Compatibility for older versions of cmake, python, open cascade, boost

cmake/CMakeLists.txt

@@ -17,7 +17,7 @@
 #                                                                              #
 ################################################################################
 
-cmake_minimum_required (VERSION 2.6)
+cmake_minimum_required (VERSION 2.8.5)
 
 project (IfcOpenShell)
 
@@ -297,11 +297,23 @@ if(COMPILE_SCHEMA)
     set(IFC_RELEASE_NOT_USED "2x3" "4")
     
     # Install pyparsing if necessary
-    execute_process(COMMAND ${PYTHON_EXECUTABLE} -m pip "list" OUTPUT_VARIABLE PYTHON_PACKAGE_LIST)
+    execute_process(COMMAND ${PYTHON_EXECUTABLE} -m pip freeze OUTPUT_VARIABLE PYTHON_PACKAGE_LIST)
+    if ("${PYTHON_PACKAGE_LIST}" STREQUAL "")
+        execute_process(COMMAND pip freeze OUTPUT_VARIABLE PYTHON_PACKAGE_LIST)
+        if ("${PYTHON_PACKAGE_LIST}" STREQUAL "")
+            message(WARNING "Failed to find pip. Pip is required to automatically install pyparsing")
+        endif()
+    endif()
     string(FIND "${PYTHON_PACKAGE_LIST}" pyparsing PYPARSING_FOUND)
     if ("${PYPARSING_FOUND}" STREQUAL "-1")
         message(STATUS "Installing pyparsing")
-        execute_process(COMMAND ${PYTHON_EXECUTABLE} -m pip "install" --user pyparsing)
+        execute_process(COMMAND ${PYTHON_EXECUTABLE} -m pip "install" --user pyparsing RESULT_VARIABLE SUCCESS)
+        if (NOT "${SUCCESS}" STREQUAL "0")
+            execute_process(COMMAND pip "install" --user pyparsing RESULT_VARIABLE SUCCESS)
+            if (NOT "${SUCCESS}" STREQUAL "0")
+                message(WARNING "Failed to automatically install pyparsing. Please install manually")
+            endif()
+        endif()
     else()
         message(STATUS "Python interpreter with pyparsing found")
     endif()
@@ -310,7 +322,12 @@ if(COMPILE_SCHEMA)
     message(STATUS "Compiling schema, this will take a while...")
     execute_process(COMMAND ${PYTHON_EXECUTABLE} bootstrap.py express.bnf 
         WORKING_DIRECTORY ../src/ifcexpressparser 
-        OUTPUT_FILE express_parser.py)
+        OUTPUT_FILE express_parser.py
+        RESULT_VARIABLE SUCCESS)
+
+    if (NOT "${SUCCESS}" STREQUAL "0")
+        MESSAGE(FATAL_ERROR "Failed to bootstrap parser. Make sure pyparsing is installed")
+    endif()
         
     # Generate code
     execute_process(COMMAND ${PYTHON_EXECUTABLE} ../ifcexpressparser/express_parser.py ../../${COMPILE_SCHEMA}
@@ -318,10 +335,12 @@ if(COMPILE_SCHEMA)
         OUTPUT_VARIABLE COMPILED_SCHEMA_NAME)
     
     # Prevent the schema that had just been compiled from being excluded
-    if(${COMPILED_SCHEMA_NAME} STREQUAL "IFC2X3")
+    if("${COMPILED_SCHEMA_NAME}" STREQUAL "IFC2X3")
         list(REMOVE_ITEM IFC_RELEASE_NOT_USED "2x3")
-    elseif(${COMPILED_SCHEMA_NAME} STREQUAL "IFC4")
+        add_definitions(-DUSE_IFC2x3)
+    elseif("${COMPILED_SCHEMA_NAME}" STREQUAL "IFC4")
         list(REMOVE_ITEM IFC_RELEASE_NOT_USED "4")
+        add_definitions(-DUSE_IFC4)
     endif()
 else()
     if(USE_IFC4)

