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|
{**************************************************************************************************}
{ }
{ Project JEDI Code Library (JCL) }
{ }
{ The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License"); }
{ you may not use this file except in compliance with the License. You may obtain a copy of the }
{ License at http://www.mozilla.org/MPL/ }
{ }
{ Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF }
{ ANY KIND, either express or implied. See the License for the specific language governing rights }
{ and limitations under the License. }
{ }
{ The Original Code is JclPRCE.pas. }
{ }
{ The Initial Developer of the Original Code is Peter Thornqvist. }
{ Portions created by Peter Thornqvist are Copyright (C) of Peter Thornqvist. All rights reserved. }
{ Portions created by University of Cambridge are }
{ Copyright (C) 1997-2001 by University of Cambridge. }
{ }
{ Contributor(s): }
{ Robert Rossmair (rrossmair) }
{ Mario R. Carro }
{ Florent Ouchet (outchy) }
{ }
{ The latest release of PCRE is always available from }
{ ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.tar.gz }
{ }
{**************************************************************************************************}
{ }
{ Header conversion of pcre.h }
{ }
{ }
{**************************************************************************************************}
{ }
{ Last modified: $Date:: $ }
{ Revision: $Rev:: $ }
{ Author: $Author:: $ }
{ }
{**************************************************************************************************}
unit pcre;
interface
(*************************************************
* Perl-Compatible Regular Expressions *
*************************************************)
{$IFDEF FPC}
{$MODE DELPHI}
{$PACKENUM 4} (* use 4-byte enums *)
{$PACKRECORDS C} (* C/C++-compatible record packing *)
{$ELSE}
{$MINENUMSIZE 4} (* use 4-byte enums *)
{$ENDIF}
{$WEAKPACKAGEUNIT ON}
(*$HPPEMIT '#include "pcre.h"'*)
const
MAX_PATTERN_LENGTH = $10003;
{$EXTERNALSYM MAX_PATTERN_LENGTH}
MAX_QUANTIFY_REPEAT = $10000;
{$EXTERNALSYM MAX_QUANTIFY_REPEAT}
MAX_CAPTURE_COUNT = $FFFF;
{$EXTERNALSYM MAX_CAPTURE_COUNT}
MAX_NESTING_DEPTH = 200;
{$EXTERNALSYM MAX_NESTING_DEPTH}
const
(* Options *)
PCRE_CASELESS = $00000001;
{$EXTERNALSYM PCRE_CASELESS}
PCRE_MULTILINE = $00000002;
{$EXTERNALSYM PCRE_MULTILINE}
PCRE_DOTALL = $00000004;
{$EXTERNALSYM PCRE_DOTALL}
PCRE_EXTENDED = $00000008;
{$EXTERNALSYM PCRE_EXTENDED}
PCRE_ANCHORED = $00000010;
{$EXTERNALSYM PCRE_ANCHORED}
PCRE_DOLLAR_ENDONLY = $00000020;
{$EXTERNALSYM PCRE_DOLLAR_ENDONLY}
PCRE_EXTRA = $00000040;
{$EXTERNALSYM PCRE_EXTRA}
PCRE_NOTBOL = $00000080;
{$EXTERNALSYM PCRE_NOTBOL}
PCRE_NOTEOL = $00000100;
{$EXTERNALSYM PCRE_NOTEOL}
PCRE_UNGREEDY = $00000200;
{$EXTERNALSYM PCRE_UNGREEDY}
PCRE_NOTEMPTY = $00000400;
{$EXTERNALSYM PCRE_NOTEMPTY}
PCRE_UTF8 = $00000800;
{$EXTERNALSYM PCRE_UTF8}
PCRE_NO_AUTO_CAPTURE = $00001000;
{$EXTERNALSYM PCRE_NO_AUTO_CAPTURE}
PCRE_NO_UTF8_CHECK = $00002000;
{$EXTERNALSYM PCRE_NO_UTF8_CHECK}
PCRE_AUTO_CALLOUT = $00004000;
{$EXTERNALSYM PCRE_AUTO_CALLOUT}
PCRE_PARTIAL_SOFT = $00008000;
