Merge branch 'pan/update_pcre_8.33'

* pan/update_pcre_8.33:
  Workaround TR gnu/181328, GCC 4.2.1 20070831 on FreeBSD 9.1
  Clarify relation between erts_iolist_{size|to_buf}
  Fix backslash in titles of manpages
  Correct UTF-8 in stdlib's notes.xml
  Add more tests for corner error cases in erl_bif_re.c
  Add documentation of report_errors and match_limit(_recursion)
  Add match_limit and match_limit_recursion options
  Add return_errors option to re:run/3
  Add README for updating PCRE
  Add documentation of extensions to re module
  Add new options to Erlang re interface and mend dupnames
  Update PCRE doc part of re.xml to PCRE 8.33 state
  Integrate new PCRE test suites
  Integrate patch for PCRE bug id 1370
  Handle CRLF correctly in global regexp
  Add erts_prefix to pcre_library and update erl_bif_re
  Update to PCRE 8.33, w/o the erts_ prefix added

OTP-11204
OTP-11205
OTP-10285

1 files changed, 211 insertions, 0 deletions

diff --git a/erts/emulator/pcre/pcre_string_utils.c b/erts/emulator/pcre/pcre_string_utils.c
new file mode 100644
index 0000000000..274070469f
--- /dev/null
+++ b/erts/emulator/pcre/pcre_string_utils.c
@@ -0,0 +1,211 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2013 University of Cambridge
+
+-----------------------------------------------------------------------------
+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 copyright
+      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 University of Cambridge nor the names of its
+      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.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains internal functions for comparing and finding the length
+of strings for different data item sizes. */
+/* %ExternalCopyright% */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+#ifndef COMPILE_PCRE8
+
+/*************************************************
+*           Compare string utilities             *
+*************************************************/
+
+/* The following two functions compares two strings. Basically a strcmp
+for non 8 bit characters.
+
+Arguments:
+  str1        first string
+  str2        second string
+
+Returns:      0 if both string are equal (like strcmp), 1 otherwise
+*/
+
+int
+PRIV(strcmp_uc_uc)(const pcre_uchar *str1, const pcre_uchar *str2)
+{
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *str2 != '\0')
+  {
+  c1 = *str1++;
+  c2 = *str2++;
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+#ifdef COMPILE_PCRE32
+
+int
+PRIV(strcmp_uc_uc_utf)(const pcre_uchar *str1, const pcre_uchar *str2)
+{
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *str2 != '\0')
+  {
+  c1 = RAWUCHARINC(str1);
+  c2 = RAWUCHARINC(str2);
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+#endif /* COMPILE_PCRE32 */
+
+int
+PRIV(strcmp_uc_c8)(const pcre_uchar *str1, const char *str2)
+{
+const pcre_uint8 *ustr2 = (pcre_uint8 *)str2;
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *ustr2 != '\0')
+  {
+  c1 = *str1++;
+  c2 = (pcre_uchar)*ustr2++;
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+#ifdef COMPILE_PCRE32
+
+int
+PRIV(strcmp_uc_c8_utf)(const pcre_uchar *str1, const char *str2)
+{
+const pcre_uint8 *ustr2 = (pcre_uint8 *)str2;
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *ustr2 != '\0')
+  {
+  c1 = RAWUCHARINC(str1);
+  c2 = (pcre_uchar)*ustr2++;
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+#endif /* COMPILE_PCRE32 */
+
+/* The following two functions compares two, fixed length
+strings. Basically an strncmp for non 8 bit characters.
+
+Arguments:
+  str1        first string
+  str2        second string
+  num         size of the string
+
+Returns:      0 if both string are equal (like strcmp), 1 otherwise
+*/
+
+int
+PRIV(strncmp_uc_uc)(const pcre_uchar *str1, const pcre_uchar *str2, unsigned int num)
+{
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (num-- > 0)
+  {
+  c1 = *str1++;
+  c2 = *str2++;
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+int
+PRIV(strncmp_uc_c8)(const pcre_uchar *str1, const char *str2, unsigned int num)
+{
+const pcre_uint8 *ustr2 = (pcre_uint8 *)str2;
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (num-- > 0)
+  {
+  c1 = *str1++;
+  c2 = (pcre_uchar)*ustr2++;
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+/* The following function returns with the length of
+a zero terminated string. Basically an strlen for non 8 bit characters.
+
+Arguments:
+  str         string
+
+Returns:      length of the string
+*/
+
+unsigned int
+PRIV(strlen_uc)(const pcre_uchar *str)
+{
+unsigned int len = 0;
+while (*str++ != 0)
+  len++;
+return len;
+}
+
+#endif /* !COMPILE_PCRE8 */
+
+/* End of pcre_string_utils.c */