问题描述
谁能告诉我first start-process 和second start-process.显示 pdf 文件的 second start-process 应该运行 only if first start-process 完成没有错误.可能有某种类型的成功退出代码可以被发现，但在这方面我需要一些帮助.
Could anyone please give me hand with the step between the first start-process and the second start-process. The second start-process that displays the pdf-file should run only if the first start-process finishes without errors. There is probably some type of successful exit code that can be spotted, but I would need some help please in that regard.
我愿意接受关于如何最好地确定 first start-process 是否正确完成的建议.一种方法是查看 output 缓冲区以确定最后一行是否等于Process process finished".制作 *.pdf 文件可能需要几秒，即使它没有错误，second start-process 如果它也开始了，就会失败早期的.Sit-for 不是最好的选择，因为如果 first start-processsecond start-process 应该被中止代码> 未正确完成.生成 output 缓冲区也需要几秒钟，因此检查缓冲区中的最后一行也需要等到 first start-process 结束.然而，发现一个成功的退出代码(如果存在这样的事情)会比在输出缓冲区中搜索字符串 equals 更好....
I'm open to suggestions regarding how best to determine whether the first start-process finished without errors. One method would be to look at the output buffer to determine whether the last line is equal to "Process process finished". Making the *.pdf file can take a few seconds even if it is without errors, and the second start-process fails if it begins too early. Sit-for is not the best option, since the second start-process should be aborted if the first start-process did not complete correctly. Generating the output buffer also takes a couple of seconds, so checking the last line in the buffer would also need to wait until the first start-process finishes. However, spotting a successful exit code (if such a thing exists) would be better than searching an output buffer for a string equals . . . .
仅供参考:.latexmkrc $pdflatex 代码行将 *.pdf 的副本放回工作目录，而 .latexmkrc $out_dir 代码行将所有辅助文件放入 /tmp 文件夹中.这是必需的，因为 OSX 的 Tex-Live 不支持 $aux_dir.结果是一个干净的工作目录，只包含 *.tex 和 *.pdf 文件.
FYI: The .latexmkrc $pdflatex line of code puts a copy of the *.pdf back into the working directory, and the .latexmkrc $out_dir line of code puts all of the auxiliary files into the /tmp folder. This is needed because Tex-Live for OSX does not support $aux_dir. The result is a clean working directory containing just *.tex and *.pdf files.
(defun latexmk ()
".latexmkrc should contain the following entries -- without the backslashes:
$pdflatex .= ' && (cp "%D" "%R.pdf")';
$force_mode = 1;
$pdf_mode = 1;
$out_dir = '/tmp';"
(interactive)
(let* (
(process (file-name-nondirectory buffer-file-name))
(output (concat "*" (file-name-nondirectory buffer-file-name) "*") )
(latexmk "/usr/local/texlive/2012/texmf-dist/scripts/latexmk/latexmk.pl")
(arg-1 "-interaction=nonstopmode")
(arg-2 "-file-line-error")
(arg-3 "-synctex=1")
(arg-4 "-r")
(arg-5 "/Users/HOME/.0.data/.0.emacs/.latexmkrc")
(pdf-file (concat "/tmp/" (car (split-string
(file-name-nondirectory buffer-file-name) "\.")) ".pdf"))
(line (format "%d" (line-number-at-pos)))
(skim "/Applications/Skim.app/Contents/SharedSupport/displayline") )
(if (buffer-modified-p)
(save-buffer))
(start-process process output latexmk arg-1 arg-2 arg-3 arg-4 arg-5 buffer-file-name)
;; (if (last line of output buffer is "Process 'process' finished")
(start-process "displayline" nil skim "-b" line pdf-file buffer-file-name)
(switch-to-buffer output)
;; )
))
编辑:基于 Francesco 在以下答案中概述的概念的工作解决方案可在相关线程中找到:https://tex.stackexchange.com/a/156617/26911
EDIT: A working solution based upon the concept outlined by Francesco in the answer below is available in a related thread: https://tex.stackexchange.com/a/156617/26911
推荐答案
这个答案 提供了一种链接异步命令的方法, 使用 sentinels 等待每个命令在运行以下之前终止.
This answer provides a way to chain asynchronous commands, using sentinels to wait for each command to terminate before running the following.
您需要调整哨兵以使用 process-exit-status.一个最小的工作示例应该是这样的:
You need to adapt the sentinel in order to check the process exit status using process-exit-status. A minimal working example for you should be along the lines of:
(defun run-latexmk ()
"Asynchronously run `latexmk' and attach a sentinel to it"
(let ((process (start-process "latexmk" "*output*"
"/bin/sh" "-c" "echo KO; false")))
(set-process-sentinel process 'latexmk-sentinel)))
(defun latexmk-sentinel (p e)
"Display the pdf if `latexmk' was successful"
(when (= 0 (process-exit-status p))
(start-process "displaypdf" "*output*"
"/bin/echo" "DISPLAY PDF")))
;; Example use
(with-current-buffer (get-buffer-create "*output*") (erase-buffer))
(run-latexmk)
这篇关于Emacs:如果 latexmk 完成，则显示 pdf，否则显示错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！