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// file : xsde/cxx/parser/substitution-map.cxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#include <xsde/cxx/config.hxx>
#include <string.h> // strlen, strcmp, strncmp
#ifndef XSDE_EXCEPTIONS
# include <assert.h> // assert
# include <stdlib.h> // exit
#endif
#include <xsde/cxx/parser/substitution-map.hxx>
#include <xsde/cxx/parser/substitution-map-load.hxx>
namespace xsde
{
namespace cxx
{
namespace parser
{
substitution_map* substitution_map_init::map = 0;
size_t substitution_map_init::count = 0;
bool substitution_map::
check_ (const ro_string& ns,
const ro_string& name,
const char* root,
const char** type) const
{
bool r = false;
if (const value* v = find_ (ns, name))
{
if (strcmp (root, v->root_) == 0)
r = true;
else
r = check_ (v->root_, root);
if (r && type != 0 && *type == 0)
*type = v->type_;
}
return r;
}
bool substitution_map::
check_ (const ro_string& ns,
const ro_string& name,
const char* root_ns,
const char* root_name,
const char** type) const
{
bool r = false;
if (const value* v = find_ (ns, name))
{
if (root_ns == 0)
r = strcmp (v->root_, root_name) == 0;
else
{
size_t n = strlen (root_name);
r = strncmp (v->root_, root_name, n) == 0 && v->root_[n] == ' ' &&
strcmp (v->root_ + n + 1, root_ns) == 0;
}
if (!r)
r = check_ (v->root_, root_ns, root_name);
if (r && type != 0 && *type == 0)
*type = v->type_;
}
return r;
}
bool substitution_map::
check_ (const char* member, const char* root) const
{
const value* v = static_cast<const value*> (find (member));
if (v == 0)
return false;
return strcmp (root, v->root_) == 0 ? true : check_ (v->root_, root);
}
bool substitution_map::
check_ (const char* member,
const char* root_ns,
const char* root_name) const
{
const value* v = static_cast<const value*> (find (member));
if (v == 0)
return false;
bool r;
if (root_ns == 0)
r = strcmp (v->root_, root_name) == 0;
else
{
size_t n = strlen (root_name);
r = strncmp (v->root_, root_name, n) == 0 && v->root_[n] == ' ' &&
strcmp (v->root_ + n + 1, root_ns) == 0;
}
return r ? true : check_ (v->root_, root_ns, root_name);
}
const substitution_map::value* substitution_map::
find_ (const ro_string& ns, const ro_string& name) const
{
bool q = !ns.empty ();
size_t h = hash (name.data (), name.size ());
if (q)
{
h = hash (h, " ", 1);
h = hash (h, ns.data (), ns.size ());
}
const bucket* p = find (h);
if (p == 0)
return 0;
// Search for the entry in the bucket.
//
const size_t el_size = sizeof (element) + sizeof (value);
const char* b = reinterpret_cast<const char*> (p) + sizeof (bucket);
const char* e = b + p->size_ * el_size;
for (; b < e; b += el_size)
{
const element* e = reinterpret_cast<const element*> (b);
if (e->hash_ == h)
{
if (!q)
{
if (strlen (e->key_) == name.size () &&
strncmp (e->key_, name.data (), name.size ()) == 0)
break;
}
else
{
size_t n = name.size ();
if (strncmp (e->key_, name.data (), n) == 0 &&
e->key_[n] == ' ' &&
strlen (e->key_ + n + 1) == ns.size () &&
strncmp (e->key_ + n + 1, ns.data (), ns.size ()) == 0)
break;
}
}
}
if (b == e)
return 0;
return reinterpret_cast<const value*> (b + sizeof (element));
}
// substitution_map_init
//
substitution_map_init::
substitution_map_init ()
{
if (count == 0)
{
map = new substitution_map (XSDE_PARSER_SMAP_BUCKETS);
#ifndef XSDE_EXCEPTIONS
if (map == 0 || map->_error () != substitution_map::error_none)
{
// This is static initialization so there is nothing we can do.
// The best thing is to fail fast. abort() would have probably
// been the better choice here but it is not available on some
// platforms (notably, WinCE).
//
assert (false);
exit (1);
}
#endif
}
++count;
}
substitution_map_init::
~substitution_map_init ()
{
if (--count == 0)
delete map;
}
// substitution_map_entry
//
substitution_map_entry::
substitution_map_entry (const char* member,
const char* root,
const char* type)
{
substitution_map& m = substitution_map_instance ();
m.insert (member, root, type);
#ifndef XSDE_EXCEPTIONS
if (m._error () != substitution_map::error_none)
{
// This is static initialization so there is nothing we can do.
// The best thing is to fail fast. abort() would have probably
// been the better choice here but it is not available on some
// platforms (notably, WinCE).
//
assert (false);
exit (1);
}
#endif
}
//
//
size_t
parser_smap_elements ()
{
return substitution_map_instance ().size ();
}
}
}
}
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