jscript: Moved generic regular expressions code to separate file.

dlls/jscript/Makefile.in

@@ -15,6 +15,7 @@ C_SRCS = \
 	global.c \
 	jscript.c \
 	jscript_main.c \
+	jsregexp.c \
 	jsstr.c \
 	jsutils.c \
 	lex.c \

dlls/jscript/regexp.h

+/*
+ * Copyright 2008 Jacek Caban for CodeWeavers
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+/*
+ * Code in this file is based on files:
+ * js/src/jsregexp.h
+ * js/src/jsregexp.c
+ * from Mozilla project, released under LGPL 2.1 or later.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ */
+
+#define JSREG_FOLD      0x01    /* fold uppercase to lowercase */
+#define JSREG_GLOB      0x02    /* global exec, creates array of matches */
+#define JSREG_MULTILINE 0x04    /* treat ^ and $ as begin and end of line */
+#define JSREG_STICKY    0x08    /* only match starting at lastIndex */
+
+typedef struct RECapture {
+    ptrdiff_t index;            /* start of contents, -1 for empty  */
+    size_t length;              /* length of capture */
+} RECapture;
+
+typedef struct REMatchState {
+    const WCHAR *cp;
+    RECapture parens[1];      /* first of 're->parenCount' captures,
+                                 allocated at end of this struct */
+} REMatchState;
+
+
+typedef BYTE JSPackedBool;
+typedef BYTE jsbytecode;
+
+/*
+ * This struct holds a bitmap representation of a class from a regexp.
+ * There's a list of these referenced by the classList field in the JSRegExp
+ * struct below. The initial state has startIndex set to the offset in the
+ * original regexp source of the beginning of the class contents. The first
+ * use of the class converts the source representation into a bitmap.
+ *
+ */
+typedef struct RECharSet {
+    JSPackedBool    converted;
+    JSPackedBool    sense;
+    WORD            length;
+    union {
+        BYTE        *bits;
+        struct {
+            size_t  startIndex;
+            size_t  length;
+        } src;
+    } u;
+} RECharSet;
+
+typedef struct JSRegExp {
+    WORD         flags;         /* flags, see jsapi.h's JSREG_* defines */
+    size_t       parenCount;    /* number of parenthesized submatches */
+    size_t       classCount;    /* count [...] bitmaps */
+    RECharSet    *classList;    /* list of [...] bitmaps */
+    const WCHAR  *source;       /* locked source string, sans // */
+    DWORD        source_len;
+    jsbytecode   program[1];    /* regular expression bytecode */
+} JSRegExp;
+
+JSRegExp* js_NewRegExp(void *cx, heap_pool_t *pool, const WCHAR *str,
+        DWORD str_len, UINT flags, BOOL flat) DECLSPEC_HIDDEN;
+void js_DestroyRegExp(JSRegExp *re) DECLSPEC_HIDDEN;
+HRESULT MatchRegExpNext(JSRegExp *jsregexp, const WCHAR *str,
+        DWORD str_len, const WCHAR **cp, heap_pool_t *pool,
+        REMatchState **result, DWORD *matchlen) DECLSPEC_HIDDEN;