/* Line breaking auxiliary tables.

   Copyright (C) 2001-2003, 2006-2025 Free Software Foundation, Inc.

   Written by Bruno Haible <bruno@clisp.org>, 2001.

   This file is free software.

   It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".

   You can redistribute it and/or modify it under either

     - the terms of the GNU Lesser General Public License as published

       by the Free Software Foundation, either version 3, or (at your

       option) any later version, or

     - the terms of the GNU General Public License as published by the

       Free Software Foundation; either version 2, or (at your option)

       any later version, or

     - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".

   This file 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 and the GNU General Public License

   for more details.

   You should have received a copy of the GNU Lesser General Public

   License and of the GNU General Public License along with this

   program.  If not, see <https://www.gnu.org/licenses/>.  */

#include "unitypes.h"

#ifdef __cplusplus

extern "C" {

#endif

/* Line breaking classification.  */

enum

{

  /* Values >= 41 are resolved at run time. */

  LBP_BK  = 41, /* mandatory break */

  LBP_CR  = 42, /* carriage return */

  LBP_LF  = 43, /* line feed */

  LBP_CM  = 44, /* attached characters and combining marks */

/*LBP_NL,          next line - not used here because it's equivalent to LBP_BK */

/*LBP_SG,          surrogates - not used here because they are not characters */

  LBP_WJ  =  0, /* word joiner */

  LBP_ZW  = 45, /* zero width space */

  LBP_GL  =  1, /* non-breaking (glue) */

  LBP_SP  = 46, /* space */

  LBP_B2  =  2, /* break opportunity before and after */

  LBP_BA  =  3, /* break opportunity after */

  LBP_BB  =  4, /* break opportunity before */

  LBP_HY  =  5, /* hyphen */

  LBP_CB  = 47, /* contingent break opportunity */

  LBP_CL  =  6, /* closing punctuation */

  LBP_CP1 =  7, /* closing parenthesis, non-EastAsian character */

  LBP_CP2 =  8, /* closing parenthesis, EastAsian character */

  LBP_EX  =  9, /* exclamation/interrogation */

  LBP_IN  = 10, /* inseparable */

  LBP_NS  = 11, /* non starter */

  LBP_OP1 = 12, /* opening punctuation, non-EastAsian character */

  LBP_OP2 = 13, /* opening punctuation, EastAsian character */

  LBP_QU1 = 14, /* ambiguous quotation, neither initial nor final punctuation */

  LBP_QU2 = 15, /* ambiguous quotation, initial punctuation */

  LBP_QU3 = 16, /* ambiguous quotation, final punctuation */

  LBP_IS  = 17, /* infix separator (numeric) */

  LBP_NU  = 18, /* numeric */

  LBP_PO  = 19, /* postfix (numeric) */

  LBP_PR  = 20, /* prefix (numeric) */

  LBP_SY  = 21, /* symbols allowing breaks */

  LBP_AI  = 48, /* ambiguous (alphabetic or ideograph) */

  LBP_AL1 = 22, /* ordinary alphabetic and symbol characters, != U+25CC */

  LBP_AL2 = 23, /* ordinary alphabetic and symbol characters, == U+25CC */

/*LBP_CJ,          conditional Japanese starter, resolved to NS */

  LBP_H2  = 24, /* Hangul LV syllable */

  LBP_H3  = 25, /* Hangul LVT syllable */

  LBP_HL  = 31, /* Hebrew letter */

  LBP_ID1 = 26, /* ideographic */

  LBP_ID2 = 27, /* ideographic and potential future emoji */

  LBP_JL  = 28, /* Hangul L Jamo */

  LBP_JV  = 29, /* Hangul V Jamo */

  LBP_JT  = 30, /* Hangul T Jamo */

  LBP_AP  = 32, /* Brahmic scripts: pre-base repha */

  LBP_AK  = 33, /* Brahmic scripts: consonants */

  LBP_AS  = 34, /* Brahmic scripts: independent vowels */

  LBP_VI  = 35, /* Brahmic scripts: conjoining viramas */

  LBP_VF  = 36, /* Brahmic scripts: viramas for final consonants */

  LBP_RI  = 37, /* regional indicator */

  LBP_SA  = 49, /* complex context (South East Asian) */

  LBP_ZWJ = 38, /* zero width joiner */

  LBP_EB  = 39, /* emoji base */

  LBP_EM  = 40, /* emoji modifier */

  LBP_XX  = 50, /* unknown */

  /* Artificial values that exist only at runtime, not in the tables. */

  LBP_AKLS_VI = 100,

  LBP_HL_BA = 101

};

#include "lbrkprop1.h"

/* Combining prop and ea to a table entry.  */

#define PROP_EA(prop,ea) (((prop) << 1) | (ea))

/* Splitting a table entry into prop and ea.  */

#define PROP(entry) ((entry) >> 1)

#define EA(entry) ((entry) & 1)

/* Returns (prop << 1) | ea, where

     - prop is the line breaking property,

     - ea is the EastAsian property (1 bit)

   of UC.  */

static inline unsigned char

unilbrkprop_lookup (ucs4_t uc)

{

  unsigned int index1 = uc >> lbrkprop_header_0;

  if (index1 < lbrkprop_header_1)

    {

      int lookup1 = unilbrkprop.level1[index1];

      if (lookup1 >= 0)

        {

          unsigned int index2 = (uc >> lbrkprop_header_2) & lbrkprop_header_3;

          int lookup2 = unilbrkprop.level2[lookup1 + index2];

          if (lookup2 >= 0)

            {

              unsigned int index3 = uc & lbrkprop_header_4;

              return unilbrkprop.level3[lookup2 + index3];

            }

        }

    }

  return PROP_EA (LBP_XX, 0);

}

Unexecuted instantiation: ulc-width-linebreaks.c:unilbrkprop_lookup

Unexecuted instantiation: u8-width-linebreaks.c:unilbrkprop_lookup

Unexecuted instantiation: u8-possible-linebreaks.c:unilbrkprop_lookup

Unexecuted instantiation: lbrktables.c:unilbrkprop_lookup

/* Table indexed by two line breaking classifications.  */

#define D 1  /* direct break opportunity, empty in table 7.3 of UTR #14 */

#define I 2  /* indirect break opportunity, '%' in table 7.3 of UTR #14 */

#define P 3  /* prohibited break,           '^' in table 7.3 of UTR #14 */

extern const unsigned char unilbrk_table[41][41];

/* We don't support line breaking of complex-context dependent characters

   (Thai, Lao, Myanmar, Khmer) yet, because it requires dictionary lookup. */

#ifdef __cplusplus

}

#endif