Add a schematic importer for gEDA and Lepton EDA .sch files.
The importer parses the full gEDA file format including
components, nets, buses, attributes, text, graphical
primitives, and paths with bezier curves.
A builtin symbol library ships 39 standard gEDA symbols so
import works without a gEDA installation. Symbol resolution
follows an 11-step search chain matching native gEDA/Lepton
conventions across environment variables, system paths, XDG
directories, RC files, config files, and project directories.
Last-found-wins priority matches native gEDA behavior.
RC file parsing handles gafrc and gschemrc component-library
directives. Lepton-EDA INI configs (lepton.conf, geda.conf)
are also parsed.
Project import reads gEDA .prj files and discovers schematics
and PCBs automatically.
File format knowledge and embedded symbol definitions derived
from gEDA/gaf (C) 1998-2010 Ales Hvezda, 1998-2016 gEDA
Contributors, and Lepton EDA (C) 2017-2024 Lepton EDA
Contributors. Both licensed under GNU GPL v2 or later.
Seth Hillbrand
e12751da40