{$EXTERNALSYM PCRE_PARTIAL_SOFT}
PCRE_PARTIAL = PCRE_PARTIAL_SOFT; // Backwards compatible synonym
{$EXTERNALSYM PCRE_PARTIAL}
PCRE_DFA_SHORTEST = $00010000;
{$EXTERNALSYM PCRE_DFA_SHORTEST}
PCRE_DFA_RESTART = $00020000;
{$EXTERNALSYM PCRE_DFA_RESTART}
PCRE_FIRSTLINE = $00040000;
{$EXTERNALSYM PCRE_FIRSTLINE}
PCRE_DUPNAMES = $00080000;
{$EXTERNALSYM PCRE_DUPNAMES}
PCRE_NEWLINE_CR = $00100000;
{$EXTERNALSYM PCRE_NEWLINE_CR}
PCRE_NEWLINE_LF = $00200000;
{$EXTERNALSYM PCRE_NEWLINE_LF}
PCRE_NEWLINE_CRLF = $00300000;
{$EXTERNALSYM PCRE_NEWLINE_CRLF}
PCRE_NEWLINE_ANY = $00400000;
{$EXTERNALSYM PCRE_NEWLINE_ANY}
PCRE_NEWLINE_ANYCRLF = $00500000;
{$EXTERNALSYM PCRE_NEWLINE_ANYCRLF}
PCRE_BSR_ANYCRLF = $00800000;
{$EXTERNALSYM PCRE_BSR_ANYCRLF}
PCRE_BSR_UNICODE = $01000000;
{$EXTERNALSYM PCRE_BSR_UNICODE}
PCRE_JAVASCRIPT_COMPAT = $02000000;
{$EXTERNALSYM PCRE_JAVASCRIPT_COMPAT}
PCRE_NO_START_OPTIMIZE = $04000000;
{$EXTERNALSYM PCRE_NO_START_OPTIMIZE}
PCRE_NO_START_OPTIMISE = $04000000;
{$EXTERNALSYM PCRE_NO_START_OPTIMISE}
PCRE_PARTIAL_HARD = $08000000;
{$EXTERNALSYM PCRE_PARTIAL_HARD}
PCRE_NOTEMPTY_ATSTART = $10000000;
{$EXTERNALSYM PCRE_NOTEMPTY_ATSTART}
(* Exec-time and get-time error codes *)
PCRE_ERROR_NOMATCH = -1;
{$EXTERNALSYM PCRE_ERROR_NOMATCH}
PCRE_ERROR_NULL = -2;
{$EXTERNALSYM PCRE_ERROR_NULL}
PCRE_ERROR_BADOPTION = -3;
{$EXTERNALSYM PCRE_ERROR_BADOPTION}
PCRE_ERROR_BADMAGIC = -4;
{$EXTERNALSYM PCRE_ERROR_BADMAGIC}
PCRE_ERROR_UNKNOWN_NODE = -5;
{$EXTERNALSYM PCRE_ERROR_UNKNOWN_NODE}
PCRE_ERROR_NOMEMORY = -6;
{$EXTERNALSYM PCRE_ERROR_NOMEMORY}
PCRE_ERROR_NOSUBSTRING = -7;
{$EXTERNALSYM PCRE_ERROR_NOSUBSTRING}
PCRE_ERROR_MATCHLIMIT = -8;
{$EXTERNALSYM PCRE_ERROR_MATCHLIMIT}
PCRE_ERROR_CALLOUT = -9; (* Never used by PCRE itself *)
{$EXTERNALSYM PCRE_ERROR_CALLOUT}
PCRE_ERROR_BADUTF8 = -10;
{$EXTERNALSYM PCRE_ERROR_BADUTF8}
PCRE_ERROR_BADUTF8_OFFSET = -11;
{$EXTERNALSYM PCRE_ERROR_BADUTF8_OFFSET}
PCRE_ERROR_PARTIAL = -12;
{$EXTERNALSYM PCRE_ERROR_PARTIAL}
PCRE_ERROR_BADPARTIAL = -13;
{$EXTERNALSYM PCRE_ERROR_BADPARTIAL}
PCRE_ERROR_INTERNAL = -14;
{$EXTERNALSYM PCRE_ERROR_INTERNAL}
PCRE_ERROR_BADCOUNT = -15;
{$EXTERNALSYM PCRE_ERROR_BADCOUNT}
PCRE_ERROR_DFA_UITEM = -16;
{$EXTERNALSYM PCRE_ERROR_DFA_UITEM}
PCRE_ERROR_DFA_UCOND = -17;
{$EXTERNALSYM PCRE_ERROR_DFA_UCOND}
PCRE_ERROR_DFA_UMLIMIT = -18;
{$EXTERNALSYM PCRE_ERROR_DFA_UMLIMIT}
PCRE_ERROR_DFA_WSSIZE = -19;
{$EXTERNALSYM PCRE_ERROR_DFA_WSSIZE}
PCRE_ERROR_DFA_RECURSE = -20;
{$EXTERNALSYM PCRE_ERROR_DFA_RECURSE}
PCRE_ERROR_RECURSIONLIMIT = -21;
{$EXTERNALSYM PCRE_ERROR_RECURSIONLIMIT}
PCRE_ERROR_NULLWSLIMIT = -22; (* No longer actually used *)
{$EXTERNALSYM PCRE_ERROR_NULLWSLIMIT}
PCRE_ERROR_BADNEWLINE = -23;
{$EXTERNALSYM PCRE_ERROR_BADNEWLINE}
(* Request types for pcre_fullinfo() *)
PCRE_INFO_OPTIONS = 0;
{$EXTERNALSYM PCRE_INFO_OPTIONS}
PCRE_INFO_SIZE = 1;
{$EXTERNALSYM PCRE_INFO_SIZE}
PCRE_INFO_CAPTURECOUNT = 2;
{$EXTERNALSYM PCRE_INFO_CAPTURECOUNT}
PCRE_INFO_BACKREFMAX = 3;
{$EXTERNALSYM PCRE_INFO_BACKREFMAX}
PCRE_INFO_FIRSTCHAR = 4;
{$EXTERNALSYM PCRE_INFO_FIRSTCHAR}
PCRE_INFO_FIRSTTABLE = 5;
{$EXTERNALSYM PCRE_INFO_FIRSTTABLE}
