XrdOucTokenizer.hh

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#ifndef __OOUC_TOKENIZER__
#define __OOUC_TOKENIZER__
/******************************************************************************/
/*                                                                            */
/*                    X r d O u c T o k e n i z e r . h h                     */
/*                                                                            */
/* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University  */
/*   Produced by Andrew Hanushevsky for Stanford University under contract    */
/*                DE-AC02-76-SFO0515 with the Deprtment of Energy             */
/*                                                                            */
/* This file is part of the XRootD software suite.                            */
/*                                                                            */
/* XRootD is free software: you can redistribute it and/or modify it under    */
/* the terms of the GNU Lesser General Public License as published by the     */
/* Free Software Foundation, either version 3 of the License, or (at your     */
/* option) any later version.                                                 */
/*                                                                            */
/* XRootD 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 Lesser General Public       */
/* License for more details.                                                  */
/*                                                                            */
/* You should have received a copy of the GNU Lesser General Public License   */
/* along with XRootD in a file called COPYING.LESSER (LGPL license) and file  */
/* COPYING (GPL license).  If not, see <http://www.gnu.org/licenses/>.        */
/*                                                                            */
/* The copyright holder's institutional names and contributor's names may not */
/* be used to endorse or promote products derived from this software without  */
/* specific prior written permission of the institution or contributor.       */
/******************************************************************************/
 
class XrdOucTokenizer
{
public:
 
            XrdOucTokenizer(char *bp) {Attach(bp);}
 
           ~XrdOucTokenizer() {}
 
// Attach a new buffer to the tokenizer.
//
void         Attach(char *bp);
 
// Get the next record from a buffer. Return null upon eof or error.
//
char        *GetLine();
 
// Get the next blank-delimited token in the record returned by Getline(). A
// null pointer is returned if no more tokens remain. Each token is terminated
// a null byte. Note that the record buffer is modified during processing. The
// routine may optionally return a pointer to the remainder of the line with 
// no leading blanks. The lowcase argument, if 1, converts all letters to lower 
// case in the token.
//
char        *GetToken(char **rest=0, int lowcase=0);
 
// RetToken() simply backups the token scanner the last tken returned. Only
// one backup is allowed.
//
void         RetToken();
 
// A 0 indicates that tabs in the stream should be converted to spaces.
// A 1 inducates that tabs should be left alone (the default).
//
void         Tabs(int x=1) {notabs = !x;}
 
/******************************************************************************/
  
private:
        char *buff;
        char *token;
        char *tnext;
        int   notabs;
};
#endif