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/* Copyright (C) 2002 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: gscencs.h,v 1.5 2003/10/23 09:49:31 igor Exp $ */
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/* Compact C representation of built-in encodings */
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#ifndef gscencs_INCLUDED
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# define gscencs_INCLUDED
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#include "stdpre.h"
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#include "gstypes.h"
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#include "gsccode.h"
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/*
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* This file defines an interface to a compact C representation of the
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* built-in encodings. This representation is currently used only by
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* pdfwrite, but the PostScript interpreter could in principle use it too.
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*
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* This representation uses its own private numbering system for glyphs.
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* gs_c_known_encode returns one of these private glyph numbers;
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* gs_c_glyph_name converts a private glyph number to a string.
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* For more information about glyph numbering, see gsccode.h.
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*
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* The data file for this representation, gscedata.c, is generated by a
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* PostScript program, encs2c.ps. If the representation changes, this file
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* (src/gscencs.h), gscencs.c, and lib/encs2c.ps must be kept consistent.
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*/
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/*
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* Define the minimum gs_glyph value for glyphs in these encodings.
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* gs_glyph values from this value through gs_min_cid_glyph - 1 are reserved.
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*/
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extern const gs_glyph gs_c_min_std_encoding_glyph;
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/*
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* Encode a character in a known encoding. The only use for glyph numbers
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* returned by this procedure is to pass them to gs_c_glyph_name.
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*/
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gs_glyph gs_c_known_encode(gs_char chr, int encoding_index);
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/*
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* Decode a gs_c_glyph_name glyph with a known encoding.
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*/
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gs_char gs_c_decode(gs_glyph glyph, int ei);
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/*
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* Convert a glyph number returned by gs_c_known_encode to a string.
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*/
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int gs_c_glyph_name(gs_glyph glyph, gs_const_string *pstr);
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/*
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* Test whether a string is one that was returned by gs_c_glyph_name.
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*/
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bool gs_is_c_glyph_name(const byte *str, uint len);
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/*
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* Return the glyph number corresponding to a string (the inverse of
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* gs_c_glyph_name), or GS_NO_GLYPH if the glyph name is not known.
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*/
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gs_glyph gs_c_name_glyph(const byte *str, uint len);
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#endif /* gscencs_INCLUDED */
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