PCRE_INFO_LASTLITERAL = 6;
{$EXTERNALSYM PCRE_INFO_LASTLITERAL}
PCRE_INFO_NAMEENTRYSIZE = 7;
{$EXTERNALSYM PCRE_INFO_NAMEENTRYSIZE}
PCRE_INFO_NAMECOUNT = 8;
{$EXTERNALSYM PCRE_INFO_NAMECOUNT}
PCRE_INFO_NAMETABLE = 9;
{$EXTERNALSYM PCRE_INFO_NAMETABLE}
PCRE_INFO_STUDYSIZE = 10;
{$EXTERNALSYM PCRE_INFO_STUDYSIZE}
PCRE_INFO_DEFAULT_TABLES = 11;
{$EXTERNALSYM PCRE_INFO_DEFAULT_TABLES}
PCRE_INFO_OKPARTIAL = 12;
{$EXTERNALSYM PCRE_INFO_OKPARTIAL}
PCRE_INFO_JCHANGED = 13;
{$EXTERNALSYM PCRE_INFO_JCHANGED}
PCRE_INFO_HASCRORLF = 14;
{$EXTERNALSYM PCRE_INFO_HASCRORLF}
PCRE_INFO_MINLENGTH = 15;
{$EXTERNALSYM PCRE_INFO_MINLENGTH}
(* Request types for pcre_config() *)
PCRE_CONFIG_UTF8 = 0;
{$EXTERNALSYM PCRE_CONFIG_UTF8}
PCRE_CONFIG_NEWLINE = 1;
{$EXTERNALSYM PCRE_CONFIG_NEWLINE}
PCRE_CONFIG_LINK_SIZE = 2;
{$EXTERNALSYM PCRE_CONFIG_LINK_SIZE}
PCRE_CONFIG_POSIX_MALLOC_THRESHOLD = 3;
{$EXTERNALSYM PCRE_CONFIG_POSIX_MALLOC_THRESHOLD}
PCRE_CONFIG_MATCH_LIMIT = 4;
{$EXTERNALSYM PCRE_CONFIG_MATCH_LIMIT}
PCRE_CONFIG_STACKRECURSE = 5;
{$EXTERNALSYM PCRE_CONFIG_STACKRECURSE}
PCRE_CONFIG_UNICODE_PROPERTIES = 6;
{$EXTERNALSYM PCRE_CONFIG_UNICODE_PROPERTIES}
PCRE_CONFIG_MATCH_LIMIT_RECURSION = 7;
{$EXTERNALSYM PCRE_CONFIG_MATCH_LIMIT_RECURSION}
PCRE_CONFIG_BSR = 8;
{$EXTERNALSYM PCRE_CONFIG_BSR}
(* Bit flags for the pcre_extra structure *)
PCRE_EXTRA_STUDY_DATA = $0001;
{$EXTERNALSYM PCRE_EXTRA_STUDY_DATA}
PCRE_EXTRA_MATCH_LIMIT = $0002;
{$EXTERNALSYM PCRE_EXTRA_MATCH_LIMIT}
PCRE_EXTRA_CALLOUT_DATA = $0004;
{$EXTERNALSYM PCRE_EXTRA_CALLOUT_DATA}
PCRE_EXTRA_TABLES = $0008;
{$EXTERNALSYM PCRE_EXTRA_TABLES}
PCRE_EXTRA_MATCH_LIMIT_RECURSION = $0010;
{$EXTERNALSYM PCRE_EXTRA_MATCH_LIMIT_RECURSION}
type
{$IFNDEF FPC}
{$IFDEF CPU64}
SizeInt = Int64;
{$ELSE ~CPU64}
SizeInt = Integer;
{$ENDIF ~CPU64}
PPAnsiChar = ^PAnsiChar;
{$ENDIF ~FPC}
PPPAnsiChar = ^PPAnsiChar;
real_pcre = packed record
{magic_number: Longword;
size: Integer;
tables: PAnsiChar;
options: Longword;
top_bracket: Word;
top_backref: word;
first_char: PAnsiChar;
req_char: PAnsiChar;
code: array [0..0] of AnsiChar;}
end;
TPCRE = real_pcre;
PPCRE = ^TPCRE;
real_pcre_extra = packed record
{options: PAnsiChar;
start_bits: array [0..31] of AnsiChar;}
flags: Cardinal; (* Bits for which fields are set *)
study_data: Pointer; (* Opaque data from pcre_study() *)
match_limit: Cardinal; (* Maximum number of calls to match() *)
callout_data: Pointer; (* Data passed back in callouts *)
tables: PAnsiChar; (* Pointer to character tables *)
match_limit_recursion: Cardinal; (* Max recursive calls to match() *)
end;
TPCREExtra = real_pcre_extra;
PPCREExtra = ^TPCREExtra;
pcre_callout_block = packed record
version: Integer; (* Identifies version of block *)
(* ------------------------ Version 0 ------------------------------- *)
callout_number: Integer; (* Number compiled into pattern *)
offset_vector: PInteger; (* The offset vector *)
subject: PAnsiChar; (* The subject being matched *)
subject_length: Integer; (* The length of the subject *)
start_match: Integer; (* Offset to start of this match attempt *)
current_position: Integer; (* Where we currently are in the subject *)
