Initial creation of sourceware repository

sim/ppc/filter.c

@@ -0,0 +1,150 @@
+/*  This file is part of the program psim.
+
+    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+
+    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; either version 2 of the License, or
+    (at your option) any later version.
+
+    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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ 
+    */
+
+
+#include <stdio.h>
+
+#include "config.h"
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+
+#include "misc.h"
+#include "filter.h"
+
+struct _filter {
+  char *flag;
+  filter *next;
+};
+
+
+filter *
+new_filter(const char *filt,
+	   filter *filters)
+{
+  while (strlen(filt) > 0) {
+    filter *new_filter;
+    /* break up the filt list */
+    char *end = strchr(filt, ',');
+    char *next;
+    int len;
+    if (end == NULL) {
+      end = strchr(filt, '\0');
+      next = end;
+    }
+    else {
+      next = end + 1;
+    }
+    len = end - filt;
+    /* add to filter list */
+    new_filter = ZALLOC(filter);
+    new_filter->flag = (char*)zalloc(len + 1);
+    strncpy(new_filter->flag, filt, len);
+    new_filter->next = filters;
+    filters = new_filter;
+    filt = next;
+  }
+  return filters;
+}
+
+
+int
+is_filtered_out(const char *flags,
+		filter *filters)
+{
+  while (strlen(flags) > 0) {
+    int present;
+    filter *filt = filters;
+    /* break the string up */
+    char *end = strchr(flags, ',');
+    char *next;
+    int len;
+    if (end == NULL) {
+      end = strchr(flags, '\0');
+      next = end;
+    }
+    else {
+      next = end + 1;
+    }
+    len = end - flags;
+    /* check that it is present */
+    present = 0;
+    filt = filters;
+    while (filt != NULL) {
+      if (strncmp(flags, filt->flag, len) == 0
+	  && strlen(filt->flag) == len) {
+	present = 1;
+	break;
+      }
+      filt = filt->next;
+    }
+    if (!present)
+      return 1;
+    flags = next;
+  }
+  return 0;
+}
+
+
+int
+it_is(const char *flag,
+      const char *flags)
+{
+  int flag_len = strlen(flag);
+  while (*flags != '\0') {
+    if (!strncmp(flags, flag, flag_len)
+	&& (flags[flag_len] == ',' || flags[flag_len] == '\0'))
+      return 1;
+    while (*flags != ',') {
+      if (*flags == '\0')
+	return 0;
+      flags++;
+    }
+    flags++;
+  }
+  return 0;
+}
+
+
+#ifdef MAIN
+int
+main(int argc, char **argv)
+{
+  filter *filters = NULL;
+  int i;
+  if (argc < 2) {
+    printf("Usage: filter <flags> <filter> ...\n");
+    exit (1);
+  }
+  /* load the filter up */
+  for (i = 2; i < argc; i++) 
+    filters = new_filter(argv[i], filters);
+  if (is_filtered_out(argv[1], filters))
+    printf("fail\n");
+  else
+    printf("pass\n");
+  return 0;
+}
+#endif