Adding upstream version 1.21.3.upstream/1.21.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 523 insertions, 0 deletions

diff --git a/lib/unistr/u-cpy.h b/lib/unistr/u-cpy.h
new file mode 100644
index 0000000..f0b3bc8
--- /dev/null
+++ b/lib/unistr/u-cpy.h
@@ -0,0 +1,33 @@
+/* Copy piece of UTF-8/UTF-16/UTF-32 string.
+   Copyright (C) 1999, 2002, 2006, 2009-2022 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2002.
+
+   This file is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   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 for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <string.h>
+
+UNIT *
+FUNC (UNIT *dest, const UNIT *src, size_t n)
+{
+#if 0
+  UNIT *destptr = dest;
+
+  for (; n > 0; n--)
+    *destptr++ = *src++;
+#else
+  if (n > 0)
+    memcpy ((char *) dest, (const char *) src, n * sizeof (UNIT));
+#endif
+  return dest;
+}
diff --git a/lib/unistr/u8-cpy.c b/lib/unistr/u8-cpy.c
new file mode 100644
index 0000000..e25c264
--- /dev/null
+++ b/lib/unistr/u8-cpy.c
@@ -0,0 +1,33 @@
+/* Copy piece of UTF-8 string.
+   Copyright (C) 2002, 2006, 2009-2022 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2002.
+
+   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 <config.h>
+
+/* Specification.  */
+#include "unistr.h"
+
+#define FUNC u8_cpy
+#define UNIT uint8_t
+#include "u-cpy.h"
diff --git a/lib/unistr/u8-mbtouc-unsafe-aux.c b/lib/unistr/u8-mbtouc-unsafe-aux.c
new file mode 100644
index 0000000..36e40af
--- /dev/null
+++ b/lib/unistr/u8-mbtouc-unsafe-aux.c
@@ -0,0 +1,139 @@
+/* Conversion UTF-8 to UCS-4.
+   Copyright (C) 2001-2002, 2006-2007, 2009-2022 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2001.
+
+   This file is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   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 for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "unistr.h"
+
+#if defined IN_LIBUNISTRING || HAVE_INLINE
+
+int
+u8_mbtouc_unsafe_aux (ucs4_t *puc, const uint8_t *s, size_t n)
+{
+  uint8_t c = *s;
+
+  if (c >= 0xc2)
+    {
+      if (c < 0xe0)
+        {
+          if (n >= 2)
+            {
+              if ((s[1] ^ 0x80) < 0x40)
+                {
+                  *puc = ((unsigned int) (c & 0x1f) << 6)
+                         | (unsigned int) (s[1] ^ 0x80);
+                  return 2;
+                }
+              /* invalid multibyte character */
+            }
+          else
+            {
+              /* incomplete multibyte character */
+              *puc = 0xfffd;
+              return 1;
+            }
+        }
+      else if (c < 0xf0)
+        {
+          if (n >= 3)
+            {
+              if ((s[1] ^ 0x80) < 0x40)
+                {
+                  if ((s[2] ^ 0x80) < 0x40)
+                    {
+                      if ((c >= 0xe1 || s[1] >= 0xa0)
+                          && (c != 0xed || s[1] < 0xa0))
+                        {
+                          *puc = ((unsigned int) (c & 0x0f) << 12)
+                                 | ((unsigned int) (s[1] ^ 0x80) << 6)
+                                 | (unsigned int) (s[2] ^ 0x80);
+                          return 3;
+                        }
+                      /* invalid multibyte character */
+                      *puc = 0xfffd;
+                      return 3;
+                    }
+                  /* invalid multibyte character */
+                  *puc = 0xfffd;
+                  return 2;
+                }
+              /* invalid multibyte character */
+            }
+          else
+            {
+              /* incomplete multibyte character */
+              *puc = 0xfffd;
+              if (n == 1 || (s[1] ^ 0x80) >= 0x40)
+                return 1;
+              else
+                return 2;
+            }
+        }
+      else if (c < 0xf8)
+        {
+          if (n >= 4)
+            {
+              if ((s[1] ^ 0x80) < 0x40)
+                {
+                  if ((s[2] ^ 0x80) < 0x40)
+                    {
+                      if ((s[3] ^ 0x80) < 0x40)
+                        {
+                          if ((c >= 0xf1 || s[1] >= 0x90)
+                              && (c < 0xf4 || (c == 0xf4 && s[1] < 0x90))
+                             )
+                            {
+                              *puc = ((unsigned int) (c & 0x07) << 18)
+                                     | ((unsigned int) (s[1] ^ 0x80) << 12)
+                                     | ((unsigned int) (s[2] ^ 0x80) << 6)
+                                     | (unsigned int) (s[3] ^ 0x80);
+                              return 4;
+                            }
+                          /* invalid multibyte character */
+                          *puc = 0xfffd;
+                          return 4;
+                        }
+                      /* invalid multibyte character */
+                      *puc = 0xfffd;
+                      return 3;
+                    }
+                  /* invalid multibyte character */
+                  *puc = 0xfffd;
+                  return 2;
+                }
+              /* invalid multibyte character */
+            }
+          else
+            {
+              /* incomplete multibyte character */
+              *puc = 0xfffd;
+              if (n == 1 || (s[1] ^ 0x80) >= 0x40)
+                return 1;
+              else if (n == 2 || (s[2] ^ 0x80) >= 0x40)
+                return 2;
+              else
+                return 3;
+            }
+        }
+    }
+  /* invalid multibyte character */
+  *puc = 0xfffd;
+  return 1;
+}
+
+#endif
diff --git a/lib/unistr/u8-mbtouc-unsafe.c b/lib/unistr/u8-mbtouc-unsafe.c
new file mode 100644
index 0000000..3dd30a1
--- /dev/null
+++ b/lib/unistr/u8-mbtouc-unsafe.c
@@ -0,0 +1,150 @@
+/* Look at first character in UTF-8 string.
