Merge pull request #93 from hasecilu/add_dependencies_btw

 Add Arch Linux dependencies

gettingstarted/dependencies.md

@@ -121,13 +121,17 @@ to be installed. It is very common to have to adjust the one-line command below
 (usually provided under a different name).
 
 A single command to install the dependencies on Ubuntu-based systems (last adjusted for 22.04.3 LTS):
-```
+```sh
 sudo apt install cmake cmake-gui libboost-date-time-dev libboost-dev libboost-filesystem-dev libboost-graph-dev libboost-iostreams-dev libboost-program-options-dev libboost-python-dev libboost-regex-dev libboost-serialization-dev libboost-thread-dev libcoin-dev libeigen3-dev libgts-bin libgts-dev libkdtree++-dev libmedc-dev libocct-data-exchange-dev libocct-ocaf-dev libocct-visualization-dev libopencv-dev libproj-dev libpyside2-dev libqt5opengl5-dev libqt5svg5-dev qtwebengine5-dev libqt5x11extras5-dev libqt5xmlpatterns5-dev libshiboken2-dev libspnav-dev libvtk7-dev libx11-dev libxerces-c-dev libzipios++-dev occt-draw pyside2-tools python3-dev python3-matplotlib python3-packaging python3-pivy python3-ply python3-pyside2.qtcore python3-pyside2.qtgui python3-pyside2.qtsvg python3-pyside2.qtwidgets python3-pyside2.qtnetwork python3-pyside2.qtwebengine python3-pyside2.qtwebenginecore python3-pyside2.qtwebenginewidgets python3-pyside2.qtwebchannel python3-markdown python3-git qtbase5-dev qttools5-dev swig libyaml-cpp-dev
 ```
 To install dependencies on Fedora systems (Derived from the [RPM spec](https://src.fedoraproject.org/rpms/freecad)):
-```
+```sh
 sudo dnf install clang cmake gcc-c++ gettext dos2unix doxygen swig graphviz gcc-gfortran desktop-file-utils freeimage-devel libXmu-devel mesa-libGL-devel mesa-libGLU-devel libglvnd-devel opencascade-devel Coin4-devel python3-devel python3-matplotlib python3-pivy boost-devel eigen3-devel tbb-devel qt5-qtbase-devel qt5-qtsvg-devel qt5-qtxmlpatterns-devel qt5-qttools-devel qt5-qttools-static qt5-qtwebengine-devel xerces-c xerces-c-devel libspnav-devel python3-shiboken2-devel python3-pyside2-devel pyside2-tools smesh-devel zipios++-devel python3-pycxx-devel libicu-devel vtk-devel med-devel libkdtree++-devel libappstream-glib python3-pivy python3-matplotlib python3-collada python3-pyside2 qt5-assistant
 ```
+To install dependencies on Arch Linux based systems:
+```sh
+sudo pacman -S boost boost-libs cgns cmake coin eigen fmt git glew graphviz jsoncpp libharu liblas libspnav med-openmpi netcdf ninja nlohmann-json openmpi openvdb opencascade openvr ospray pdal pugixml pyside2 pyside2-tools python-gitpython python-markdown python-matplotlib python-mpi4py python-pip python-pivy python-ply python-shiboken2 python-yaml qt5-svg qt5-tools qt5-webengine qt5-x11extras qt5-xmlpatterns shiboken2 swig utf8cpp verdict xerces-c
+```
 
 ### Windows
 

technical/ObjectDeletion.md

@@ -14,17 +14,17 @@ is not tidy.
 
 There are two methods in the ViewProvider that deal with this situation.
 
-'''c++
+```c++
 bool canDelete(App::DocumentObject *obj)
-'''
+```
 is called when Std_Delete is asked to delete obj, BUT it is called for each of
 obj's parent in the InList.  This is where you would decide if you will allow
 one of your children can be deleted.  In effect, the is canDeleteMyChildObject().
 Return true to allow the child to be deleted, or false to prevent the deletion.
 
-'''c++
+```c++
 bool onDelete(const std::vector<std::string> & parms)
-'''
+```
 is also called when when Std_Delete is asked to delete a DocumentObject, but in
 this case it is the DocumentObject's ViewProvider that is called.  Return true
 to allow deletion of the DocumentObject, or false to prevent the deletion.

technical/PropertyChanges.md

@@ -15,7 +15,7 @@ Recommended reading:
 - When a Property's value changes, its PropertyContainer (eventually a DocumentObject) executes the onChanged method with the Property as a parameter.  This is where you will take appropriate action based on the new property value.
 - Be cautious when inserting logic into onChanged and execute as it is possible to create a loop.
 
-'''c++
+```c++
 void myFeature::execute()
 {
     MyProperty->setValue(foo());
@@ -26,7 +26,7 @@ void myFeature::onChanged(App::Property property)
         execute();
     }
 }
-'''
+```
 - The other interesting method involving property changes is mustExecute.   This is where you control whether or not your object participates in the next recompute cycle.