forked from mirrors/org-mode
org-latex-preview: Refactor async formula function
* lisp/org-latex-preview.el (org-create-preview-string, org-create-latex-preview, org-latex-replace-fragments, org-create-formula-image-async): Refactor `org-create-formula-image-async', specifically by splitting up the texfile creation, texfile compilation, image extraction, and cleanup phases into individual functions (`org-preview-latex--create-tex-file', `org-latex-preview--tex-compile-async', `org-latex-preview--image-extract-async', `org-latex-preview--cleanup-callback') and use `org-async-call' for managing async. Along the way a few other minor tweaks have crept in.
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SHA256:eobz41Mnm0/iYWBvWThftS0ElEs1ftBr6jamutnXc/A
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@ -412,8 +412,8 @@ The way this is done is set by PROCESSING-TYPE, which can be either:
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- an entry in `org-preview-latex-process-alist', in which case the
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math fragment is replaced with `org-create-latex-export'.
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Generated image files are placed in DIR with the prefix PREFIX. Note
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that PREFIX may itself contain a directory path component.
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Generated image files are placed in DIR with the prefix PREFIX.
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Note that PREFIX may itself contain a directory path component.
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When generating output files, MSG will be `message'd if given."
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(let* ((cnt 0))
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@ -515,8 +515,7 @@ Some of the options can be changed using the variable
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(cdr (assq processing-type org-preview-latex-process-alist)))
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(imagetype (or (plist-get processing-info :image-output-type) "png"))
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document-strings
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locations
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movefiles existfiles)
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locations movefiles)
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(save-excursion
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(dolist (element elements)
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(let* ((beg (org-element-property :begin element))
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@ -548,138 +547,187 @@ Some of the options can be changed using the variable
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(list :foreground fg :background bg))))
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(if (file-exists-p movefile)
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(org-place-latex-image beg end movefile imagetype)
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(push (org-create-preview-string value options)
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(push (org-preview-latex--tex-styled value options)
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document-strings)
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(push (cons beg end) locations)
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(push movefile movefiles)))))
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(when movefiles
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(org-create-formula-image-async
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processing-type
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(mapconcat #'identity (nreverse document-strings) "\n")
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(nreverse document-strings)
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(nreverse locations)
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(nreverse movefiles)))))
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(defun org-create-formula-image-async (processing-type string locations movefiles)
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"Preview math fragments in STRING asynchronously with method PROCESSING-TYPE.
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(defun org-create-formula-image-async (processing-type preview-strings locations movefiles)
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"Preview PREVIEW-STRINGS asynchronously with method PROCESSING-TYPE.
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LOCATIONS are buffer locations denoting the beginning and end of
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each snippet in STRING. Each entry is a cons cell.
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each snippet of PREVIEW-STRINGS. Each entry is a cons cell.
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The previews are copied (in lexicographic order) to the files in
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MOVEFILES."
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(interactive "P")
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(let* ((processing-type (or processing-type
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org-preview-latex-default-process))
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(let* ((processing-type
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(or processing-type org-preview-latex-default-process))
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(processing-info
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(cdr (assq processing-type org-preview-latex-process-alist)))
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(alist-get processing-type org-preview-latex-process-alist))
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(programs (plist-get processing-info :programs))
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(error-message (or (plist-get processing-info :message) ""))
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(image-input-type (plist-get processing-info :image-input-type))
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(image-output-type (plist-get processing-info :image-output-type))
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(post-clean (or (plist-get processing-info :post-clean)
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'(".dvi" ".xdv" ".pdf" ".tex" ".aux" ".log"
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".svg" ".png" ".jpg" ".jpeg" ".out")))
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(latex-header
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(let ((header (concat
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(or (plist-get processing-info :latex-header)
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(org-latex-make-preamble
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(org-combine-plists
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(org-export-get-environment (org-export-get-backend 'latex))
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'(:time-stamp-file nil))
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org-format-latex-header 'snippet))
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"\n\\RequirePackage"
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"[active,tightpage,auctex,displaymath,graphics,textmath,floats]"
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"{preview}\n")))
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(if org-preview-use-precompilation
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(concat "%&" (org-preview-precompile header))
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header)))
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(latex-compiler (plist-get processing-info :latex-compiler))
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(texfilebase
