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/* Copyright (C) 2000 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/* Functions to handle typelib */
#include <config.h>
#include <stdio.h>
#include <drizzled/internal/m_string.h>
#include <drizzled/charset.h>
#include <drizzled/memory/root.h>
#include <drizzled/typelib.h>
namespace drizzled {
static const char field_separator=',';
int TYPELIB::find_type_or_exit(const char *x, const char *option) const
{
int res= find_type(x, e_dont_complete);
if (res > 0)
return res;
if (!*x)
fprintf(stderr, "No option given to %s\n", option);
else
fprintf(stderr, "Unknown option to %s: %s\n", option, x);
const char **ptr= type_names;
fprintf(stderr, "Alternatives are: '%s'", *ptr);
while (*++ptr)
fprintf(stderr, ",'%s'", *ptr);
fprintf(stderr, "\n");
exit(1);
}
/*
Search after a string in a list of strings. Endspace in x is not compared.
SYNOPSIS
find_type()
x String to find
lib TYPELIB (struct of pointer to values + count)
full_name bitmap of what to do
If & 1 accept only whole names - e_match_full
If & 2 don't expand if half field - e_dont_complete
If & 4 allow #number# as type - e_allow_int
If & 8 use ',' as string terminator - e_use_comma
NOTES
If part, uniq field is found and full_name == 0 then x is expanded
to full field.
RETURN
-1 Too many matching values
0 No matching value
>0 Offset+1 in typelib for matched string
*/
int TYPELIB::find_type(const char *x, e_find_options full_name) const
{
assert(full_name & e_dont_complete);
if (!count)
return 0;
int find= 0;
int findpos= 0;
const char *j;
for (int pos= 0; (j= type_names[pos]); pos++)
{
const char *i= x;
for (; *i && *i != field_separator &&
my_charset_utf8_general_ci.toupper(*i) == my_charset_utf8_general_ci.toupper(*j); i++, j++)
{
}
if (not *j)
{
while (*i == ' ')
i++; /* skip_end_space */
if (not *i)
return pos + 1;
}
if (not *i && *i != field_separator && (not *j || not (full_name & e_match_full)))
{
find++;
findpos= pos;
}
}
if (find == 0 || not x[0])
return 0;
if (find != 1 || (full_name & e_match_full))
return -1;
return findpos + 1;
} /* find_type */
/*
Create a copy of a specified TYPELIB structure.
SYNOPSIS
copy_typelib()
root pointer to a memory::Root object for allocations
from pointer to a source TYPELIB structure
RETURN
pointer to the new TYPELIB structure on successful copy, or
NULL otherwise
*/
TYPELIB *TYPELIB::copy_typelib(memory::Root& root) const
{
TYPELIB* to= new (root) TYPELIB;
to->type_names= (const char**)root.alloc((sizeof(char *) + sizeof(int)) * (count + 1));
to->type_lengths= (unsigned int*)(to->type_names + count + 1);
to->count= count;
to->name= name ? root.strdup(name) : NULL;
for (uint32_t i= 0; i < count; i++)
{
to->type_names[i]= root.strdup(type_names[i], type_lengths[i]);
to->type_lengths[i]= type_lengths[i];
}
to->type_names[to->count]= NULL;
to->type_lengths[to->count]= 0;
return to;
}
} /* namespace drizzled */
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