Fossil

                          NULL pointers replaced by SQL NULL.  %Q */
#define etPOINTER    15 /* The %p conversion */
#define etHTMLIZE    16 /* Make text safe for HTML */
#define etHTTPIZE    17 /* Make text safe for HTTP.  "/" encoded as %2f */
#define etURLIZE     18 /* Make text safe for HTTP.  "/" not encoded */
#define etFOSSILIZE  19 /* The fossil header encoding format. */
#define etPATH       20 /* Path type */
#define etWIKISTR    21 /* Timeline comment text rendered from a char*: %w */

#define etSTRINGID   23 /* String with length limit for a UUID prefix: %S */
#define etROOT       24 /* String value of g.zTop: % */


/*
** An "etByte" is an 8-bit unsigned value.
*/

  {  'g',  0, 1, etGENERIC,    30, 0 },
  {  'z',  0, 6, etDYNSTRING,  0,  0 },
  {  'q',  0, 4, etSQLESCAPE,  0,  0 },
  {  'Q',  0, 4, etSQLESCAPE2, 0,  0 },
  {  'b',  0, 2, etBLOB,       0,  0 },
  {  'B',  0, 2, etBLOBSQL,    0,  0 },
  {  'w',  0, 2, etWIKISTR,    0,  0 },

  {  'h',  0, 4, etHTMLIZE,    0,  0 },
  {  'R',  0, 0, etROOT,       0,  0 },
  {  't',  0, 4, etHTTPIZE,    0,  0 },  /* "/" -> "%2F" */
  {  'T',  0, 4, etURLIZE,     0,  0 },  /* "/" unchanged */
  {  'F',  0, 4, etFOSSILIZE,  0,  0 },
  {  'S',  0, 4, etSTRINGID,   0,  0 },
  {  'c',  0, 0, etCHARX,      0,  0 },

** is an alias for strlen().
*/
static int StrNLen32(const char *z, int N){
  int n = 0;
  while( (N-- != 0) && *(z++)!=0 ){ n++; }
  return n;
}

/*
** Return an appropriate set of flags for wiki_convert() for displaying
** comments on a timeline.  These flag settings are determined by
** configuration parameters.
*/
static int wiki_convert_flags(void){
  static int wikiFlags = 0;
  if( wikiFlags==0 ){
    if( db_get_boolean("timeline-block-markup", 0) ){
      wikiFlags = WIKI_INLINE | WIKI_NOBADLINKS;
    }else{
      wikiFlags = WIKI_INLINE | WIKI_NOBLOCK | WIKI_NOBADLINKS;
    }
    if( db_get_boolean("timeline-plaintext", 0) ){
      wikiFlags |= WIKI_LINKSONLY;
    }
  }
  return wikiFlags;
}



/*
** The root program.  All variations call this core.
**
** INPUTS:
**   func   This is a pointer to a function taking three arguments

        break;
      }
      case etWIKISTR: {
        int limit = flag_alternateform ? va_arg(ap,int) : -1;
        char *zWiki = va_arg(ap, char*);
        Blob wiki;
        blob_init(&wiki, zWiki, limit);
        wiki_convert(&wiki, pBlob, wiki_convert_flags());
        blob_reset(&wiki);
        length = width = 0;
        break;
      }






      case etERROR:
        buf[0] = '%';
        buf[1] = c;
        errorflag = 0;
        idx = 1+(c!=0);
        blob_append(pBlob,"%",idx);
        count += idx;