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(make-temp-name
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(expand-file-name "orgtex" temporary-file-directory)))
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(texfile (concat texfilebase ".tex"))
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(image-size-adjust (or (plist-get processing-info :image-size-adjust)
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(error-message (or (plist-get processing-info :message) "")))
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(dolist (program programs)
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(org-check-external-command program error-message))
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(let* ((extended-info
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(append processing-info
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(list :locations locations
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:movefiles movefiles
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:texfile (org-preview-latex--create-tex-file
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processing-info preview-strings))))
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(tex-compile-async
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(org-latex-preview--tex-compile-async extended-info))
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(img-extract-async
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(org-latex-preview--image-extract-async extended-info)))
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(plist-put (cdr tex-compile-async) :success img-extract-async)
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(plist-put (cdr tex-compile-async) :failure img-extract-async)
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(plist-put (cdr img-extract-async) :success
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#'org-latex-preview--cleanup-callback)
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(apply #'org-async-call tex-compile-async))))
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(defun org-preview-latex--create-tex-file (processing-info preview-strings)
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"Create a LaTeX file based on PROCESSING-INFO and PREVIEW-STRINGS.
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More specifically, a preamble will be generated based on
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PROCESSING-INFO. Then, if `org-preview-use-precompilation' is
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non-nil, a precompiled format file will be generated if needed
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and used. Otherwise the preamble is used normally.
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Within the body of the created LaTeX file, each of
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PREVIEW-STRINGS will be placed in order, wrapped within a
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\"preview\" environment.
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The path of the created LaTeX file is returned."
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(let ((tex-temp-name
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(expand-file-name (concat (make-temp-name "org-tex-") ".tex")
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temporary-file-directory))
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(header
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(concat
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(or (plist-get processing-info :latex-header)
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(org-latex-make-preamble
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(org-combine-plists
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(org-export-get-environment (org-export-get-backend 'latex))
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'(:time-stamp-file nil))
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org-format-latex-header 'snippet))
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"\n\\usepackage[active,tightpage,auctex]{preview}\n")))
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(with-temp-file tex-temp-name
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(insert (if org-preview-use-precompilation
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(concat "%&" (org-preview-precompile header))
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header))
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(insert "\n\\begin{document}\n")
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(dolist (str preview-strings)
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(insert
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"\n\\begin{preview}\n"
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str
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"\n\\end{preview}\n"))
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(insert "\n\\end{document}\n"))
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tex-temp-name))
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(defun org-latex-preview--tex-compile-async (extended-info)
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"Create an `org-async-call' spec to compile the texfile in EXTENDED-INFO."
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(let* ((tex-process-buffer
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(with-current-buffer
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(get-buffer-create "*Org Preview LaTeX Output*")
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(erase-buffer)
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(current-buffer)))
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(tex-compile-command
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(pcase (plist-get extended-info :latex-compiler)
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((and (pred stringp) cmd) cmd)
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((and (pred consp) cmds)
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(when (> (length cmds) 1)
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(warn "Preview :latex-compiler must now be a single command. %S will be ignored."
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(cdr cmds)))
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(car cmds))))
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(texfile (plist-get extended-info :texfile))
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(tex-command-spec
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`((?o . ,(shell-quote-argument (file-name-directory texfile)))
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(?b . ,(shell-quote-argument (file-name-base texfile)))
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(?B . ,(shell-quote-argument (file-name-sans-extension texfile)))
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(?f . ,(shell-quote-argument texfile))))
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(tex-formatted-command
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(split-string-shell-command
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(format-spec tex-compile-command tex-command-spec))))
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(list ; `org-async-call' arguments
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tex-formatted-command
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:buffer tex-process-buffer
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:dir temporary-file-directory
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:info extended-info
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:failure "LaTeX compilation for preview failed! (error code %d)")))
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(defun org-latex-preview--image-extract-async (extended-info)
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"Create an `org-async-call' spec to extract images according to EXTENDED-INFO."
