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// file : xsde/cxx/parser/validating/language.cxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#include <xsde/cxx/config.hxx>
#include <xsde/cxx/parser/validating/language.hxx>
#include <xsde/cxx/parser/validating/string-common.hxx>
namespace xsde
{
namespace cxx
{
namespace parser
{
namespace validating
{
void language_pimpl::
_pre ()
{
#ifdef XSDE_EXCEPTIONS
str_.assign ("", 0);
#else
if (str_.assign ("", 0))
_sys_error (sys_error::no_memory);
#endif
}
void language_pimpl::
_characters (const ro_string& s)
{
if (str_.size () == 0)
{
ro_string tmp (s.data (), s.size ());
if (trim_left (tmp) != 0)
{
#ifdef XSDE_EXCEPTIONS
str_.append (tmp.data (), tmp.size ());
#else
if (str_.append (tmp.data (), tmp.size ()))
_sys_error (sys_error::no_memory);
#endif
}
}
else
{
#ifdef XSDE_EXCEPTIONS
str_.append (s.data (), s.size ());
#else
if (str_.append (s.data (), s.size ()))
_sys_error (sys_error::no_memory);
#endif
}
}
void language_pimpl::
_post ()
{
if (!string_common::validate_facets (str_, _facets (), _context ()))
return;
typedef string::size_type size_type;
size_type size = str_.size ();
// language := ALPHA{1,8} *(-(ALPHA | DIGIT){1,8})
//
bool ok = true;
size_type i = 0;
for (size_type tag = 0; ; ++tag)
{
size_type n = 0;
for (; i < size && n < 8; ++n, ++i)
{
char c = str_[i];
if (!((c >= 'a' && c <= 'z') ||
(c >= 'A' && c <= 'Z') ||
(tag != 0 && c >= '0' && c <= '9')))
break;
}
if (n == 0)
{
ok = false;
break;
}
if (i == size)
break;
if (str_[i++] != '-')
{
ok = false;
break;
}
}
if (!ok)
_schema_error (schema_error::invalid_language_value);
}
char* language_pimpl::
post_language ()
{
return str_.detach ();
}
}
}
}
}
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