73 lines
2.2 KiB
C
Executable File
73 lines
2.2 KiB
C
Executable File
/* Normalization insensitive comparison of Unicode strings.
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Copyright (C) 2009-2024 Free Software Foundation, Inc.
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Written by Bruno Haible <bruno@clisp.org>, 2009.
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This file is free software.
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It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
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You can redistribute it and/or modify it under either
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- the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation, either version 3, or (at your
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option) any later version, or
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- the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option)
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any later version, or
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- the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
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This file 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 GNU
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Lesser General Public License and the GNU General Public License
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for more details.
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You should have received a copy of the GNU Lesser General Public
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License and of the GNU General Public License along with this
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program. If not, see <https://www.gnu.org/licenses/>. */
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int
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FUNC (const UNIT *s1, size_t n1, const UNIT *s2, size_t n2,
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uninorm_t nf, int *resultp)
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{
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UNIT buf1[2048 / sizeof (UNIT)];
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UNIT buf2[2048 / sizeof (UNIT)];
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UNIT *norms1;
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size_t norms1_length;
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UNIT *norms2;
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size_t norms2_length;
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int cmp;
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/* Normalize S1. */
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norms1_length = sizeof (buf1) / sizeof (UNIT);
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norms1 = U_NORMALIZE (nf, s1, n1, buf1, &norms1_length);
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if (norms1 == NULL)
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/* errno is set here. */
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return -1;
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/* Normalize S2. */
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norms2_length = sizeof (buf2) / sizeof (UNIT);
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norms2 = U_NORMALIZE (nf, s2, n2, buf2, &norms2_length);
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if (norms2 == NULL)
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{
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if (norms1 != buf1)
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{
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int saved_errno = errno;
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free (norms1);
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errno = saved_errno;
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}
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return -1;
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}
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/* Compare the normalized strings. */
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cmp = U_CMP2 (norms1, norms1_length, norms2, norms2_length);
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if (cmp > 0)
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cmp = 1;
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else if (cmp < 0)
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cmp = -1;
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if (norms2 != buf2)
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free (norms2);
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if (norms1 != buf1)
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free (norms1);
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*resultp = cmp;
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return 0;
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}
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