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+/*************************************************
+* 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 the external function pcre_fullinfo(), which returns
+information about a compiled pattern. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+* Return info about compiled pattern *
+*************************************************/
+
+/* This is a newer "info" function which has an extensible interface so
+that additional items can be added compatibly.
+
+Arguments:
+ argument_re points to compiled code
+ extra_data points extra data, or NULL
+ what what information is required
+ where where to put the information
+
+Returns: 0 if data returned, negative on error
+*/
+
+#if defined COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_fullinfo(const pcre *argument_re, const pcre_extra *extra_data,
+ int what, void *where)
+#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
+{
+const REAL_PCRE *re = (const REAL_PCRE *)argument_re;
+const pcre_study_data *study = NULL;
+
+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)
+ 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_COMPILE_OPTIONS;
+ break;
+
+ case PCRE_INFO_SIZE:
+ *((size_t *)where) = re->size;
+ break;
+
+ case PCRE_INFO_STUDYSIZE:
+ *((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;
+
+ case PCRE_INFO_BACKREFMAX:
+ *((int *)where) = re->top_backref;
+ break;
+
+ case PCRE_INFO_FIRSTBYTE:
+ *((int *)where) =
+ ((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 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)? (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;
+
+ case PCRE_INFO_NAMECOUNT:
+ *((int *)where) = re->name_count;
+ break;
+
+ case PCRE_INFO_NAMETABLE:
+ *((const pcre_uchar **)where) = (const pcre_uchar *)re + re->name_table_offset;
+ break;
+
+ case PCRE_INFO_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;
+
+ case PCRE_INFO_JCHANGED:
+ *((int *)where) = (re->flags & PCRE_JCHANGED) != 0;
+ break;
+
+ case PCRE_INFO_HASCRORLF:
+ *((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;
+
+ case PCRE_INFO_MATCH_EMPTY:
+ *((int *)where) = (re->flags & PCRE_MATCH_EMPTY) != 0;
+ break;
+
+ default: return PCRE_ERROR_BADOPTION;
+ }
+
+return 0;
+}
+
+/* End of pcre_fullinfo.c */