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/* $Id: ctxt_vw.c,v 1.1 2001/04/12 00:33:53 skaus Exp $
View all entries of the specified type
*/
#include "../config.h"
#include <assert.h>
#include <stdio.h>
#include <environ.h>
#include "../include/context.h"
#include "../include/misc.h"
#include "../strings.h"
typedef struct {
unsigned char tag;
unsigned count;
} view_t;
/* Because new items are appended to the context, the items
are automatically sorted ascending */
#pragma argsused
static int view(void *arg, word segm, word ofs)
{
assert(segm);
if(ctxtProbeItemTag(segm, ofs, ((view_t*)arg)->tag)) {
++((view_t*)arg)->count;
printf("%Fs\n", MK_FP(segm, ofs + 1));
}
return 0; /* don't stop */
}
int ctxtView(const Context_Tag tag, const unsigned empty)
{
int rc;
view_t param;
assert(ctxtFromTag(tag) != CTXT_INVALID);
param.tag = (unsigned char)tag;
param.count = 0;
/* return value == 0 --> OK */
if((rc = env_forAll(ctxtFromTag(tag), view, (void*)¶m)) == 0) {
if(param.count)
displayString(TEXT_MSG_ITEMS_DISPLAYED, param.count);
else displayString(empty);
}
return rc;
}
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