File: itoken.h

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/* Copyright (C) 2001-2006 Artifex Software, Inc.
   All Rights Reserved.
  
   This software is provided AS-IS with no warranty, either express or
   implied.

   This software is distributed under license and may not be copied, modified
   or distributed except as expressly authorized under the terms of that
   license.  Refer to licensing information at http://www.artifex.com/
   or contact Artifex Software, Inc.,  7 Mt. Lassen Drive - Suite A-134,
   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
*/

/* $Id: itoken.h 9043 2008-08-28 22:48:19Z giles $ */
/* Interface to exported procedures in ztoken.c */

#ifndef itoken_INCLUDED
#  define itoken_INCLUDED

/*
 * Continue after handling a procedure stream refill or other callout
 * while reading tokens in the interpreter.
 */
int ztokenexec_continue(i_ctx_t *i_ctx_p);

/*
 * Handle a scan_Comment or scan_DSC_Comment return from scan_token.
 */
#ifndef scanner_state_DEFINED
#  define scanner_state_DEFINED
typedef struct scanner_state_s scanner_state;
#endif
int ztoken_handle_comment(i_ctx_t *i_ctx_p,
			  scanner_state *sstate, const ref *ptoken,
			  int scan_code, bool save, bool push_file,
			  op_proc_t cont);

/*
 * Update the cached scanner_options in the context state after doing a
 * setuserparams.  (We might move this procedure somewhere else eventually.)
 */
int ztoken_scanner_options(const ref *upref, int old_options);
/*
 * Get the value for a scanner option.
 * return -1 if no such option, 1/0 for on/off and option's name in *pname as a C string
 */
int ztoken_get_scanner_option(const ref *psref, int options, const char **pname);

#endif /* itoken_INCLUDED */