ifcopenshell.file.from_string() (#246)

src/ifcparse/IfcParse.cpp

@@ -108,6 +108,19 @@ void init_locale() {
 
 #endif
 
+IfcSpfStream::IfcSpfStream()
+	: stream(0)
+	, buffer(0)
+	, valid(false)
+	, eof(false)
+{
+    ptr   = 0;
+    len   = 0;
+    valid = false;
+    eof   = false;
+    size  = 0;
+}
+
 // 
 // Opens the file and gets the filesize
 //
@@ -208,6 +221,18 @@ IfcSpfStream::IfcSpfStream(void* data, int l)
 	len = l;
 }
 
+IfcSpfStream::IfcSpfStream(const std::string& data, unsigned int x)
+	: stream(0)
+	, buffer(0)
+{
+	eof = false;
+	size = (unsigned int) data.length();
+	buffer = data.c_str();
+	valid = true;
+	ptr = 0;
+	len = (unsigned int) data.length();
+}
+
 IfcSpfStream::~IfcSpfStream()
 {
 	Close();
@@ -1227,16 +1252,17 @@ void IfcEntityInstanceData::setArgument(unsigned int i, Argument* a, IfcUtil::Ar
 // Parses the IFC file in fn
 // Creates the maps
 //
+
 #ifdef USE_MMAP
 bool IfcFile::Init(const std::string& fn, bool mmap) {
 	return IfcFile::Init(new IfcSpfStream(fn, mmap));
 }
 #else
 bool IfcFile::Init(const std::string& fn) {
+    //return IfcFile::Init(new IfcSpfStream(fn, (unsigned int) 0));
 	return IfcFile::Init(new IfcSpfStream(fn));
 }
 #endif
-
 bool IfcFile::Init(std::istream& f, int len) {
 	return IfcFile::Init(new IfcSpfStream(f,len));
 }
@@ -1244,6 +1270,10 @@ bool IfcFile::Init(std::istream& f, int len) {
 bool IfcFile::Init(void* data, int len) {
 	return IfcFile::Init(new IfcSpfStream(data,len));
 }
+bool IfcFile::Init(const std::string& data, unsigned int unused) {
+    return IfcFile::Init(new IfcSpfStream(data, (unsigned int) 0));
+}
+
 
 bool IfcFile::Init(IfcParse::IfcSpfStream* s) {
 	// Initialize a "C" locale for locale-independent