/************************************************* * 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 Original API code Copyright (c) 1997-2012 University of Cambridge New API code Copyright (c) 2016-2023 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. ----------------------------------------------------------------------------- */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "pcre2_internal.h" #define STRING(a) … #define XSTRING(s) … /* The texts of compile-time error messages. Compile-time error numbers start at COMPILE_ERROR_BASE (100). This used to be a table of strings, but in order to reduce the number of relocations needed when a shared library is loaded dynamically, it is now one long string. We cannot use a table of offsets, because the lengths of inserts such as XSTRING(MAX_NAME_SIZE) are not known. Instead, pcre2_get_error_message() counts through to the one it wants - this isn't a performance issue because these strings are used only when there is an error. Each substring ends with \0 to insert a null character. This includes the final substring, so that the whole string ends with \0\0, which can be detected when counting through. */ static const unsigned char compile_error_texts[] = … ; /* Match-time and UTF error texts are in the same format. */ static const unsigned char match_error_texts[] = … ; /************************************************* * Return error message * *************************************************/ /* This function copies an error message into a buffer whose units are of an appropriate width. Error numbers are positive for compile-time errors, and negative for match-time errors (except for UTF errors), but the numbers are all distinct. Arguments: enumber error number buffer where to put the message (zero terminated) size size of the buffer in code units Returns: length of message if all is well negative on error */ PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION pcre2_get_error_message(int enumber, PCRE2_UCHAR *buffer, PCRE2_SIZE size) { … } /* End of pcre2_error.c */
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