Function quickscan

modules/dasSQLITE/sqlite/shell.c:26316–26396

** Scan line for classification to guide shell's handling. ** The scan is resumable for subsequent lines when prior ** return values are passed as the 2nd argument. */

** return values are passed as the 2nd argument.
*/
static QuickScanState quickscan(char *zLine, QuickScanState qss,
                                SCAN_TRACKER_REFTYPE pst){
  char cin;
  char cWait = (char)qss; /* intentional narrowing loss */
  if( cWait==0 ){
  PlainScan:
    assert( cWait==0 );
    while( (cin = *zLine++)!=0 ){
      if( IsSpace(cin) )
        continue;
      switch (cin){
      case '-':
        if( *zLine!='-' )
          break;
        while((cin = *++zLine)!=0 )
          if( cin=='\n')
            goto PlainScan;
        return qss;
      case ';':
        qss |= QSS_EndingSemi;
        continue;
      case '/':
        if( *zLine=='*' ){
          ++zLine;
          cWait = '*';
          CONTINUE_PROMPT_AWAITS(pst, "/*");
          qss = QSS_SETV(qss, cWait);
          goto TermScan;
        }
        break;
      case '[':
        cin = ']';
        deliberate_fall_through;
      case '`': case '\'': case '"':
        cWait = cin;
        qss = QSS_HasDark | cWait;
        CONTINUE_PROMPT_AWAITC(pst, cin);
        goto TermScan;
      case '(':
        CONTINUE_PAREN_INCR(pst, 1);
        break;
      case ')':
        CONTINUE_PAREN_INCR(pst, -1);
        break;
      default:
        break;
      }
      qss = (qss & ~QSS_EndingSemi) | QSS_HasDark;
    }
  }else{
  TermScan:
    while( (cin = *zLine++)!=0 ){
      if( cin==cWait ){
        switch( cWait ){
        case '*':
          if( *zLine != '/' )
            continue;
          ++zLine;