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#ifndef lint
static char *RCSid = "$Id: options.c,v 1.14 2004/02/22 09:25:29 florian Exp $";
#endif
/*
* The Regina Rexx Interpreter
* Copyright (C) 1992-1994 Anders Christensen <anders@pvv.unit.no>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "rexx.h"
#include <assert.h>
#include <string.h>
#define OPTION(opt) { #opt, EXT_##opt, NULL }
#define METAOP(name,value) { #name, -1, value }
static const struct __regina_option all_options[] = { /* Must be alphabetically sorted! */
OPTION( AREXX_BIFS ),
OPTION( AREXX_SEMANTICS ),
OPTION( BROKEN_ADDRESS_COMMAND ),
METAOP( BUFFERS, "BUFTYPE_BIF DESBUF_BIF DROPBUF_BIF MAKEBUF_BIF" ),
OPTION( BUFTYPE_BIF ),
OPTION( CACHEEXT ),
OPTION( CALLS_AS_FUNCS ),
OPTION( DESBUF_BIF ),
OPTION( DROPBUF_BIF ),
OPTION( EXT_COMMANDS_AS_FUNCS ),
OPTION( FAST_LINES_BIF_DEFAULT ),
OPTION( FLUSHSTACK ),
OPTION( INTERNAL_QUEUES ),
OPTION( LINEOUTTRUNC ),
OPTION( MAKEBUF_BIF ),
OPTION( PRUNE_TRACE ),
OPTION( QUEUES_301 ),
OPTION( REGINA_BIFS ),
OPTION( STDOUT_FOR_STDERR ),
OPTION( STRICT_ANSI ),
OPTION( STRICT_WHITE_SPACE_COMPARISONS ),
OPTION( TRACE_HTML ),
{ NULL, 0 }
} ;
void do_options( const tsd_t *TSD, proclevel pl, streng *options, int toggle )
{
char *cptr,*eptr,*start;
int length,inverse=0,tmp;
const struct __regina_option *lower,*upper,*middle=NULL;
cptr = options->value;
eptr = cptr + options->len;
while ( cptr < eptr )
{
for ( ; cptr < eptr && rx_isspace( *cptr ); cptr++ )
;
for ( start = cptr; cptr < eptr && !rx_isspace( *cptr ); cptr++ )
*cptr = (char) rx_toupper( *cptr );
if ( cptr > start+2 )
{
if ( ( inverse = ( *start == 'N' && *( start + 1) == 'O') ) != 0 )
start += 2;
}
length = cptr - start;
lower = all_options;
upper = lower + sizeof( all_options ) / sizeof( all_options[0] ) - 2;
while ( upper >= lower )
{
middle = lower + ( upper - lower ) / 2;
tmp = strncmp( middle->name, start, length );
if ( tmp == 0 && middle->name[length] == '\0' )
break;
if ( tmp > 0 )
upper = middle - 1;
else
lower = middle + 1;
}
/* If option is unknown, don't care ... */
if ( upper >= lower )
{
assert ( middle->name );
if ( middle->offset == -1 )
{
do_options( TSD, pl, Str_creTSD( middle->contains ),
toggle ^ inverse );
}
else
{
if (inverse ^ toggle)
set_options_flag( pl, middle->offset, 0 );
else
set_options_flag( pl, middle->offset, 1 );
}
}
}
Free_stringTSD( options );
}
int get_options_flag( cproclevel pl, int offset )
{
return pl->options & ( 1ul << offset );
}
void set_options_flag( proclevel pl, int offset, int status )
{
if ( status )
pl->options |= ( 1ul << offset );
else
pl->options &= ~( 1ul << offset );
}
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