| /* |
| * Copyright © 2017 Google, Inc. |
| * |
| * This is part of HarfBuzz, a text shaping library. |
| * |
| * Permission is hereby granted, without written agreement and without |
| * license or royalty fees, to use, copy, modify, and distribute this |
| * software and its documentation for any purpose, provided that the |
| * above copyright notice and the following two paragraphs appear in |
| * all copies of this software. |
| * |
| * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
| * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
| * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
| * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| * |
| * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
| * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
| * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| * |
| * Google Author(s): Behdad Esfahbod |
| */ |
| |
| #ifndef HB_STRING_ARRAY_HH |
| #if 0 /* Make checks happy. */ |
| #define HB_STRING_ARRAY_HH |
| #endif |
| |
| #include "hb.hh" |
| |
| /* Based on Bruno Haible's code in Appendix B of Ulrich Drepper's dsohowto.pdf: |
| * https://software.intel.com/sites/default/files/m/a/1/e/dsohowto.pdf */ |
| |
| #define HB_STRING_ARRAY_TYPE_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr_t) |
| #define HB_STRING_ARRAY_POOL_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr) |
| #define HB_STRING_ARRAY_OFFS_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _msgidx) |
| #define HB_STRING_ARRAY_LENG_NAME HB_PASTE(HB_STRING_ARRAY_NAME, _length) |
| |
| static const union HB_STRING_ARRAY_TYPE_NAME { |
| struct { |
| /* I like to avoid storing the nul-termination byte since we don't need it, |
| * but C++ does not allow that. |
| * https://stackoverflow.com/q/28433862 |
| */ |
| #define _S(s) char HB_PASTE (str, __LINE__)[sizeof (s)]; |
| #include HB_STRING_ARRAY_LIST |
| #undef _S |
| } st; |
| char str[HB_VAR_ARRAY]; |
| } |
| HB_STRING_ARRAY_POOL_NAME = |
| { |
| { |
| #define _S(s) s, |
| #include HB_STRING_ARRAY_LIST |
| #undef _S |
| } |
| }; |
| static const unsigned int HB_STRING_ARRAY_OFFS_NAME[] = |
| { |
| #define _S(s) offsetof (union HB_STRING_ARRAY_TYPE_NAME, st.HB_PASTE(str, __LINE__)), |
| #include HB_STRING_ARRAY_LIST |
| #undef _S |
| sizeof (HB_STRING_ARRAY_TYPE_NAME) |
| }; |
| |
| static const unsigned int HB_STRING_ARRAY_LENG_NAME = ARRAY_LENGTH_CONST (HB_STRING_ARRAY_OFFS_NAME) - 1; |
| |
| static inline hb_bytes_t |
| HB_STRING_ARRAY_NAME (unsigned int i) |
| { |
| assert (i < ARRAY_LENGTH (HB_STRING_ARRAY_OFFS_NAME) - 1); |
| return hb_bytes_t (HB_STRING_ARRAY_POOL_NAME.str + HB_STRING_ARRAY_OFFS_NAME[i], |
| HB_STRING_ARRAY_OFFS_NAME[i + 1] - HB_STRING_ARRAY_OFFS_NAME[i] - 1); |
| } |
| |
| #undef HB_STRING_ARRAY_TYPE_NAME |
| #undef HB_STRING_ARRAY_POOL_NAME |
| #undef HB_STRING_ARRAY_OFFS_NAME |
| #undef HB_STRING_ARRAY_LENG_NAME |
| |
| #endif /* HB_STRING_ARRAY_HH */ |
