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-rw-r--r--erts/emulator/pcre/pcre_fullinfo.c122
1 files changed, 102 insertions, 20 deletions
diff --git a/erts/emulator/pcre/pcre_fullinfo.c b/erts/emulator/pcre/pcre_fullinfo.c
index 559c4e27b4..1636c5978f 100644
--- a/erts/emulator/pcre/pcre_fullinfo.c
+++ b/erts/emulator/pcre/pcre_fullinfo.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) 1997-2008 University of Cambridge
+ Copyright (c) 1997-2013 University of Cambridge
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
@@ -38,7 +38,7 @@ POSSIBILITY OF SUCH DAMAGE.
*/
-/* This module contains the external function erts_pcre_fullinfo(), which returns
+/* This module contains the external function pcre_fullinfo(), which returns
information about a compiled pattern. */
/* %ExternalCopyright% */
@@ -66,13 +66,27 @@ Arguments:
Returns: 0 if data returned, negative on error
*/
-PCRE_EXP_DEFN int
-erts_pcre_fullinfo(const pcre *argument_re, const pcre_extra *extra_data, int what,
- void *where)
+#if defined COMPILE_PCRE8
+#if defined(ERLANG_INTEGRATION)
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+erts_pcre_fullinfo(const pcre *argument_re, const erts_pcre_extra *extra_data,
+ int what, void *where)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_fullinfo(const pcre *argument_re, const pcre_extra *extra_data,
+ int what, void *where)
+#endif
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_fullinfo(const pcre16 *argument_re, const pcre16_extra *extra_data,
+ int what, void *where)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre32_fullinfo(const pcre32 *argument_re, const pcre32_extra *extra_data,
+ int what, void *where)
+#endif
{
-real_pcre internal_re;
-pcre_study_data internal_study;
-const real_pcre *re = (const real_pcre *)argument_re;
+const REAL_PCRE *re = (const REAL_PCRE *)argument_re;
const pcre_study_data *study = NULL;
if (re == NULL || where == NULL) return PCRE_ERROR_NULL;
@@ -80,17 +94,23 @@ if (re == NULL || where == NULL) return PCRE_ERROR_NULL;
if (extra_data != NULL && (extra_data->flags & PCRE_EXTRA_STUDY_DATA) != 0)
study = (const pcre_study_data *)extra_data->study_data;
+/* Check that the first field in the block is the magic number. If it is not,
+return with PCRE_ERROR_BADMAGIC. However, if the magic number is equal to
+REVERSED_MAGIC_NUMBER we return with PCRE_ERROR_BADENDIANNESS, which
+means that the pattern is likely compiled with different endianness. */
+
if (re->magic_number != MAGIC_NUMBER)
- {
- re = _erts_pcre_try_flipped(re, &internal_re, study, &internal_study);
- if (re == NULL) return PCRE_ERROR_BADMAGIC;
- if (study != NULL) study = &internal_study;
- }
+ return re->magic_number == REVERSED_MAGIC_NUMBER?
+ PCRE_ERROR_BADENDIANNESS:PCRE_ERROR_BADMAGIC;
+
+/* Check that this pattern was compiled in the correct bit mode */
+
+if ((re->flags & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE;
switch (what)
{
case PCRE_INFO_OPTIONS:
- *((unsigned long int *)where) = re->options & PUBLIC_OPTIONS;
+ *((unsigned long int *)where) = re->options & PUBLIC_COMPILE_OPTIONS;
break;
case PCRE_INFO_SIZE:
@@ -101,6 +121,18 @@ switch (what)
*((size_t *)where) = (study == NULL)? 0 : study->size;
break;
+ case PCRE_INFO_JITSIZE:
+#ifdef SUPPORT_JIT
+ *((size_t *)where) =
+ (extra_data != NULL &&
+ (extra_data->flags & PCRE_EXTRA_EXECUTABLE_JIT) != 0 &&
+ extra_data->executable_jit != NULL)?