+   Copyright (C) 1999-2002, 2006-2007, 2009-2022 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2001.
+
+   This file is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   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 for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#if defined IN_LIBUNISTRING
+/* Tell unistr.h to declare u8_mbtouc_unsafe as 'extern', not
+   'static inline'.  */
+# include "unistring-notinline.h"
+#endif
+
+/* Specification.  */
+#include "unistr.h"
+
+#if !HAVE_INLINE
+
+int
+u8_mbtouc_unsafe (ucs4_t *puc, const uint8_t *s, size_t n)
+{
+  uint8_t c = *s;
+
+  if (c < 0x80)
+    {
+      *puc = c;
+      return 1;
+    }
+  else if (c >= 0xc2)
+    {
+      if (c < 0xe0)
+        {
+          if (n >= 2)
+            {
+              if ((s[1] ^ 0x80) < 0x40)
+                {
+                  *puc = ((unsigned int) (c & 0x1f) << 6)
+                         | (unsigned int) (s[1] ^ 0x80);
+                  return 2;
+                }
+              /* invalid multibyte character */
+            }
+          else
+            {
+              /* incomplete multibyte character */
+              *puc = 0xfffd;
+              return 1;
+            }
+        }
+      else if (c < 0xf0)
+        {
+          if (n >= 3)
+            {
+              if ((s[1] ^ 0x80) < 0x40)
+                {
+                  if ((s[2] ^ 0x80) < 0x40)
+                    {
+                      if ((c >= 0xe1 || s[1] >= 0xa0)
+                          && (c != 0xed || s[1] < 0xa0))
+                        {
+                          *puc = ((unsigned int) (c & 0x0f) << 12)
+                                 | ((unsigned int) (s[1] ^ 0x80) << 6)
+                                 | (unsigned int) (s[2] ^ 0x80);
+                          return 3;
+                        }
+                      /* invalid multibyte character */
+                      *puc = 0xfffd;
+                      return 3;
+                    }
+                  /* invalid multibyte character */
+                  *puc = 0xfffd;
+                  return 2;
+                }
+              /* invalid multibyte character */
+            }
+          else
+            {
+              /* incomplete multibyte character */
+              *puc = 0xfffd;
+              if (n == 1 || (s[1] ^ 0x80) >= 0x40)
+                return 1;
+              else
+                return 2;
+            }
+        }
+      else if (c < 0xf8)
+        {
+          if (n >= 4)
+            {
+              if ((s[1] ^ 0x80) < 0x40)
+                {
+                  if ((s[2] ^ 0x80) < 0x40)
+                    {
+                      if ((s[3] ^ 0x80) < 0x40)
+                        {
+                          if ((c >= 0xf1 || s[1] >= 0x90)
+                              && (c < 0xf4 || (c == 0xf4 && s[1] < 0x90))
+                             )
+                            {
+                              *puc = ((unsigned int) (c & 0x07) << 18)
+                                     | ((unsigned int) (s[1] ^ 0x80) << 12)
+                                     | ((unsigned int) (s[2] ^ 0x80) << 6)
+                                     | (unsigned int) (s[3] ^ 0x80);
+                              return 4;
+                            }
+                          /* invalid multibyte character */
+                          *puc = 0xfffd;
+                          return 4;
+                        }
+                      /* invalid multibyte character */
+                      *puc = 0xfffd;
+                      return 3;
+                    }
+                  /* invalid multibyte character */
+                  *puc = 0xfffd;
+                  return 2;
+                }
+              /* invalid multibyte character */
+            }
+          else
+            {
+              /* incomplete multibyte character */
+              *puc = 0xfffd;
+              if (n == 1 || (s[1] ^ 0x80) >= 0x40)
+                return 1;
+              else if (n == 2 || (s[2] ^ 0x80) >= 0x40)
+                return 2;
+              else
+                return 3;
+            }
+        }
+    }
+  /* invalid multibyte character */
+  *puc = 0xfffd;
+  return 1;
+}
+
+#endif
diff --git a/lib/unistr/u8-strlen.c b/lib/unistr/u8-strlen.c
new file mode 100644
index 0000000..6892ec0
--- /dev/null
+++ b/lib/unistr/u8-strlen.c
@@ -0,0 +1,29 @@
+/* Determine length of UTF-8 string.