capture_top: Integer; (* Max current capture *)
capture_last: Integer; (* Most recently closed capture *)
callout_data: Pointer; (* Data passed in with the call *)
(* ------------------- Added for Version 1 -------------------------- *)
pattern_position: Integer; (* Offset to next item in the pattern *)
next_item_length: Integer; (* Length of next item in the pattern *)
(* ------------------------------------------------------------------ *)
end;
pcre_malloc_callback = function(Size: SizeInt): Pointer; cdecl;
{$EXTERNALSYM pcre_malloc_callback}
pcre_free_callback = procedure(P: Pointer); cdecl;
{$EXTERNALSYM pcre_free_callback}
pcre_stack_malloc_callback = function(Size: SizeInt): Pointer; cdecl;
{$EXTERNALSYM pcre_stack_malloc_callback}
pcre_stack_free_callback = procedure(P: Pointer); cdecl;
{$EXTERNALSYM pcre_stack_free_callback}
pcre_callout_callback = function(var callout_block: pcre_callout_block): Integer; cdecl;
{$EXTERNALSYM pcre_callout_callback}
var
// renamed from "pcre_X" to "pcre_X_func" to allow functions with name "pcre_X" to be
// declared in implementation when static linked
pcre_malloc_func: ^pcre_malloc_callback = nil;
{$EXTERNALSYM pcre_malloc_func}
pcre_free_func: ^pcre_free_callback = nil;
{$EXTERNALSYM pcre_free_func}
pcre_stack_malloc_func: ^pcre_stack_malloc_callback = nil;
{$EXTERNALSYM pcre_stack_malloc_func}
pcre_stack_free_func: ^pcre_stack_free_callback = nil;
{$EXTERNALSYM pcre_stack_free_func}
pcre_callout_func: ^pcre_callout_callback = nil;
{$EXTERNALSYM pcre_callout_func}
procedure SetPCREMallocCallback(const Value: pcre_malloc_callback);
{$EXTERNALSYM SetPCREMallocCallback}
function GetPCREMallocCallback: pcre_malloc_callback;
{$EXTERNALSYM GetPCREMallocCallback}
function CallPCREMalloc(Size: SizeInt): Pointer;
{$EXTERNALSYM CallPCREMalloc}
procedure SetPCREFreeCallback(const Value: pcre_free_callback);
{$EXTERNALSYM SetPCREFreeCallback}
function GetPCREFreeCallback: pcre_free_callback;
{$EXTERNALSYM GetPCREFreeCallback}
procedure CallPCREFree(P: Pointer);
{$EXTERNALSYM CallPCREFree}
procedure SetPCREStackMallocCallback(const Value: pcre_stack_malloc_callback);
{$EXTERNALSYM SetPCREStackMallocCallback}
function GetPCREStackMallocCallback: pcre_stack_malloc_callback;
{$EXTERNALSYM GetPCREStackMallocCallback}
function CallPCREStackMalloc(Size: SizeInt): Pointer;
{$EXTERNALSYM CallPCREStackMalloc}
procedure SetPCREStackFreeCallback(const Value: pcre_stack_free_callback);
{$EXTERNALSYM SetPCREStackFreeCallback}
function GetPCREStackFreeCallback: pcre_stack_free_callback;
{$EXTERNALSYM GetPCREStackFreeCallback}
procedure CallPCREStackFree(P: Pointer);
{$EXTERNALSYM CallPCREStackFree}
procedure SetPCRECalloutCallback(const Value: pcre_callout_callback);
{$EXTERNALSYM SetPCRECalloutCallback}
function GetPCRECalloutCallback: pcre_callout_callback;
{$EXTERNALSYM GetPCRECalloutCallback}
function CallPCRECallout(var callout_block: pcre_callout_block): Integer;
{$EXTERNALSYM CallPCRECallout}
type
TPCRELibNotLoadedHandler = procedure; cdecl;
var
// Value to initialize function pointers below with, in case LoadPCRE fails
// or UnloadPCRE is called. Typically the handler will raise an exception.