+ PRIV(jit_get_size)(extra_data->executable_jit) : 0;
+#else
+ *((size_t *)where) = 0;
+#endif
+ break;
+
case PCRE_INFO_CAPTURECOUNT:
*((int *)where) = re->top_bracket;
break;
@@ -111,24 +143,57 @@ switch (what)
case PCRE_INFO_FIRSTBYTE:
*((int *)where) =
- ((re->flags & PCRE_FIRSTSET) != 0)? re->first_byte :
+ ((re->flags & PCRE_FIRSTSET) != 0)? (int)re->first_char :
((re->flags & PCRE_STARTLINE) != 0)? -1 : -2;
break;
+ case PCRE_INFO_FIRSTCHARACTER:
+ *((pcre_uint32 *)where) =
+ (re->flags & PCRE_FIRSTSET) != 0 ? re->first_char : 0;
+ break;
+
+ case PCRE_INFO_FIRSTCHARACTERFLAGS:
+ *((int *)where) =
+ ((re->flags & PCRE_FIRSTSET) != 0) ? 1 :
+ ((re->flags & PCRE_STARTLINE) != 0) ? 2 : 0;
+ break;
+
/* Make sure we pass back the pointer to the bit vector in the external
block, not the internal copy (with flipped integer fields). */
case PCRE_INFO_FIRSTTABLE:
- *((const uschar **)where) =
- (study != NULL && (study->options & PCRE_STUDY_MAPPED) != 0)?
+ *((const pcre_uint8 **)where) =
+ (study != NULL && (study->flags & PCRE_STUDY_MAPPED) != 0)?
((const pcre_study_data *)extra_data->study_data)->start_bits : NULL;
break;
+ case PCRE_INFO_MINLENGTH:
+ *((int *)where) =
+ (study != NULL && (study->flags & PCRE_STUDY_MINLEN) != 0)?
+ (int)(study->minlength) : -1;
+ break;
+
+ case PCRE_INFO_JIT:
+ *((int *)where) = extra_data != NULL &&
+ (extra_data->flags & PCRE_EXTRA_EXECUTABLE_JIT) != 0 &&
+ extra_data->executable_jit != NULL;
+ break;
+
case PCRE_INFO_LASTLITERAL:
*((int *)where) =
- ((re->flags & PCRE_REQCHSET) != 0)? re->req_byte : -1;
+ ((re->flags & PCRE_REQCHSET) != 0)? (int)re->req_char : -1;
break;
+ case PCRE_INFO_REQUIREDCHAR:
+ *((pcre_uint32 *)where) =
+ ((re->flags & PCRE_REQCHSET) != 0) ? re->req_char : 0;
+ break;
+
+ case PCRE_INFO_REQUIREDCHARFLAGS:
+ *((int *)where) =
+ ((re->flags & PCRE_REQCHSET) != 0);
+ break;
+
case PCRE_INFO_NAMEENTRYSIZE:
*((int *)where) = re->name_entry_size;
break;
@@ -138,13 +203,16 @@ switch (what)
break;
case PCRE_INFO_NAMETABLE:
- *((const uschar **)where) = (const uschar *)re + re->name_table_offset;
+ *((const pcre_uchar **)where) = (const pcre_uchar *)re + re->name_table_offset;
break;
case PCRE_INFO_DEFAULT_TABLES:
- *((const uschar **)where) = (const uschar *)(_erts_pcre_default_tables);
+ *((const pcre_uint8 **)where) = (const pcre_uint8 *)(PRIV(default_tables));
break;
+ /* From release 8.00 this will always return TRUE because NOPARTIAL is
+ no longer ever set (the restrictions have been removed). */
+
case PCRE_INFO_OKPARTIAL:
*((int *)where) = (re->flags & PCRE_NOPARTIAL) == 0;
break;
@@ -157,6 +225,20 @@ switch (what)
*((int *)where) = (re->flags & PCRE_HASCRORLF) != 0;
break;
+ case PCRE_INFO_MAXLOOKBEHIND:
+ *((int *)where) = re->max_lookbehind;
+ break;
+
+ case PCRE_INFO_MATCHLIMIT:
+ if ((re->flags & PCRE_MLSET) == 0) return PCRE_ERROR_UNSET;
+ *((pcre_uint32 *)where) = re->limit_match;
+ break;
+
+ case PCRE_INFO_RECURSIONLIMIT:
+ if ((re->flags & PCRE_RLSET) == 0) return PCRE_ERROR_UNSET;
+ *((pcre_uint32 *)where) = re->limit_recursion;
+ break;
+
default: return PCRE_ERROR_BADOPTION;
}
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