author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 11 Jun 2010 14:42:15 +0300 | |
changeset 74 | 91031d3aab7d |
parent 0 | dd21522fd290 |
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/************************************************* |
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* Perl-Compatible Regular Expressions * |
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*************************************************/ |
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/* PCRE is a library of functions to support regular expressions whose syntax |
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and semantics are as close as possible to those of the Perl 5 language. |
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Written by Philip Hazel |
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Copyright (c) 1997-2005 University of Cambridge |
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----------------------------------------------------------------------------- |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright notice, |
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this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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|
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* Neither the name of the University of Cambridge nor the names of its |
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contributors may be used to endorse or promote products derived from |
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this software without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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POSSIBILITY OF SUCH DAMAGE. |
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----------------------------------------------------------------------------- |
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*/ |
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/* This module contains the external function pcre_info(), which gives some |
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information about a compiled pattern. However, use of this function is now |
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deprecated, as it has been superseded by pcre_fullinfo(). */ |
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#include "pcre_internal.h" |
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/************************************************* |
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* (Obsolete) Return info about compiled pattern * |
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*************************************************/ |
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/* This is the original "info" function. It picks potentially useful data out |
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of the private structure, but its interface was too rigid. It remains for |
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backwards compatibility. The public options are passed back in an int - though |
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the re->options field has been expanded to a long int, all the public options |
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at the low end of it, and so even on 16-bit systems this will still be OK. |
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Therefore, I haven't changed the API for pcre_info(). |
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Arguments: |
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argument_re points to compiled code |
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optptr where to pass back the options |
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first_byte where to pass back the first character, |
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or -1 if multiline and all branches start ^, |
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or -2 otherwise |
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Returns: number of capturing subpatterns |
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or negative values on error |
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*/ |
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PCRE_EXPORT int |
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pcre_info(const pcre *argument_re, int *optptr, int *first_byte) |
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{ |
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real_pcre internal_re; |
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const real_pcre *re = (const real_pcre *)argument_re; |
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if (re == NULL) return PCRE_ERROR_NULL; |
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if (re->magic_number != MAGIC_NUMBER) |
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{ |
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re = _pcre_try_flipped(re, &internal_re, NULL, NULL); |
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if (re == NULL) return PCRE_ERROR_BADMAGIC; |
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} |
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if (optptr != NULL) *optptr = (int)(re->options & PUBLIC_OPTIONS); |
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if (first_byte != NULL) |
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*first_byte = ((re->options & PCRE_FIRSTSET) != 0)? re->first_byte : |
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((re->options & PCRE_STARTLINE) != 0)? -1 : -2; |
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return re->top_bracket; |
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} |
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/* End of pcre_info.c */ |