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108 lines
3 KiB
C
108 lines
3 KiB
C
/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* Functions to handle typelib */
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#include "mysys_priv.h"
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#include <m_string.h>
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#include <m_ctype.h>
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/***************************************************************************
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** Search after a fieldtype. Endspace in x is not compared.
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** If part, uniq field is found and full_name == 0 then x is expanded
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** to full field.
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** full_name has the following bit values:
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** If & 1 accept only whole names
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** If & 2 don't expand if half field
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** If & 4 allow #number# as type
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****************************************************************************/
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int find_type(my_string x, TYPELIB *typelib, uint full_name)
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{
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int find,pos,findpos;
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reg1 my_string i;
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reg2 const char *j;
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DBUG_ENTER("find_type");
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DBUG_PRINT("enter",("x: '%s' lib: %lx",x,typelib));
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if (!typelib->count)
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{
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DBUG_PRINT("exit",("no count"));
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DBUG_RETURN(0);
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}
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LINT_INIT(findpos);
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find=0;
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for (pos=0 ; (j=typelib->type_names[pos]) ; pos++)
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{
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for (i=x ;
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*i && my_toupper(system_charset_info,*i) ==
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my_toupper(system_charset_info,*j) ; i++, j++) ;
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if (! *j)
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{
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while (*i == ' ')
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i++; /* skipp_end_space */
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if (! *i)
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DBUG_RETURN(pos+1);
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}
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if (! *i && (!*j || !(full_name & 1)))
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{
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find++;
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findpos=pos;
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}
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}
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if (find == 0 && (full_name & 4) && x[0] == '#' && strend(x)[-1] == '#' &&
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(findpos=atoi(x+1)-1) >= 0 && (uint) findpos < typelib->count)
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find=1;
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else if (find == 0 || ! x[0])
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{
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DBUG_PRINT("exit",("Couldn't find type"));
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DBUG_RETURN(0);
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}
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else if (find != 1 || (full_name & 1))
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{
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DBUG_PRINT("exit",("Too many possybilities"));
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DBUG_RETURN(-1);
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}
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if (!(full_name & 2))
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(void) strmov(x,typelib->type_names[findpos]);
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DBUG_RETURN(findpos+1);
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} /* find_type */
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/* Get name of type nr 'nr' */
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/* Warning first type is 1, 0 = empty field */
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void make_type(register my_string to, register uint nr,
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register TYPELIB *typelib)
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{
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DBUG_ENTER("make_type");
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if (!nr)
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to[0]=0;
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else
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(void) strmov(to,get_type(typelib,nr-1));
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DBUG_VOID_RETURN;
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} /* make_type */
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/* Get type */
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/* Warning first type is 0 */
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const char *get_type(TYPELIB *typelib, uint nr)
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{
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if (nr < (uint) typelib->count && typelib->type_names)
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return(typelib->type_names[nr]);
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return "?";
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}
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