Swear Filter v2.0
-----------------

This swear filter replaces the previous version, and has the following
changes in functionality:

1) Only rude words are replaced, even if they are mid-word.

For example, if the word "dragon" was placed in files/rude.msg, then
only the "dragon" part of "dragoness" would be replaced.

2) The replacement string is configured in soft/config.msg, and is used
   instead of the random symbols used by v1.0 of the swear filter.

To install:

At the end of src/include/proto.h, add:

extern char **rudewords;

In src/parse.c, underneath "int backup_hour;" add:

char **rudewords = NULL;

Also in src/parse.c, near the end of the file, replace the filter_rude_words
and swear_version functions with the following:

char *filter_rude_words(char *str)
{
  char *x, *rude, *t;
  int c;

  t=get_config_msg("swear_word");
  if(!rudewords) {
    /* Create the rude words list */
    x=rude_msg.where;
    c=0;
    while(*x) 
    {
      while((*x) && isspace(*x)) x++;
      if(!*x) break;
      rude=strchr(x, '\n');
      if(!rude) break;
      c++;
      x=(rude+1);
    }
    rudewords=(char **)malloc(sizeof(char *)*(c+1));
    x=rude_msg.where;
    c=0;
    while(*x) 
    {
      while((*x) && isspace(*x)) x++;
      if(!*x) break;
      rudewords[c]=x;
      rude=strchr(x, '\n');
      if(!rude) break;
      *rude=0;
      rude++;
      c++;
      x=rude;
    }
    rudewords[c]=0;
  }
  while (1)
  {
    for(c=0; rudewords[c]; c++) {
      if((rude=strcasestr(str, rudewords[c]))!=NULL) break;
    };
    if(!rudewords[c]) return str;
    str = replace(str, rudewords[c], t);
  }
  return str;
}

void swear_version(void)
{
  sprintf(stack, " -=*> Swear filtering v2.0 (by Silver and ekto) enabled.\n");
  stack = strchr(stack, 0);
}

Then, in glue.c, locate the init_messages function. Within that function, 
you should find the following lines:

      SUWALL(" -=*> Reloaded '%s' ...\n", MessageFileArray[i].path);
      if (!strcasecmp(MessageFileArray[i].path, "soft/config.msg"))
        update_configs();

Directly below the update_configs() line, add:

      if(!strcasecmp(MessageFileArray[i].path, "files/rude.msg")) 
      {
        free(rudewords);
        rudewords=NULL;
      }

In src/xstring.c, line 151, replace:

 if (!(ptr = strstr(str, find)))
    return str;

With:

 if (!(ptr = strcasestr(str, find)))
    return str;

And starting at line 181, replace:

 if (strstr(str, find))
  {
    /* seed */
    strncpy(returnstr, single_replace(str, find, rep), 51100);

    /* recursion */
    while (strstr(returnstr, find))
      strncpy(returnstr, single_replace(returnstr, find, rep), 51100);

With:

 if (strcasestr(str, find))
  {
    /* seed */
    strncpy(returnstr, single_replace(str, find, rep), 51100);

    /* recursion */
    while (strcasestr(returnstr, find))
      strncpy(returnstr, single_replace(returnstr, find, rep), 51100);

And finally, in soft/config.msg, add a line similar to:

swear_word:  <blink>

Change the "<blink>" to whatever you want rude words to be replaced with.

Then recompile and reboot.

Credits

  v1.0 by Silver and phypor
  v2.0 by Silver and ekto