これは、オールインワンソリューションです。RnwからPDFを作成して表示します。
具体的には：
- Rnwバッファーを保存して編成し、
- 結果のTeXファイルに特定のLaTeXエンジンを適用し、
- BibTeXエンジンの実行可能ファイル（biber、bibtex8など）を特定します。
- bibファイルがTeXファイルよりも新しい場合、TeXファイルでBibTeXエンジンを実行します。
- LaTeXを再度実行します。6指定されたビューアで結果のPDFを開きます。
上記の手順のいずれかが失敗すると、プロシージャは情報メッセージで終了しようとします。
必要に応じて、Rインスタンスが開かれるか、現在のインスタンスが編みプロセスの表示に使用されます。
LaTeX出力は「TeX-output」バッファに送信されます。これはコンパイルエラーの場合にポップされます。
使用法
Meta-PDF x knit-meを作成および表示します。
Meta- x knit-me-clear中間のLaTeXファイルとknit-me。
書誌には「biblatex」パッケージが必要です。つまり：
\usepackage[
options...
backend=ENGINE,
]{biblatex}
\addbibresource{foo.bib}
ビブ・エンジンの名前は、（例えばbibtex、biber）の解析得られたbackendキーワードを。
\addbibresourceコマンドが解析されて参考文献ファイルが取得されますfoo.bib。TeXファイルより新しい場合は、bibエンジンが実行されます。この点で、\addbibresource多くのコマンドがある場合は最初のコマンドのみが考慮されます。
カスタマイズ
PDFを実際に表示するには、ビューアの実行可能パスを次のように設定します。
(setq pdf-viewer "path/to/pdf-viewer")
SumatraPDFなどのビューアを使用することもできます。このビューアは、再コンパイル時にPDFを自動的に更新し、開いているファイルをブロックせずに新しいコンパイルを妨げます。
デフォルトのLaTeXエンジンはpdflatex（現在のパスで想定）です。カスタマイズ：
(setq latex-engine "newengine"
latex-args "--option-1 --option-2")
もちろん、いくつかの便利なキーにバインドknit-meしたいかもしれませんknit-me-clear。
ノート
で、WindowsのMiKTeXでテストbiberし、bibtex8バックエンドとGNU Emacsの25.1.1。
Elispコード
;; (require 'ess-site) ; assumed in your init file
(defun knit-me-clear ()
"Delete intermediate LaTeX files and run `knkt-me'.
These are based on extensions .aux, .blg, .out, .run.xml, .bbl, .log, -blx.bib"
(interactive)
(check-Rnw)
(let
((file)
(stem (file-name-sans-extension (buffer-file-name))))
(dolist (elt
(list ".aux" ".blg" ".out" ".run.xml" ".bbl" ".log" "-blx.bib"))
(setq file (concat stem elt))
(if (file-exists-p file) (delete-file file))))
(knit-me))
(defun knit-me ()
"Knit->LaTeX-engine->bibtex-engine->LaTeX-engine->View.
Default LaTeX engine is \"pdflatex\" and can be customised with `latex-engine';
default LaTeX arguments are set to nil and can be customised with `latex-args';
default PDF viewer is set to nil and can be customised with `pdf-viewer'.
Bibliography must be set via \"biblatex\" LaTeX package.
Bibliography engine is obtained from \"backend\" option in \"biblatex\" package.
A reference LaTeX bib file is obtained from the first LaTeX command \"\addbibresource{foo.bib}\".
The biblatex-engine is run if the bib file is newer of the TeX file.
If there are multiple \"\addbibresource\" only the first will be used to decide whether to run the biblatex-engine."
(interactive)
;; Default values
(defvar pdf-viewer nil)
(defvar latex-engine "pdflatex")
(defvar latex-args nil)
(check-Rnw)
;;If 1 R-proc found, associate it with buffer;
;;if many found, ask to choose one; if none found, launch and associate
(ess-force-buffer-current "Process to use: ")
;;Save Rnw buffer
(save-buffer)
(let*
(;;Set file paths
(pathstem (file-name-sans-extension (buffer-file-name)))
(namestem (file-name-nondirectory pathstem))
(cur-dir (file-name-directory pathstem))
(rnw-name (concat namestem ".Rnw"))
(tex-name (concat namestem ".tex"))
;;Create LaTeX commmand
(latex-args (concat latex-args " " namestem))
(latex-cmd (concat latex-engine " " latex-args))
;;Create knit commmand
(knit-cmd (format "require(knitr); setwd('%s'); knit('%s')" cur-dir rnw-name))
;;Get R buffer proc
(r-proc (ess-get-process))
(r-buf (ess-get-process-buffer))
;;TeX executable process and bibtex engine/file
(tex-proc)
(tex-buf)
(bibfile (bib-getfile))
(bibengine (bib-getengine))
(bibfile-updated
(file-newer-than-file-p
(concat cur-dir (file-name-nondirectory bibfile) ".bib") (concat pathstem ".tex")))
;;Command success
(success nil)
(error-msg "")
)
(setq default-directory cur-dir)
;; Exit on error
(catch 'exit-func
;;Check bibtex file and engine
(when (not bibfile)
(setq error-msg (bib-getfile t))
(throw 'exit-func nil))
(when (not bibengine)
(setq error-msg (bib-getengine t))
(throw 'exit-func nil))
;; Biber wants .bib
(let ((fail (and (string= bibengine "biber")
(string= (file-name-nondirectory bibfile) (file-name-base bibfile)))))
(setq success (not fail)))
(when (not success)
(setq error-msg
(format "biber wants \\addbibresource{%s%s}" (file-name-base bibfile) ".bib"))
(throw 'exit-func nil))
;; Knitting
(switch-to-buffer-other-window r-buf)
(message knit-cmd)
(ess-eval-linewise knit-cmd nil t nil t)
;; Foll. 3 lines are an alternative to ess-eval
;; (inferior-ess-mark-as-busy r-proc) ; knit immediately after this line
;; (process-send-string r-proc (format "cat(\"%s\");%s\n" knit-cmd knit-cmd)) ; real
;; (ess-wait-for-process r-proc nil)
;; Check for knitting results
(with-current-buffer r-buf
;; Parse last 3 lines
(let ((beg) (end) (out))
(goto-char (point-max))
(setq end (point))
(forward-line -3)
(setq beg (point))
(setq out (buffer-substring-no-properties beg end))
;; Knitting successful?