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(let* ((img-process-buffer
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(with-current-buffer
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(get-buffer-create "*Org Preview Convert Output*")
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(erase-buffer)
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(current-buffer)))
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(img-extract-command
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(pcase
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(or (and (string= (plist-get org-format-latex-options :background)
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"Transparent")
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(plist-get extended-info :transparent-image-converter))
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(plist-get extended-info :image-converter))
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((and (pred stringp) cmd) cmd)
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((and (pred consp) cmds)
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(when (> (length cmds) 1)
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(warn "Preview converter must now be a single command. %S will be ignored."
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(cdr cmds)))
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(car cmds))))
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(image-size-adjust (or (plist-get extended-info :image-size-adjust)
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'(1.0 . 1.0)))
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(scale (* (car image-size-adjust)
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(or (plist-get org-format-latex-options :scale) 1.0)))
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(dpi (* scale (if (display-graphic-p) (org--get-display-dpi) 140.0)))
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(image-converter
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(or (and (string= (plist-get org-format-latex-options :background)
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"Transparent")
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(plist-get processing-info :transparent-image-converter))
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(plist-get processing-info :image-converter)))
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(resize-mini-windows nil))
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(dolist (program programs)
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(org-check-external-command program error-message))
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(if (string-suffix-p string "\n")
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(aset string (1- (length string)) ?%)
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(setq string (concat string "%")))
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(texfile (plist-get extended-info :texfile))
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(img-command-spec
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`((?o . ,(shell-quote-argument (file-name-directory texfile)))
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(?b . ,(shell-quote-argument (file-name-base texfile)))
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(?B . ,(shell-quote-argument (file-name-sans-extension texfile)))
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(?D . ,(shell-quote-argument (format "%s" dpi)))
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(?S . ,(shell-quote-argument (format "%s" (/ dpi 140.0))))
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(?f . ,(shell-quote-argument
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(expand-file-name
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(concat (file-name-base texfile)
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"." (plist-get extended-info :image-input-type))
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(file-name-directory texfile))))))
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(img-formatted-command
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(split-string-shell-command
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(format-spec img-extract-command img-command-spec))))
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(list ; `org-async-call' arguments
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img-formatted-command
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:buffer img-process-buffer
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:info extended-info
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:failure "LaTeX preview image conversion failed! (error code %d)")))
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(with-temp-file texfile
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(insert latex-header)
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(insert "\n\\begin{document}\n"
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string
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"\n\\end{document}\n"))
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(let* ((default-directory temporary-file-directory)
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(tex-process)
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(image-process)
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(basename (file-name-base texfilebase))
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(out-dir (or (file-name-directory texfile) default-directory))
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(spec `((?o . ,(shell-quote-argument out-dir))
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(?b . ,(shell-quote-argument basename))
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(?B . ,(shell-quote-argument texfilebase))))
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(spec-tex `((?f . ,(shell-quote-argument texfile))))
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(spec-img `((?D . ,(shell-quote-argument (format "%s" dpi)))
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(?S . ,(shell-quote-argument (format "%s" (/ dpi 140.0))))
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(?f . ,(shell-quote-argument
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(expand-file-name
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(concat basename "." image-input-type) out-dir))))))
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(setq tex-process
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(make-process :name (format "Org-Preview-%s" (file-name-base texfile))
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:buffer (format "*Org Preview LaTeX Output*")
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:command (split-string-shell-command
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(format-spec (car latex-compiler)
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(append spec spec-tex)))
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:sentinel (lambda (proc signal)
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(unless (process-live-p proc)
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(dolist (e (delete (concat "." image-input-type) post-clean))
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(when (file-exists-p (concat texfilebase e))
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(delete-file (concat texfilebase e))))))))
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(when (equal processing-type 'dvisvgm)
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(let (inhibit-quit)
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(while (process-live-p tex-process)
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(accept-process-output tex-process))))
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(setq image-process
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(make-process
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:name (format "Org-Convert-%s-%s" (file-name-base texfile)
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(symbol-name processing-type))
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:buffer (format "*Org Convert %s %s*"
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(file-name-base texfile)
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(symbol-name processing-type))
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:command (split-string-shell-command
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(format-spec (car image-converter)
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(append spec spec-img)))
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:sentinel
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(lambda (proc signal)
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(when (string= signal "finished\n")
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(let ((images (file-expand-wildcards
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(concat texfilebase "*." image-output-type)
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'full)))
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(save-excursion
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(cl-loop
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for (block-beg . block-end) in locations
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for image-file in images
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for movefile in movefiles
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do (copy-file image-file movefile 'replace)
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do (org-place-latex-image block-beg block-end movefile image-output-type)))))
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(unless (process-live-p proc)
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(mapc #'delete-file
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(file-expand-wildcards
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(concat texfilebase "*." image-output-type) 'full))
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(delete-file (concat texfilebase "." image-input-type)))))))))
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(defun org-latex-preview--cleanup-callback (_exit-code _stdout extended-info)
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"Move and delete files after image creation, in accords with EXTENDED-INFO."