LibNotLoadedHandler: TPCRELibNotLoadedHandler = nil;
(* Functions *)
// dynamic dll import
type
pcre_compile_func = function(const pattern: PAnsiChar; options: Integer;
const errptr: PPAnsiChar; erroffset: PInteger; const tableptr: PAnsiChar): PPCRE;
cdecl;
{$EXTERNALSYM pcre_compile_func}
pcre_compile2_func = function(const pattern: PAnsiChar; options: Integer;
const errorcodeptr: PInteger; const errorptr: PPAnsiChar; erroroffset: PInteger;
const tables: PAnsiChar): PPCRE; cdecl;
{$EXTERNALSYM pcre_compile2_func}
pcre_config_func = function(what: Integer; where: Pointer): Integer;
cdecl;
{$EXTERNALSYM pcre_config_func}
pcre_copy_named_substring_func = function(const code: PPCRE; const subject: PAnsiChar;
ovector: PInteger; stringcount: Integer; const stringname: PAnsiChar;
buffer: PAnsiChar; size: Integer): Integer; cdecl;
{$EXTERNALSYM pcre_copy_named_substring_func}
pcre_copy_substring_func = function(const subject: PAnsiChar; ovector: PInteger;
stringcount, stringnumber: Integer; buffer: PAnsiChar; buffersize: Integer): Integer;
cdecl;
{$EXTERNALSYM pcre_copy_substring_func}
pcre_dfa_exec_func = function(const argument_re: PPCRE; const extra_data: PPCREExtra;
const subject: PAnsiChar; length: Integer; start_offset: Integer;
options: Integer; offsets: PInteger; offsetcount: Integer; workspace: PInteger;
wscount: Integer): Integer; cdecl;
{$EXTERNALSYM pcre_dfa_exec_func}
pcre_exec_func = function(const code: PPCRE; const extra: PPCREExtra; const subject: PAnsiChar;
length, startoffset, options: Integer; ovector: PInteger; ovecsize: Integer): Integer;
cdecl;
{$EXTERNALSYM pcre_exec_func}
pcre_free_substring_func = procedure(stringptr: PAnsiChar);
cdecl;
{$EXTERNALSYM pcre_free_substring_func}
pcre_free_substring_list_func = procedure(stringptr: PPAnsiChar);
cdecl;
{$EXTERNALSYM pcre_free_substring_list_func}
pcre_fullinfo_func = function(const code: PPCRE; const extra: PPCREExtra;
what: Integer; where: Pointer): Integer;
cdecl;
{$EXTERNALSYM pcre_fullinfo_func}
pcre_get_named_substring_func = function(const code: PPCRE; const subject: PAnsiChar;
ovector: PInteger; stringcount: Integer; const stringname: PAnsiChar;
const stringptr: PPAnsiChar): Integer; cdecl;
{$EXTERNALSYM pcre_get_named_substring_func}
pcre_get_stringnumber_func = function(const code: PPCRE;
const stringname: PAnsiChar): Integer; cdecl;
{$EXTERNALSYM pcre_get_stringnumber_func}
pcre_get_stringtable_entries_func = function(const code: PPCRE; const stringname: PAnsiChar;
firstptr: PPAnsiChar; lastptr: PPAnsiChar): Integer;
cdecl;
{$EXTERNALSYM pcre_get_stringtable_entries_func}
pcre_get_substring_func = function(const subject: PAnsiChar; ovector: PInteger;
stringcount, stringnumber: Integer; const stringptr: PPAnsiChar): Integer;
cdecl;
{$EXTERNALSYM pcre_get_substring_func}
pcre_get_substring_list_func = function(const subject: PAnsiChar; ovector: PInteger;
stringcount: Integer; listptr: PPPAnsiChar): Integer;
cdecl;
{$EXTERNALSYM pcre_get_substring_list_func}
pcre_info_func = function(const code: PPCRE; optptr, firstcharptr: PInteger): Integer;
cdecl;
{$EXTERNALSYM pcre_info_func}
pcre_maketables_func = function: PAnsiChar; cdecl;
{$EXTERNALSYM pcre_maketables_func}
pcre_refcount_func = function(argument_re: PPCRE; adjust: Integer): Integer;
cdecl;
{$EXTERNALSYM pcre_refcount_func}
pcre_study_func = function(const code: PPCRE; options: Integer; const errptr: PPAnsiChar): PPCREExtra;
cdecl;
{$EXTERNALSYM pcre_study_func}
pcre_version_func = function: PAnsiChar; cdecl;
{$EXTERNALSYM pcre_version_func}
var
pcre_compile: pcre_compile_func = nil;
{$EXTERNALSYM pcre_compile}
pcre_compile2: pcre_compile2_func = nil;
{$EXTERNALSYM pcre_compile2}
pcre_config: pcre_config_func = nil;
{$EXTERNALSYM pcre_config}
pcre_copy_named_substring: pcre_copy_named_substring_func = nil;
{$EXTERNALSYM pcre_copy_named_substring}
pcre_copy_substring: pcre_copy_substring_func = nil;
{$EXTERNALSYM pcre_copy_substring}
pcre_dfa_exec: pcre_dfa_exec_func = nil;
{$EXTERNALSYM pcre_dfa_exec}
pcre_exec: pcre_exec_func = nil;