src/ifcexpressparser/codegen.py

@@ -0,0 +1,34 @@
+###############################################################################
+#                                                                             #
+# This file is part of IfcOpenShell.                                          #
+#                                                                             #
+# IfcOpenShell is free software: you can redistribute it and/or modify        #
+# it under the terms of the Lesser GNU General Public License as published by #
+# the Free Software Foundation, either version 3.0 of the License, or         #
+# (at your option) any later version.                                         #
+#                                                                             #
+# IfcOpenShell is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                #
+# Lesser GNU General Public License for more details.                         #
+#                                                                             #
+# You should have received a copy of the Lesser GNU General Public License    #
+# along with this program. If not, see <http://www.gnu.org/licenses/>.        #
+#                                                                             #
+###############################################################################
+
+class Base(object):
+    """
+    A base class for all code generation classes. Currently only working around
+    some python 2/3 incompatibilities in terms of unicode file handling.
+    """
+    def emit(self):
+        import platform
+        if tuple(map(int, platform.python_version_tuple())) < (2, 8):
+            from io import open as unicode_open
+        else:
+            unicode_open = open
+            unicode = lambda x, *args, **kwargs: x
+        f = unicode_open(self.file_name, 'w', encoding='utf-8')
+        f.write(unicode(repr(self), encoding='utf-8', errors='ignore'))
+        f.close()

src/ifcexpressparser/enum_header.py

@@ -18,8 +18,9 @@
 ###############################################################################
 
 import templates
+import codegen
 
-class EnumHeader:
+class EnumHeader(codegen.Base):
     def __init__(self, mapping):
         enumerable_types = sorted(set([name for name, type in mapping.schema.types.items()] + [name for name, type in mapping.schema.entities.items()]))
         
@@ -30,9 +31,9 @@ class EnumHeader:
         }
         
         self.schema_name = mapping.schema.name.capitalize()
+        
+        self.file_name = '%senum.h'%self.schema_name
+        
+        
     def __repr__(self):
         return self.str
-    def emit(self):
-        f = open('%senum.h'%self.schema_name, 'w', encoding='utf-8')
-        f.write(str(self))
-        f.close()

src/ifcexpressparser/header.py

@@ -17,10 +17,11 @@
 #                                                                             #
 ###############################################################################
 
+import codegen
 import templates
 import documentation
 
-class Header:
+class Header(codegen.Base):
     def __init__(self, mapping):
         declarations = []
 
@@ -123,10 +124,9 @@ class Header:
         }
 
         self.schema_name = mapping.schema.name.capitalize()
+        
+        self.file_name = '%s.h'%self.schema_name
+        
+        
     def __repr__(self):
         return self.str
-    def emit(self):
-        f = open('%s.h'%self.schema_name, 'w', encoding='utf-8')
-        f.write(str(self))
-        f.close()
-

src/ifcexpressparser/implementation.py

@@ -17,9 +17,10 @@
 #                                                                             #
 ###############################################################################
 
+import codegen
 import templates
 
-class Implementation:
+class Implementation(codegen.Base):
     def __init__(self, mapping):
         enumeration_functions = []
         entity_implementations = []
@@ -230,10 +231,9 @@ class Implementation:
         }
 
         self.schema_name = mapping.schema.name.capitalize()
+        
+        self.file_name = '%s.cpp'%self.schema_name
+        
+        
     def __repr__(self):
         return self.str
-    def emit(self):
-        f = open('%s.cpp'%self.schema_name, 'w', encoding='utf-8')
-        f.write(str(self))
-        f.close()
-

src/ifcexpressparser/latebound_header.py

@@ -17,9 +17,10 @@
 #                                                                             #
 ###############################################################################
 
+import codegen
 import templates
 
-class LateBoundHeader:
+class LateBoundHeader(codegen.Base):
     def __init__(self, mapping):
         self.str = templates.lb_header % {
             'schema_name_upper' : mapping.schema.name.upper(),
@@ -27,9 +28,9 @@ class LateBoundHeader:
         }
         
         self.schema_name = mapping.schema.name.capitalize()
+        
+        self.file_name = '%s-latebound.h'%self.schema_name
+        
+        
     def __repr__(self):
         return self.str
-    def emit(self):
-        f = open('%s-latebound.h'%self.schema_name, 'w', encoding='utf-8')
-        f.write(str(self))
-        f.close()

src/ifcexpressparser/latebound_implementation.py

@@ -17,9 +17,10 @@
 #                                                                             #
 ###############################################################################
 
