pmt: initial 3.0.2 update

2024-12-14 11:17:56 +03:00
parent bbf76e4925
commit a6c9feb4d6
1292 changed files with 500838 additions and 2817 deletions
--- a/include/libgnulib/unicase/u-ct-casefold.h
+++ b/include/libgnulib/unicase/u-ct-casefold.h
@@ -0,0 +1,115 @@
+/* Casefolding mapping for Unicode substrings (locale dependent).
+   Copyright (C) 2009-2024 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2009.
+
+   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/>.  */
+
+UNIT *
+FUNC (const UNIT *s, size_t n,
+      casing_prefix_context_t prefix_context,
+      casing_suffix_context_t suffix_context,
+      const char *iso639_language,
+      uninorm_t nf,
+      UNIT *resultbuf, size_t *lengthp)
+{
+  /* Implement the three definitions of caseless matching, as described in
+     Unicode 5.0, section "Default caseless matching":
+       - If no normalization is requested, simply apply the casefolding.
+           X -> toCasefold(X).
+       - If canonical normalization is requested, apply it, and apply an NFD
+         before.
+           X -> NFD(toCasefold(NFD(X))).
+       - If compatibility normalization is requested, apply it twice, apply
+         the normalization after each, and apply an NFD before:
+           X -> NFKD(toCasefold(NFKD(toCasefold(NFD(X))))).  */
+  if (nf == NULL)
+    /* X -> toCasefold(X) */
+    return U_CASEMAP (s, n, prefix_context, suffix_context, iso639_language,
+                      uc_tocasefold, offsetof (struct special_casing_rule, casefold[0]),
+                      NULL,
+                      resultbuf, lengthp);
+  else
+    {
+      uninorm_t nfd = uninorm_decomposing_form (nf);
+      /* X -> nf(toCasefold(NFD(X))) or
+         X -> nf(toCasefold(nfd(toCasefold(NFD(X)))))  */
+      int repeat = (uninorm_is_compat_decomposing (nf) ? 2 : 1);
+      UNIT tmpbuf1[2048 / sizeof (UNIT)];
+      UNIT tmpbuf2[2048 / sizeof (UNIT)];
+      UNIT *tmp1;
+      size_t tmp1_length;
+      UNIT *tmp2;
+      size_t tmp2_length;
+
+      tmp1_length = sizeof (tmpbuf1) / sizeof (UNIT);
+      tmp1 = U_NORMALIZE (UNINORM_NFD, s, n, tmpbuf1, &tmp1_length);
+      if (tmp1 == NULL)
+        /* errno is set here.  */
+        return NULL;
+
+      do
+        {
+          tmp2_length = sizeof (tmpbuf2) / sizeof (UNIT);
+          tmp2 = U_CASEMAP (tmp1, tmp1_length,
+                            prefix_context, suffix_context, iso639_language,
+                            uc_tocasefold, offsetof (struct special_casing_rule, casefold[0]),
+                            NULL,
+                            tmpbuf2, &tmp2_length);
+          if (tmp2 == NULL)
+            {
+              int saved_errno = errno;
+              if (tmp1 != tmpbuf1)
+                free (tmp1);
+              errno = saved_errno;
+              return NULL;
+            }
+
+          if (tmp1 != tmpbuf1)
+            free (tmp1);
+
+          if (repeat > 1)
+            {
+              tmp1_length = sizeof (tmpbuf1) / sizeof (UNIT);
+              tmp1 = U_NORMALIZE (nfd, tmp2, tmp2_length,
+                                  tmpbuf1, &tmp1_length);
+            }
+          else
+            /* Last run through this loop.  */
+            tmp1 = U_NORMALIZE (nf, tmp2, tmp2_length,
+                                resultbuf, lengthp);
+          if (tmp1 == NULL)
+            {
+              int saved_errno = errno;
+              if (tmp2 != tmpbuf2)
+                free (tmp2);
+              errno = saved_errno;
+              return NULL;
+            }
+
+          if (tmp2 != tmpbuf2)
+            free (tmp2);
+        }
+      while (--repeat > 0);
+
+      return tmp1;
+    }
+}