{$EXTERNALSYM pcre_exec}
pcre_free_substring: pcre_free_substring_func = nil;
{$EXTERNALSYM pcre_free_substring}
pcre_free_substring_list: pcre_free_substring_list_func = nil;
{$EXTERNALSYM pcre_free_substring_list}
pcre_fullinfo: pcre_fullinfo_func = nil;
{$EXTERNALSYM pcre_fullinfo}
pcre_get_named_substring: pcre_get_named_substring_func = nil;
{$EXTERNALSYM pcre_get_named_substring}
pcre_get_stringnumber: pcre_get_stringnumber_func = nil;
{$EXTERNALSYM pcre_get_stringnumber}
pcre_get_stringtable_entries: pcre_get_stringtable_entries_func = nil;
{$EXTERNALSYM pcre_get_stringtable_entries}
pcre_get_substring: pcre_get_substring_func = nil;
{$EXTERNALSYM pcre_get_substring}
pcre_get_substring_list: pcre_get_substring_list_func = nil;
{$EXTERNALSYM pcre_get_substring_list}
pcre_info: pcre_info_func = nil;
{$EXTERNALSYM pcre_info}
pcre_maketables: pcre_maketables_func = nil;
{$EXTERNALSYM pcre_maketables}
pcre_refcount: pcre_refcount_func = nil;
{$EXTERNALSYM pcre_refcount}
pcre_study: pcre_study_func = nil;
{$EXTERNALSYM pcre_study}
pcre_version: pcre_version_func = nil;
{$EXTERNALSYM pcre_version}
function IsPCRELoaded: Boolean;
function LoadPCRE: Boolean;
procedure UnloadPCRE;
implementation
uses
SysUtils,
UConfig,
{$IFDEF MSWINDOWS}
Windows;
{$ENDIF MSWINDOWS}
{$IFDEF UNIX}
{$IFDEF HAS_UNIT_TYPES}
Types,
{$ENDIF HAS_UNIT_TYPES}
{$IFDEF HAS_UNIT_LIBC}
Libc;
{$ELSE ~HAS_UNIT_LIBC}
dl;
{$ENDIF ~HAS_UNIT_LIBC}
{$ENDIF UNIX}
type
{$IFDEF MSWINDOWS}
TModuleHandle = HINST;
{$ENDIF MSWINDOWS}
{$IFDEF LINUX}
TModuleHandle = Pointer;
{$ENDIF LINUX}
{$IFDEF DARWIN}
TModuleHandle = Pointer;
{$ENDIF DARWIN}
const
{$IFDEF MSWINDOWS}
libpcremodulename = 'pcre3.dll';
{$ENDIF MSWINDOWS}
{$IFDEF LINUX}
// "libpcre.so.<soname>", soname is different on platforms
libpcremodulename = LIBPCRE_LIBNAME;
{$ENDIF LINUX}
{$IFDEF DARWIN}
libpcremodulename = 'libpcre.dylib'; // this is a symlink for example to libpcre.0.0.1.dylib
// the system resolves the symlink
libpcremodulenamefromfink = LIBPCRE_LIBDIR + '/' + libpcremodulename;
// the install command in the Makefile resolves the symlink, when installing libpcre.dylib in the app bundle
libpcremodulenamefromexecutable = '@executable_path/' + libpcremodulename;
{$ENDIF DARWIN}
PCRECompileExportName = 'pcre_compile';
PCRECompile2ExportName = 'pcre_compile2';
PCREConfigExportName = 'pcre_config';
PCRECopyNamedSubstringExportName = 'pcre_copy_named_substring';
PCRECopySubStringExportName = 'pcre_copy_substring';
PCREDfaExecExportName = 'pcre_dfa_exec';
PCREExecExportName = 'pcre_exec';
PCREFreeSubStringExportName = 'pcre_free_substring';
PCREFreeSubStringListExportName = 'pcre_free_substring_list';
PCREFullInfoExportName = 'pcre_fullinfo';
PCREGetNamedSubstringExportName = 'pcre_get_named_substring';
PCREGetStringNumberExportName = 'pcre_get_stringnumber';
PCREGetStringTableEntriesExportName = 'pcre_get_stringtable_entries';
PCREGetSubStringExportName = 'pcre_get_substring';
PCREGetSubStringListExportName = 'pcre_get_substring_list';
PCREInfoExportName = 'pcre_info';
PCREMakeTablesExportName = 'pcre_maketables';
PCRERefCountExportName = 'pcre_refcount';
PCREStudyExportName = 'pcre_study';
PCREVersionExportName = 'pcre_version';
PCREMallocExportName = 'pcre_malloc';
PCREFreeExportName = 'pcre_free';
PCREStackMallocExportName = 'pcre_stack_malloc';
PCREStackFreeExportName = 'pcre_stack_free';
PCRECalloutExportName = 'pcre_callout';
INVALID_MODULEHANDLE_VALUE = TModuleHandle(0);
var
PCRELib: TModuleHandle = INVALID_MODULEHANDLE_VALUE;
procedure SetPCREMallocCallback(const Value: pcre_malloc_callback);
begin
if not Assigned(pcre_malloc_func) then
LoadPCRE;
if Assigned(pcre_malloc_func) then
pcre_malloc_func^ := Value
else if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end;
function GetPCREMallocCallback: pcre_malloc_callback;
begin
if not Assigned(pcre_malloc_func) then
LoadPCRE;
if not Assigned(pcre_malloc_func) then
begin
Result := nil;
if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end
else
Result := pcre_malloc_func^;
