block
(end-of-line)
(while (re-search-forward re (line-end-position 2) t)
(end-of-line))
(point))))
(csound-score--align-cols beginning-of-block end-of-block)))))
(defun csound-score-trim-time (score-string)
(let ((trimmed-string (split-string
(substring-no-properties
score-string)
"\n"))
(min-p2 0)
(closure-list '())
(final-str "")
;; (lex-p2-list '())
(p2-list '())
(last-p3 0))
(dolist (event trimmed-string)
(let* ((lexical-p-list (split-string
(replace-regexp-in-string
"\\s-+" " " (csound-util-chomp event))
" "))
(lex-last-p3 last-p3)
(lex-p2-list (cons (if (< 2 (length lexical-p-list))
(if (string-equal "+" (nth 2 lexical-p-list))
(if (car p2-list)
(+ (car p2-list) lex-last-p3)
last-p3)
(if (string-equal "." (nth 2 lexical-p-list))
(if (car p2-list)
(car p2-list)
0)
(string-to-number
(nth 2 lexical-p-list))))
0)
p2-list)))
(setq p2-list lex-p2-list
closure-list (cons
(lambda (min-time)
(setf (nth 2 lexical-p-list)
(number-to-string
(- (car lex-p2-list)
;;(nth 2 lexical-p-list)
min-time)))
;; (message "%s lastp3: %s" lex-p2-list lex-last-p3)
(string-join lexical-p-list " "))
closure-list)
last-p3 (if (string-equal "." (nth 3 lexical-p-list))
last-p3
(string-to-number
(nth 3 lexical-p-list))))))
;; (message "p2-list: %s" p2-list)
(setq min-p2 (apply #'min p2-list)
closure-list (reverse closure-list))
(dolist (event-fn closure-list)
(setq final-str (concat final-str (funcall event-fn min-p2) "\n")))
;; (message "%s" final-str)
final-str))
(defvar csound-score--last-start)
(defvar csound-score--last-end)
(defun csound-score--flash ()
(hlt-highlight-region
csound-score--last-start
csound-score--last-end
'font-lock-string-face)
(run-with-idle-timer
0.15
nil
(lambda ()
(hlt-unhighlight-region csound-score--last-start csound-score--last-end))))
(defun csound-score-find-instr-def ()
"For a score statement,
jump the cursor to where
its defined in the orchestra.
Sets a mark."
(interactive)
(let* ((instr-on-line (save-excursion
(beginning-of-line)
(search-forward-regexp "\\<i\\s-?\\(\\\".*\\\"\\|[0-9]+\\)"
(line-end-position) t 1)
(match-string-no-properties 1)))
(instr-on-line (replace-regexp-in-string "\\\"" "" instr-on-line))
(search-attempt (save-excursion
(goto-char 0)
(search-forward-regexp (format "\\<instr\\s-+%s" instr-on-line) nil t 1))))
(if search-attempt
(progn (goto-char search-attempt)
(setq csound-score--last-start (- (point) (length (thing-at-point 'symbol)))
csound-score--last-end (1- (point)))
(csound-score--flash)
(recenter-top-bottom))
(message "instrument: %s not found in buffer" instr-on-line))))
(provide 'csound-score)
;;; csound-score.el ends here