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/* Copyright (C) 1997, 2000 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: gsfcmap.h,v 1.9 2003/02/06 09:40:00 igor Exp $ */
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/* Public interface to CMaps */
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#ifndef gsfcmap_INCLUDED
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# define gsfcmap_INCLUDED
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#include "gsccode.h"
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/* Define the abstract type for a CMap. */
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#ifndef gs_cmap_DEFINED
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# define gs_cmap_DEFINED
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typedef struct gs_cmap_s gs_cmap_t;
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#endif
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/* ---------------- Procedural interface ---------------- */
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/*
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* Create an Identity CMap.
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*/
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int gs_cmap_create_identity(gs_cmap_t **ppcmap, int num_bytes, int wmode,
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gs_memory_t *mem);
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/*
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* Create an Identity CMap where each entry varies only in the lowest byte,
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* and that maps to characters rather than to CIDs.
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* (This is suitable for use as a ToUnicode CMap, for example.)
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*/
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int gs_cmap_create_char_identity(gs_cmap_t **ppcmap, int num_bytes,
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int wmode, gs_memory_t *mem);
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/*
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* Decode a character from a string using a CMap, updating the index.
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* Return 0 for a CID or name, N > 0 for a character code where N is the
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* number of bytes in the code, or an error. Store the decoded bytes in
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* *pchr. For undefined characters, set *pglyph = gs_no_glyph and return 0.
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*/
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int gs_cmap_decode_next(const gs_cmap_t *pcmap, const gs_const_string *str,
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uint *pindex, uint *pfidx,
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gs_char *pchr, gs_glyph *pglyph);
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/*
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* Allocate and initialize a ToUnicode CMap.
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*/
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int gs_cmap_ToUnicode_alloc(gs_memory_t *mem, int id, int num_codes, int key_size,
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gs_cmap_t **ppcmap);
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/*
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* Write a code pair to ToUnicode CMap.
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*/
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void gs_cmap_ToUnicode_add_pair(gs_cmap_t *pcmap, int code0, int code2);
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#endif /* gsfcmap_INCLUDED */
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