end;
function CallPCREMalloc(Size: SizeInt): Pointer;
begin
Result := pcre_malloc_func^(Size);
end;
procedure SetPCREFreeCallback(const Value: pcre_free_callback);
begin
if not Assigned(pcre_free_func) then
LoadPCRE;
if Assigned(pcre_free_func) then
pcre_free_func^ := Value
else if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end;
function GetPCREFreeCallback: pcre_free_callback;
begin
if not Assigned(pcre_free_func) then
LoadPCRE;
if not Assigned(pcre_free_func) then
begin
Result := nil;
if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end
else
Result := pcre_free_func^
end;
procedure CallPCREFree(P: Pointer);
begin
pcre_free_func^(P);
end;
procedure SetPCREStackMallocCallback(const Value: pcre_stack_malloc_callback);
begin
if not Assigned(pcre_stack_malloc_func) then
LoadPCRE;
if Assigned(pcre_stack_malloc_func) then
pcre_stack_malloc_func^ := Value
else if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end;
function GetPCREStackMallocCallback: pcre_stack_malloc_callback;
begin
if not Assigned(pcre_stack_malloc_func) then
LoadPCRE;
if not Assigned(pcre_stack_malloc_func) then
begin
Result := nil;
if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end
else
Result := pcre_stack_malloc_func^;
end;
function CallPCREStackMalloc(Size: SizeInt): Pointer;
begin
Result := pcre_stack_malloc_func^(Size);
end;
procedure SetPCREStackFreeCallback(const Value: pcre_stack_free_callback);
begin
if not Assigned(pcre_stack_free_func) then
LoadPCRE;
if Assigned(pcre_stack_free_func) then
pcre_stack_free_func^ := Value
else if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end;
function GetPCREStackFreeCallback: pcre_stack_free_callback;
begin
if not Assigned(pcre_stack_free_func) then
LoadPCRE;
if not Assigned(pcre_stack_free_func) then
begin
Result := nil;
if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end
else
Result := pcre_stack_free_func^;
end;
procedure CallPCREStackFree(P: Pointer);
begin
pcre_stack_free_func^(P);
end;
procedure SetPCRECalloutCallback(const Value: pcre_callout_callback);
begin
if not Assigned(pcre_callout_func) then
LoadPCRE;
if Assigned(pcre_callout_func) then
pcre_callout_func^ := Value
else if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end;
function GetPCRECalloutCallback: pcre_callout_callback;
begin
if not Assigned(pcre_callout_func) then
LoadPCRE;
if not Assigned(pcre_callout_func) then
begin
Result := nil;
if Assigned(LibNotLoadedHandler) then
LibNotLoadedHandler;
end
else
Result := pcre_callout_func^;
end;
function CallPCRECallout(var callout_block: pcre_callout_block): Integer;
begin
Result := pcre_callout_func^(callout_block);
end;
procedure InitPCREFuncPtrs(const Value: Pointer);
begin
@pcre_compile := Value;
@pcre_compile2 := Value;
@pcre_config := Value;
@pcre_copy_named_substring := Value;
@pcre_copy_substring := Value;
@pcre_dfa_exec := Value;
@pcre_exec := Value;
@pcre_free_substring := Value;
@pcre_free_substring_list := Value;
@pcre_fullinfo := Value;
@pcre_get_named_substring := Value;
@pcre_get_stringnumber := Value;
@pcre_get_stringtable_entries := Value;
@pcre_get_substring := Value;
@pcre_get_substring_list := Value;
@pcre_info := Value;
@pcre_maketables := Value;
@pcre_refcount := Value;
@pcre_study := Value;
@pcre_version := Value;
pcre_malloc_func := nil;
pcre_free_func := nil;
pcre_stack_malloc_func := nil;
pcre_stack_free_func := nil;
pcre_callout_func := nil;
end;
function IsPCRELoaded: Boolean;
begin
Result := PCRELib <> INVALID_MODULEHANDLE_VALUE;
end;
function LoadPCRE: Boolean;
function GetSymbol(SymbolName: PAnsiChar): Pointer;
begin
{$IFDEF MSWINDOWS}
Result := GetProcAddress(PCRELib, SymbolName);
{$ENDIF MSWINDOWS}
{$IFDEF UNIX}
Result := dlsym(PCRELib, SymbolName);
{$ENDIF UNIX}
end;
begin
Result := PCRELib <> INVALID_MODULEHANDLE_VALUE;
if Result then
Exit;
if PCRELib = INVALID_MODULEHANDLE_VALUE then
{$IFDEF MSWINDOWS}
PCRELib := SafeLoadLibrary(libpcremodulename);
{$ENDIF MSWINDOWS}
{$IFDEF UNIX}
PCRELib := dlopen(PAnsiChar(libpcremodulename), RTLD_NOW);
