tavo/emacs-latex-preview-server
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better implementation

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tavo-wasd 2024-06-23 11:07:40 -06:00
parent 5d999b01b2
commit f2a0b1701e
4 changed files with 26 additions and 30 deletions
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18
index.php Normal file
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@ -0,0 +1,18 @@
<?php
$host = $_SERVER['HTTP_HOST'];
$type = $_POST['type'];
if ($type == "tex") {
move_uploaded_file($_FILES["file"]["tmp_name"], "tmp.tex");
$output = shell_exec("latex -interaction nonstopmode tmp.tex");
echo "http://$host/tmp.dvi";
}
if ($type == "dvi") {
$dpi = isset($_POST['dpi']) ? intval($_POST['dpi']) : 200;
move_uploaded_file($_FILES["file"]["tmp_name"], "tmp.dvi");
shell_exec("dvipng -D $dpi -T tight -bg Transparent -o tmp.png tmp.dvi");
echo "http://$host/tmp.png";
}
?>

10
public/index.php
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<?php
move_uploaded_file($_FILES["file"]["tmp_name"], "tmp.tex");
$dpi = isset($_POST['dpi']) ? intval($_POST['dpi']) : 200;
$output = shell_exec("./tex2png.sh tmp.tex $dpi");
if ($output !== null) {
$host = $_SERVER['HTTP_HOST'];
echo "http://$host/$output";
}
?>

12
public/tex2png.sh
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#!/bin/sh
file="$1"
dpi="$2"
[ "$file" ] || exit 1
out="${file%.tex}.png"
makepng() {
latex -interaction nonstopmode "$file" >/dev/null 2>&1 || return 1
dvipng -D "$dpi" -T tight -bg Transparent -o "$out" "${file%.tex}.dvi" >/dev/null 2>&1 || return 1
}
makepng && echo "$out" || exit 1

16
texpngweb.el
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@ -3,13 +3,13 @@
(if (eq system-type 'android)
(progn ;; Android custom org-latex-preview
(setq org-preview-latex-process-alist
'((texpngweb
:programs ("curl")
:description "tex > png"
:message "you need to install curl."
:image-input-type "tex"
'((dvipngweb
:programs ("latex" "dvipng")
:description "dvi > png"
:message "you need to install the programs: latex and dvipng."
:image-input-type "dvi"
:image-output-type "png"
:image-size-adjust (1.0 . 1.0)
:latex-compiler ("")
:image-converter ("curl -F \"file=@%f\" -F \"dpi=%D\" http://0.0.0.0:8000 && curl http://0.0.0.0:8000/tmp.png -o %O"))))
(setq org-latex-create-formula-image-program 'texpngweb)))
:latex-compiler ("curl -F \"file=@%f\" -F \"type=tex\" 0.0.0.0:8000 && curl 0.0.0.0:8000/tmp.dvi -o %O")
:image-converter ("curl -F \"file=@%f\" -F \"type=dvi\" -F \"dpi=%D\" -o %O 0.0.0.0:8000 && curl 0.0.0.0:8000/tmp.png -o %O"))))
(setq org-latex-create-formula-image-program 'dvipngweb)))