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(let* ((basename (file-name-sans-extension (plist-get extended-info :texfile)))
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(image-output-type (plist-get extended-info :image-output-type))
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(images
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(file-expand-wildcards
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(concat basename "*." image-output-type)
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'full))
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(clean-exts
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(or (plist-get extended-info :post-clean)
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'(".dvi" ".xdv" ".pdf" ".tex" ".aux" ".log"
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".svg" ".png" ".jpg" ".jpeg" ".out")))
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(locations (plist-get extended-info :locations))
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(movefiles (plist-get extended-info :movefiles)))
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(save-excursion
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(cl-loop
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for (block-beg . block-end) in locations
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for image-file in images
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for movefile in movefiles
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do (copy-file image-file movefile 'replace)
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do (org-place-latex-image block-beg block-end movefile image-output-type)))
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(dolist (ext clean-exts)
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(when (file-exists-p (concat basename ext))
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(delete-file (concat basename ext))))))
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(defun org-preview-precompile (header)
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"Precompile/dump LaTeX HEADER (preamble) text.
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@ -709,36 +757,32 @@ process."
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'("latex -ini -jobname=%b \"&latex\" mylatexformat.ltx %f")
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"fmt")))))
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(defun org-create-preview-string (value options &optional export-p)
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"Generate LaTeX string suitable for use with preview.sty.
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(defun org-preview-latex--tex-styled (value options &optional html-p)
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"Apply LaTeX style commands to VALUE based on OPTIONS.
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VALUE is the math fragment text to be previewed.
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OPTIONS is the plist `org-format-latex-options' with customized
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color information for this run.
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EXPORT-P, if true, uses colors required for HTML processing."
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(let* ((fg (pcase (plist-get options (if export-p :html-foreground :foreground))
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HTML-P, if true, uses colors required for HTML processing."
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(let* ((fg (pcase (plist-get options (if html-p :html-foreground :foreground))
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('default (org-latex-color-format (org-latex-color :foreground)))
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((pred null) (org-latex-color-format "Black"))
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(color (org-latex-color-format color))))
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(bg (pcase (plist-get options (if export-p :html-background :background))
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(bg (pcase (plist-get options (if html-p :html-background :background))
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('default (org-latex-color :background))
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("Transparent" nil)
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(bg (org-latex-color-format bg)))))
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(concat "\n\n\\definecolor{fg}{rgb}{" fg "}%\n"
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(and bg (format "\\definecolor{bg}{rgb}{%s}%%\n" bg))
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"\\begin{preview}"
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(and bg "\\pagecolor{bg}%\n")
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"{\\color{fg}\n"
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value
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"}\n\\end{preview}\n\n")))
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(concat (and bg (format "\\pagecolor[rgb]{%s}%%\n" bg))
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(and fg (format "\\color[rgb]{%s}%%\n" fg))
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value)))
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(defun org-create-latex-export (processing-type element prefix dir &optional block-type)
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"Create a export of the LaTeX math fragment ELEMENT using PROCESSING-TYPE.
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Generated image files are placed in DIR with the prefix PREFIX. Note
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that PREFIX may itself contain a directory path component.
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Generated image files are placed in DIR with the prefix PREFIX.
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Note that PREFIX may itself contain a directory path component.
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BLOCK-TYPE determines whether the result is placed inline or as a paragraph."
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(let* ((processing-info
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