| /************************************************* |
| * 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) 1997-2008 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_info(), which gives some |
| information about a compiled pattern. However, use of this function is now |
| deprecated, as it has been superseded by pcre_fullinfo(). */ |
| |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include "pcre_internal.h" |
| |
| |
| /************************************************* |
| * (Obsolete) Return info about compiled pattern * |
| *************************************************/ |
| |
| /* This is the original "info" function. It picks potentially useful data out |
| of the private structure, but its interface was too rigid. It remains for |
| backwards compatibility. The public options are passed back in an int - though |
| the re->options field has been expanded to a long int, all the public options |
| at the low end of it, and so even on 16-bit systems this will still be OK. |
| Therefore, I haven't changed the API for pcre_info(). |
| |
| Arguments: |
| argument_re points to compiled code |
| optptr where to pass back the options |
| first_byte where to pass back the first character, |
| or -1 if multiline and all branches start ^, |
| or -2 otherwise |
| |
| Returns: number of capturing subpatterns |
| or negative values on error |
| */ |
| |
| PCRE_EXP_DEFN int PCRE_CALL_CONVENTION |
| pcre_info(const pcre *argument_re, int *optptr, int *first_byte) |
| { |
| real_pcre internal_re; |
| const real_pcre *re = (const real_pcre *)argument_re; |
| if (re == NULL) return PCRE_ERROR_NULL; |
| if (re->magic_number != MAGIC_NUMBER) |
| { |
| re = _pcre_try_flipped(re, &internal_re, NULL, NULL); |
| if (re == NULL) return PCRE_ERROR_BADMAGIC; |
| } |
| if (optptr != NULL) *optptr = (int)(re->options & PUBLIC_OPTIONS); |
| if (first_byte != NULL) |
| *first_byte = ((re->flags & PCRE_FIRSTSET) != 0)? re->first_byte : |
| ((re->flags & PCRE_STARTLINE) != 0)? -1 : -2; |
| return re->top_bracket; |
| } |
| |
| /* End of pcre_info.c */ |