+import codegen
 import templates
 
-class LateBoundImplementation:
+class LateBoundImplementation(codegen.Base):
     def __init__(self, mapping):
         schema_name = mapping.schema.name.capitalize()
         
@@ -110,10 +111,9 @@ class LateBoundImplementation:
         }
 
         self.schema_name = mapping.schema.name.capitalize()
+        
+        self.file_name = '%s-latebound.cpp'%self.schema_name
+        
+        
     def __repr__(self):
         return self.str
-    def emit(self):
-        f = open('%s-latebound.cpp'%self.schema_name, 'w', encoding='utf-8')
-        f.write(str(self))
-        f.close()
-

src/ifcexpressparser/mapping.py

@@ -17,6 +17,8 @@
 #                                                                             #
 ###############################################################################
 
+from __future__ import print_function
+
 import sys
 import nodes
 import templates
@@ -33,11 +35,11 @@ class Mapping:
         'binary'  : 'boost::dynamic_bitset<>'
     }
     
-    supported_argument_types = {
+    supported_argument_types = set([
         'INT', 'BOOL', 'DOUBLE', 'STRING', 'BINARY', 'ENUMERATION', 'ENTITY_INSTANCE',
         'AGGREGATE_OF_INT', 'AGGREGATE_OF_DOUBLE', 'AGGREGATE_OF_STRING', 'AGGREGATE_OF_BINARY', 'AGGREGATE_OF_ENTITY_INSTANCE',
         'AGGREGATE_OF_AGGREGATE_OF_INT', 'AGGREGATE_OF_AGGREGATE_OF_DOUBLE', 'AGGREGATE_OF_AGGREGATE_OF_ENTITY_INSTANCE',
-    }
+    ])
 
     def __init__(self, schema):
         self.schema = schema

src/ifcexpressparser/schema.py

@@ -18,8 +18,13 @@
 ###############################################################################
 
 import nodes
+import platform
 import collections
 
+if tuple(map(int, platform.python_version_tuple())) < (2, 7):
+    import ordereddict
+    collections.OrderedDict = ordereddict.OrderedDict
+
 class Schema:
     def is_enumeration(self, v):
         return str(v) in self.enumerations
@@ -34,12 +39,12 @@ class Schema:
     def __init__(self, parsetree):
         self.name = parsetree[1]
 
-        sort = lambda d: collections.OrderedDict(sorted(d.items()))
+        sort = lambda d: collections.OrderedDict(sorted(d))
 
-        self.types = sort({t.name:t for t in parsetree if isinstance(t, nodes.TypeDeclaration)})
-        self.entities = sort({t.name:t for t in parsetree if isinstance(t, nodes.EntityDeclaration)})
+        self.types = sort([(t.name,t) for t in parsetree if isinstance(t, nodes.TypeDeclaration)])
+        self.entities = sort([(t.name,t) for t in parsetree if isinstance(t, nodes.EntityDeclaration)])
 
-        of_type = lambda *types: sort({a: b.type.type for a,b in self.types.items() if any(isinstance(b.type.type, ty) for ty in types)})
+        of_type = lambda *types: sort([(a, b.type.type) for a,b in self.types.items() if any(isinstance(b.type.type, ty) for ty in types)])
 
         self.enumerations = of_type(nodes.EnumerationType)
         self.selects = of_type(nodes.SelectType)

src/ifcgeom/IfcGeomFaces.cpp

@@ -893,7 +893,11 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcPlane* l, TopoDS_Shape& face)
 	gp_Pln pln;
 	convert(l, pln);
 	Handle_Geom_Surface surf = new Geom_Plane(pln);
+#if OCC_VERSION_HEX < 0x60502
+	face = BRepBuilderAPI_MakeFace(surf);
+#else
 	face = BRepBuilderAPI_MakeFace(surf, getValue(GV_PRECISION));
+#endif
 	return true;
 }
 
@@ -942,7 +946,11 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcBSplineSurfaceWithKnots* l, To
 	}
 	Handle_Geom_Surface surf = new Geom_BSplineSurface(Poles, UKnots, VKnots, UMults, VMults, UDegree, VDegree);
 
