starmath/workben/smath-dump-watch.sh

   1 #!/bin/bash
   2
   3 #
   4 # This file is part of the LibreOffice project.
   5 #
   6 # This Source Code Form is subject to the terms of the Mozilla Public
   7 # License, v. 2.0. If a copy of the MPL was not distributed with this
   8 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   9 #
  10
  11 #    Watches for formula dumps by starmath and renders them
  12 # If starmath is compiled with the macro DEBUG_ENABLE_DUMPASDOT defined.
  13 # shift+enter, in the visual formula editor will make starmath dump a
  14 # graphviz graph of the formula tree structure. This is very useful when
  15 # debugging. The formula is dumped to /tmp/smath-dump.gv-
  16 # This script monitors this file and renders the graph when written,
  17 # after which the formula is displayed using feh.
  18 #
  19 # Usage: Let this script run in the background, e.g. start it in a terminal
  20 # (and don't close the terminal). Then compile starmath with DEBUG_ENABLE_DUMPASDOT
  21 # defined, use the visual formula editor to write something and hit shift+enter.
  22 #
  23 # Note: This won't work on Windows as the /tmp/ folder will be missing.
  24 #
  25 # Author: "Jonas Finnemann Jensen" <jopsen@gmail.com>
  26
  27 touch /tmp/smath-dump.gv;
  28 while inotifywait -q -e close_write /tmp/smath-dump.gv;
  29 do
  30     dot -Tpng < /tmp/smath-dump.gv > /tmp/smath-dump.png; > /dev/null
  31     kill `pidof -s feh`; > /dev/null
  32     feh /tmp/smath-dump.png & > /dev/null
  33 done