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108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/* fribidi-brackets.c - get bracketed character
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*
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* Copyright (C) 2004 Sharif FarsiWeb, Inc
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* Copyright (C) 2001, 2002, 2004 Behdad Esfahbod
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* Copyright (C) 1999, 2000, 2017 Dov Grobgeld
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*
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* This file is part of GNU FriBidi.
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*
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* GNU FriBidi is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* GNU FriBidi is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with GNU FriBidi; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* For licensing issues, contact <fribidi.license@gmail.com> or write to
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* Sharif FarsiWeb, Inc., PO Box 13445-389, Tehran, Iran.
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*/
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/*
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* Author(s):
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* Behdad Esfahbod, 2001, 2002, 2004
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* Dov Grobgeld, 1999, 2000, 2017
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*/
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#include "common.h"
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#include <fribidi-brackets.h>
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#include "brackets.tab.i"
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#include "brackets-type.tab.i"
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#include <stdio.h>
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#define FRIBIDI_TYPE_BRACKET_OPEN 2
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FRIBIDI_ENTRY FriBidiBracketType
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fribidi_get_bracket (
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/* input */
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FriBidiChar ch
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)
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{
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FriBidiBracketType bracket_type;
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register uint8_t char_type = FRIBIDI_GET_BRACKET_TYPE (ch);
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/* The bracket type from the table may be:
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0 - Not a bracket
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1 - a bracket
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2 - closing.
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This will be recodeded into the FriBidiBracketType as having a
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bracket_id = 0 if the character is not a bracket.
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*/
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fribidi_boolean is_open = false;
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if (char_type == 0)
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bracket_type = FRIBIDI_NO_BRACKET;
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else
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{
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is_open = (char_type & FRIBIDI_TYPE_BRACKET_OPEN) != 0;
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bracket_type = FRIBIDI_GET_BRACKETS (ch) & FRIBIDI_BRACKET_ID_MASK;
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}
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if (is_open)
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bracket_type |= FRIBIDI_BRACKET_OPEN_MASK;
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return bracket_type;
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}
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FRIBIDI_ENTRY void
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fribidi_get_bracket_types (
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/* input */
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const FriBidiChar *str,
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const FriBidiStrIndex len,
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const FriBidiCharType *types,
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/* output */
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FriBidiBracketType *btypes
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)
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{
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FriBidiStrIndex i;
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for (i=0; i<len; i++)
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{
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/* Optimization that bracket must be of types ON */
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if (*types == FRIBIDI_TYPE_ON)
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*btypes = fribidi_get_bracket (*str);
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else
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*btypes = FRIBIDI_NO_BRACKET;
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btypes++;
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types++;
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str++;
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}
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}
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/* Editor directions:
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* Local Variables:
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* mode: c
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* c-basic-offset: 2
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* indent-tabs-mode: t
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* tab-width: 8
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* End:
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* vim: textwidth=78: autoindent: cindent: shiftwidth=2: tabstop=8:
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*/
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