{$ENDIF UNIX}
{$IFDEF DARWIN} // if libpcre.dylib is not found, first try from the executable path and finally from the fink path
if PCRELib = INVALID_MODULEHANDLE_VALUE then
PCRELib := dlopen(PAnsiChar(libpcremodulenamefromexecutable), RTLD_NOW);
if PCRELib = INVALID_MODULEHANDLE_VALUE then
PCRELib := dlopen(PAnsiChar(libpcremodulenamefromfink), RTLD_NOW);
{$ENDIF DARWIN}
Result := PCRELib <> INVALID_MODULEHANDLE_VALUE;
if Result then
begin
@pcre_compile := GetSymbol(PCRECompileExportName);
@pcre_compile2 := GetSymbol(PCRECompile2ExportName);
@pcre_config := GetSymbol(PCREConfigExportName);
@pcre_copy_named_substring := GetSymbol(PCRECopyNamedSubstringExportName);
@pcre_copy_substring := GetSymbol(PCRECopySubStringExportName);
@pcre_dfa_exec := GetSymbol(PCREDfaExecExportName);
@pcre_exec := GetSymbol(PCREExecExportName);
@pcre_free_substring := GetSymbol(PCREFreeSubStringExportName);
@pcre_free_substring_list := GetSymbol(PCREFreeSubStringListExportName);
@pcre_fullinfo := GetSymbol(PCREFullInfoExportName);
@pcre_get_named_substring := GetSymbol(PCREGetNamedSubstringExportName);
@pcre_get_stringnumber := GetSymbol(PCREGetStringNumberExportName);
@pcre_get_stringtable_entries := GetSymbol(PCREGetStringTableEntriesExportName);
@pcre_get_substring := GetSymbol(PCREGetSubStringExportName);
@pcre_get_substring_list := GetSymbol(PCREGetSubStringListExportName);
@pcre_info := GetSymbol(PCREInfoExportName);
@pcre_maketables := GetSymbol(PCREMakeTablesExportName);
@pcre_refcount := GetSymbol(PCRERefCountExportName);
@pcre_study := GetSymbol(PCREStudyExportName);
@pcre_version := GetSymbol(PCREVersionExportName);
pcre_malloc_func := GetSymbol(PCREMallocExportName);
pcre_free_func := GetSymbol(PCREFreeExportName);
pcre_stack_malloc_func := GetSymbol(PCREStackMallocExportName);
pcre_stack_free_func := GetSymbol(PCREStackFreeExportName);
pcre_callout_func := GetSymbol(PCRECalloutExportName);
end
else
InitPCREFuncPtrs(@LibNotLoadedHandler);
end;
procedure UnloadPCRE;
begin
if PCRELib <> INVALID_MODULEHANDLE_VALUE then
{$IFDEF MSWINDOWS}
FreeLibrary(PCRELib);
{$ENDIF MSWINDOWS}
{$IFDEF UNIX}
dlclose(Pointer(PCRELib));
{$ENDIF UNIX}
PCRELib := INVALID_MODULEHANDLE_VALUE;
InitPCREFuncPtrs(@LibNotLoadedHandler);
end;
(*
function pcre_compile; external libpcremodulename name PCRECompileExportName;
function pcre_compile2; external libpcremodulename name PCRECompile2ExportName;
function pcre_config; external libpcremodulename name PCREConfigExportName;
function pcre_copy_named_substring; external libpcremodulename name PCRECopyNamedSubStringExportName;
function pcre_copy_substring; external libpcremodulename name PCRECopySubStringExportName;
function pcre_dfa_exec; external libpcremodulename name PCREDfaExecExportName;
function pcre_exec; external libpcremodulename name PCREExecExportName;
procedure pcre_free_substring; external libpcremodulename name PCREFreeSubStringExportName;
procedure pcre_free_substring_list; external libpcremodulename name PCREFreeSubStringListExportName;
function pcre_fullinfo; external libpcremodulename name PCREFullInfoExportName;
function pcre_get_named_substring; external libpcremodulename name PCREGetNamedSubStringExportName;
function pcre_get_stringnumber; external libpcremodulename name PCREGetStringNumberExportName;
function pcre_get_stringtable_entries; external libpcremodulename name PCREGetStringTableEntriesExportName;
function pcre_get_substring; external libpcremodulename name PCREGetSubStringExportName;
function pcre_get_substring_list; external libpcremodulename name PCREGetSubStringListExportName;
function pcre_info; external libpcremodulename name PCREInfoExportName;
function pcre_maketables; external libpcremodulename name PCREMakeTablesExportName;
function pcre_refcount; external libpcremodulename name PCRERefCountExportName;
function pcre_study; external libpcremodulename name PCREStudyExportName;
function pcre_version; external libpcremodulename name PCREVersionExportName;
*)
end.
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