mirror of
https://github.com/cookiengineer/audacity
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ae2bbb3276
Provide built-in Nyquist function to call scripting command GetInfo, and return result as LISP list.
77 lines
3.3 KiB
Common Lisp
77 lines
3.3 KiB
Common Lisp
; init.lsp -- default Nyquist startup file
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(load "nyinit.lsp" :verbose nil)
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; add your customizations here:
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; e.g. (setf *default-sf-dir* "...")
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; (load "test.lsp")
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;; "_" (UNDERSCORE) - translation function
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;;
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;; Third party plug-ins are not translated by gettext in Audacity, but may include a
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;; list of translations named *local*. The format of *locale* must be:
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;; (LIST (language-list) [(language-list) ...])
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;; Each language-list is an a-list in the form:
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;; ("cc" ((list "string" "translated-string") [(list "string" "translated-string") ...]))
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;; where "cc" is the quoted country code.
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;;
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(setf underscore (function _))
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;;
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(defun _(txt)
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(setf translated nil)
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(when (boundp '*locale*)
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(if (not (listp *locale*))
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(format t "Warning: Invalid *locale* (not a list).~%")
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(let ((locale (get '*audacity* 'language)))
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(if (not (setf language-list (assoc locale *locale* :test 'string-equal)))
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(format t "Warning: No language-list for \"~a\" in *locale*.~%" locale)
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(if (/= (length language-list) 2)
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(format t "Error: Invalid \"~a\" language list in *locale*.~%" locale)
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; Get just the list of substitution pairs
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(let ((language-list (second language-list)))
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(if (not (listp language-list))
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(format t "Warning: No translations for \"~a\" in *locale*.~%" locale)
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(let ((translation (assoc txt language-list :test 'string=)))
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(if (not translation)
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(format t "Warning: No ~a translations for \"~a\".~%" locale txt)
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(if (not (and (listp translation)
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(= (length translation) 2)))
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(format t "Error: Invalid translation for ~a in *locale*.~%" txt)
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(setf translated (second translation))))))))))))
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(if translated
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translated
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(funcall underscore txt)))
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;;; Some helpers for parsing strings returned by (aud-do "GetInfo: ...
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(defun eval-string (string)
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;;; Evaluate a string as a LISP expression.
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;;; If 'string' is not a valid LISP expression, the behaviour is undefined.
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(eval (read (make-string-input-stream string))))
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(defmacro quote-string (string)
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;;; Prepend a single quote to a string
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`(setf ,string (format nil "\'~a" ,string)))
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(defun aud-get-info (str)
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;;; Return "GetInfo: type=type" as Lisp list, or throw error
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;;; Audacity 2.3.0 does not fail if type is not recognised, it
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;;; falls back to a default, so test for valid types.
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;;; 'Commands+' is not supported in Audacity 2.3.0
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(let (type
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info
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(types '("Commands" "Menus" "Preferences"
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"Tracks" "Clips" "Envelopes" "Labels" "Boxes")))
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;Case insensitive search, then set 'type' with correct case string, or NIL.
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(setf type (first (member str types :test 'string-equal)))
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(if (not type)
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(error (format nil "bad argument '~a' in (aud-get-info ~a)" str str)))
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(setf info (aud-do (format nil "GetInfo: type=~a format=LISP" type)))
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(if (not (last info))
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(error (format nil "(aud-get-info ~a) failed.~%" str)))
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(let ((info-string (first info)))
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(eval-string (quote-string info-string)))))
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