Merge pull request libgit2#6593 from libgit2/ethomson/pcre-8.45

deps: update pcre to 8.45

Author: ethomson

deps/pcre/LICENCE

@@ -19,13 +19,13 @@ THE BASIC LIBRARY FUNCTIONS
 ---------------------------
 
 Written by:       Philip Hazel
-Email local part: ph10
-Email domain:     cam.ac.uk
+Email local part: Philip.Hazel
+Email domain:     gmail.com
 
 University of Cambridge Computing Service,
 Cambridge, England.
 
-Copyright (c) 1997-2020 University of Cambridge
+Copyright (c) 1997-2021 University of Cambridge
 All rights reserved.
 
 
@@ -36,7 +36,7 @@ Written by:       Zoltan Herczeg
 Email local part: hzmester
 Email domain:     freemail.hu
 
-Copyright(c) 2010-2020 Zoltan Herczeg
+Copyright(c) 2010-2021 Zoltan Herczeg
 All rights reserved.
 
 
@@ -47,7 +47,7 @@ Written by:       Zoltan Herczeg
 Email local part: hzmester
 Email domain:     freemail.hu
 
-Copyright(c) 2009-2020 Zoltan Herczeg
+Copyright(c) 2009-2021 Zoltan Herczeg
 All rights reserved.
 
 

deps/pcre/pcre.h

@@ -42,9 +42,9 @@ POSSIBILITY OF SUCH DAMAGE.
 /* The current PCRE version information. */
 
 #define PCRE_MAJOR          8
-#define PCRE_MINOR          44
+#define PCRE_MINOR          45
 #define PCRE_PRERELEASE
-#define PCRE_DATE           2020-02-12
+#define PCRE_DATE           2021-06-15
 
 #define PCRE_EXP_DECL  extern
 

deps/pcre/pcre_compile.c

@@ -6,7 +6,7 @@
 and semantics are as close as possible to those of the Perl 5 language.
 
                        Written by Philip Hazel
-           Copyright (c) 1997-2020 University of Cambridge
+           Copyright (c) 1997-2021 University of Cambridge
 
 -----------------------------------------------------------------------------
 Redistribution and use in source and binary forms, with or without
@@ -9104,6 +9104,8 @@ pcre_uchar cworkspace[COMPILE_WORK_SIZE];
 similar way to cworkspace, it can be expanded using malloc() if necessary. */
 
 named_group named_groups[NAMED_GROUP_LIST_SIZE];
+cd->named_groups = named_groups;
+cd->named_group_list_size = NAMED_GROUP_LIST_SIZE;
 
 /* Set this early so that early errors get offset 0. */
 
@@ -9377,8 +9379,6 @@ cd->hwm = cworkspace;
 cd->iscondassert = FALSE;
 cd->start_workspace = cworkspace;
 cd->workspace_size = COMPILE_WORK_SIZE;
-cd->named_groups = named_groups;
-cd->named_group_list_size = NAMED_GROUP_LIST_SIZE;
 cd->start_pattern = (const pcre_uchar *)pattern;
 cd->end_pattern = (const pcre_uchar *)(pattern + STRLEN_UC((const pcre_uchar *)pattern));
 cd->req_varyopt = 0;
@@ -9489,6 +9489,7 @@ if (cd->names_found > 0)
     add_name(cd, ng->name, ng->length, ng->number);
   if (cd->named_group_list_size > NAMED_GROUP_LIST_SIZE)
     (PUBL(free))((void *)cd->named_groups);
+  cd->named_group_list_size = 0;   /* So we don't free it twice */
   }
 
 /* Set up a starting, non-extracting bracket, then compile the expression. On
@@ -9639,6 +9640,8 @@ if (errorcode != 0)
   {
   (PUBL(free))(re);
   PCRE_EARLY_ERROR_RETURN:
+  if (cd->named_group_list_size > NAMED_GROUP_LIST_SIZE)
+    (PUBL(free))((void *)cd->named_groups);
   *erroroffset = (int)(ptr - (const pcre_uchar *)pattern);
   PCRE_EARLY_ERROR_RETURN2:
   *errorptr = find_error_text(errorcode);

deps/pcre/pcre_exec.c

@@ -6,7 +6,7 @@
 and semantics are as close as possible to those of the Perl 5 language.
 
                        Written by Philip Hazel
-           Copyright (c) 1997-2018 University of Cambridge
+           Copyright (c) 1997-2021 University of Cambridge
 
 -----------------------------------------------------------------------------
 Redistribution and use in source and binary forms, with or without
@@ -758,7 +758,7 @@ for (;;)
     md->mark = NULL;    /* In case previously set by assertion */
     RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode] + ecode[1], offset_top, md,
       eptrb, RM55);
-    if ((rrc == MATCH_MATCH || rrc == MATCH_ACCEPT) &&
+    if ((rrc == MATCH_MATCH || rrc == MATCH_ACCEPT || rrc == MATCH_KETRPOS) &&
          md->mark == NULL) md->mark = ecode + 2;
 
     /* A return of MATCH_SKIP_ARG means that matching failed at SKIP with an