+#if OCC_VERSION_HEX < 0x60502
+	face = BRepBuilderAPI_MakeFace(surf);
+#else
 	face = BRepBuilderAPI_MakeFace(surf, getValue(GV_PRECISION));
+#endif
 
 	return true;
 }

src/ifcgeom/IfcGeomFunctions.cpp

@@ -63,6 +63,9 @@
 #include <TopoDS.hxx>
 #include <TopoDS_Wire.hxx>
 #include <TopoDS_Face.hxx>
+#include <TopoDS_CompSolid.hxx>
+
+#include <TopExp.hxx>
 #include <TopExp_Explorer.hxx>
 
 #include <BRepPrimAPI_MakePrism.hxx>
@@ -95,7 +98,6 @@
 #include <Poly_Triangulation.hxx>
 #include <Poly_Array1OfTriangle.hxx>
 
-#include <TopExp.hxx>
 #include <TopTools_IndexedMapOfShape.hxx>
 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
 #include <TopTools_ListIteratorOfListOfShape.hxx>
@@ -106,7 +108,11 @@
 #include "../ifcgeom/IfcGeom.h"
 
 #if OCC_VERSION_HEX < 0x60900
+#ifdef _MSC_VER
 #pragma message("warning: You are linking against Open CASCADE version " OCC_VERSION_COMPLETE ". Version 6.9.0 introduces various improvements with relation to boolean operations. You are advised to upgrade.")
+#else
+#warning "You are linking against linking against an older version of Open CASCADE. Version 6.9.0 introduces various improvements with relation to boolean operations. You are advised to upgrade."
+#endif
 #endif
 
 bool IfcGeom::Kernel::create_solid_from_compound(const TopoDS_Shape& compound, TopoDS_Shape& shape) {

src/ifcgeom/IfcGeomShapes.cpp

@@ -65,6 +65,8 @@
 #include <TopoDS.hxx>
 #include <TopoDS_Wire.hxx>
 #include <TopoDS_Face.hxx>
+#include <TopoDS_CompSolid.hxx>
+
 #include <TopExp_Explorer.hxx>
 
 #include <BRepPrimAPI_MakePrism.hxx>
@@ -859,7 +861,11 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcCylindricalSurface* l, TopoDS_
 	gp_Trsf trsf;
 	IfcGeom::Kernel::convert(l->Position(),trsf);
 	
+#if OCC_VERSION_HEX < 0x60502
+	face = BRepBuilderAPI_MakeFace(new Geom_CylindricalSurface(gp::XOY(), l->Radius())).Face().Moved(trsf);
+#else
 	face = BRepBuilderAPI_MakeFace(new Geom_CylindricalSurface(gp::XOY(), l->Radius()), getValue(GV_PRECISION)).Face().Moved(trsf);
+#endif
 	return true;
 }
 

src/ifcparse/IfcGlobalId.cpp

@@ -23,6 +23,8 @@
 #include <boost/uuid/uuid.hpp>
 #include <boost/uuid/uuid_generators.hpp>
 #include <boost/uuid/uuid_io.hpp>
+#include <boost/version.hpp>
+#include <boost/lexical_cast.hpp>
 
 #include "../ifcparse/IfcGlobalId.h"
 #include "../ifcparse/IfcException.h"
@@ -87,7 +89,11 @@ IfcParse::IfcGlobalId::IfcGlobalId() {
 	std::vector<unsigned char> v(uuid_data.size());
 	std::copy(uuid_data.begin(), uuid_data.end(), v.begin());
 	string_data = compress(&v[0]);
+#if BOOST_VERSION < 104400
+	formatted_string = boost::lexical_cast<std::string>(uuid_data);
+#else
 	formatted_string = boost::uuids::to_string(uuid_data);
+#endif
 
 #ifndef NDEBUG
 	std::vector<unsigned char> test_vector;
@@ -106,7 +112,11 @@ IfcParse::IfcGlobalId::IfcGlobalId(const std::string& s)
 	std::vector<unsigned char> v;
 	expand(string_data, v);
 	std::copy(v.begin(), v.end(), uuid_data.begin());
+#if BOOST_VERSION < 104400
+	formatted_string = boost::lexical_cast<std::string>(uuid_data);
+#else
 	formatted_string = boost::uuids::to_string(uuid_data);
+#endif
 
 #ifndef NDEBUG
 	const std::string test_string = compress(&uuid_data.data[0]);