+   Copyright (C) 2002, 2006, 2009-2022 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2002.
+
+   This file is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   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 for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "unistr.h"
+
+#include <string.h>
+
+size_t
+u8_strlen (const uint8_t *s)
+{
+  return strlen ((const char *) s);
+}
diff --git a/lib/unistr/u8-uctomb-aux.c b/lib/unistr/u8-uctomb-aux.c
new file mode 100644
index 0000000..5ca2191
--- /dev/null
+++ b/lib/unistr/u8-uctomb-aux.c
@@ -0,0 +1,60 @@
+/* Conversion UCS-4 to UTF-8.
+   Copyright (C) 2002, 2006-2007, 2009-2022 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2002.
+
+   This file is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   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 for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "unistr.h"
+
+#include "attribute.h"
+
+int
+u8_uctomb_aux (uint8_t *s, ucs4_t uc, ptrdiff_t n)
+{
+  int count;
+
+  if (uc < 0x80)
+    /* The case n >= 1 is already handled by the caller.  */
+    return -2;
+  else if (uc < 0x800)
+    count = 2;
+  else if (uc < 0x10000)
+    {
+      if (uc < 0xd800 || uc >= 0xe000)
+        count = 3;
+      else
+        return -1;
+    }
+  else if (uc < 0x110000)
+    count = 4;
+  else
+    return -1;
+
+  if (n < count)
+    return -2;
+
+  switch (count) /* note: code falls through cases! */
+    {
+    case 4: s[3] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x10000;
+      FALLTHROUGH;
+    case 3: s[2] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x800;
+      FALLTHROUGH;
+    case 2: s[1] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0xc0;
+  /*case 1:*/ s[0] = uc;
+    }
+  return count;
+}
diff --git a/lib/unistr/u8-uctomb.c b/lib/unistr/u8-uctomb.c
new file mode 100644
index 0000000..2259b1d
--- /dev/null
+++ b/lib/unistr/u8-uctomb.c
@@ -0,0 +1,79 @@
+/* Store a character in UTF-8 string.
+   Copyright (C) 2002, 2005-2006, 2009-2022 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2002.
+
+   This file is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   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 for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#if defined IN_LIBUNISTRING
+/* Tell unistr.h to declare u8_uctomb as 'extern', not 'static inline'.  */
+# include "unistring-notinline.h"
+#endif
+
+/* Specification.  */
+#include "unistr.h"
+
+#include "attribute.h"
+
+#if !HAVE_INLINE
+
+int
+u8_uctomb (uint8_t *s, ucs4_t uc, ptrdiff_t n)
+{
+  if (uc < 0x80)
+    {
+      if (n > 0)
+        {
+          s[0] = uc;
+          return 1;
+        }
+      /* else return -2, below.  */
+    }
+  else
+    {
+      int count;
+
+      if (uc < 0x800)
+        count = 2;
+      else if (uc < 0x10000)
+        {
+          if (uc < 0xd800 || uc >= 0xe000)
+            count = 3;
+          else
+            return -1;
+        }
+      else if (uc < 0x110000)
+        count = 4;
+      else
+        return -1;
+
+      if (n >= count)
+        {
+          switch (count) /* note: code falls through cases! */
+            {
+            case 4: s[3] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x10000;
+              FALLTHROUGH;
+            case 3: s[2] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x800;
+              FALLTHROUGH;
+            case 2: s[1] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0xc0;
+          /*case 1:*/ s[0] = uc;
+            }
+          return count;
+        }
+    }
+  return -2;
+}
+
+#endif