(setq success "output file: %s\n\n[1] \"%s\"\n> ")
(setq success (string= (format success tex-name tex-name) out))))
(when (not success)
(setq error-msg (concat "Unable to knit " rnw-name))
(throw 'exit-func nil))
;; First LaTeXing
(setq tex-buf (get-buffer-create "TeX-output")) ; Create output buffer or use existing
(with-current-buffer tex-buf
(buffer-disable-undo)
(erase-buffer))
(message "1st latex ...")
(send-r-mess (format "Starting LaTeX (see \"%s\")" (buffer-name tex-buf)))
(send-r-mess latex-cmd)
(setq success (= 0 (call-process latex-engine nil tex-buf t latex-args)))
(goto-char (point-max))
;; Check 1st LaTeX results
(when (not success)
(setq error-msg (concat "Unable to LaTeX " namestem))
(switch-to-buffer-other-window tex-buf)
(other-window 1)
(throw 'exit-func nil))
;; Run bibtex engine
(when bibfile-updated
(message "biblatex ...")
(send-r-mess (concat bibengine " " namestem))
(setq success (= 0 (call-process bibengine nil tex-buf t namestem)))
(goto-char (point-max))
;; Check bibtex results
(when (not success)
(setq error-msg (concat "Unable to " bibengine " " namestem))
(switch-to-buffer-other-window tex-buf)
(other-window 1)
(throw 'exit-func nil)))
;; Second LaTeXing
(message "2nd latex ...")
(send-r-mess latex-cmd)
(setq success (= 0 (call-process latex-engine nil tex-buf t latex-args)))
(goto-char (point-max))
;; Check 2nd LaTeX results
(when (not success)
(setq error-msg (concat "Unable to LaTeX " pathstem))
(switch-to-buffer-other-window tex-buf)
(other-window 1)
(throw 'exit-func nil))
;; View
(if (not pdf-viewer) (throw 'exit-func nil))
(send-r-mess "...and now the viewer")
(goto-char (point-max))
(setq success (file-exists-p pdf-viewer))
(when (not success)
(setq error-msg (concat "Can\\'t find executable " pdf-viewer))
(throw 'exit-func nil))
;; If you need viewer console output, use "(start-process "pdf-viewer" tex-buf ...";
;; but you block tex-buf buffer till the viewer is open
(start-process "pdf-viewer" nil pdf-viewer (concat namestem ".pdf")))
(if success
(if bibfile-updated (message (concat "Updated to " (file-name-nondirectory bibfile))))
(message error-msg)
(send-r-mess error-msg))))
(defun bib-getfile(&optional show-messages)
"Check if 'addbibresource' command and related file exist.
If found, return .bib file full path, else:
if SHOW-MESSAGES is nil return nil, if SHOW-MESSAGES is non-nil return related error."
(save-excursion
(goto-char (point-min))
(re-search-forward "\\\\addbibresource{\\(.+\\)}" nil t))
(let ((fmatch (match-string-no-properties 1))
(success nil)
mess)
(cond
((not fmatch) (setq mess "Missing \\addbibresource command."))
((not (file-exists-p (concat (file-name-sans-extension fmatch) ".bib")))
(setq mess (concat "Missing file: " fmatch ".bib")))
;; if no problem, sucess=message=bib-file-path
(t (setq mess (concat (file-name-directory (buffer-file-name)) fmatch)
success mess)))
(if show-messages mess success)))
(defun bib-getengine(&optional show-messages)
"Find biblatex engine.
If found, engine name, else:
if SHOW-MESSAGES is nil return nil, if SHOW-MESSAGES is non-nil return related error."
(save-excursion
(goto-char (point-min))
(let ((pack (re-search-forward "\\\\usepackage *\\(\\[[^]]*\\)\\] *{ *biblatex *}" nil t))
(bend nil)
mess)
(when pack (setq pack (match-string-no-properties 1)))
(when (and pack
(string-match "[^[:alpha:]]+backend *= *\\([^, \n]+\\)" pack))
(setq bend (match-string 1 pack)))
(cond
((not pack) (setq mess "Missing biblatex package command."))
((not bend) (setq mess "Missing biblatex backend."))
;; if no problem, sucess=message=bib-file-path
(t (setq mess bend)))
(if show-messages mess bend))))
(defun send-r-mess (mess)
"Just send MESS at the end of R console buffer"
(process-send-string (ess-get-process)
(format "cat('%s\\n')\n" mess)))
(defun check-Rnw ()
"Give error if `ess-dialect' is not \"R\""
(if (not (string= "R" ess-dialect))
(error "Not an Rnw buffer")))
rmarkdown::render（経由でshell-command）キーバインディングを実行する短いElisp関数を使用buffer-file-nameして、別のウィンドウのpdfを更新します。