This fixes multiple issues when importing Eagle V6 files.
Crashes occured when arcs of 0-length were found and when parts were
referenced in the schematic that were not found in the library. This
could happen if the library and schematic were different cases.
Fixes: lp:1830564
* https://bugs.launchpad.net/kicad/+bug/1830564
(cherry picked from commit 0e5cc54ec9)
Eagle allows for variants of components to be listed in the schematic.
This patch copies the variant data into the imported schematic item,
prefixing the alternate variant names with "VARIANT_" and keeping the
alternate values.
- changed EAGLE_UNIT enum names from EAGLE_* to EU_*
- renamed ToNanoMeters() to ConvertToNm() and added a comment
- added ToMils() and ToNanoMeters() method
- Also makes the project and file import functions filetype dependent.
- The change from IO_MGR::KICAD to IO_MGR::KICAD_SEXP removes a conflict from a compile definition for KICAD when compiling kicad/import_project.cpp
- !! Eeschema uses Eagle plugin for loading schematics (i.e. it does not
use KiCad format anymore)
- Fixed build errors
- Fixed a few crashes
- Code formatting
All E'STRUCTS' are moved to common except for ERULES (which is
specific to pcbnew and needs its internal units), still in
pcbnew/eagle_plugin.{h,cpp}
In order to get rid of another boost dependency, this also changes
the parsing of the XML from Boost.PropertyTree to wxXml.
To replace boost::optional, an OPTIONAL_XML_ATTRIBUTE class has
been implemented. This could be replaced with std::optional when
C++17 is ready.