diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /support/dktools/dk4rec11.c |
Initial commit
Diffstat (limited to 'support/dktools/dk4rec11.c')
-rw-r--r-- | support/dktools/dk4rec11.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/support/dktools/dk4rec11.c b/support/dktools/dk4rec11.c new file mode 100644 index 0000000000..138d58d453 --- /dev/null +++ b/support/dktools/dk4rec11.c @@ -0,0 +1,178 @@ +/* + WARNING: This file was generated by dkct. + Changes you make here will be lost if dkct is run again! + You should modify the original source and run dkct on it. + Original source: dk4rec11.ctr +*/ + +/* +Copyright (C) 2015-2017, Dirk Krause + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. +* Redistributions in binary form must reproduce the above opyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. +* Neither the name of the author nor the names of contributors may be used + to endorse or promote products derived from this software without specific + prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. +IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/** @file dk4rec11.c The dk4rec11 module. +*/ + + +#line 76 "dk4rec11.ctr" + +#include "dk4rec11.h" +#include "dk4mem.h" +#include "dk4utf8.h" +#include "dk4utf16.h" + + + + +#line 84 "dk4rec11.ctr" + + + +size_t +dk4recode_size_utf8_to_utf16(const char *src, dk4_er_t *erp) +{ + dk4_er_t er; + dk4_utf8_decoder_t dec; + dk4_c16_t c16[4]; + size_t rdb = 0; + size_t back = 0; + size_t sz; + dk4_c32_t c32; + + if (NULL != src) { + /* Initialize data structures. + */ + dk4error_init(&er); + dk4utf8_init(&dec); + /* Process source string. + */ + while ('\0' != *src) { + rdb++; + switch(dk4utf8_add(&dec, (unsigned char)(*(src++)))) { + case DK4_EDSTM_FINISHED: { + c32 = dk4utf8_get(&dec); + dk4utf8_init(&dec); + sz = DK4_SIZEOF(c16,dk4_c16_t); + if (0 != dk4utf16_encode(c16, &sz, c32, &er)) { + if ((SIZE_MAX - sz) >= back) { + back += sz; + } else { + dk4error_set_simple_error_code(&er, DK4_E_MATH_OVERFLOW); + } + } else { + dk4error_set_elsize_nelem(&er, DK4_E_SYNTAX, 1, rdb); + } + } break; + case DK4_EDSTM_ERROR: { + dk4error_set_elsize_nelem(&er, DK4_E_SYNTAX, 1, rdb); + } break; + } + } + if (0 == dk4utf8_is_empty(&dec)) { + dk4error_set_elsize_nelem(&er, DK4_E_SYNTAX, 1, rdb); + } + /* Add one for the finalizer. + */ + if (SIZE_MAX == back) { + dk4error_set_simple_error_code(&er, DK4_E_MATH_OVERFLOW); + } else { + back++; + } + /* On error return 0 and pass error code. + */ + if (DK4_E_NONE != er.ec) { + back = 0; + dk4error_copy(erp, &er); + } + } else { + dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); + } + return back; +} + + + +int +dk4recode_utf8_to_utf16( + dk4_c16_t *dstb, size_t szdstb, const char *src, dk4_er_t *erp +) +{ + dk4_c16_t buf[8]; + dk4_utf8_decoder_t dec; + size_t sz; + size_t used = 0; + size_t rdb = 0; + dk4_c32_t c32 = dkC32(0); + int back = 0; + + if ((NULL != dstb) && (NULL != src) && (0 < szdstb)) { + back = 1; + dk4utf8_init(&dec); + while(('\0' != *src) && (1 == back) && (used < szdstb)) { + switch(dk4utf8_add(&dec, (unsigned char)(*(src++)))) { + case DK4_EDSTM_FINISHED: { + c32 = dk4utf8_get(&dec); + dk4utf8_init(&dec); + sz = DK4_SIZEOF(buf,dk4_c16_t); + if (0 != dk4utf16_encode(buf, &sz, c32, erp)) { + if ((szdstb - used) > sz) { + DK4_MEMCPY(&(dstb[used]),buf,(2 * sz)); + used += sz; + } else { + back = 0; + dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL); + } + } else { + back = 0; + dk4error_set_elsize_nelem(erp, DK4_E_SYNTAX, 1, rdb); + } + } break; + case DK4_EDSTM_ERROR: { + back = 0; + dk4error_set_elsize_nelem(erp, DK4_E_SYNTAX, 1, rdb); + } break; + } + if(back) { rdb++; } + } + if (used < szdstb) { + dstb[used] = (dk4_c16_t)0U; + } else { + dstb[szdstb - 1] = (dk4_c16_t)0U; + back = 0; + dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL); + } + if (0 == dk4utf8_is_empty(&dec)) { + back = 0; + dk4error_set_elsize_nelem(erp, DK4_E_SYNTAX, 1, rdb); + } + } else { + dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); + } + return back; +} + + + |