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// Copyright 1998,1999 Zanshin Inc. <http://www.zanshin.com/>
// The contents of this file are subject to the Zanshin Public License Version
// 1.0 (the "License"); you may not use this file except in compliance with the
// License. You should have received a copy of the License with Latte; see
// the file COPYING. You may also obtain a copy of the License at
// <http://www.zanshin.com/ZPL.html>.
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
// for the specific language governing rights and limitations under the
// License.
//
// The Original Code is Latte.
//
// The Initial Developer of the Original Code is Zanshin, Inc.
#include <latte.h>
#include <latte-fstream.h>
#include <unistd.h>
using namespace std;
class LoadVisitor : public Latte_Visitor {
public:
void visit_str(Latte_Str &) {}
};
Refcounter<Latte_Obj>
latte_load_file(const shstring &filename,
Latte_Activation &activation)
{
LoadVisitor visitor;
return latte_load_file(filename, activation, visitor);
}
Refcounter<Latte_Obj>
latte_load_file(const shstring &filename,
Latte_Activation &activation,
Latte_Visitor &visitor)
{
ifstream in(filename.str().c_str());
if (in.fail())
throw Latte_FileError(filename.str());
Latte_Reader reader(in, filename, activation);
reader.process(visitor);
in.close();
return latte_true();
}
static Latte_Path path;
Latte_Path &
latte_path()
{
return path;
}
void
latte_default_path()
{
path.erase(path.begin(), path.end());
const char *envpath = getenv("LATTE_PATH");
if (envpath) {
do {
const char *colon = strchr(envpath, ':');
if (colon) {
path.push_back(shstring(envpath, colon - envpath));
envpath = colon + 1;
} else {
path.push_back(envpath);
envpath = 0;
}
} while (envpath);
} else {
#if !defined(WIN32) && !defined(macintosh)
path.push_back(latte_pkgdatadir);
path.push_back(".");
#endif // !WIN32 && !macintosh
}
}
#undef sep
#ifdef macintosh
# define sep ":"
# define ext ".latte"
#endif // macintosh
#ifdef WIN32
# define sep "\\"
# define ext ".lat"
#endif // WIN32
#ifndef sep
# define sep "/"
# define ext ".latte"
#endif // sep
Refcounter<Latte_Obj>
latte_load_library(const shstring &libname, Latte_Activation &activation)
{
if (path.empty()) {
latte_string filename = libname.str();
if (!access(filename.c_str(), F_OK))
return latte_load_file(filename, activation);
filename += ext;
if (!access(filename.c_str(), F_OK))
return latte_load_file(filename, activation);
} else {
for (Latte_Path::const_iterator i = path.begin(); i != path.end(); ++i) {
latte_string filename = (*i).str();
filename += sep;
filename += libname.str();
if (!access(filename.c_str(), F_OK))
return latte_load_file(filename, activation);
filename += ext;
if (!access(filename.c_str(), F_OK))
return latte_load_file(filename, activation);
}
latte_string filename = libname.str();
if (!access(filename.c_str(), F_OK))
return latte_load_file(filename, activation);
filename += ext;
if (!access(filename.c_str(), F_OK))
return latte_load_file(filename, activation);
}
throw Latte_FileError(libname.str());
}
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